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National Institute For Materials Science patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "N" | National Institute For Materials Science-related inventors


Superconducting magnet device and method for limiting current decrease in case of abnormality therein

A superconducting magnet device including a superconducting coil formed of a high-temperature superconducting wire, a power supply which supplies current to the superconducting coil, and a protector capable of forming a short-circuit path which short-circuits both ends of the superconducting coil to each other is installed. Current is made to flow from the power supply to the superconducting coil in a superconducting state, and the superconducting coil thereby generates a magnetic field. ... National Institute For Materials Science

Method of producing spherical boron nitride fine particles

A method of producing a spherical boron nitride fine particle includes reacting ammonia with an alkoxide borate at an ammonia/alkoxide borate molar ratio of 1 to 10 in an inert gas stream at 750° c. Or higher within 30 seconds, then applying heat treatment to a reaction product in an atmosphere of ammonia gas or a mixed gas of ammonia gas and an inert gas at 1,000 to 1,600° c. ... National Institute For Materials Science

Monocrystalline magneto resistance element, method for producing the same and method for using same

To provide a key monocrystalline magnetoresistance element necessary for accomplishing mass production and cost reduction for applying a monocrystalline giant magnetoresistance element using a heusler alloy to practical devices. A monocrystalline magnetoresistance element of the present invention includes a silicon substrate 11, a base layer 12 having a b2 structure laminated on the silicon substrate 11, a first non-magnetic layer 13 laminated on the base layer 12 having a b2 structure, and a giant magnetoresistance effect layer 17 having at least one laminate layer including a lower ferromagnetic layer 14, an upper ferromagnetic layer 16, and a second non-magnetic layer 15 disposed between the lower ferromagnetic layer 14 and the upper ferromagnetic layer 16.. ... National Institute For Materials Science

Polyphenylsulfone-based proton conducting polymer electrolyte, proton conducting solid polymer electrolyte membrane, electrode catalyst layer for solid polymer fuel cells, method for producing electrode catalyst layer for solid polymer fuel cells, and fuel cell

The present invention addresses the problem of providing a crosslinked film and a hydrocarbon-based proton conducting solid electrolyte having a proton conductivity equal to that of a perfluorosulfonate ion exchange polymer. Disclosed as a means for solving this problem is a proton conducting polymer electrolyte which is composed of a sulfonated polyphenyl compound having a plurality of repeating units, and wherein two or more (for example, four or six) sulfonic groups are introduced into one repeating unit on average. ... National Institute For Materials Science

Piezoelectric material, method for producing the same, piezoelectric element and combustion pressure sensor

A piezoelectric material for a combustion pressure sensor, a method for producing the piezoelectric material, and a combustion pressure sensor using the piezoelectric material are provided. The piezoelectric material of the present invention includes a single crystal containing ca, ta, an element m (m is al or ga), si, and o, the single crystal has the same crystal structure as the crystal structure of langasite represented by la3ga5sio14, and at least the content of the element m is insufficient for the stoichiometric composition represented by ca3tam3si2o14. ... National Institute For Materials Science

Low friction coating formed of boron-doped zinc oxide thin film and micromachine

Low friction coating of the present invention includes a boron-doped zinc oxide thin film, wherein piezoelectric polarization in a vertical direction perpendicular to a film surface and a lateral direction horizontal to the film surface occurs and a magnitude of the piezoelectric polarization in the vertical direction is within 150 pm and a magnitude of the piezoelectric polarization in the lateral direction is within 100 pm at 90% or more of measurement points. This makes it possible to greatly decrease the friction in a nanometer order.. ... National Institute For Materials Science

Phosphor, production method for same, illumination instrument, and image display device

Provided are a phosphor, a manufacture thereof, and an illuminating device and an image display device using same which has excellent blue excitation characteristics of at least 440 nm and not exceeding 449 nm. The phosphor of the present invention includes an inorganic compound in which an alon crystal, an alon solid solution crystal, or an inorganic crystal having a same crystal structure as alon, includes at least mn and an a element (where the a element is a monovalent metal element) and, if necessary, a d element (where the d element is an element other than mn, the a element, al, o, and n) wherein, upon irradiation of an excitation source, the phosphor emits fluorescence having a peak wavelength in a range of at least 490 nm and not exceeding 550 nm.. ... National Institute For Materials Science

Light-emitting instrument and image display device

Provided are a light-emitting instrument, and an image display device utilizing an alon phosphor and having wide color gamut. The light-emitting instrument includes an emission source emitting light having a wavelength from 410 nm to 470 nm and a phosphor or a light-transmitting body where the phosphor is dispersed, and the phosphor includes an inorganic compound where an alon crystal, an alon solid solution crystal, or an inorganic crystal having a crystal structure identical to alon includes at least mn, an a element(a monovalent metal element) it necessary, a d element (a divalent metal element) if necessary, an e element (a monovalent anion) if necessary, and a g element (one or more elements other than mn, the a, al, o, n, the d, or the e) if necessary, and emits fluorescence having a peak wavelength from 515 nm to 541 nm upon irradiation of an excitation source.. ... National Institute For Materials Science

Magnetoresistive element and magnetic memory device

. . According to one embodiment, a magnetoresistive element includes a first magnetic layer, a second magnetic layer, and a first nonmagnetic layer. The first nonmagnetic layer is provided between the first magnetic layer and the second magnetic layer. ... National Institute For Materials Science

Fiber reinforced polymer matrix composite structure and high pressure container, and method of manufacturing the same

A fiber reinforced polymer matrix composite structure includes a glass fiber layer and a carbon fiber layer in a cured resin. The glass fiber layer and the carbon fiber layer are laminated and present in a thickness direction of the structure. ... National Institute For Materials Science

Molecular weight measurement method and molecular weight measurement apparatus

A sample in a gas state to be measured is forced to impinge on a structure in which a change in a characteristic including a mechanical deformation, an optical change, an electric change and a magnetic change is exerted due to the impingement of a gaseous sample, a gasified liquid sample or solid sample to cause at least one of changes in characteristics including a mechanical deformation, an optical change, an electric change and a magnetic change; and the molecular weight of the sample in a gas state is obtained.. . ... National Institute For Materials Science

Ferritic heat-resistant steel and method for producing the same

The invention provides a ferritic heat-resistant steel whose creep rupture ductility in a long-term region is improved without detrimental to creep strengths. The ferritic heat-resistant steel has a chemical composition comprising, in % by mass, c: 0.03 to 0.15, si: 0 to 0.8, mn: 0.1 to 0.8, cr: 8.0 to 11.5, mo: 0.2 to 1.5, (w: 0.4 to 3.0), v: 0.1 to 0.4, nb: 0.02 to 0.12 n: 0.02 to 0.10 with the balance of iron and inevitable impurities. ... National Institute For Materials Science

Phosphor, method for manufacturing same, and light-emitting device

A flat plate-shaped phosphor member includes a plurality of granular single crystal phosphors, each of which including a yag crystal as a mother crystal, the yag crystal having a composition represented by a formula of y3-x-ygdxceyal5o12-w (0.03≦x≦0.2, 0.003≦y≦0.2, −0.2≦w≦0.2). Reduction of fluorescence intensity of the phosphor is less than 3% when an excitation light wavelength is 460 nm and a temperature is increased from 25° c. ... National Institute For Materials Science

Rare-earth nanocomposite magnet

The invention provides a nanocomposite magnet, which has achieved high coercive force and high residual magnetization. The magnet is a non-ferromagnetic phase that is intercalated between a hard magnetic phase with a rare-earth magnet composition and a soft magnetic phase, wherein the non-ferromagnetic phase reacts with neither the hard nor soft magnetic phase. ... National Institute For Materials Science

01/18/18 / #20180019091

Emitter, electron gun using emitter, electronic apparatus using electron gun, and method of producing emitter

The emitter of the present invention includes a nanowire. The nanowire is formed from a hafnium carbide (hfc) single crystal, and at least an end portion of the hafnium carbide single crystal, from which electrons are to be emitted, is covered with hafnium oxide (hfo2). ... National Institute For Materials Science

01/18/18 / #20180017515

Sensor coated with receptor layer of mixture of base material and particulate material

As a receptor layer, a film of a composite material of a base material such as a polymer and particles that adsorb an analyte is used. When the present invention is applied to a surface stress sensor or the like, the young's modulus of the receptor layer, which significantly affects detection sensitivity, can be preset with a high degree of freedom, by independently selecting particles that adsorb a desired analyte and a base material that disperses said particles therein.. ... National Institute For Materials Science

01/04/18 / #20180003604

Sensor having porous material or particulate material as receptor layer

According to improvement of the receptor layer of various sensors of the type for detecting physical parameters (for example, a surface stress sensor, qcm, and spr), all of high sensitivity, selectivity, and durability are achieved simultaneously. A porous material or a particulate material, e.g., nanoparticles, is used in place of a uniform membrane which has been conventionally used as a receptor layer. ... National Institute For Materials Science

11/30/17 / #20170346006

Resistance change element and method for manufacturing same

The forming voltage of a resistance change element used in a non-volatile memory and the like is decreased, and repetition characteristics are improved. In an element structure in which a metal oxide film 12 is sandwiched between a lower electrode 11 and an upper electrode 14, an island/particle-like region of amorphous aluminum oxide or aluminum oxycarbide 13 is formed on the metal oxide film 12. ... National Institute For Materials Science

11/30/17 / #20170345657

Semiconductor device, method for manufacturing semiconductor device, inverter circuit, driving device, vehicle, and elevator

A semiconductor device according to an embodiment includes a silicon carbide layer, a gate electrode, and a silicon oxide layer disposed between the silicon carbide layer and the gate electrode, a number of single bonds between carbon atoms being larger than that of double bonds between carbon atoms in the silicon oxide layer.. . ... National Institute For Materials Science

11/09/17 / #20170321061

Film-forming composition containing tannic acid derivatives

The invention provides a film-forming composition containing a tannic acid derivative in which hydrogen atoms in at least some of hydroxyl groups of tannic acid are substituted by a chain hydrocarbon group having 3 to 18 carbon atoms. The film-forming composition of the invention can provide a good enough film on a variety of substrate materials, having improved effects on rust prevention or the like.. ... National Institute For Materials Science

11/09/17 / #20170319483

Method for producing porous particle

A method for producing porous particles includes (1) a step of preparing a solution of an amphiphilic substance by dissolving the amphiphilic substance in a mixed solvent capable of being freeze-dried, (2) a step of producing a precipitate containing the amphiphilic substance by cooling the solution obtained in step (1) to a temperature equal to or less than a phase separation temperature of the solution, and thereafter holding the solution at the temperature, and (3) a step of producing porous particles by freeze-drying the solution containing the precipitate obtained in the step (2).. . ... National Institute For Materials Science

09/28/17 / #20170279012

Light-emitting device and display device

A light-emitting device includes a light-emitting element that emits blue light, a mn2+-activated γ-alon green phosphor, and a dispersing material in which the green phosphor is dispersed. The green phosphor has an in-crystal mn concentration of 2.5 wt % or more. ... National Institute For Materials Science

09/14/17 / #20170263932

Method for manufacturing base material powder having carbon nano-coating layer, method for manufacturing mgb2 superconductor using the method, mgb2 superconductor, method for manufacturing positive electrode material for lithium ion battery, lithium ion battery, and method for manufacturing photocatalyst

Provided is a method for manufacturing a base material powder having a carbon nanocoating layer, the method including adding a polycyclic aromatic hydrocarbon to a base material powder, heating the mixture to a temperature that is higher than or equal to the boiling point of the polycyclic aromatic hydrocarbon and is lower than or equal to the relevant boiling point temperature +300° c., and that is higher than or equal to the thermal decomposition temperature of the polycyclic aromatic hydrocarbon, and thereby coating the surface of the base material powder with a layer of carbon having a thickness of 0.1 nm to 10 nm. According to the method, when a source of carbon that covers a base material powder is appropriately selected, the base material powder having the carbon nanocoating layer can be provided, which does not have a possibility of causing inconveniences in the applications of a final manufactured product of the base material powder and exhibits satisfactory productivity of the base material powder, and from which a modified final manufactured product is obtained.. ... National Institute For Materials Science

08/10/17 / #20170229643

Monocrystalline magneto resistance element, method for producing the same and method for using same

To provide a key monocrystalline magnetoresistance element necessary for accomplishing mass production and cost reduction for applying a monocrystalline giant magnetoresistance element using a heusler alloy to practical devices. A monocrystalline magnetoresistance element of the present invention includes a silicon substrate 11, a base layer 12 having a b2 structure laminated on the silicon substrate 11, a first non-magnetic layer 13 laminated on the base layer 12 having a b2 structure, and a giant magnetoresistance effect layer 17 having at least one laminate layer including a lower ferromagnetic layer 14, an upper ferromagnetic layer 16, and a second non-magnetic layer 15 disposed between the lower ferromagnetic layer 14 and the upper ferromagnetic layer 16.. ... National Institute For Materials Science

08/03/17 / #20170221507

Magnetoresistive element, magnetic head using magnetoresistive element, and magnetic playback device

The present invention addresses the problem of providing an element which uses the current-perpendicular-to-plane giant magnetoresistance (cppgmr) effect of a thin film having the three-layer structure of ferromagnetic metal/non-magnetic metal/ferromagnetic metal. The problem is solved by a magnetoresistive element provided with a lower ferromagnetic layer and an upper ferromagnetic layer which contain a heusler alloy, and a spacer layer sandwiched between the lower ferromagnetic layer and the upper ferromagnetic layer, the magnetoresistive element being characterized in that the spacer layer contains an alloy having a bcc structure. ... National Institute For Materials Science

08/03/17 / #20170219746

Electromagnetic wave absorbing/radiating material, method of manufacturing same, and infrared source

The present invention relates to an electromagnetic wave absorbing/radiating material which includes: a conductor; and a plurality of conductor discs disposed in an array above the surface of the conductor or a perforated conductor layer with a plurality of holes defined in an array above the surface of the conductor.. . ... National Institute For Materials Science

07/27/17 / #20170214047

Nano-coating material, method for manufacturing same, coating agent, functional material, and method for manufacturing same

A nano-coating material, capable of being bonded to the surface of a metal or an alloy substrate, the nano-coating material includes a compound having, in a polymer main chain, (a) a first side chain or a terminal, each having a binding group containing a benzene ring having at least one pair of adjacent hydroxyl groups; and (b) a functional second side chain.. . ... National Institute For Materials Science

06/29/17 / #20170186923

Light emitting device

According to one embodiment of the present invention, the light emitting device includes an led element, a side wall which surrounds the led element, a phosphor layer which is fixed to the side wall with an adhesive layer therebetween, and is positioned above the led element, and a metal pad as a heat dissipating member. The side wall includes an insulating base which surrounds the led element and a metal layer which is formed on a side surface at the led element side of the base, and is in contact with the metal pad and the adhesive layer. ... National Institute For Materials Science

06/22/17 / #20170179346

Single crystal phosphor, phosphor-containing member and light-emitting device

A light-emitting device includes a light-emitting element to emit a bluish light, and a yellowish phosphor to absorb the light emitted by the light-emitting element and produce a yellowish fluorescence. The yellowish phosphor comprises a single crystal phosphor comprising a composition represented by a compositional formula (y1-a-bluaceb)3+cal5-co12 (where 0≦a≦0.9994, 0.001≦b≦0.0067, −0.016≦c≦0.315. ... National Institute For Materials Science

06/15/17 / #20170167995

High-speed response/high-sensitivity dryness/wetness responsive sensor

The present invention improves the sensitivity and the responsiveness of a dryness/wetness responsive sensor utilizing a galvanic current, allowing for downsizing of the dryness/wetness responsive sensor. Instead of the conventional structure in which an anode electrode and a cathode electrode are stacked with an intervening insulator, the present invention employs a structure in which both electrodes run in juxtaposition with each other on an insulating substrate in the form of, for example, a comb-shaped electrode as shown in the drawing. ... National Institute For Materials Science

05/18/17 / #20170140784

Underlayer for perpendicularly magnetized film, perpendicularly magnetized film structure, perpendicular mtj element, and perpendicular magnetic recording medium using the same

Disclosed is a perpendicularly magnetized film structure that uses a highly heat resistant underlayer film on which a cubic or tetragonal perpendicularly magnetized film can grow with high quality, the structure comprising any one substrate (5) of a cubic single crystal substrate having a (001) plane, or a substrate having a cubic oriented film that grows to have the (001) plane; an underlayer (6) formed on the substrate (5) from a thin film of a metal having an hcp structure, such as ru or re, in which the [0001] direction of the thin metal film forms an angle in the range of 42° to 54° with respect to the <001> direction or the (001) orientation of the substrate (5); and a perpendicularly magnetized layer (7) located on the metal underlayer (6) and formed from a cubic material selected from the group consisting of a co-based heusler alloy, a cobalt-iron (cofe) alloy having a bcc structure, and the like, as a constituent material, and grown to have the (001) plane.. . ... National Institute For Materials Science

05/11/17 / #20170131193

Apparatus for measuring coefficient of restitution and hardness tester

An apparatus for measuring for measuring coefficient of restitution which is capable of reducing a mass effect and performing tests in free directions, is disclosed. The apparatus for measuring coefficient of restitution includes a holder for holding a spherical indenter, an ejection mechanism configured to eject the indenter held by the holder from the holder to a specimen, a speed measuring unit configured to measure an impact speed that is a speed of the indenter before the indenter impacts against the specimen, and a rebound speed that is a speed of the indenter after the indenter is rebounded from the specimen; and an arithmetic unit configured to calculate a coefficient of restitution that is a ratio of the rebound speed to the impact speed.. ... National Institute For Materials Science

05/11/17 / #20170130999

Magnetic refrigerating device

Magnetic refrigerating device improves refrigerating capacity and efficiency by improving the heat exchanging method between a magnetic material and a heat exchanging fluid and devising a magnetic field applying method. The magnetic refrigerating device comprises: a cylindrical active magnetic regenerator (amr) bed accommodating refrigerant therein; two magnetic materials disposed in the amr bed in the axial direction, configured to be movable in the axial direction of the amr bed, and made of material having a magnetocaloric effect; at least two permanent magnets positioned to face the two magnetic materials; a rotary shaft positioned between the two magnetic materials in the amr bed and positioned between the at least two permanent magnets; and a magnetic rotary movement unit that rotationally moves the permanent magnets about the rotary shaft and that repeatedly moves the permanent magnets and the two magnetic materials closer together and farther apart in association with the rotational movement.. ... National Institute For Materials Science

03/30/17 / #20170092307

Current-perpendicular-to-plane magneto-resistance effect element

The cppgmr element of the present invention has an orientation layer 12 formed on a substrate 11 to texture a heusler alloy into a (100) direction, an underlying layer 13 that is an electrode for magneto-resistance measurement stacked on the orientation layer 12, a lower ferromagnetic layer 14 and an upper ferromagnetic layer 16 each stacked on the underlying layer 13 and made of a heusler alloy, a spacer layer 15 sandwiched between the lower ferromagnetic layers 14 and the upper ferromagnetic layers 16, and a cap layer 17 stacked on the upper ferromagnetic layer 16 for surface-protection. This manner makes it possible to provide, inexpensively, an element using a current-perpendicular-to-plane giant magneto-resistance effect (cppgmr) of a thin film having a trilayered structure of a ferromagnetic metal/a nonmagnetic metal/a ferromagnetic metal, thereby showing excellent performances.. ... National Institute For Materials Science

03/23/17 / #20170084538

Silver diffusion barrier material, silver diffusion barrier, and semiconductor device using the same

By using silicon oxynitride with an oxygen content of 4.2 to 37.5 at % as a material for a barrier layer, adhesiveness similar to that of silicon oxide and an ag diffusion prevention property similar to that of silicon nitride can be realized. In particular, in a semiconductor device in which a plurality of silicon chips is vertically stacked by through-silicon vias, ag is prevented from being diffused into si and adhesiveness to si becomes favorable when an ag/polypyrrole complex is used as a conductive filling material used for the formation of a barrier layer provided on the inner surface of the via.. ... National Institute For Materials Science

03/23/17 / #20170081750

Nickel-based heat-resistant superalloy

Disclosed herein is a nickel-based heat-resistant superalloy produced by a casting and forging method, the nickel-based heat-resistant superalloy comprising 2.0 mass % or more but 25 mass % or less of chromium, 0.2 mass % or more but 7.0 mass % or less of aluminum, 19.5 mass % or more but 55.0 mass % or less of cobalt, [0.17×(mass % of cobalt content—23)+3] mass % or more but [0.17×(mass % of cobalt content—20)+7] mass % or less and 5.1 mass % or more of titanium, and the balance being nickel and inevitable impurities, and being subjected to solution heat treatment at 93% or more but less than 100% of a γ′ solvus temperature.. . ... National Institute For Materials Science

03/02/17 / #20170062668

Light emitting device and image display apparatus

The present invention provides a light emitting device that makes it possible to provide an image display apparatus having a wide color reproduction range. The light emitting device includes a light emitting element that emits blue light; a mn2+-activated γ-alon phosphor that is a green phosphor; and a mn4+-activated phosphor that is a red phosphor. ... National Institute For Materials Science

02/09/17 / #20170037313

Phosphor, light-emitting device, image display device, pigment, and ultraviolet absorber

. . Provided are an oxynitride phosphor comprising a jem crystal as a main component and being characterized by light-emitting properties (light emission color or excitation property, light emission spectrum) that is different from the known jem phosphor, and an application thereof. The phosphor of the present invention comprises the jem crystal activated with eu and represented by mal(si, al)6(o, n)10 (where the m element is one or more elements selected from the group consisting of ca, sr, eu, la, sc, y, and lanthanoid elements; and includes at least eu as well as ca and/or sr).. ... National Institute For Materials Science

01/12/17 / #20170008767

Boron nitride fine particles and production method thereof

A boron nitride fine particle has low major diameter/thickness (aspect) ratio, high purity and high crystallinity, and also has an average particle diameter of 0.05 to 2.0 μm, a graphitization index of 3 or less, and a total oxygen content of 0.20% by mass or less, with an average value of a major diameter/thickness ratio of scaly particles being 6.0 or less. A method of producing a boron nitride fine particle includes introducing ammonia and an alkoxide borate at an ammonia/alkoxide borate molar ratio of 1 to 5 in a reaction vessel in an inert gas atmosphere for heating at 800 to 1,350° c. ... National Institute For Materials Science

01/05/17 / #20170001153

Nanofiltration or reverse osmosis membrane made of hard carbon film, filtering filter, two-layer-bonded-type filtering filter, and methods for manufacturing same

Provided is a nanofiltration (nf) or reverse osmosis (ro) membrane made of a hard carbon film that has oil resistance and can efficiently separate not only ions in water but also dye molecules present in an organic solvent, a filtering filter, a two-layer-bonded-type filtering filter, and methods for manufacturing the same, using a nanofiltration (nf) or reverse osmosis (ro) membrane (10) made of a hard carbon film characterized by being made of a hard carbon film, having a thickness (t10) of from 5 nm to 300 nm, and having a maximum pore diameter of less than 0.86 nm.. . ... National Institute For Materials Science








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