Patents Assigned to Showa Denko K.K.
  • Publication number: 20190366380
    Abstract: Methods for producing a transparent conductive film and transparent conductive pattern having superior in-plane uniformity of resistance, by a printing method of slit coating or roll coating of metal nanowire ink. The methods include applying a metal nanowire ink containing metal nanowires, a binder resin containing more than 50 mol % monomer units derived from N-vinylacetamide, and a solvent, to at least one surface of a transparent resin film and drying to form a transparent conductive layer, the application of the metal nanowire ink to the transparent resin film being application by slit coating or roll coating performed using a transparent resin film and metal nanowire ink with which the advancing angle (?a) of the dynamic contact angle of the metal nanowire ink relative to the transparent resin film satisfies 10.0°<?a?25.0°, and the difference (?a??r) between the advancing angle (?a) and the receding angle (?r) is 10.0° or higher.
    Type: Application
    Filed: January 15, 2018
    Publication date: December 5, 2019
    Applicant: SHOWA DENKO K.K.
    Inventor: Shigeru YAMAKI
  • Patent number: 10494737
    Abstract: The SiC epitaxial wafer-producing apparatus according to the invention includes a mounting plate having a concave accommodation portion, a satellite that is provided in the concave accommodation portion and has an upper surface on which a SiC substrate is placed, and a carbon member that is provided in the concave accommodation portion at a position which is lower than the SiC substrate and does not come into contact with the SiC substrate.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: December 3, 2019
    Assignee: SHOWA DENKO K.K.
    Inventors: Jun Norimatsu, Akira Miyasaka, Yoshiaki Kageshima
  • Publication number: 20190363348
    Abstract: A negative electrode material for a lithium-ion secondary battery including: Composite (A) having Dv50 of 3.0 ?m or more and 20.0 ?m or less; and including: Particles (A1) and (A2) and Carbonaceous material (A3) as defined herein; a first graphite-containing substance (B) having Dv50 of 5.0 ?m or more and 20.0 ?m or less; and a second graphite-containing substance (C) having Dv50 of 1.0 ?m or more and 10.0 ?m or less. The Dv50 of the graphite-containing substance (B) is larger than that of the graphite-containing substance (C) by 4.0 ?m or more. Also disclosed is a negative electrode sheet and a lithium-ion secondary battery including the negative electrode material.
    Type: Application
    Filed: September 8, 2017
    Publication date: November 28, 2019
    Applicants: SHOWA DENKO K.K., UMICORE
    Inventors: Takayuki KURITA, Yasunari OTSUKA, Nobuaki ISHII
  • Publication number: 20190360118
    Abstract: A SiC single crystal composite includes: a central portion positioned at a center in plan view; and an outer circumferential portion surrounding an outer circumference of the central portion, in which crystal planes of the central portion and the outer circumferential portion are inclined to each other or different from each other, a boundary is present between the central portion and the outer circumferential portion, and a direction of a crystal constituting the central portion and a direction of a crystal constituting the outer circumferential portion are different from each other via the boundary.
    Type: Application
    Filed: November 14, 2017
    Publication date: November 28, 2019
    Applicants: SHOWA DENKO K.K., DENSO CORPORATION
    Inventors: Yohei FUJIKAWA, Hideyuki UEHIGASHI
  • Patent number: 10483529
    Abstract: 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 domains that are completely surrounded by the matrix, whereby the percentage of free silicon-based domains is lower than or equal to 4 weight % of the total amount of Si in metallic or oxidized state in the composite powder.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: November 19, 2019
    Assignees: UMICORE, SHOWA DENKO K.K.
    Inventors: Stijn Put, Dirk Van Genechten, Kris Driesen, Jin Hu, Yvan Strauven, Arihiro Muto, Nobuaki Ishii, Masataka Takeuchi
  • Publication number: 20190345287
    Abstract: The present invention relates to (i) a method of producing a conductive polymer, comprising polymerizing at least one of compounds (A1) represented by the formula (1) disclosed in the specification in the presence of a compound (B) having sulfo group; (ii) a method of producing a conductive polymer, comprising polymerizing at least one compound selected from a group consisting of at least one compound (A2) represented by the formula (2); and (iii) a method of producing a conductive polymer, comprising copolymerizing at least one compound (A1) and at least one compound selected from a group consisting of at least one compound (A2). The method of the present invention is a method for producing a one-liquid type conductive polymer in which it is possible to easily adjust the solvent affinity, the solubility, and other such aspects of performance according to the purpose.
    Type: Application
    Filed: September 29, 2017
    Publication date: November 14, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Takeshi KAWAMOTO, Yuka NIIMI
  • Publication number: 20190345631
    Abstract: A shielding member, wherein the shielding member is formed of at least one of structure which has a non-flat plate shape having an inclined surface, and the inclined surface is located on a side of a substrate support part when the shielding member is disposed in a single crystal growth device, wherein the single crystal growth device comprising: a crystal growth container; a source storage part that is positioned at a lower inner part of the crystal growth container; the substrate support part, wherein the support part is disposed above the source storage part and supports a substrate to make the substrate face the source storage part; and a heating device that is disposed on an outer circumference of the crystal growth container, wherein the shielding member is disposed between the source storage part and the substrate support part, and wherein a single crystal of a source is grown on the substrate by sublimating the source from the source storage part.
    Type: Application
    Filed: May 8, 2019
    Publication date: November 14, 2019
    Applicant: SHOWA DENKO K.K.
    Inventor: Yohei FUJIKAWA
  • Publication number: 20190348700
    Abstract: Provided is a redox-flow battery system, etc., for which even when using a high concentration vanadium electrolyte, it is possible to stably obtain high energy density and battery capacity based on that concentration. The present invention is a redox-flow battery system 1 for performing charge and discharge by circulating an electrolyte that contains vanadium as an active material in a battery cell 2, wherein the electrolyte contains a dissolved vanadium compound and a vanadium compound dispersed in particle form, the total of the vanadium concentration of both vanadium compounds is 1.7 mol/L or more, and provided in the circulation route in which the electrolyte solution circulates are particle size adjusting means 16, 26 for adjusting the particle size of the vanadium compound dispersed in particle form to be smaller.
    Type: Application
    Filed: December 25, 2017
    Publication date: November 14, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Tingting ZHOU, Miyuki TOMITA
  • Publication number: 20190341641
    Abstract: A redox flow battery system including: a positive-electrode electrolyte tank (11) in which a positive-electrode electrolyte containing tetravalent and/or pentavalent vanadium is stored; a positive-electrode electrolyte outgoing pipe (13) and positive-electrode electrolyte return pipe (14) for circulating the positive-electrode electrolyte between the positive-electrode electrolyte tank and a battery cell (2); a negative-electrode electrolyte tank (21) in which a negative-electrode electrolyte containing divalent and/or trivalent vanadium is stored; a negative-electrode electrolyte outgoing pipe (23) and a negative-electrode electrolyte return pipe (24) for circulating the negative-electrode electrolyte between the negative-electrode electrolyte tank (21) and the battery cell; a maintenance tank (40) in which a cleaning liquid containing sulfuric acid is stored; and a cleaning liquid outgoing pipe (41) and a cleaning liquid return pipe (42) for circulating the cleaning liquid between the maintenance tank (40)
    Type: Application
    Filed: December 25, 2017
    Publication date: November 7, 2019
    Applicant: SHOWA DENKO K.K.
    Inventor: Miyuki TOMITA
  • Publication number: 20190338444
    Abstract: A shielding member includes a plurality of shielding plates, in which the plurality of shielding plates are arranged without gaps therebetween in a plan view from a crystal installation part, and the shielding member is disposed between a source material accommodation part and the crystal installation part, in an apparatus for growing single crystals, wherein the apparatus includes a container for crystal growth that has the source material accommodation part at an inner bottom part, and has the crystal installation part that faces the source material accommodation part, and includes a heating part that is configured to heat the container for crystal growth, in which a single crystal of the source material is grown on a crystal installed in the crystal installation part by subliming the source material from the source material accommodation part.
    Type: Application
    Filed: April 23, 2019
    Publication date: November 7, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Yoshiteru HOSAKA, Yohei FUJIKAWA
  • Publication number: 20190337919
    Abstract: The present invention relates to a fused heteropolycyclic compound represented by formulae (1) and (2), a method for producing the same, and a method for producing a conductive polymer represented by formulae (3) and (4) in which at least one compound represented by formula (2) is used (the symbols in the formulae are as described in the description). The method of the present invention is a method for producing a sulfo-group-containing polyisothianaphthene capable of reducing the use amount of an oxidant or capable of being polymerized without the use of any oxidant.
    Type: Application
    Filed: September 29, 2017
    Publication date: November 7, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Takeshi KAWAMOTO, Yuka NIIMI
  • Publication number: 20190341642
    Abstract: In a redox flow battery system, a battery cell 2 and electrolyte tanks 14 are disposed to be substantially horizontal to one another; outgoing pipes 15 are disposed so as to connect the bottom portion of the battery cell 2 with the bottom portions of the electrolyte tanks 14; return pipes 16 are disposed so as to connect the upper portion of the battery cell 2 with the upper portions of the electrolyte tanks 14; and electrolyte recovery routes 20 disposed so as to connect the outgoing pipes 15 to the upper portions of the electrolyte tanks 14. The redox flow battery system is further provided with second liquid feeding pumps 21 for recovering electrolytes through the electrolyte recovery routes 20, and second opening/closing means 22 provided to the electrolyte recovery routes 20.
    Type: Application
    Filed: December 25, 2017
    Publication date: November 7, 2019
    Applicant: SHOWA DENKO K.K.
    Inventor: Miyuki TOMITA
  • Publication number: 20190337803
    Abstract: An hBN powder containing an aggregate of primary particles of hBN, the hBN powder having a ratio of an average longer diameter (L1) to an average thickness (d1) of the primary particles, [L1/d1], of 10 to 25, a tap density of 0.80 g/cm3 or more, and a BET specific surface area of less than 5.0 m2/g, in which a particle size distribution curve showing a frequency distribution based on volume of the hBN powder is a bimodal distribution curve having a first peak and a second peak in a range of a particle size of 500 ?m or less and having a peak height ratio of a second peak height (HB) to a first peak height (HA), [(HB)/(HA)], of 0.90 or less, a method for producing the same, and a resin composition and a resin sheet each comprising the hBN powder.
    Type: Application
    Filed: December 21, 2017
    Publication date: November 7, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Yuki OTSUKA, Masaru FUKASAWA
  • Patent number: 10470301
    Abstract: Provided are a conductive pattern manufacturing method and a conductive pattern formed substrate, capable of easily achieving a narrow pitch. A metal nanowire layer 12 is formed on the entirety of a part of at least one of the main faces of a substrate 10, pulsed light is irradiated thereto through a mask 14 provided with a light transmission portion 14a formed in a predetermined pattern, and the metal nanowires in the metal nanowire layer 12 at the region having the above predetermined pattern were sintered, to thereby obtain conductivity at the predetermined patterned region. Accordingly, a substrate provided with a conductive pattern having any selected pattern can be produced by simple steps.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: November 5, 2019
    Assignee: SHOWA DENKO K.K.
    Inventors: Hiroshi Uchida, Kenji Shinozaki, Eri Okazaki, Hideki Ohata, Yasunao Miyamura
  • Publication number: 20190330493
    Abstract: A composition for a protective film for electroconductive patterns, including: (A) a polyurethane containing a carboxyl group; (B) an epoxy compound; (C) a curing accelerator; and (D) a solvent, wherein the percentage of the solvent (D) contained is from 95.0% to 99.9% by mass, and the solvent (D) contains (D1) a solvent containing a hydroxyl group and having a boiling point in excess of 100° C., and (D2) a solvent having a boiling point that does not exceed 100° C., wherein the content of the solvent (D2) having a boiling point that does not exceed 100° C. is 30% to less than 70% by mass of total solvent in total. The composition can be cured by heating at a temperature not exceeding 100° C. for a heating time not exceeding 10 minutes.
    Type: Application
    Filed: November 29, 2017
    Publication date: October 31, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Masahiko TOBA, Eri NAKAZAWA, Shigeru YAMAKI
  • Publication number: 20190330069
    Abstract: Provided is a method for producing boron trichloride capable of efficiently producing boron trichloride by suppressing the generation of byproducts resulting from water by sufficiently removing water from a reaction system. The method for producing boron trichloride includes: a dehydration step of bringing a chlorine-containing gas which contains chlorine gas and has a water content of 1 ppm by volume or less into contact with boron carbide at a temperature lower than a generation starting temperature at which the generation of the boron trichloride starts by the reaction between the boron carbide and the chlorine gas, and allowing water in the boron carbide to react with the chlorine gas in the chlorine-containing gas to remove the water contained in the boron carbide; and a generation step of allowing the boron carbide dehydrated in the dehydration step to react with the chlorine gas to generate boron trichloride.
    Type: Application
    Filed: May 30, 2017
    Publication date: October 31, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Saki MOURI, Hideyuki KURIHARA
  • Publication number: 20190330761
    Abstract: A SiC single crystal growth apparatus of an embodiment includes a seed crystal installation part in which a seed crystal is installable at a position thereof which faces a raw material; a guide member which extends from a periphery of the seed crystal installation part toward the raw material and guides crystal growth performed inside the guide member; and a heat-insulating material which is movable along an extension direction of the guide member on the outside of the guide member.
    Type: Application
    Filed: April 19, 2019
    Publication date: October 31, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Rimpei KINDAICHI, Yoshishige OKUNO, Tomohiro SHONAI
  • Publication number: 20190334193
    Abstract: A current collector plate is disclosed that has an erect positioning pin on at least one surface of the current collector plate.
    Type: Application
    Filed: December 27, 2017
    Publication date: October 31, 2019
    Applicant: SHOWA DENKO K.K.
    Inventor: Miyuki TOMITA
  • Publication number: 20190334192
    Abstract: Disclosed is a method for operating a redox flow battery which has two electrodes including a positive electrode and a negative electrode and a membrane, and performs charge and discharge by supplying a positive electrode electrolyte to the positive electrode and supplying a negative electrode electrolyte to the negative electrode, the method including a step of changing one or both of pressures of the positive electrode electrolyte supplied to the positive electrode and the negative electrode electrolyte supplied to the negative electrode in a cycle of 1/60 to 10 seconds.
    Type: Application
    Filed: December 19, 2017
    Publication date: October 31, 2019
    Applicant: SHOWA DENKO K.K.
    Inventor: Masahiro SUZUKI
  • Publication number: 20190334162
    Abstract: A granular composite material, containing: particles (A) each formed of a substance which contains an element capable of intercalating and deintercalating lithium ions and is free of graphite; particles (B) each formed of a substance which contains graphite; carbon fibers (C); a polymer (D) containing a polysaccharide having an unsubstituted or substituted glucopyranose ring or a derivative thereof; and a solid electrolyte (E) containing a linear or branched polyether or a derivative thereof; a negative electrode obtained by laminating an electrode layer containing the granular composite material on a current collector; a method for producing the negative electrode; and a lithium ion secondary battery containing the negative electrode.
    Type: Application
    Filed: December 6, 2017
    Publication date: October 31, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Takayuki KURITA, Masataka TAKEUCHI, Nobuaki ISHII