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Nichia Corporation patents


Recent patent applications related to Nichia Corporation. Nichia Corporation is listed as an Agent/Assignee. Note: Nichia Corporation may have other listings under different names/spellings. We're not affiliated with Nichia Corporation, we're just tracking patents.

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 new patent  Nichia Corporation

. . ... Nichia Corporation

 new patent  Light-emitting device

A light-emitting device includes a support body having a wiring pattern; a light-emitting element mounted on the wiring pattern and having a planar shape that is approximately a regular hexagon; and a light transmissive member including: an approximately semispherical lens portion covering the light-emitting element, and a flange portion disposed around a periphery of the lens portion.. . ... Nichia Corporation

 new patent  Method for manufacturing light emitting device

A method for manufacturing a light emitting device includes: providing a substrate; placing a light emitting element on a top surface of the substrate; arranging on the top surface of the substrate a translucent frame body that is spaced apart from the light emitting element and that surrounds the light emitting element so that a top surface of the translucent frame body is at a position higher than a top surface of the light emitting element; arranging a wavelength conversion member in a region surrounded by the translucent frame body so as to cover the top surface and a side surface of the light emitting element and to be in contact with an inside surface of the frame body; and forming a translucent member that covers the substrate, the translucent frame body, and the wavelength conversion member.. . ... Nichia Corporation

 new patent  Composite board, light-emitting device, and manufacturing method of light-emitting device

A composite board is provided with a board and a covering member. The board includes a base made of ceramics, first wiring provided on an upper surface of the base, and second wiring provided on a lower surface of the base and electrically connected to the first wiring. ... Nichia Corporation

 new patent  Fluorescent material, method of producing same, and light emitting device

Provided are a fluorescent material with excellent durability, which emits red light, a method of producing the same, and a light emitting device. The fluorescent material is a fluorescent material including a fluoride-containing fluorescent material core comprising mn, at least one element selected from the group consisting of an alkali metal element and nh4+, and at least one element selected from the group consisting of a group 4 element and a group 14 element in a composition thereof; and at least one of an aluminum hydroxide particle and a calcium hydroxide particle as disposed on a surface of the fluorescent material core.. ... Nichia Corporation

Fluorescent material, light-emitting device, and method for producing fluorescent material

A method for producing a fluorescent material can be provided. The method includes preparing fluorescent material particles that contain a fluoride having a composition including mn, at least one selected from the group consisting of alkali metal elements and nh4+, and at least one selected from the group consisting of group 4 elements and group 14 elements; causing at least one cation selected from rare-earth elements and a phosphate ion to come into contact with each other in a liquid medium containing the fluorescent material particles to obtain rare-earth phosphate-adhered fluorescent material particles including the fluorescent material particles to which the rare-earth phosphate is adhered; and separating the rare-earth phosphate-adhered fluorescent material particles from the liquid medium.. ... Nichia Corporation

Method of manufacturing semiconductor device

A method of manufacturing a semiconductor device includes disposing a substrate metal film on an upper surface of a substrate made of a metal; disposing a first element metal film on a lower surface of a first element; disposing a second element metal film on a lower surface of a second element; bonding the first element and the second element to the substrate so that an upper surface of the substrate metal film is in contact with a lower surface of the first element metal film and a lower surface of the second element metal film; oxidizing at least a portion of a region of the upper surface of the substrate metal film other than regions in contact with the first element metal film and the second element metal film; and disposing a wiring electrically connecting the first element and the second element, across and above the region oxidized.. . ... Nichia Corporation

Light emitting device

A light emitting device includes: a first light emitting element configured to emit light of a first peak wavelength; a second light emitting element configured to emit light of a second peak wavelength that is different from the first peak wavelength; a first light reflecting member disposed in contact with at least one lateral surface of the first light emitting element, the first light reflecting member having an upper surface from which an upper surface of the first light emitting element is exposed; a wavelength conversion member covering the upper surface of the first light emitting element; and a second light reflecting member disposed on the upper surface of the first light reflecting member, the second light reflecting member being located between the second light emitting element and the wavelength conversion member in a plan view.. . ... Nichia Corporation

Light emitting device and method for manufacturing light emitting device

A light emitting device (100) includes a base member (101), electrically conductive members (102a, 102b) disposed on the base member (101), a light emitting element (104) mounted on the electrically conductive members (102a, 102b), an insulating filler (114) covering at least a portion of surfaces of the electrically conductive members (102a, 102b) where the light emitting element (104) is not mounted, and a light transmissive member (108) covering the light emitting element (104).. . ... Nichia Corporation

Light emitting device and method for manufacturing same

A light emitting device includes a light emitting element, a first light transmissive member, and a second light transmissive member. A first lower face of the first light transmissive member is bonded to a light extraction face of the light emitting element and has a first lower face perimeter positioned outside of a light extraction face perimeter of the light extraction face when viewed in a height direction of the light emitting device. ... Nichia Corporation

Light emitting device

Provided is a light emitting device which includes a light emitting element having a peak emission wavelength in a range of 400 nm to 500 nm, and a fluorescent member containing a fluorescent material having a peak emission wavelength in a range of 630 nm to 670 nm, and a composition represented by the formula. Cassrteuusivalwnx. ... Nichia Corporation

Light emitting device

A light emitting device includes a first light emitting element, a second light emitting element, a substrate, and a light reflective covering member. A first land is provided in a substrate front surface and includes a first terminal and a second terminal. ... Nichia Corporation

Metal coating method, light-emitting device, and manufacturing method for the same

A light-emitting device includes: a light-emitting element; a coating member that covers the light-emitting element; and two external connection electrodes exposed form a first surface of the coating member. Each of the external connection electrodes includes an electrode buried in the coating member; and a metal layer formed on the electrode. ... Nichia Corporation

Light emitting device and method of manufacturing same

A light emitting device includes a light emitting element, a reflective member, and a covering member. The light emitting element includes a light extraction surface, an electrode-formed surface on a side opposite to the light extraction surface, lateral surfaces positioned between the light extraction surface and the electrode-formed surface, and a pair of electrodes on the electrode-formed surface. ... Nichia Corporation

04/19/18 / #20180108813

Method for manufacturing light emitting device

A method for manufacturing a light emitting device includes: integrally molding a package and a lead, the package arranged to form at least part of an inner peripheral face of a recess portion in which the light emitting element is housed, the package including a base material and a plurality of particles, the base material including a resin, a coefficient of thermal expansion of the particles being different from a coefficient of thermal expansion of the base material; and covering the inner peripheral face of the recess portion with a cover film, the cover film having light transmissive and electrical insulation.. . ... Nichia Corporation

04/19/18 / #20180106943

Illumination device

An illumination device includes: an optical fiber, the optical fiber allowing light emitted from a light source to be introduced at a first end portion thereof and to be guided through the optical fiber while emitting a portion of the light through a side surface of the optical fiber; a light-transmissive tube, the light-transmissive tube covering the side surface of the optical fiber such that a gap is located between the tube and the side surface of the optical fiber; and a light-shielding cap covering a second end portion of the tube at a side opposite the light source such that a space is located between a bottom portion of the cap and the second end portion of the tube. A second end portion of the optical fiber projects past the second end portion of the tube and is located at an inner side of the cap.. ... Nichia Corporation

04/19/18 / #20180106942

Light-emitting device

A light-emitting device includes a light-emitting element, first and second light-transmissive members disposed on the light-emitting element, a light-guiding member, and a light-reflective member. A perimeter of a lower surface of the first light-transmissive member is disposed inwardly of a perimeter of an upper surface of the light-emitting element in a plan view. ... Nichia Corporation

04/12/18 / #20180102460

Semiconductor light emitting element and method of manufacturing the same

A semiconductor light emitting element having: a semiconductor laminated body; a full surface electrode containing an ag provided on an upper surface of the p-type semiconductor layer; a cover electrode that covers a surface of the full surface electrode, is provided to contact on the upper surface of the p-type semiconductor layer at an outer edge of the full surface electrode, and is made of an al-based metal material; a p-side electrode that is provided on a portion of a surface of the cover electrode; a metal oxide film that covers other surfaces of the cover electrode and contains an oxide of a metal material forming the cover electrode; and an insulation film that is made of an oxide and covers a surface of the metal oxide film, is provided.. . ... Nichia Corporation

04/05/18 / #20180098434

Method of manufacturing the printed board

A method of manufacturing a printed board, the method comprising: a first step of preparing a laminate having a base member in which a plurality of layers of glass cloths and a plurality of resin layers are alternately laminated, a first metal layer attached to one surface of the base member, and a second metal layer attached an opposite surface of the base member; a second step of forming a protective layer removable with a predetermined solvent on each of the first metal layer and the second metal layer; and a third step of irradiating the laminate on which the protective layer is formed with a laser beam to thereby form a through-hole penetrating in a thickness direction of the laminate.. . ... Nichia Corporation

04/05/18 / #20180097165

Light emitting device

A light emitting device includes a flexible substrate, a light emitting element, a conductive connecting material, and a holding member. The flexible substrate includes a flexible base and a wire arranged on the flexible base. ... Nichia Corporation

04/05/18 / #20180097164

Printed board, light emitting device, and method for manufacturing same

A method for manufacturing a printed board includes steps of; providing a starting board comprising a base member having a plate-like shape, having an upper surface and a lower surface opposite the upper surface, and having an insulation property, a first metal layer disposed on the upper surface, and a second metal layer disposed on the lower surface; and laser machining a through-hole penetrating the starting board in a thickness direction of the starting board by irradiating a laser beam irradiation area of the starting board with a laser beam from a side of the starting board on which side the first metal layer is disposed. The method further includes a step of etching the second metal layer so as to remove a portion of the second metal layer located in the laser beam irradiation area, prior to the step of laser machining.. ... Nichia Corporation

04/05/18 / #20180097163

Light emitting device

A light emitting device includes a resin molded body, which includes a front surface having an opening, a bottom surface opposite to the opening a front-rear direction of the light emitting device, and first and second wall portions extending from the bottom surface to the front surface. A first lead includes a first bottom portion provided on the bottom surface, first and second side portions provided in the first and second wall portions, respectively. ... Nichia Corporation

04/05/18 / #20180097162

Light emitting device, package for light emitting device, and method for manufacturing light emitting device

A light emitting device includes: a light emitting element; and a light reflective member adapted to reflect light emitted from the light emitting element, the light reflective member comprising a base metal made of a crystallized metal, an amorphous layer located over the base metal and made of an amorphous metal, and an ag-containing layer located over the amorphous layer.. . ... Nichia Corporation

04/05/18 / #20180097161

Light emitting device

A light emitting device includes a light emitting element, a sealing member, and a first film. The light emitting element has a light emitting surface from which a light is emitted. ... Nichia Corporation

04/05/18 / #20180097155

Method for manufacturing light emitting device

A method for manufacturing a light emitting device includes: providing a substrate including a placement region for placing a light emitting element on a top surface; mounting the light emitting element in the placement region; and forming a frame body surrounding the placement region on the substrate. The step of forming the frame body is performed by arranging a first frame body and second frame body on the substrate to surround the placement region. ... Nichia Corporation

04/05/18 / #20180097153

Light emitting device

A light emitting device includes a light emitting element and a wavelength conversion layer covering the light emitting element. The wavelength conversion layer includes first wavelength conversion particles, second wavelength conversion particles, and filling particles. ... Nichia Corporation

04/05/18 / #20180097152

Light emitting device and a manufacturing method of the light emitting device

A method for manufacturing a light emitting device includes: mounting a first light emitting element whose emission peak wavelength is in a range of 430 nm to 490 nm and a second light emitting element whose emission peak wavelength is in a range of 490 nm to 570 nm; and providing a light transmitting member including a red phosphor and at least one of a green phosphor of which a half width of an emission spectrum is not more than 45 nm and a blue phosphor of which a half width of an emission spectrum is not more than 60 nm. The step of providing the light transmitting member includes adding at least one of a predetermined amount of the green phosphor and a predetermined amount of the blue phosphor based on the emission peak wavelength of the second light emitting element.. ... Nichia Corporation

04/05/18 / #20180097151

Light emitting device and display device

A light-emitting device includes a package and at least one light-emitting element. The package includes a front surface defined by a first side and a second side opposite from the first side. ... Nichia Corporation

04/05/18 / #20180097150

Package and light-emitting device

A method of manufacturing a package, the method comprising the steps of: preparing a resin compact having a recess, and including a pair of leads arranged at a bottom surface of the recess, a first resin body forming a lateral wall of the recess, and a second resin body arranged between the pair of leads; forming a reflective film entirely on at least the bottom surface of the recess and an inner surface of the lateral wall of the recess; and removing the reflective film formed on the pair of leads in the recess in the resin compact on which the reflective film has been formed.. . ... Nichia Corporation

04/05/18 / #20180097149

Light emitting element

A light emitting element has semiconductor layers and first and second electrodes disposed. In plan view, the first electrode has a first connecting portion, a first extending portion, and two second extending portions, and the second electrode has a second connecting portion and two third extending portions. ... Nichia Corporation

04/05/18 / #20180097147

Light emitting device, and method for manufacturing thereof

Provided is a light emitting device comprising an optical member provided on a light extracting surface side of a semiconductor light emitting element via a first light transmissive layer, wherein bonding surfaces of the semiconductor light emitting element and the first light transmissive layer are roughened surfaces, bonding surfaces of the first light transmissive layer and the optical member are flat, and the first light transmissive layer and the optical member are directly bonded.. . ... Nichia Corporation

04/05/18 / #20180095285

Light source device

A light source device includes: a laser diode bar comprising a plurality of strips configured to emit light in a wavelength region with a predetermined width; a light guiding part comprising a plurality of cores, each of which corresponds to a respective one of the plurality of strips, and on each of which light emitted from the respective one of the strips is incident; a diffraction grating on which light emitted from the cores is incident; and a resonator mirror on which light emitted from the diffraction grating is incident. The cores are disposed such that light emitted from the cores is incident on a region of the diffraction grating at different angles. ... Nichia Corporation

04/05/18 / #20180095214

Lighting device

Alighting device includes an optical fiber having a first end portion from which a light emitted by a light source is introduced, and a second end portion, the optical fiber allowing the light to pass therethrough while radiating from a side surface of the optical fiber to an outside; a tube having light-transmissivity and covering the side surface of the optical fiber, such that a gap is located between the side surface of the optical fiber and the tube; a light-shielding cylindrical body covering the second end portion of the optical fiber, such that a space is located between the second end portion of the optical fiber and the cylindrical body, at least a portion of the light-shielding cylindrical body being disposed in the tube; and a light conductive part on a side surface of the cylindrical body, the light conductive part allowing light radiated from the second end portion of the optical fiber to be conducted to a portion of the tube at an outside of the cylindrical body in a diametrical direction of the cylindrical body.. . ... Nichia Corporation

04/05/18 / #20180094796

Method for manufacturing linear light emitting device and linear light emitting device

A method for manufacturing a linear light emitting device includes: providing a light transmissive member having a long side and a short side in a plan view; mounting a plurality of light emitting elements on the light transmissive member via a light transmissive adhesive, such that the light emitting elements are arranged in a row along the long side of the light transmissive member; and forming a reflective member that covers the light transmissive adhesive and lateral faces of the light emitting elements. The linear light emitting device has an emission face having a long side and a short side in a plan view, and a length of the short side of the light transmissive member is substantially equal to a length of the short side of the emission face of the linear light emitting device.. ... Nichia Corporation

03/29/18 / #provided is a light emitting device capable of realizing color reproducibility in a broad range. the light emitting device contains a light emitting element having an emission peak wavelength in a range of 430 nm or more and 470 nm or less, a first fluorescent material having a composition represented by formula (i), which has an emission peak wavelength in a range of 510 nm or more and 525 nm or less and has an average particle diameter that is 10.0 μm or more and 30.0 μm or less, and a second fluorescent material having an emission peak wavelength in a range of 620 nm or more and 670 nm or less:

Nichia Corporation

. . ... Nichia Corporation

03/29/18 / #20180090654

Metal-base substrate, semiconductor device and mehthod for manufacturing the same

A method for manufacturing a metal-base substrate includes: preparing a film substrate by forming a wiring layer on a first surface of the film substrate; and sticking a metal plate on a second surface of the film substrate opposite from the first surface, with an adhesive layer being interposed between the metal plate and the film substrate.. . ... Nichia Corporation

03/29/18 / #20180090649

Light-emitting device and method of manufacturing the same

A light-emitting device includes a light-emitting element, a wavelength conversion member, a light-reflective member and a light-distributing member. The wavelength conversion member is arranged on the light-emitting element. ... Nichia Corporation

03/29/18 / #20180090648

Method for manufacturing light emitting device

A method for manufacturing a light emitting device includes: preparing an intermediate body including a plurality of light emitting elements spaced apart from each other, each of the light emitting elements having a pair of electrodes disposed on the same side, and a covering member covering side surfaces of the light emitting elements while a part of a surface of each of the electrodes is exposed from the covering member, the covering member having a recess between adjacent ones of the light emitting elements; forming a metal layer that continuously covers the surface of each of the electrodes of the light emitting elements and an inner surface of the recess of the covering member; and cutting the metal layer and the covering member at the inner surface of the recess.. . ... Nichia Corporation

03/29/18 / #20180090644

Light emitting device and method for manufacturing thereof

A light emitting device includes a resin molding, first and second leads, and a light emitting element. The resin molding includes a front surface defining an opening, and a lower surface adjacent to the front surface. ... Nichia Corporation

03/29/18 / #20180090643

Light emitting element

A light emitting element includes: an n-side semiconductor layer; a p-side semiconductor layer; an active layer comprising a plurality of well layers and a plurality of barrier layers, and being located between the n-side semiconductor layer and the p-side semiconductor layer. The plurality of barrier layers comprises a final barrier layer, which is a layer of the active layer that is closest to the p-side semiconductor layer. ... Nichia Corporation

03/29/18 / #20180090642

Nitride semiconductor device and method for producing the same

A method for producing a nitride semiconductor device. The method comprises providing a substrate made of a material other than a nitride semiconductor. ... Nichia Corporation

03/29/18 / #20180087726

Light emitting device

A light emitting device includes a support member, a semiconductor laser element, a light reflecting member, and a wavelength conversion member. The support member has a base and a cap that includes a light extraction window from which light is extracted upward. ... Nichia Corporation

03/29/18 / #20180086977

Method of producing nitride fluorescent material, and nitride fluorescent material

A method of producing a nitride fluorescent material including a step of first heat-treating a first compound containing at least one alkaline earth metal element selected from the group consisting of ba, sr, ca and mg, a second compound containing at least one element selected from the group consisting of eu, ce, tb and mn, and a si-containing compound, in an atmosphere containing nitrogen to obtain a calcined product of raw materials, and a step of second heat-treating the calcined product of raw materials, a ba-containing compound, a si-containing compound, and optionally a third compound containing at least one element selected from the group consisting of eu, ce, tb and mn, and optionally a fourth compound containing at least one alkaline earth metal element selected from the group consisting of sr, ca and mg, in an atmosphere containing nitrogen to obtain a nitride fluorescent material is provided, wherein the ratio of the charge-in molar amount of ba to the total charge-in molar amount of at least one alkaline earth metal element to be contained in the calcined product of raw materials in the step of obtaining the calcined product of raw materials is smaller than the ratio of the charge-in molar amount of ba to the total charge-in molar amount of at least one alkaline earth metal element to be contained in the nitride fluorescent material in the step of obtaining the nitride fluorescent material.. . ... Nichia Corporation

03/29/18 / #20180086975

Method of producing aluminate fluorescent material, aluminate fluorescent material and light emitting device

Provided are a method of producing an aluminate fluorescent material, an aluminate fluorescent material and a light emitting device. The production method includes heat-treating a mixture prepared by mixing a compound containing at least one alkaline earth metal element selected from the group consisting of ba, sr and ca, a mg-containing compound not acting as a flux, a mn-containing compound, an al-containing compound, a first flux containing at least one alkali metal element selected from the group consisting of na, k, rb and cs, and a mg-containing second flux to give an aluminate fluorescent material.. ... Nichia Corporation

03/29/18 / #20180086950

Electrically conductive adhesive and electrically conductive material

Disclosed is an electrically conductive adhesive containing: (a) a polyether polymer having a backbone comprising a repeating unit of the formula: —r1—o— wherein r1 is a hydrocarbon group having 1 to 10 carbon atoms, and an end group which is a hydrolyzable silyl group, and (b) silver particles. Further disclosed is an electrically conductive material which is a hardened product of the electrically conductive adhesive.. ... Nichia Corporation

03/22/18 / #20180083169

Light emitting device and method of manufacturing light emitting device

A light emitting device includes a package having a recess which includes a bottom surface and an inner peripheral surface around a periphery of the bottom surface. The package includes a first lead to define a first part of the bottom surface, a second lead to define a second part of the bottom surface, and a resin body to provide the inner peripheral surface and a remaining part of the bottom surface. ... Nichia Corporation

03/22/18 / #20180083167

Method of manufacturing light emitting device

A method of manufacturing a light emitting device includes: mounting at least one light emitting element on a support member with a first surface of the light emitting element facing upward; applying an adhesive to the first surface of the light emitting element by holding the support member and dipping the first surface of the light emitting element in the adhesive; and disposing a light-transmissive member on the first surface of the light emitting element via the adhesive.. . ... Nichia Corporation

03/22/18 / #20180083159

Method of manufacturing light emitting element

A method of manufacturing a light emitting element includes: providing a wafer including a substrate and a semiconductor layered body formed at an upper surface of the substrate; irradiating the wafer with laser light by performing first and second patterns of scanning; and separating the substrate from the semiconductor layered body. In the first pattern of scanning, the wafer is irradiated with the laser light outwardly from an inner side of the wafer or inwardly from an outer side of the wafer, so that a region irradiated with the laser light enlarges. ... Nichia Corporation

03/22/18 / #20180080631

Phosphor-containing member and light emitting device containing thereof

A phosphor-containing member includes a base portion made of a diffuse reflective ceramic, and a plurality of phosphor portions each containing a phosphor and made of a ceramic. The plurality of phosphor portions are disposed directly on an upper surface of the base portion and are spaced apart from each other. ... Nichia Corporation

03/22/18 / #20180080625

Light emitting device

A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; a light diffusion plate; a half mirror positioned between the light diffusion plate and the plurality of light sources; and a plurality of diffuse reflectors positioned between the mounting board and the light diffusion plate, and above at least part of each emission face of the plurality of light sources.. . ... Nichia Corporation

03/08/18 / #20180069164

Light emitting apparatus and method for producing the same

A light emitting apparatus includes a mount substrate; two or more light emitting devices mounted on the mount substrate such that adjacent light emitting devices face each other at lateral surfaces thereof; a light transparent member positioned on upper surfaces of the light emitting devices, the light transparent member having a plate shape and being positioned to receive incident light emitted from the light emitting devices; and a covering member. In a plan view, the light transparent member is larger than each of the light emitting devices. ... Nichia Corporation

03/08/18 / #20180069160

Method of manufacturing light emitting device including metal patterns and cut-out section

A light emitting device includes a substrate; a light emitting element mounted on an upper surface of the substrate; a light-reflecting member surrounding lateral surfaces of the light emitting element; and a sealing member disposed over an upper surface of the light emitting element and an upper surface of the light-reflecting member. An outer edge of the upper surface of the light-reflecting member coincides with an outer edge of a lower surface of the sealing member.. ... Nichia Corporation

03/08/18 / #20180069159

Light emitting device

A light emitting device includes a mounting board, a light emitting element, first and second light reflecting members, a light transmissive member and a sealing member. The first light reflecting member surrounds a lateral surface of the light emitting element while a top surface of the light emitting element is exposed from the first light reflecting member. ... Nichia Corporation

03/08/18 / #20180066183

Semiconductor nanoparticles, method of producing semiconductor nanoparticles, and light-emitting device

Provided is a ternary or quaternary semiconductor nanoparticle that enables the band-edge emission and a less toxic composition. A semiconductor nanoparticle is provided that contains ag, in, and s and has an average particle size of 50 nm or less, wherein the ratio of the number of atoms of ag to the total number of atoms of ag and in is 0.320 or more and 0.385 or less, the ratio of the number of atoms of s to the total number of atoms of ag and in is 1.20 or more and 1.45 or less. ... Nichia Corporation

03/01/18 / #20180062036

Light-emitting element comprising a partitioned sapphire substrate

A light-emitting element includes: a sapphire substrate having a c-plane at a main surface thereof; and a semiconductor layer provided at the main surface side of the sapphire substrate. The sapphire substrate includes a first unit including a first region, a second region, and a third region, wherein, when viewed from the main surface side, the three regions together have a shape of a regular hexagon that is evenly divided into the three regions such that each region has a shape of a rhombus; and a plurality of second units disposed to be aligned with each side of the first unit, the second unit having mirror symmetry relative to the first unit. ... Nichia Corporation

03/01/18 / #20180062032

Light emitting device method of manufacture

A method of manufacturing a light emitting device includes preparing a wafer having a sapphire substrate with semiconductor structures, forming a plurality of straight-line cleavage starting portions within the substrate by scanning a laser beam, and cleaving the wafer along the cleavage starting portions to obtain a plurality of light emitting devices each having a hexagonal shape. The forming step includes forming first cleavage starting portions with each first cleavage starting portion separated by a first interval from a common vertex point of three adjacent light emitting devices, forming second cleavage starting portions with each first cleavage starting portion separated by a second interval, which is shorter than the first interval, away from the common vertex point, and forming third cleavage starting portions with each first cleavage starting portion separated by a third interval, which is shorter than the first interval, away from the common vertex point.. ... Nichia Corporation

03/01/18 / #20180062025

Method for manufacturing light emitting element

A method for manufacturing a light emitting element includes: forming a semiconductor structure on a first substrate; providing a second substrate configured to be bonded above a side of the semiconductor structure opposite the first substrate; forming a metal layer above at least one of (i) a side of the semiconductor structure opposite the first substrate, and/or (ii) a side of the second substrate that is to be located closer to the semiconductor structure; bonding the second substrate above the semiconductor structure via a bonding member; removing the first substrate from the semiconductor structure to obtain a bonded body in which the second substrate is bonded above the semiconductor structure; and singulating the bonded body.. . ... Nichia Corporation

03/01/18 / #20180058660

Optical member, light source device, and irradiation system

An optical member includes one or more lens surfaces, each lens surface comprising a curved surface having: a curvature in a first direction, and a curvature in a second direction that is perpendicular to the first direction in an imaginary plane perpendicular to an optical axis of incident light. Each of the one or more lens surfaces has a substantially rectangular planar shape when viewed in an optical axis direction, the substantially rectangular planar shape being defined by two sides substantially parallel to the first direction and two sides substantially parallel to the second direction. ... Nichia Corporation

03/01/18 / #20180058645

Light emitting device

A light emitting device includes: a base; a laser element disposed on an upper face of the base and adapted to laterally emit a laser beam; a phosphor member disposed on the upper face of the base; a first optical member disposed on the upper face of the base, the first optical member comprising an entry-side lateral face through which the laser beam enters during use and an exit-side lateral face through which the laser beam exits during use, and the first optical member being configured to change a traveling direction of the laser beam such that the laser beam transmitted through the first optical member irradiates an upper face of the phosphor member; and a cap comprising: a light shielding member, and a light transmissive member located over the through hole, the laser element, the phosphor member, and the first optical member. The light shielding member includes a protruded portion extending downward to a position that is lower than an upper end of the first optical member so as to face the exit-side lateral face of the first optical member.. ... Nichia Corporation

03/01/18 / #20180058644

Light emitting device

A light emitting device includes a substrate, a plurality of leds arranged in rows and columns above the substrate, and a wavelength converting member above the plurality of leds. The wavelength converting member includes a plurality of fluorescent portions arranged in rows and columns and a lattice-shaped light shielding portion between the plurality of fluorescent portions. ... Nichia Corporation

03/01/18 / #20180058642

Light emitting device

A light emitting device includes a semiconductor laser element configured to emit a first light, a wavelength converting member configured to emit a second light upon being irradiated by the first light, and a support member defining a through-hole allowing an optical path of the first light to pass through. The through-hole is defined by, in order from a light incident side to a light emitting side with respect to the first light, a lower portion with opening width decreasing from the light incident side to the light emitting side, and an upper portion where the wavelength converting member is fixed. ... Nichia Corporation

03/01/18 / #20180057739

Nitride fluorescent material and light emitting device

A nitride fluorescent material containing at least one element selected from the group consisting of ca, sr, ba and mg, at least one element selected from the group consisting of li, na and k, at least one element selected from the group consisting of eu, ce, tb and mn, al and n is provided, wherein when the maximum value of absorbance in 450 cm−1 or more and less than 900 cm−1 is taken as 1 in an ft-ir spectrum, an integrated value z1 of a domain surrounded by a base line a connecting absorbance values at 1,200 cm−1 and 1,600 cm−1 and an absorbance spectrum of 1,200 cm−1 or more and less than 1,600 cm−1 is 4.0 or less, and/or an integrated value z2 of a domain surrounded by a base line b connecting absorbance values at 2,700 cm−1 and 3,680 cm−1 and an absorbance spectrum of 2,700 cm−1 or more and less than 3,680 cm−1 is 5.0 or less.. . ... Nichia Corporation

03/01/18 / #20180057738

Nitride fluorescent material, method of producing nitride fluorescent material and light emitting device

Provided is a method of producing a nitride fluorescent material containing silicon nitride particles containing eu, at least one alkaline earth metal selected from the group consisting of mg, ca, sr, and ba, al, and fluorine in a composition of the silicon nitride particles. The method includes heat treating a raw material mixture containing an eu source, a source of the alkaline earth metal, an al source, an si source, and an alkaline earth metal fluoride containing at least one selected from the group consisting of mg, ca, sr, and ba, wherein a molar content ratio of fluorine atom to al is from 0.02 to 0.3.. ... Nichia Corporation

02/22/18 / #20180053886

Light emitting device

A light emitting device includes a mounting board, a first light emitting element and a second light emitting element. The mounting board includes an insulator which includes a front face and a back face, a pair of front face wiring parts disposed on the front face of the insulator, a connection wiring part disposed on the front face of the insulator and spaced apart from the front face wiring parts, a pair of back face terminals disposed on the back face of the insulator, first interlayer wiring parts penetrating the insulator and electrically connecting the front face wiring parts and the back face terminals, and one or more second interlayer wiring parts embedded in the insulator to be in contact with the connection wiring part, and spaced apart from the back face terminals.. ... Nichia Corporation

02/22/18 / #20180053884

Composite base and method of manufacturing light emitting device

A method of manufacturing a light emitting device includes: providing a light emitting device set that includes a lead frame being plate-like and including pairs of supporting leads each of which pairs consists of a first supporting lead and a second supporting lead, packages respectively supported by the pairs of supporting leads, and light emitting elements respectively mounted on the packages; and removing the packages from the lead frame. The packages each include a resin molded body, the resin molded body includes a first recess open at the first and third outer surfaces, and a second recess open at the second and third outer surfaces. ... Nichia Corporation

02/15/18 / #20180047883

Light emitting element with light transmissive substrate having recess in cross-sectional plane

A light-emitting element includes a light transmissive substrate, a semiconductor layered body, and first and second light reflecting members. The semiconductor layered body is formed on a first main surface of the light transmissive substrate. ... Nichia Corporation

02/15/18 / #20180047874

Nitride semiconductor element and method for manufacturing the same

A nitride semiconductor element includes a sapphire substrate including: a main surface extending in a c-plane of the sapphire substrate, and a plurality of projections disposed at the main surface, the plurality of projections including at least one projection having an elongated shape in a plan view; and a nitride semiconductor layer disposed on the main surface of the sapphire substrate. The at least one projection has an outer edge extending in a longitudinal direction of the elongated shape, the outer edge extending in a direction oriented at an angle in a range of −10° to +10° with respect to an a-plane of the sapphire substrate in the plan view.. ... Nichia Corporation

02/08/18 / #20180040791

Light emitting device

A light emitting device includes a resin package and a light emitting element. The resin package includes a first lead, a second lead, and a molded body molded integrally with the first lead and the second lead. ... Nichia Corporation

02/08/18 / #20180040790

Light emitting device

A light emitting device including a substrate and a conductive member array including a plurality of conductive members arranged on an upper surface of the substrate in a first direction. Each of the plurality of conductive members including a wire-connected portion, one or more coupling portions connected to the wire-connected portion, an element mounting portion connected to said one or more coupling portions, and one or more extending portions connected to the element mounting portion. ... Nichia Corporation

02/08/18 / #20180040776

Light emitting device

A light emitting device includes a substrate, a light emitting element, a light reflecting resin member, a sealing member, an electrically conductive wiring and a lens member. The light reflecting resin member surrounds the light emitting element. ... Nichia Corporation

02/08/18 / #20180040775

Light-emitting device and method for manufacturing light-emitting device

A light-emitting device includes a light-emitting element, a phosphor layer, a reflective film, and a light-transmissive member. The light emitting element emits first light. ... Nichia Corporation

02/08/18 / #20180040595

Composite substrate and light emitting device

The composite substrate includes: a lead frame including one or more pairs of support leads, each of the one or more pairs of support leads including a first support lead and a second support lead; and one or more packages supported by first and second support leads and including a resin molded body. The resin molded body includes: a first outer side surface; a second outer side surface; a third outer side surface; a fourth outer side surface; a front surface; a first recess; a second recess; a third recess disposed at a bottom surface of the first recess; and a fourth recess disposed at a bottom surface of the second recess. ... Nichia Corporation

02/08/18 / #20180040583

Method for manufacturing light emitting device

A method of manufacturing a light emitting device includes: preparing a light-transmissive member including a light reflective sheet that has a through-hole, and a color conversion material layer that is composed of a light-transmissive resin containing a color conversion material and disposed in the through-hole, preparing a light emitting element, fixing the color conversion material layer to the light emitting element, covering a side surface of the light emitting element with a light-reflective member, and cutting the light-reflective member and light-reflective sheet.. . ... Nichia Corporation

02/08/18 / #20180038024

Retainer material, manufacturing method thereof, and gas treatment device using the same

A holding material including: inorganic fibers that include 70 wt % or more of an alumina component an organic binder other than polyacrylamide of which the surface is negatively charged, alumina sol, and polyacrylamide having a weight-average molecular weight of 3,000,000 to 6,000,000, wherein the amount of the alumina sol is 2 to 8 parts by weight relative to 100 parts by weight of the amount of the inorganic fibers, and the amount of the polyacrylamide is 0.01 to 1.0 parts by weight relative to 100 parts by weight of the amount of the inorganic fibers.. . ... Nichia Corporation

02/08/18 / #20180037469

Aluminate fluorescent material and light emitting device

Provided is an aluminate fluorescent material having a composition represented by the formula x1amgbmncaldoa+b+c+1.5d, in which x1 is at least one element selected from the group consisting of ba, sr; and ca, a, b, c, and d satisfy 0.5≦a≦1.0, 0.0≦b<0.4, 0.3≦c≦0.7, 8.5≦d≦13.0, and 9.0≦b+c+d≦14.0.. . ... Nichia Corporation

02/08/18 / #20180036926

Production method for water jacket spacer

A method for producing a water jacket spacer includes using an injection mold that forms a molding space, the molding space producing an integrally molded product that includes at least a first water jacket spacer, a second water jacket spacer, and a bridge, the first water jacket spacer and the second water jacket spacer being provided so that the inner sides thereof are situated opposite to each other, and the bridge linking the inner side or the end of the first water jacket spacer, and the inner side or the end of the second water jacket spacer. The method for producing a water jacket spacer can produce a water jacket spacer having a shape that corresponds to half or part of half of the groove-like coolant passage along the circumferential direction by means of injection molding while preventing the occurrence of an adhesion-to-slide phenomenon when the mold is opened.. ... Nichia Corporation

02/01/18 / #20180033936

Light emitting device

A light emitting device includes a substrate, a light emitting element, a sealing member, a light transmissive member and a heat dissipation terminal. The substrate includes an insulating base material which has a concave portion with an inner curved surface. ... Nichia Corporation

02/01/18 / #20180033934

Light-emitting device

A light-emitting device includes a light-emitting element that includes a layered structure including a semiconductor layer and a pair of electrodes on a first main surface of the layered structure, a light-transmissive member on a second main surface of the layered structure, the second main surface being opposite to the first main surface, a covering member covering lateral surfaces of the light-emitting element and the first main surface of the layered structure except for at least part of the pair of electrodes, a pair of first metal layers on the first main surface of the light-emitting element, the pair of first metal layers covering a surface of the covering member and being respectively connected with the pair of electrodes, and at least one second metal layer separated from the first metal layers.. . ... Nichia Corporation

02/01/18 / #20180033929

Method of manufacturing light emitting device

A method of manufacturing a light emitting device, includes mounting, on a support substrate, an element set that includes a plurality of light emitting elements on an element substrate. A light reflecting member is provided between the element set and the support substrate. ... Nichia Corporation

02/01/18 / #20180033922

Light emitting device and the manufacturing method for same

A light emitting device includes a light emitting element to emit a first light having a first peak wavelength. A second wavelength converting member contains a second phosphor to convert the first light into a third light having a third peak wavelength longer than the first peak wavelength and shorter than a second peak wavelength. ... Nichia Corporation

02/01/18 / #20180033917

Method of forming nanorods and method of manufacturing semiconductor element

A method of forming semiconductor nanorods includes: placing, in a chamber, a masking material and a base comprising a semiconductor, wherein an etching rate of the masking material in a chemical reaction with a reactant gas during dry etching is lower than an etching rate of a semiconductor in a chemical reaction with the reactant gas during dry etching; and performing dry-etching to form a plurality of dot-masks, each having a form of a dot containing the masking material, on a surface of the semiconductor and to remove a portion of the semiconductor exposed from the dot-masks, wherein the dry-etching is performed under a pressure in the chamber in a predetermined range that allows the masking material scattered by the etching to be adhered to a surface of the semiconductor with a predetermined size of the dots and a predetermined density of the dots.. . ... Nichia Corporation

02/01/18 / #20180033823

Light emitting device and display device

A light emitting device includes a first light emitting element, a second light emitting element, a third light emitting element, a fluorescent material, a film, a first lens, a second lens, and a third lens. The first light emitting element is to emit a first light having a peak wavelength in a range from 440 nm to 485 nm. ... Nichia Corporation

02/01/18 / #20180029523

Light-emitting device

A light emitting device includes a light emitting element, a first light transmissive member, a second light transmissive member, and a light reflective member. The first light transmissive member contains a first phosphor. ... Nichia Corporation

01/25/18 / #20180026169

Semiconductor device, base, and method for manufacturing same

A semiconductor device includes a base and a semiconductor element disposed on the base. The base includes: a base member, a reflective film located above the base member, the reflective film containing silver as a major component and containing particles formed of at least one material selected from the group consisting of an oxide, a nitride, and a carbide; and a dielectric multilayered film located above the reflective film.. ... Nichia Corporation

01/25/18 / #20180024006

Method of determining chromaticity rank of light emitting device

A method of determining a chromaticity rank of a light emitting device includes selecting the light emitting device having a chromaticity rank in a region surrounded by four defining points on a 1931 cie chromaticity diagram. A ratio of a distance in a y-direction between, of the four defining points, two defining points furthest from each other in the y-direction to a distance in an x-direction between, of the four defining points, two defining points furthest from each other in the x-direction is 0.5 or less a peak light emission wavelength of the blue light emitting element is in a range of 447 to 452 nm, a peak light emission wavelength of the green light emitting element is in a range of 520 to 541 nm, and a peak light emission wavelength of the red light emitting element is in a range of 630 to 632 nm.. ... Nichia Corporation

01/25/18 / #20180023784

Light emitting device

A light emitting device includes a mounting board on which a plurality of light sources are disposed; a partitioning member surrounding the light sources and including a plurality of walls that include top parts and form a plurality of areas; a diffuser sheet that is provided above the partitioning member and is supported directly or indirectly by at least one of the top parts of the partitioning member; a plurality of first reflectors that are provided directly above the light sources and are positioned on one of an upper surface and a lower surface of the diffuser sheet; and a second reflector that is provided directly above the top parts and is positioned on one of the upper surface and the lower surface of the diffuser sheet.. . ... Nichia Corporation

01/25/18 / #20180023706

Gasket and manufacturing method thereof

A gasket including a sheet part that includes exfoliated clay minerals, wherein the exfoliated clay minerals are irregularly dispersed in the sheet part without being oriented.. . ... Nichia Corporation

01/25/18 / #20180023657

Connector and shielding body

A connector (1) that comprises first and second surfaces (20a) and (30a) disposed opposingly with an interval therebetween, said interval allowing the shielding body 100 to be inserted therein; a pressing member (4) having a through hole (40) and formed so as to be capable of extending and contracting by winding a prescribed wire material spirally around the through hole (40) as center such that a curvature thereof varies continuously around the through hole; and a holding part (31) that is inserted into a hole (103) formed in the shielding body and the through hole (40) and maintains a specific distance between the first and second surfaces (20a, 30a); wherein the pressing member (4a) and (4b) comprises: a first pressing member (4a) disposed between the first surface (20a) and the shielding body (100) such that a small-curvature side thereof in the extension and contraction direction faces the shielding body (100); and a second pressing member (4b) disposed between the second surface (30a) and the shielding body (100) such that a small-curvature side thereof in the extension and contraction direction faces the shielding body (100). Due to such a configuration, vibration from the vibrating body (10) is absorbed and transmission of the vibration to the shielding body (100) can be suppressed.. ... Nichia Corporation

01/25/18 / #20180021889

Method for manufacturing wavelength conversion member having depressed portion and light-emitting device including the same

A wavelength conversion member manufacturing method includes providing a wavelength conversion member having an upper surface, and forming, in the wavelength conversion member, at least one depressed portion having an inclined surface inclined with respect to the upper surface by irradiating the wavelength conversion member with a pulsed laser beam from above. The forming of the at least one depressed portion includes performing a set of scanning more than once at different processing depths in regions overlapping each other in a top view, the set of scanning includes performing scanning with the pulsed laser beam along a first direction more than once at irradiation positions shifted in a second direction perpendicular to the first direction in the top view, and the performing of the scanning includes applying the pulsed laser beam at a fixed processing depth.. ... Nichia Corporation

01/18/18 / #20180019384

Light emitting device and method of manufacturing the same, and display device

A light emitting device includes a light emitting element, a light-transmissive member covering the light emitting element, a fluorescent material contained in the light-transmissive member, and a multilayer film disposed on the light-transmissive member and including alternatively layered two types of films of different refractive indices, in which the two types of films are aggregated nano-particles of tio2 and aggregated nano-particles of sio2.. . ... Nichia Corporation

01/18/18 / #20180019231

Light emitting element and light emitting element array

A light emitting element includes a semiconductor including an active layer, and a planar shape of the light emitting elements including a concave polygon. The planar shape of the concave polygon has interior angles including at least one acute angle.. ... Nichia Corporation

01/18/18 / #20180016195

Foam

A foamed body that is a porous foamed body including inorganic fibers other than asbestos, and having a compressive stress when compressed at normal temperature at a compression ratio of 80% of 0.1 mpa or less and a recovery ratio when compressed at normal temperature at a compression ratio of 80% of 50% or more.. . ... Nichia Corporation

01/11/18 / #20180013045

Method for producing conductive material, conductive material obtained by the method, electronic device containing the conductive material, light-emitting device, and method for producing light-emitting device

An object of the present invention is to provide a method for producing a conductive material that allows a low electric resistance to be generated, and that is obtained by using an inexpensive and stable conductive material composition containing no adhesive. The conductive material can be provided by a producing method that includes the step of sintering a first conductive material composition that contains silver particles having an average particle diameter (median diameter) of 0.1 μm to 15 μm, and a metal oxide, so as to obtain a conductive material. ... Nichia Corporation

01/11/18 / #20180013039

Light emitting device

A light emitting device includes a light emitting element, a frame, a first light-transmissive member, and a second light-transmissive member. The light emitting element includes an element upper surface from which a light is configured to be emitted, an element bottom surface opposite to the element upper surface, and an element lateral surface connecting the element upper surface and the element bottom surface. ... Nichia Corporation

01/11/18 / #20180012875

Light emitting device

There is presented a light emitting device, having plural light emitting elements disposed on a substrate, in which a protection element, such as a zener diode, can be disposed at an appropriate position. The light emitting device includes: a substrate; a light emitting section having plural light emitting elements disposed in a mounting area on the substrate; a positive electrode and negative electrode each having a pad section and wiring section to apply voltage to the light emitting section through the wiring sections; a protection element disposed at one of the positive electrode and negative electrode and electrically connected with the other one electrode; and a light reflecting resin formed on the substrate such as to cover at least the wiring sections and the protection element, wherein the wiring sections are formed along the periphery of the mounting area such that one end portions thereof are adjacent to each other.. ... Nichia Corporation

01/11/18 / #20180009145

Water jacket spacer production method

A resin material is injection-molded using an injection mold in which a resin flow channel is designed so that a plurality of gates are provided along a longitudinal direction at a position corresponding to an inner circumferential surface of a spacer, to obtain a molded product, the spacer having a shape that a plurality of arc-shaped circumferential surfaces are linked through a constricted part. The molded product is cooled in a state in which a runner that is connected to the gates is allowed to remain, and the runner is cut off thereafter. ... Nichia Corporation

01/04/18 / #20180006430

Optical component and its method of manufacture, and light emitting device and its mehtod of manufacture

An optical component includes a support member having a through-hole, a second light-transmissive member disposed inside the through-hole, and having a light incidence face, a light emission face, and an outer peripheral side surface, and at least one functional film selected from a group consisting of a short pass filter, a long pass filter, and a heat dissipation member and disposed on a surface of the second light-transmissive member.. . ... Nichia Corporation

01/04/18 / #20180006205

Optical-semiconductor device and method for manufacturing the same

A method for manufacturing an optical-semiconductor device, including forming a plurality of first and second electrically conductive members that are disposed separately from each other on a support substrate; providing a base member formed from a light blocking resin between the first and second electrically conductive members; mounting an optical-semiconductor element on the first and/or second electrically conductive member; covering the optical-semiconductor element by a sealing member formed from a translucent resin; and obtaining individual optical-semiconductor devices after removing the support substrate.. . ... Nichia Corporation

01/04/18 / #20180006204

Light emitting device and method of manufacturing the light emitting device

A method of manufacturing a light emitting device includes: providing a substantially flat plate-shaped base member which in plan view includes at least one first portion having an upper surface, and a second portion surrounding the at least one first portion and having inner lateral surfaces; mounting at least one light emitting element on the at least one first portion; shifting a relative positional relationship between the at least one first portion and the second portion in an upper-lower direction to form at least one recess defined by an upper surface of the at least one first portion that serves as a bottom surface of the at least one recess and at least portions of the inner lateral surfaces of the second portion that serve as lateral surfaces of the at least one recess; and bonding the at least one first portion and the second portion with each other.. . ... Nichia Corporation

01/04/18 / #20180006201

Light emitting device

A light emitting device includes a flexible substrate, at least one light emitting element, a sealing resin, an adhesion layer and a support member. The flexible substrate includes a flexible base member and a plurality of wiring portions disposed on one surface of the base member. ... Nichia Corporation

01/04/18 / #20180006200

Method for manufacturing light-emitting device

A method for manufacturing a light-emitting device includes: providing first and second substrates each including a plurality of packages, the packages each having a recess and a light-emitting element mounted in the recess; performing potting by supplying a resin member containing particles of a fluorescent material into the recess of each of the packages of the first substrate; spreading the resin member in the recess of each of the packages of the first substrate; measuring a height of an upper surface of the resin member spread in the recess of at least one of the packages of the first substrate; and adjusting a quantity of the resin member to be supplied into the recess of each of the packages of the second substrate depending on the measured height of the upper surface of the resin member.. . ... Nichia Corporation

01/04/18 / #20180006197

Light emitting device and light source

A light emitting device includes at least one light emitting element to emit a first light having a first peak emission wavelength in a range of 420 nm to 480 nm and at least one fluorescent material to convert the first light to a second light having a second fluorescent peak wavelength in a range of 610 nm to 750 nm. The second light has chromaticity existing in an enclosed area in a cie 1931 chromaticity diagram in which chromaticity is defined by x and y coordinates. ... Nichia Corporation

01/04/18 / #20180004040

Light-emitting device and backlight

A light-emitting device includes a package having a recessed portion defined by a bottom surface and lateral walls surrounding the bottom surface, first and second light-emitting elements aligned in the longitudinal direction on the bottom surface, and a wavelength conversion member in the recessed portion, the wavelength conversion member converting light from the first light-emitting element. The first and second light-emitting elements each have a polygonal shape other than a rectangular shape in a front view. ... Nichia Corporation

01/04/18 / #20180003362

Light source device

A light source device includes a substrate having a principal surface, a light-transmitting member arranged over the principal surface of the substrate, and a laser light source arranged on the principal surface of the substrate at a portion in the bottom recess. The light-transmitting member has a lower surface that faces the principal surface of the substrate, an upper surface opposite to the lower surface, and a bottom recess opening downward. ... Nichia Corporation

01/04/18 / #20180003349

Led module

An led module includes a mounting board and led devices. The led devices include at least one first led device and second led devices each including a light emitting diode element, a reflective member disposed lateral to the light emitting diode element, and a light transmissive member disposed above the light emitting diode element. ... Nichia Corporation

01/04/18 / #20180002600

Method of producing nitride fluorescent material

A method of producing a nitride fluorescent material having relatively high light emission intensity is provided. The method of producing a nitride fluorescent material includes preparing a calcined product having a composition containing at least one first element selected from the group consisting of ba, sr, ca, and mg, at least one second element selected from the group consisting of eu, ce, tb, and mn, and si and n, and bringing the calcined product into contact with a fluorine-containing substance at a temperature in a range of −20° c. ... Nichia Corporation

01/04/18 / #20180000016

Light emitting device and plant cultivation method

Provided is a light emitting device that includes a light emitting element having a light emission peak wavelength ranging from 380 nm to 490 nm, and a fluorescent material excited by light from the light emitting element and emitting light having at a light emission peak wavelength ranging from 580 nm or more to less than 680 nm. The light emitting device emits light having a ratio r/b of a photon flux density r to a photon flux density b ranging from 2.0 to 4.0 and a ratio r/fr of the photon flux density r to a photon flux density fr ranging from 0.7 to 13.0, the photon flux density r being in a wavelength range of 620 nm or more and less than 700 nm, the photon flux density b being in a wavelength range of 380 nm or more and 490 nm or less, and the photon flux density fr being in a wavelength range of 700 nm or more and 780 nm or less.. ... Nichia Corporation

12/28/17 / #the present invention provides a positive electrode active material for non-aqueous electrolyte secondary battery comprising:

Nichia Corporation

. . ... Nichia Corporation

12/28/17 / #20170373455

Light emitting device

A light emitting device includes a base member, a laser element, a retaining member, a fluorescent member, and first and second fixing members. The retaining member has a first surface on a laser element side and a second surface not on the laser element side. ... Nichia Corporation

12/28/17 / #20170373234

Method of manufacturing semiconductor device

A method of manufacturing at least one semiconductor device includes: providing a substrate having a flat lower surface, and an upper surface that allows mounting of at least one semiconductor element or an upper surface having at least one semiconductor mounted thereon; providing a work table having a support plate with a flat support surface for placing the substrate, and having a plurality of support pins arranged at a support surface side and configured to move along an up-and-down direction; abutting the lower surface of the substrate upon tip portions of the plurality of support pins to press down so that the lower surface of the substrate abuts upon the support surface of the support plate; and fixing the substrate on the support plate and performing one or more operations on the substrate.. . ... Nichia Corporation

12/28/17 / #20170373225

Method of manufacturing light emitting device

A light emitting device includes a base member; a light emitting element mounted on the base member; a light-transmissive member that covers an upper surface of the light emitting element, and is substantially rectangular in a plan view; and a light reflecting member that covers a lateral surface of the light-transmissive member, the light reflecting member having a substantially rectangular frame shape in a plan view. A width of the light reflecting member is smaller along a short side of the light-transmissive member than along a long side of the light-transmissive member. ... Nichia Corporation

12/28/17 / #20170369751

Curable resin composition, method for producing curable resin composition, and method for measuring surface tackiness of viscoelastic material

Provided is a curable resin composition which can be cured to form a material (cured product) that has low tack properties and resists adhesion of garbage. The present invention provides a curable resin composition comprising polysiloxane (a) having not less than 2 alkenyl groups in the molecule and polysiloxane (b) having not less than 2 hydrosilyl groups in the molecule, wherein (t+q)/d>0.3 and m+d+t+q=1 are satisfied regarding all silicon atoms contained therein, the amount of the hydrosilyl groups with respect to 1 mol of aliphatic carbon-carbon double bonds present therein is 0.9 to 5.0 mol, and a cured product of the curable resin composition exhibits a separation strength of not more than 0.40 n per mm2 in separation load evaluation and/or a total separation load of not more than 0.018 n·mm per mm2.. ... Nichia Corporation

12/21/17 / #20170365757

Light emitting device

A light emitting device includes a resin package including: a first lead and a second lead, each including a top surface and a bottom surface, and a first resin portion located between the first lead and the second lead and extending in a first direction; a first light emitting element and a second light emitting element arrayed on the top surface of the first lead in the first direction, the first light emitting element and the second light emitting element each including at least a first side surface; and an encapsulant located on the top surface of the first lead and covering the first light emitting element and the second light emitting element. The first side surface of the first light emitting element and the first side surface of the second light emitting element partially face each other.. ... Nichia Corporation

12/21/17 / #20170365738

Light emitting element and light emitting device

A light emitting element includes an n-side semiconductor layer, a p-side semiconductor layer, a plurality of holes, a first p-electrode, a second p-electrode and an n-electrode. The n-side semiconductor layer has a hexagonal shape in plan view. ... Nichia Corporation

12/21/17 / #20170363269

Light emitting device and wavelength conversion member

A light emitting device includes a laser light, a wavelength conversion member, a base member and a lid. The wavelength conversion member includes a plurality of projected portions each extending along a first direction on an upper surface side thereof and arranged side by side in a second direction. ... Nichia Corporation

12/14/17 / #20170358725

Method of manufacturing wiring board, method of manufacturing light emitting device using the wiring board, wiring board, and light emitting device using the wiring board

A method of manufacturing a wiring board according to one embodiment of the present disclosure includes: providing at least one first conductive member that serves as part of a wiring; covering the at least one first conductive member with an insulating member that has at least one opening; disposing at least one second conductive member on the opening of the insulating member, the second conductive member serving as part of the wiring; electrically joining the at least one first conductive member and the at least one second conductive member to each other at the opening; and cutting a region including the at least one first conductive member, the insulating member, and the at least one second conductive member, to form an element mounting surface.. . ... Nichia Corporation

12/14/17 / #20170358724

Light emitting device

A light emitting device includes a mounting board including: a base part, and one or more wiring structures, each of which includes one or more first wiring parts, and one or more second wiring parts, in that order, from a base part side, wherein, in a plan view, an area of each of the one or more second wiring parts is smaller than an area of each of the one or more first wiring parts; one or more light emitting elements bonded to the second wiring parts via bonding members; and a reflective member covering at least a portion of the bonding members and at least a portion of the one or more wiring structures. A reflectance of the one or more first wiring parts is higher than a reflectance of the bonding members. ... Nichia Corporation

12/14/17 / #20170358720

Method of producing light transmissive element and method of producing light emitting device

A method of producing a light transmissive element includes providing a holding member including an upper surface and a plurality of holes, each of the plurality of holes having at least one inner lateral surface that is a substantially smooth surface and an opening in the upper surface of the holding member; filling the plurality of holes with a wavelength conversion member containing fluorescent particles and a light transmissive member such that the wavelength conversion member is in contact with the inner lateral surface of each of the plurality of holes; molding the wavelength conversion member; and taking out the wavelength conversion member from the holding member after the molding of the wavelength conversion member.. . ... Nichia Corporation

12/14/17 / #20170355904

Aluminate fluorescent material, light emitting device using the same, and method of producing aluminate fluorescent material

Provided is an aluminate fluorescent material having a high emission intensity and having a composition containing a first element that contains one or more of ba and sr, and a second element that contains mg and mn. In the composition, when a molar ratio of al is 10, a total molar ratio of the first element is a parameter a, a total molar ratio of the second element is a parameter b, a molar ratio of sr is a product of a parameter m and the parameter a, a molar ratio of mn is a product of a parameter n and the parameter b. ... Nichia Corporation

12/07/17 / #20170350302

Water jacket spacer, internal combustion engine, and automobile

A water jacket spacer is provided that ensures that a cylinder bore wall has a uniform temperature. When a contact member that comes in contact with the all surface of a groove-like coolant passage is provided to either or both of the inner wall side and the outer wall side of the water jacket spacer along the longitudinal direction of the water jacket spacer to divide the groove-like coolant passage into an upper part and a lower part, it is possible to separately control the flow rate of the coolant that flows through the upper passage of the groove-like coolant passage, and the flow rate of the coolant that flows through the lower passage of the groove-like coolant passage, and separately adjust the degree of cooling with respect to the upper part and the lower part of the cylinder bore wall.. ... Nichia Corporation

11/30/17 / #20170345986

Light-emitting device

A light-emitting device includes: a resin package including: a first lead, a second lead, and a resin portion, wherein each of the first lead and the second lead has a top surface and a bottom surface and comprises a metal layer formed at least at the top surfaces; a light-emitting element electrically connected to the first lead and the second lead; and a protection element located on a first surface portion of the top surface of the first lead. The first lead includes: a first lateral portion and at least one second lateral portion. ... Nichia Corporation

11/30/17 / #20170345985

Light emitting device

A light emitting device includes an element mounting board including a base, a set of conductive patterns, one or more light emitting elements, and a cover member. The set of conductive patterns includes one or more first conductive layers and one or more second conductive layers made of a different material. ... Nichia Corporation

11/30/17 / #20170345984

Light-emitting device

A light-emitting device includes: a semiconductor laser element; a supporting member located above the semiconductor laser element, the supporting member having a through-hole that allows light emitted from the semiconductor laser element to pass therethrough; a fluorescent member located in the through-hole, the fluorescent member containing a fluorescent material that is excitable by light emitted from the semiconductor laser element so as to emit light having a wavelength different from a wavelength of the light emitted from the semiconductor laser element; and a light-transmissive heat dissipating member including: a base portion, and a projecting portion projecting from the base portion into the through-hole. An upper surface of the projecting portion of the heat dissipating member is bonded to a lower surface of the fluorescent member. ... Nichia Corporation

11/30/17 / #20170345982

Light-emitting device and method for manufacturing the same

A light-emitting device includes a package, a light-emitting element disposed on the package, and a light-transmissive member over the light-emitting element. An upper surface of the light-transmissive member and an upper surface of the package each have a plurality of projections. ... Nichia Corporation

11/30/17 / #20170345978

Light emitting device and method of manufacturing the same

A light emitting device including a light emitting element including an element substrate and semiconductor layers formed thereon, an encapsulating member that covers the sides of the light emitting element and forms a cavity at the upper surface of the light emitting element, and a wavelength-conversion layer in the cavity. The wavelength-conversion layer being capable of converting that converts the wavelength of light emitted by the light emitting element. ... Nichia Corporation

11/30/17 / #20170345976

Light emitting device

A light emitting device includes a light emitting element having a peak emission wavelength of 410 nm to 440nm and a phosphor member. The phosphor member includes a first phosphor having a peak emission wavelength of 430 nm to 500 nm and containing an alkaline-earth phosphate, a second phosphor having a peak emission wavelength of 440 nm to 550 nm and containing at least one of an alkaline-earth aluminate and a silicate containing ca, mg, and cl, a third phosphor having a peak emission wavelength of 500 nm to 600 nm and containing a rare-earth aluminate, a fourth phosphor having a peak emission wavelength of 610 nm to 650 nm and containing a silicon nitride containing al and at least one of sr and ca, and a fifth phosphor having a peak emission wavelength of 650 nm to 670 nm and containing a fluorogermanate.. ... Nichia Corporation

11/30/17 / #20170345974

Light emitting device

A light emitting device includes: a substrate; a light emitting element disposed on the substrate, the light emitting element having an upper surface and a lateral surface; a reflecting layer located on the upper surface of the light emitting element; a first light-transmissive member having a first surface in contact with the lateral surface of the light emitting element, and a second surface that is inclined toward the substrate in a direction outward from the light emitting element; and a second light-transmissive member in contact with the second surface and covering the light emitting element. A refractive index of the first light-transmissive is smaller than a refractive index of the second light-transmissive member.. ... Nichia Corporation

11/30/17 / #20170342939

Dividing component of cooling water channel of water jacket, internal combustion engine, and automobile

A water jacket coolant passage division member includes: a partition member that has a planar shape that conforms to a groove-like coolant passage provided to a cylinder block that is provided to an internal combustion engine; an inner-side rubber member that is provided to an inner side of the partition member, and comes in contact with a cylinder bore-side wall surface of the groove-like coolant passage; and an outer-side rubber member that is provided to an outer side of the partition member, and comes in contact with an outer wall surface of the groove-like coolant passage. An internal combustion engine in which a cylinder bore wall has a uniform temperature can be provided by utilizing the water jacket coolant passage division member.. ... Nichia Corporation

11/30/17 / #20170342322

Fluorescent material having a composition of rare earth aluminum-gallate

Provided is a fluorescent material having a composition of rare earth aluminum-gallate, which radiates light in not only a visible light region but also a near-infrared region and has improved light emission intensity in a near-infrared region. The fluorescent material has a composition of rare earth aluminum-gallate, including at least one rare earth element ln selected from the group consisting of y, gd, sc, lu, and la; at least one element selected from al and ga; ce; and nd. ... Nichia Corporation

11/30/17 / #20170342321

Method of producing beta-sialon fluorescent material

Provided is a method of producing a β-sialon fluorescent material having a high light emission intensity and an excellent light emission luminance. The method includes preparing a calcined product having a composition of β-sialon containing an activating element; grinding the calcined product to obtain a ground product; and heat-treating the ground product to obtain a heat-treated product. ... Nichia Corporation

11/23/17 / #20170338392

Method of manufacturing wiring board, wiring board, and light emitting device using the wiring board

A method of manufacturing a wiring board includes: providing an insulating member that includes a plurality of regions partitioned by partitions provided with openings at each of which adjacent ones of the regions are joined to each other; disposing conductive members respectively in the plurality of regions; and joining adjacent ones of the conductive members through one of the partitions to each other at the opening of the partition.. . ... Nichia Corporation

11/23/17 / #20170335967

Material for gasket

A gasket material to be mounted in a vehicle engine, wherein, on one or both sides of a steel plate, a rubber layer is formed via a coating film including a reaction product of an acid component and a metal or a reaction product of an acid component and a metal compound, and at least one selected from zirconia, alumina and titania.. . ... Nichia Corporation

11/16/17 / #20170331009

Semiconductor element, semiconductor device, and method for manufacturing semiconductor element

A semiconductor light emitting element is provided. The semiconductor light emitting element has a semiconductor stack, an n-side conductor layer, a p-side conductor layer, a dielectric multilayered film, an n-side reflective layer and a p-side reflective layer, disposed in that order. ... Nichia Corporation

11/16/17 / #20170328523

Light emitting device

A light emitting device including a transparent board elongated in a first direction and having a first surface and an opposite second surface. Light emitting elements are arranged in the first direction on the first surface side of the board. ... Nichia Corporation

11/09/17 / #a cathode active material with high durability and a lithium ion secondary battery. the cathode active material is a cathode active material represented by a general formula li(1+a)nixcoymnzwto2 (−0.05≦a≦0.2, x=1−y−z−t, 0≦y<1, 0≦t<1, 0<t≦0.03), wherein the cathode active material satisfies the following formula (1):

Nichia Corporation

. . ... Nichia Corporation

11/09/17 / #20170324092

Method of producing nickel-cobalt composite hydroxide and method of producing positive electrode active material for non-aqueous electrolyte secondary battery

A method of producing a nickel-cobalt composite hydroxide includes: preparing a first solution containing nickel ions and cobalt ions; preparing a second solution containing tungsten ions and having a ph of 10 or more; preparing a third solution containing a complex ion-forming factor; preparing a liquid medium having a ph in a range of 10 to 13.5; supplying the first solution, the second solution, and the third solution separately and simultaneously to the liquid medium to obtain a reacted solution having a ph in a range of 10 to 13.5; and obtaining the nickel-cobalt composite hydroxide containing nickel, cobalt, and tungsten from the reacted solution.. . ... Nichia Corporation

11/09/17 / #20170324013

Light emitting device and adaptive driving beam headlamp system

A light emitting device includes a substrate, a plurality of first wiring members, a plurality of second wiring members and a plurality of light emitting elements. The first wiring members extend in a first direction. ... Nichia Corporation

10/26/17 / #20170309800

Package and light emitting device

A package for mounting a light emitting element includes a pair of lead electrodes and a resin molded body. The pair of lead electrodes are made of metal plates. ... Nichia Corporation

10/26/17 / #20170309789

Light-emitting device and method of manufacturing the same

A method of manufacturing a light emitting device that includes a plurality of light emitting parts is provided. The method includes providing a base member having a plurality of recesses; mounting at least one light-emitting element in each of the plurality of recesses; disposing a light-transmissive layer continuously covering the plurality of recesses; and removing portions of the light-transmissive layer on the lateral wall between adjacent recesses to expose corresponding portions of the lateral wall, to obtain a plurality of light-transmissive members.. ... Nichia Corporation

10/12/17 / #20170294563

Method for manufacturing light-emitting device

The method for manufacturing a light-emitting device includes flip-chip mounting a first light-emitting element and a second light-emitting element on a substrate separately from each other, bonding a first light-transmissive member to the first light-emitting element, the first light-transmissive member having a first lateral surface, and bonding a second light-transmissive member to the second light-emitting element, the second light-transmissive member having a second lateral surface, with the second lateral surface being separated from and facing the first lateral surface, scraping at least one of the first lateral surface and the second lateral surface to expose at least one of a modified first lateral surface and a modified second lateral surface, forming a light-reflective covering member on the substrate to cover the first lateral surface or the modified first lateral surface, and the second lateral surface or the modified second lateral surface, and cutting the substrate and the covering member between the first lateral surface or the modified first lateral surface, and the second lateral surface or the modified second lateral surface.. . ... Nichia Corporation

10/12/17 / #20170294561

Light emitting device

A light emitting device is provided. The light emitting device includes a light emitting element, which emits blue light, and a light transmissive member having a first principal face bonded to the light emitting element and a second principal face opposite the first principal face. ... Nichia Corporation

10/12/17 / #20170294419

Light emitting device

A light emitting device includes a first light emitting element having a first front surface and a first lateral surface, and a second light emitting element having a second front surface and a second lateral surface. A substrate includes a substrate front surface in which an intermediate wiring is provided. ... Nichia Corporation

10/05/17 / #20170288223

Positive electrode active material for nonaqueous electrolyte secondary battery

A positive electrode active material for a nonaqueous electrolyte secondary battery includes particles of a lithium-transition metal composite oxide that contains nickel in the composition thereof and has a layered structure. The particles have an average particle size dsem based on electron microscopic observation in a range of 1 μm to 7 μm in which a ratio d50/dsem of a 50% particle size d50 in volume-based cumulative particle size distribution to the average particle size based on electron microscopic observation is in a range of 1 to 4, and a ratio d90/d10 of a 90% particle size d90 to a 10% particle size d10 in volume-based cumulative particle size distribution is 4 or less.. ... Nichia Corporation

10/05/17 / #20170288222

Method of producing positive electrode active material for nonaqueous electrolyte secondary battery

A method of producing a positive electrode active material for a nonaqueous electrolyte secondary battery, the method includes preparing nickel-containing composite oxide particles having a ratio 1d90/1d10 of a 90% particle size 1d90 to a 10% particle size 1d10 in volume-based cumulative particle size distribution of 3 or less; obtaining a raw material mixture containing the composite oxide particles and a lithium compound and having a ratio of a total number of moles of lithium to a total number of moles of metal elements contained in the composite oxide in a range of 1 to 1.3; subjecting the raw material mixture to a heat treatment to obtain a heat-treated material; subjecting the heat-treated material to a dry-dispersion treatment to obtain a first dispersion; and bringing the first dispersion into contact with a liquid medium to obtain a second dispersion.. . ... Nichia Corporation

10/05/17 / #20170288221

Method of producing positive electrode active material for nonaqueous electrolyte secondary battery

A method of producing a positive electrode active material for a nonaqueous electrolyte secondary battery, the method includes preparing nickel-containing composite oxide particles having a ratio 1d90/1d10 of a 90% particle size 1d90 to a 10% particle size 1d10 in volume-based cumulative particle size distribution is 3 or less; mixing the composite oxide particles and a lithium compound to obtain a first mixture; subjecting the first mixture to a first heat treatment at a first temperature and a second heat treatment at a second temperature higher than the first temperature to obtain a first heat-treated product; and subjecting the first heat-treated material to a dispersion treatment.. . ... Nichia Corporation

10/05/17 / #20170288107

Method of manufacturing light emitting element mounting base member, method of manufacturing light emitting device using the light emitting element mounting base member, light emitting element mounting base member, and light emitting device using the light emitting element mounting base member

A method of manufacturing a light emitting element mounting base member includes: providing a first insulating member in a plate shaped having at least one recess portion or at least one through-hole; disposing in the recess portion or in the through-hole a light blocking resin and a plurality of core members each equipped with a second insulating member having light reflectivity on each surface of a plurality of electrical conductor cores; and exposing at least one of the surface of the electrical conductor cores from the second insulating members by removing each part of at least one of the second insulating members.. . ... Nichia Corporation

10/05/17 / #20170288106

Method of manufacturing light emitting element mounting base member, method of manufacturing light emitting device using the light emitting element mounting base member, light emitting element mounting base member, and light emitting device using the light emitting element mounting base member

A method of manufacturing a light emitting element mounting base member includes: arranging a plurality of core members each including an electrical conductor core and a light-reflecting insulating member provided on a surface of the electrical conductor core; integrally holding the core members with a light blocking resin; and partially removing the insulating members such that at least one surface of the electrical conductor cores is exposed from the light blocking resin.. . ... Nichia Corporation

10/05/17 / #20170288105

Method of manufacturing light emitting element mounting base member, method of manufacturing light emitting device using the light emitting element mounting base member, light emitting element mounting base member, and light emitting device using the light emitting element mounting base member

A method of manufacturing a light emitting element mounting base member includes: arranging a plurality of core members each including an electrical conductor core and a light-reflecting insulating member provided on a surface of the electrical conductor core; cutting the arranged core members to form a base member preparatory body including at least one cut surface on which at least one of the electrical conductor cores and the insulating members are exposed; and insert molding by placing the base member preparatory body in a set of mold, and injecting a light blocking resin composition into the set of mold such that at least one of the electrical conductor cores or at least one metal film formed on at least one of the electrical conductor cores are exposed on at least one outer surface of the light emitting element mounting base member.. . ... Nichia Corporation

10/05/17 / #20170288104

Light emitting device

A light emitting device includes one or more light emitting elements; a first lead on which the one or more light emitting elements are disposed; a second lead electrically connected to the one or more light emitting elements; a resin member supporting the first lead and the second lead, and including one or more projected portions; and a resin frame surrounding the light emitting elements, and covering at least a portion of each of the projected portions.. . ... Nichia Corporation

10/05/17 / #20170288103

Lead frame, package, and light-emitting device, and methods for manufacturing the same

A lead frame includes an electrode, a hanger lead, and an outer frame and is formed integrally with a supporting member supporting the electrode, so that a package having a depression in which a light-emitting element will be mounted is formed. The depression is open on the upper side, its side walls are mainly constituted of the supporting member, and at least a part of its bottom surface includes the electrode. ... Nichia Corporation








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