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Showa Denko K k
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Showa Denko K k patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "S" | Showa Denko K k-related inventors


 new patent  Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium

(In Formula (3), y represents an integer of 2 to 4, and z represents an integer of 1 to 30).... Showa Denko K k

Carbon material, manufacturing same, and use thereof

which is suitable for a non-aqueous electrolytic secondary battery having a low resistance and a high coulomb efficiency; a method for producing the same; a carbon material for a battery electrode; an electrode; and a lithium-ion secondary battery using the above-described carbon material.... Showa Denko K k

Redox flow battery electrode, and redox flow battery

A redox flow electrode according to one aspect of the present invention is a redox flow battery electrode disposed between an ion exchange membrane and a bipolar plate, wherein the electrode includes a conductive sheet containing carbon nanotubes having an average fiber diameter of 1 μm or less, and a... Showa Denko K k

Sic epitaxial wafer and manufacturing sic epitaxial wafer

An SiC epitaxial wafer having an SiC epitaxial layer formed on an SiC single crystal substrate having an offset angle of 4 degrees or less in a <11-20> direction from a (0001) plane. A trapezoidal defect included in the SiC epitaxial wafer includes an inverted trapezoidal defect in which a... Showa Denko K k

Method for manufacturing graphite powder for negative-electrode material for lithium-ion secondary battery, negative electrode for lithium-ion secondary battery, and lithium-ion secondary battery

A method for manufacturing a graphite powder for a negative electrode material for a lithium-ion secondary battery, which includes a process of pulverizing a graphite precursor, and subjecting a mixture of the pulverized graphite precursor and an alkaline compound to graphitization treatment by heating the mixture at 2,800 to 3,500°... Showa Denko K k

Carbon material, producing same, and use for same

A non-flaky carbon material having specific optical structures, wherein the ratio between the peak intensity I110 of (110) plane and the peak intensity I004 of (004) plane of a graphite crystal determined by the powder XRD measurement, I110/I004, is 0.10 or more and 0.35 or less; an average circularity is... Showa Denko K k

Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium

(in Formula (1), R1 is an aryl group or an aralkyl group, R2 is a divalent linking group having 0 or 1 polar group, R3 is a perfluoropolyether chain, R4 is a divalent linking group having 2 or 3 polar groups, and R5 is an aryl group or an aralkyl... Showa Denko K k

Radical-polymerizable resin composition, curing method thereof, producing same, use of radical-polymerizable resin composition, and use thereof

A radical-polymerizable resin composition comprising one or more metal-containing compounds (A) selected from a metal soap (A1) and a β-diketone skeleton-containing metal complex (A2); one or more thiol compounds (B) selected from a secondary thiol compound (B1) and a tertiary thiol compound (B2); and a radical-polymerizable compound (C) can stably... Showa Denko K k

Magnetic recording medium substrate and hard disk drive

A magnetic recording medium substrate is provided in which a NiP type plating film is formed on a surface of an aluminum alloy substrate that includes Si in a range of 9.5 mass % or more and 11.0 mass % or less, Mn in a rage of 0.45 mass %... Showa Denko K k

Powder, electrode and battery comprising such a powder

Powder comprising particles comprising a matrix material and silicon-based domains dispersed in this matrix material, whereby the matrix material is carbon or a material that can be thermally decomposed to carbon, whereby either part of the silicon-based domains are present in the form of agglomerates of silicon-based domains whereby at... Showa Denko K k

Low-temperature-curable cross-section repair material, and cross-section repairing method using the same

Provided is a low-temperature-curable cross-section repair material which can be cured in a short period of time, even in extremely low temperature environments of −25° C., and which exhibits excellent workability and strength development. Also provided is a cross-section repairing method using the same. The low-temperature-curable cross-section repair material is... Showa Denko K k

Compound, salt of compound, external agent for skin, cosmetic, and food additive

Provided is a compound represented by Formula (1) or a salt thereof (in the formula, R1 and R2 each independently represent a hydrogen atom or a linear or branched acyl group having 11 to 30 carbon atoms, a hydrocarbon group bonded to a carbonyl carbon of the acyl group is... Showa Denko K k

Magnetic recording medium and magnetic memory device

A magnetic recording medium includes a substrate; a lower base layer formed on the substrate; and a (001) oriented L10 magnetic layer formed on the lower base layer and including a first magnetic layer formed on the lower base layer and having a granular structure of magnetic grains and a... Showa Denko K k

Active energy ray-curable composition and use thereof

[Solution] An active energy ray-curable composition containing (A) diallyl 1,4-cyclohexane dicarboxylate, (B) a compound having two or more mercapto groups, and (C) a polymerization initiator.... Showa Denko K k

Thermosetting resin composition

Provided is a thermosetting resin composition which exhibits excellent workability, and which is capable of obtaining, as a result of being cured, a highly reliable cured product (molded article) exhibiting excellent heat resistance and mechanical strength. This thermosetting resin composition includes: a polyalkenyl phenol resin (A); an aromatic polymaleimide compound... Showa Denko K k

Composite powder for use in an anode of a lithium ion battery, preparing such a composite powder and analysing such a composite powder

Composite powder for use in an anode of a lithium ion battery, whereby the particles of the composite powder comprise silicon-based domains in a matrix, whereby the individual silicon-based domains are either free silicon-based domains that are not or not completely embedded in the matrix or are fully embedded silicon-based... Showa Denko K k

Catalyst carrier and producing the same

A catalyst carrier, an electrode catalyst, an electrode including the catalyst, a membrane electrode assembly including the electrode, and a fuel cell including the membrane electrode assembly. The catalyst carrier includes a carbon material having a chain structure including a chain of carbon particles and an alumina-carbon composite particle in... Showa Denko K k

Light control panel and optical imaging device

The present invention provides a light control panel, including a plurality of band-shaped planar light-reflecting portions in each of which layers of a cured product of an allyl ester resin composition, which cured product is excellent in optical characteristics, surface hardness and strength, and metal film layers are alternately laminated... Showa Denko K k

Process for producing polyvalent glycidyl compound

A polyvalent glycidyl compound is produced from a compound having one or more 2-alkenyl ether groups and two or more 2-alkenyl groups using a hydrogen peroxide aqueous solution as an oxidizing agent to oxidize the 2-alkenyl ether groups and the 2-alkenyl groups. A 2-alkenyl ether compound having two or more... Showa Denko K k

Method for manufacturing sic epitaxial wafer and sic epitaxial growth apparatus

A method for manufacturing a SiC epitaxial wafer according to one aspect of the present invention includes separately introducing, into a reaction space for SiC epitaxial growth, a basic N-based gas composed of molecules containing an N atom within the molecular structure but having neither a double bond nor a... Showa Denko K k

Catalyst carrier, producing catalyst carrier, and use of catalyst carrier

A catalyst carrier, an electrode catalyst, an electrode including the catalyst, a membrane electrode assembly including the electrode, a fuel cell including the membrane electrode assembly, and a method for producing the catalyst carrier. The catalyst carrier includes a carbon material having a chain structure including a chain of carbon... Showa Denko K k

Magnetic recording medium and magnetic recording/reproducing apparatus

The present invention relates to a magnetic recording medium in which a lubricant layer contains a compound A represented by general formula (1) and a compound B represented by general formula (2), satisfying (A/B)=0.2 to 3.0, and has an average thickness of 0.8 nm to 2 nm. R1—C6H4OCH2CH(OH)CH2OCH2—R2—CH2OCH2CH(OH)CH2OH . .... Showa Denko K k

Catalyst carrier and producing the same

A catalyst carrier, an electrode catalyst, an electrode including the catalyst, a membrane electrode assembly including the electrode, and a fuel cell including the membrane electrode assembly. The catalyst carrier includes a carbon material having a chain structure including a chain of carbon particles, and an oxide-carbon composite particle in... Showa Denko K k

Curable composition containing semiconductor nanoparticles, cured product, optical material and electronic material

The present invention provides a curable composition containing semiconductor nanoparticles, which contains luminescent semiconductor nanoparticles having good dispersibility and has low viscosity and excellent formability. Al curable composition containing semiconductor nanoparticles, contains: a monofunctional (meth)acrylate compound (a) having a tricyclodecane structure; at least one compound (h) selected from among (meth)acrylate... Showa Denko K k

Wafer support, chemical vapor phase growth device, epitaxial wafer and manufacturing method thereof

Provided is a manufacturing device capable of effectively and sufficiently reducing an edge crown. The wafer support is used in a chemical vapor phase growth device in which an epitaxial film is grown on a main surface of a wafer using a chemical vapor deposition method, the wafer support including:... Showa Denko K k

Method for manufacturing electroconductive paste, and electroconductive paste

A method for producing an electrically conductive paste, including a step of manufacturing paste A by exerting a cavitation effect in mixed liquid A containing multi-walled carbon nanotubes and a solvent, a step of manufacturing paste B from mixed liquid B containing carbon black particles, graphitized carbon nanofibers and a... Showa Denko K k

Electrode current collector, manufacturing the same, electrode, lithium ion secondary battery, redox flow battery, and electric double layer capacitor

An electrode current collector including a metal foil wherein a coating layer is formed on one or both surfaces of the metal foil, and a contact angle with pure water of the surface of the coating layer at a side opposite to the metal foil side is 30° or more.... Showa Denko K k

An agent for improving mitochondrial function

Provided is an agent for improving mitochondrial function including a hydroxycitric acid derivative represented by the following Formula (I) or a salt thereof, as an active ingredient [(In Formula (I), R1 and R2 each independently represent a hydrogen atom or any one group selected from the group represented by the... Showa Denko K k

Moisturizing agent

The present invention provides a moisturizing agent including an inositol derivative as an active ingredient in which saccharide of three or more monosaccharide unit is bonded to per molecule of inositol.... Showa Denko K k

Skin barrier function-improving agent and composition for improving skin barrier function

The present invention provides a skin barrier function-improving agent including an inositol derivative as an active ingredient in which inositol and saccharide are bonded, and a composition for improving a skin barrier function including the above skin barrier function-improving agent and a pharmacologically acceptable carrier.... Showa Denko K k

Forging method and forging device

Provided is a forging method capable of preventing a vibration state from being disturbed during forming. The present invention relates to a forging method in which, when a forging material W1 in a forming hole 12 of a die body 11 is plastically worked by driving a punch 2 into... Showa Denko K k

Method for producing polar group-containing olefin polymer

(in the formula, “Men” represents a menthyl group and “Me” represents a methyl group). The method of the present invention makes it possible to produce a polar group-containing olefin polymer available for various applications, as being a high molecular weight body, which has been difficult to produce, and to produce... Showa Denko K k

Curable heat radiation composition

The present invention relates to a curable heat radiation composition which includes two types of fillers with different compressive breaking strengths (except when the two types of fillers are the same substance) and a thermosetting resin, the compressive breaking strength ratio of the two types of fillers [compressive breaking strength... Showa Denko K k

Unsaturated polyester resin composition and switched reluctance motor

The present invention provides an unsaturated polyester resin composition for producing a molding resin for use in a switched reluctance motor. The unsaturated polyester resin composition comprises an unsaturated polyester, a crosslinking agent, a curing agent, a low profile additive, a filler, and a reinforcing fibrous material. The content of... Showa Denko K k

Method for producing oligosilane

An object of the present invention is to provide a method for producing oligosilane and in particular to provide a method that can efficiently produce oligosilane at lower temperatures and with an improved yield and selectivity. In the dehydrogenative coupling reaction of hydrosilane, oligosilane can be efficiently produced at an... Showa Denko K k

09/21/17 / #20170271090

Film comprising single-layer carbon nanotubes and having dense portions and sparse portions, process for producing same, and material including said film and process for producing same

The present invention provides: a film that comprises single-layer carbon nanotubes having shapes which enable the characteristics thereof to be sufficiently exhibited; and a process for producing the film. The film, which comprises single-layer carbon nanotubes, has portions where single-layer carbon nanotubes are densely present and portions where single-layer carbon... Showa Denko K k

09/14/17 / #20170263233

Structure body, sound absorbing material, sound insulating wall material, and manufacturing structure body

This invention is concerning a structure body containing inorganic particles having an average particle diameter of 6 mm to 50 mm, and 6 parts by mass to 40 parts by mass of a resin with respect to 100 parts by mass of the inorganic particles.... Showa Denko K k

09/14/17 / #20170263277

Recording medium, manufacturing fullerene thin film, recording reproducing apparatus, information recording method, and information reading method

According to the present invention, there is provided a recording medium comprising a substrate, a platinum layer formed on the substrate and having a (111) plane preferentially oriented, and a fullerene single crystal thin film formed on the platinum layer, and configured to be a recording layer, wherein an average... Showa Denko K k

09/14/17 / #20170263384

Tungsten capacitor element and manufacturing same

A capacitor element sequentially including a dielectric layer containing an amorphous tungsten oxide, a layer coating a part or all of the dielectric layer and containing a crystalline tungsten oxide, a semiconductor layer and a conductor layer on a tungsten-containing anode body. The capacitor element is manufactured by a method... Showa Denko K k

09/07/17 / #20170253567

Method for producing fullerene derivative

(in formula (1), C* are each carbon atoms adjacent to each other for forming a fullerene skeleton, A is a linking group having 1-4 carbon atoms for forming a ring structure with two C*, in which a portion thereof may be a substituted or condensed group).... Showa Denko K k

09/07/17 / #20170256791

Negative electrode material for lithium ion secondary cell and manufacturing the same

A negative electrode material for lithium ion secondary batteries, the negative electrode material including particles (A) containing an element capable of occluding/releasing lithium ions other than a carbon element; graphite particles (B) capable of occluding/releasing lithium ions and having a median value of not smaller than 1.4 and not larger... Showa Denko K k

08/17/17 / #20170232508

Method for producing fine tungsten powder

A method for finely powdering tungsten powder, which includes dispersing tungsten powder in an aqueous solution containing an oxidizing agent to form an oxide film in the surface of the tungsten powder and removing the oxide film with an alkaline aqueous solution. Also disclosed is a method for producing fine... Showa Denko K k

08/17/17 / #20170233893

Sic epitaxial wafer and manufacturing the same

A SiC epitaxial wafer including: a SiC epitaxial layer that is formed on a SiC substrate having an off angle, wherein the surface density of triangular defects, in which a distance from a starting point to an opposite side in a horizontal direction is equal to or greater than (a... Showa Denko K k

08/03/17 / #20170221515

Magnetic recording medium and magnetic recording and reproducing apparatus

A magnetic recording medium includes a non-magnetic substrate on which at least a soft magnetic underlayer, an orientation control layer, a perpendicular magnetic layer, and a protective layer are disposed. The perpendicular magnetic layer includes first to fourth magnetic layers. A first exchange coupling control layer is disposed between the... Showa Denko K k

08/03/17 / #20170221697

Method for manufacturing sic epitaxial wafer and sic epitaxial wafer

In order to reduce edge defects efficiently and sufficiently, a method for manufacturing a SiC epitaxial wafer according to the present invention is a method for manufacturing a SiC epitaxial wafer that forms a SiC epitaxial layer on top of a SiC single crystal substrate having an off angle, and... Showa Denko K k

07/20/17 / #20170207427

Adhesive for laminating metal foil to resin film, laminate obtained using said composition, packaging material for battery casing, and battery case

There are provided an adhesive for laminating a metal foil to a resin film and the like, the adhesive comprising: a polyurethane polyol (A); and a saturated aliphatic and/or saturated alicyclic polyisocyanate (B), wherein the polyurethane polyol (A) is obtained by polyaddition of components comprising a chain polyolefin polyol (a1)... Showa Denko K k

07/13/17 / #20170200569

Method for producing solid electrolytic capacitor element

A method for producing a solid electrolytic capacitor element, which includes, in the following order, a sintering step of sintering a valve-acting metal to form an anode body, a chemical conversion step to form a dielectric layer on the surface layer of the anode body, a step of forming a... Showa Denko K k

06/29/17 / #20170186458

Base for magnetic recording medium

A base for a magnetic recording medium includes, a substrate made of an Al alloy, and a film made of a NiP-based alloy and provided on the substrate. The Al alloy of the substrate includes Mg in a range of 0.2 mass % to 6 mass %, Si in a... Showa Denko K k

06/22/17 / #20170178919

Surface machining single crystal sic substrate, manufacturing method thereof, and grinding plate for surface machining single crystal sic substrate

A surface machining method for a single crystal SiC substrate, including: a step of mounting a grinding plate which includes a soft pad and a hard pad sequentially attached onto a base metal having a flat surface, a step of generating an oxidation product by using the grinding plate, and... Showa Denko K k

06/15/17 / #20170169957

Capacitor anode, solid electrolytic capacitor element, solid electrolytic capacitor, and producing capacitor anode

When forming a conductive polymer layer serving as a cathode of a solid electrolytic capacitor, in order to obtain a high capacitance even with a small number of times of polymerization treatments, a capacitor anode according to the present invention includes a tungsten sintered body (2) and is provided with... Showa Denko K k

06/01/17 / #20170155149

Carbon material, manufacturing same, and application of same

A carbon material, being a not-scaly carbon material having specific optical structures, wherein the ratio between the peak intensity I110 of plane (110) and the peak intensity I004 of plane (004) of a graphite crystal determined by the powder XRD measurement, I110/I004, is 0.1 to 0.6; an average circularity is... Showa Denko K k

06/01/17 / #20170155157

Oxygen reduction catalyst

An oxygen reduction catalyst, an ink including the catalyst, a catalyst layer including the catalyst, an electrode having the catalyst layer, a membrane electrode assembly having the catalyst layer, and a fuel cell having the membrane electrode assembly. The oxygen reduction catalyst includes titanium dioxide particles, a carbon material and... Showa Denko K k

05/25/17 / #20170143608

Skin color-improving agent and composition for improving skin color

A tocopherol phosphoric acid ester represented by a following formula (1) (in the formula, R1, R2, and R3 each independently represents a hydrogen atom or a methyl group,), a pharmacologically-acceptable salt thereof, or a solvate thereof for use in the improvement of skin color.... Showa Denko K k

05/18/17 / #20170136438

Fluid flow vessel and photochemical reactor

A fluid flow-through device and a photochemical reactor. The fluid flow-through device (1) includes an outer tube (2) having an outer surface (21) and an inner surface (22); and an inner tube (3) having an outer surface (31) and an inner surface (32), the inner tube being disposed inside the... Showa Denko K k

05/18/17 / #20170136729

Method of producing composite material of aluminum and carbon fibers

A method of producing a composite material of aluminum and a carbon material includes applying a coating liquid containing carbon fibers, a binder, and a solvent for the binder in a mixed state on an aluminum foil to form a coating layer on the aluminum foil, removing the solvent contained... Showa Denko K k

04/20/17 / #20170108474

Mass spectrometry organic acid, analytical column and analytical device

A mass spectrometry method by a liquid chromatograph-mass spectrometer that can detect an organic acid with high sensitivity by retaining, separating and eluting the organic acid without adding any nonvolatile substance to a mobile phase and without receiving any restriction of a ratio of a water-soluble organic solvent, and an... Showa Denko K k

04/06/17 / #20170095998

Heat-shrinkable multilayer film, manufacturing heat-shrinkable multilayer film, and heat-shrinkable label

The present invention provides a heat-shrinkable multilayer film that has excellent wear resistance and that suffers less from static electricity generation and surface stickiness. Also provided are a method for manufacturing the heat-shrinkable multilayer film and a heat-shrinkable label formed using the heat-shrinkable multilayer film. The present invention is directed... Showa Denko K k

03/23/17 / #20170084305

Magnetic recording medium and magnetic recording and reproducing apparatus

HOCH2CF2CF2O(CF2CF2CF2O)sCF2CF2CH2OCH2CH(OH)CH2OH   (3)... Showa Denko K k

03/16/17 / #20170077407

Carbon nanotube array, material, electronic device, process for producing carbon nanotube array, and process for producing field effect transistor

In order to obtain a carbon nanotube array including no m-CNTs through simple steps using a mechanism that is different from thermocapillary flow, there are provided a process for producing a carbon nanotube array including (A) a step of preparing a carbon nanotube array in which m-CNTs and s-CNTs are... Showa Denko K k

02/23/17 / #20170051901

Lighting raising natural lawn grass

A movable lighting apparatus for raising natural lawn grass includes a frame, main support legs supporting the frame, and casters attached to the lower ends of the main support legs. A movable beam is provided such that it can be advanced and retracted relative to the frame in a left-right... Showa Denko K k

02/16/17 / #20170047169

Method for manufacturing tungsten-based capacitor element

The present invention provides a method for producing a capacitor element having good LC characteristics, wherein, after a chemical conversion process to form a dielectric layer on the surface layer of an anode body obtained by forming a powder mainly comprising tungsten, followed by sintering, a semiconductor layer and a... Showa Denko K k

02/09/17 / #20170040610

Negative electrode material for lithium-ion battery, and use therefor

A negative electrode material for a lithium ion battery containing a composite material, the composite material including silicon-containing particles, graphitic carbon material particles, and a carbonaceous carbon material, in which the composite material has a ratio (A/B) of an area (A) of a peak near 100 eV derived from metal... Showa Denko K k

02/02/17 / #20170033367

Electrode catalyst ink composition

An electrode catalyst ink composition which includes metal oxide-based electrode catalyst particles, an electrolyte, and a mixed liquid medium, wherein the mixed liquid medium contains 40 to 85% by mass of water; 5 to 30% by mass of an aqueous solvent (A) that has an evaporation rate of 2.0 or... Showa Denko K k

01/26/17 / #20170025207

Alloy for r-t-b-based rare earth sintered magnet, process of producing alloy for r-t-b-based rare earth sintered magnet, alloy material for r-t-b-based rare earth sintered magnet, r-t-b-based rare earth sintered magnet, process of producing r-t-b-based rare earth sintered magnet, and motor

wherein Dy represents a concentration (at %) of a Dy element, B represents a concentration (at %) of a boron element, and TRE represents a concentration (at %) of all the rare earth elements.... Showa Denko K k

Patent Packs
01/26/17 / #20170025698

Redox flow battery

Provided in the present invention is a redox flow battery including a positive electrode, a negative electrode and a separation membrane, wherein a positive electrode electrolyte composed of an aqueous solution containing vanadium ions is supplied into a positive electrode chamber, and a negative electrode electrolyte composed of an aqueous... Showa Denko K k

01/12/17 / #20170007981

Packing material for liquid chromatography and column for liquid chromatography

A packing material for liquid chromatography, which is excellent in durability, and a column for liquid chromatography, which is filled with the packing material, are provided. The packing material for liquid chromatography is characterized by comprising a hydrophilic resin containing a polyvinyl alcohol resin, to said hydrophilic resin an amino... Showa Denko K k

01/12/17 / #20170011765

Magnetic recording medium and magnetic recording and reproducing apparatus

HOCH2CF2CF2O(CF2CF2CF2O)mCF2CF2CH2OCH2CH(OH)CH2OH   (2)... Showa Denko K k

01/05/17 / #20170004927

Anode body for tungsten capacitors

An anode body for an electrolytic capacitor, prepared by sintering a tungsten powder to obtain a sintered body and subjecting the obtained sintered body to chemical conversion to form a dielectric layer comprising a tungsten trioxide compound on the surface of the sintered body, wherein the ratio of the hydration... Showa Denko K k








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