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Showa Denko K.K. Patents
Assignee:
Showa Denko K.K.
Address:
Tokyo, JP
No. of patents:
1188
Patents:












Patent Number Title Of Patent Date Issued
RE36492 Method for producing cubic boron nitride January 11, 2000
hBN is converted to cBN by keeping it under temperature and pressure conditions within the range of stability of cubic boron nitride, in the presence of a mixture of at least two compounds selected from amides and imides of Li, Ca and Mg, or in its copresence with at least one metal
D655728 Condenser March 13, 2012
8586670 Chloroprene polymer latex and process for producing the same November 19, 2013
A latex of a chloroprene polymer formed from one or more monomers comprising 2-chloro-1,3-butadiene as the main monomer ingredient, characterized in that the solid matter in the polymer latex has a gel content less than 3 mass %, the solid matter in the polymer latex includes a tetra
8582416 Heat-assisted magnetic recording medium and magnetic recording and reading apparatus November 12, 2013
The heat-assisted magnetic recording medium of the present invention has a substrate, an under layer formed on the substrate, and a magnetic layer formed on the under layer, in which the magnetic layer includes an alloy having a L1.sub.0 structure as a principle component, and the under
8580849 Hydrous gel and production process and use of the hydrous gel November 12, 2013
A hydrous gel substantially comprising at least two polymers selected from the group consisting of polyacrylic acid, sodium polyacrylate and partially neutralized polyacrylate, and water, the polymers being crosslinked by containing an aluminum compound, wherein the pH when the hydro
8575280 Thermosetting resin composition, thermosetting resin composition solution, film forming material November 5, 2013
Disclosed is a thermosetting resin composition including; (A) a carboxyl group-containing polyurethane prepared by using (a) a polyisocyanate compound (b) polyol compounds (c) a carboxyl group-containing dihydroxy compound as raw materials, (B) a curing agent, wherein the polyol comp
8299451 Semiconductor light-emitting diode October 30, 2012
A semiconductor light-emitting diode 20 is provided with a silicon single crystal substrate 201, an intervening layer 203 formed of a Group III nitride semiconductor and stacked on the silicon single crystal substrate 201, and a light-emitting part (205, 206, 207) formed with a p-n-junct
8298507 Fine particulate titanium dioxide, and production process and use thereof October 30, 2012
A process for producing a fine particulate titanium dioxide, comprising charging a fine particulate titanium dioxide powder in a resin bag, spraying water droplets having a liquid droplet diameter of 5 to 500 .mu.m to the powder in the bag, and closing the bag for storing the powder
8296931 Method for manufacturing storage medium October 30, 2012
According to an aspect of an embodiment, a method for manufacturing a storage medium includes providing a medium plate member for forming the storage medium and a guide member; and aligning the medium plate member and the guide member so that the medium plate member and the guide member
8293955 Production process for 1,2,3,4-tetrachlorohexafluorobutane and refining process October 23, 2012
The production process for 1,2,3,4-tetrachlorohexafluorobutane of the present invention is characterized in that 1,2,3,4-tetrachlorobutane is reacted with fluorine in the presence of a solvent containing hydrogen fluoride. The 1,2,3,4-tetrachlorobutane may be obtained by chlorination
8293623 Epitaxial SiC single crystal substrate and method of manufacture of epitaxial SiC single crystal October 23, 2012
An epitaxial SiC single crystal substrate including a SiC single crystal wafer whose main surface is a c-plane or a surface that inclines a c-plane with an angle of inclination that is more than 0 degree but less than 10 degrees, and SiC epitaxial film that is formed on the main surf
8287012 Bumper reinforcement for vehicles October 16, 2012
The present invention relates to a bumper reinforcement for vehicles having a fixing portion 11 to be fixed to a vehicle structural member at a part of the bumper reinforcement in a longitudinal direction. The bumper reinforcement is constituted by an integrally molded product obtain
8284520 Magnetic recording medium, method for producing magnetic recording medium, and magnetic recordin October 9, 2012
A magnetic recording medium comprising a magnetic layer having a magnetic recording pattern comprising elevations constituting magnetic recording regions and depressions constituting boundary regions for partitioning the magnetic recording regions, and a continuous protective carbon
8283095 Thiourethane compound and photosensitive resin composition October 9, 2012
It is an object of the present invention to provide a photopolymerization initiator composition having high sensitivity and excellent storage properties, a photosensitive composition containing the photopolymerization initiator composition, and a thiourethane compound preferable for
8279739 Heat-assisted magnetic recording medium and magnetic storage device October 2, 2012
A heat-assisted magnetic recording medium that includes a substrate, underlayers formed on the substrate, and a magnetic layer which is formed on the underlayers and contains either an FePt alloy having an L1.sub.0 structure or a CoPt alloy having an L1.sub.0 structure as a main comp
8279057 Method of detecting presence of subject on bed October 2, 2012
A bed occupancy state detection method includes detecting loads applied to a head side right portion, a head side left portion, a foot side right portion, and a foot side left portion of a bed platform by first to fourth load detecters, respectively, judging whether or not a prescribed
8278350 Agent for skin external use containing salt of ascorbic acid derivative, method for stabilizing October 2, 2012
An agent for skin external use of the invention contains a salt of higher fatty acid ester of ascorbic acid-2-phosphoric acid ester and a polyhydric alcohol. According to the present invention, occurrence of turbidity or precipitation with time can be prevented to enhance stability e
8277560 CVD apparatus and method of cleaning the CVD apparatus October 2, 2012
A CVD apparatus cleaning method that efficiently removes by-product such as SiO.sub.2 or Si.sub.3N.sub.4 adhered to and deposited on surfaces of an inner wall, an electrode, and the like in a reaction chamber at a film forming step. In the cleaning method the discharged cleaning gas amou
8276401 Evaporator October 2, 2012
An evaporator includes a refrigerant inlet header section, a refrigerant outlet header section, and a refrigerant circulation path connecting the two header sections. A refrigerant inlet-outlet member composed of a first plate, a second plate, and an intermediate plate is joined to the
8273683 Active carbon, production method thereof and polarizable electrode September 25, 2012
The present invention relates to an active carbon containing an alkaline earth metal compound inside the particle and having a specific surface area of 10 to 2,000 m.sup.2/g, which is suitable to be used for polarizable electrodes in an electric double layer capacitor. The active car
8273592 Method of manufacturing group-III nitride semiconductor light emitting device, group III nitride September 25, 2012
The object of the present invention is to provide a method of manufacturing a Group-III nitride semiconductor light-emitting device that is highly productive and that enables production of a device having excellent light-emitting properties; a Group-III nitride semiconductor light-em
8270286 Thermally assisted magnetic recording medium and magnetic recording storage September 18, 2012
Disclosed is a thermally assisted magnetic recording medium comprising a substrate, a plurality of underlayers formed on the substrate, and a magnetic layer which is formed on the underlayers and predominantly comprised of an alloy having an L1.sub.0 structure, characterized in that
8269236 Light-emitting diode and fabrication method thereof September 18, 2012
A light-emitting diode (10) has a light-extracting surface and includes a transparent substrate (14), a compound semiconductor layer (13) bonded to the transparent substrate, a light-emitting part (12) contained in the compound semiconductor layer, a light-emitting layer (133) contained
8268650 Process for manufacturing sealed organic electroluminescence devices September 18, 2012
A process for manufacturing sealed organic EL devices includes a step of forming an organic EL layer on a region of an anode-mounted substrate having a substrate and an anode, the region including at least a bonding region in which a sealing member will be bonded and a region which is
8268490 Catalyst layer, membrane electrode assembly and fuel cell September 18, 2012
Catalyst layers include an electrocatalyst having high oxygen reduction activity that is useful as an alternative material to platinum catalysts. Uses of the catalyst layers are also disclosed. A catalyst layer of the invention includes an electrode substrate and an electrocatalyst on th
8268456 Organic light-emitting device using a compound having a carrier transport property and a phospho September 18, 2012
Disclosed is an organic light-emitting device which contains one or more organic layers sandwiched between an anode and a cathode, wherein at least one of the organic layers is a light-emitting layer including a polymer compound (I), the polymer compound (I) containing structural uni
8266782 Method of joining members together September 18, 2012
A joining method for joining a second member to a first which is a tubular member having a plurality of hollow portions partitioned by a partition wall portion is provided. The first member 1 is inserted into an insertion hole 6 formed in the second member 5. A die segment 11a of a d
8263190 Method of producing magnetic recording medium, and magnetic recording and reading device September 11, 2012
The present invention aims to provide a method of producing a magnetic recording medium which is a method of producing a magnetic recording medium having a magnetically-separated magnetic recording pattern, the method including: forming a magnetic layer on a non-magnetic substrate; t
8258541 Gallium nitride-based compound semiconductor light-emitting device September 4, 2012
A gallium nitride-based compound semiconductor light-emitting device including a positive electrode having openings, which is excellent in light extraction efficiency. The gallium nitride-based compound semiconductor light-emitting device includes a substrate; an n-type semiconductor
8258352 Production process for chlorine-containing fluorine-containing compound September 4, 2012
The production process of the present invention for a chlorine-containing fluorine-containing compound is characterized in that a reaction of adding chlorine atoms to a carbon-carbon unsaturated bond of a hydrogen-containing compound having a carbon-carbon unsaturated bond is carried
8258340 Method for producing .beta.-mercapto carboxylic acids September 4, 2012
An object of the present invention is to provide a method for industrially producing .beta.-mercapto carboxylic acids that are useful as synthetic raw materials for medicines and agrochemicals or as additives for polymer compounds from easily available .alpha.,.beta.-unsaturated carb
8257837 Organic light-emitting device September 4, 2012
An organic light-emitting device in which at least one organic layer including a light-emitting layer is sandwiched between an anode and a cathode and a phosphorescent compound in the light-emitting layer emits light. The light-emitting layer contains a polymer compound including a s
8257449 Method for manufacturing niobium solid electrolytic capacitor September 4, 2012
The present invention relates to a method for producing a niobium solid electrolytic capacitor using niobium as an anode body, which comprises a step of chemically converting the anode, wherein the chemical conversion step comprises a first chemical conversion step of forming a chemical
8254082 Capacitor material, production method of the same, and capacitor, wiring board and electronic de August 28, 2012
The capacitor material of the present invention is comprised by laminating a titanium dioxide layer and a titanate compound layer having perovskite crystals.
8252484 Separator for fuel cell having electrically conducting flow path part August 28, 2012
A high-performance separator for a fuel cell is provided that includes an electrically conducting flow path part and an integrated insulating outer circumferential part surrounding the flow path part. The flow path part includes an electrically conducting resin composition including a
8252483 Fuel cell separator having a corrugated electrically conducting flow path August 28, 2012
A lightweight, compact high-performance fuel cell separator is provided with enhanced output density and capable of being stacked without a gas seal member. Embodiments include a separator having a corrugated electrically conducting flow path. A recess and projection are formed on fr
8250736 Method for manufacturing a magnetic recording medium August 28, 2012
A magnetic recording medium which does not easily cause a material containing Fe or Co to corrode is disclosed. The method for manufacturing a magnetic recording medium 122 includes a process of forming a magnetic layer 30 on a non-magnetic substrate 10, a process of forming a recessed
8247094 Perpendicular magnetic recording medium and magnetic recording and reproducing apparatus August 21, 2012
The present invention relates to a perpendicular magnetic recording medium including a nonmagnetic substrate, and at least a soft magnetic layer (SUL), an alignment control layer, a magnetic recording layer and a protective layer formed on the nonmagnetic substrate; wherein the magne
8242217 Epoxy resin curing agent, process for preparing the same, and epoxy resin composition August 14, 2012
It is an object of the present invention to provide an epoxy resin curing agent which has a favorable pot life and good storage stability as a curing agent for epoxy resins and from which an epoxy resin cured product having good water resistance and hardness is obtained through curing. T
8242169 Emulsion composition August 14, 2012
An emulsion composition of the present invention includes (A) a salt of a higher fatty acid ester of ascorbic acid-2-phosphoric acid ester, (B) a polyglycerin fatty acid monoester including polyglycerin having a mean polymerization degree of 8 to 12 and an unsaturated fatty acid residual
8242043 Process for production of supported catalyst for acetic acid production August 14, 2012
A process for production of a supported catalyst that, when used for production of lower aliphatic carboxylic acids from oxygen and lower olefins, improves yields of the lower aliphatic carboxylic acids and minimizes production of carbon dioxide gas (CO.sub.2) by-product compared to
8236103 Group III nitride semiconductor crystal, production method thereof and group III nitride semicon August 7, 2012
A method for producing a Group III nitride semiconductor crystal includes a first step of supplying a Group III raw material and a Group V raw material at a V/III ratio of 0 to 1,000 to form and grow a Group III nitride semiconductor on a heated substrate and a second step of vapor-p
8235099 Heat exchanger August 7, 2012
A heat exchanger used as an evaporator includes a refrigerant inlet header section having a refrigerant inlet at a right end portion, and a plurality of heat exchange tubes connected to the refrigerant inlet header section. The interior of the refrigerant inlet header section is divi
8231433 Polishing method and polishing apparatus July 31, 2012
The polishing method of a disk-shaped substrate for polishing an outer circumference 13 of a disk-shaped substrate using slurry is provided with in this sequence: a first polishing process for polishing the outer circumference 13 using an abrasive-grain inclusion brush 50 made of a r
8227790 Group III nitride semiconductor light-emitting device July 24, 2012
In a Group III nitride semiconductor light-emitting device which includes a substrate (1) and a light-emitting layer (10) having a multiple quantum well structure including a barrier layer (11b, 12b), which is provided on a surface of the substrate and formed of a Group III nitride s
8227359 Method for manufacturing group III nitride semiconductor layer, method for manufacturing group I July 24, 2012
A method for manufacturing a Group III nitride semiconductor layer according to the present invention includes a sputtering step of disposing a substrate and a target containing a Group III element in a chamber, introducing a gas for formation of a plasma in the chamber and forming a
8227284 Group-III nitride compound semiconductor light-emitting device, method of manufacturing group-II July 24, 2012
The present invention provides a group-III nitride compound semiconductor light-emitting device having high productivity and good emission characteristics, a method of manufacturing a group-III nitride compound semiconductor light-emitting device, and a lamp. A method of manufacturin
8222674 Semiconductor device having a group-III nitride superlattice layer on a silicon substrate July 17, 2012
Provided is a semiconductor device containing a silicon single crystal substrate 101, a silicon carbide layer 102 provided on a surface of the substrate, a Group III nitride semiconductor junction layer 103 provided in contact with the silicon carbide layer, and a superlattice-structured
8222317 Wet friction material July 17, 2012
The purpose of the present invention is to provide a wet friction material which has a high coefficient of friction, has reduced overall thickness change, and excellent heat resistance (resistance to heat spots). In order to accomplish the purpose, the present invention provides a we
8221637 Method and apparatus for manufacturing magnetic recording media July 17, 2012
According to one embodiment, a method for manufacturing a magnetic recording medium includes forming patterns having protrusions and recesses of a ferromagnetic material onto a recording track section and a servo section on a substrate, forming a flattening film, a top surface of whi

 
 
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