Patents by Inventor Shinya Komura

Shinya Komura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220359881
    Abstract: The present invention provides an active material layer for an all-solid-state lithium secondary battery including at least an active material, a conductive aid, and a solid electrolyte, in which the active material layer has a gap, a ratio of the conductive aid in the active material layer is 0.1% by mass or more and less than 5.0% by mass, the conductive aid contains fibrous carbon having an average fiber diameter of 10 to 900 nm, and a ratio of the fibrous carbon in the conductive aid is 20% by mass or more.
    Type: Application
    Filed: June 26, 2020
    Publication date: November 10, 2022
    Applicant: Teijin Limited
    Inventors: Kazuki YACHI, Shinya KOMURA, Takahiro DAIDO
  • Patent number: 11394034
    Abstract: A support for a polymer electrolyte fuel cell catalyst satisfying the following requirements (A), (B), (C), and (D), and a producing method thereof, as well as a catalyst layer for a polymer electrolyte fuel cell and a fuel cell: (A) a specific surface area according to a BET analysis of a nitrogen adsorption isotherm is from 450 to 1500 m2/g. (B) a nitrogen adsorption and desorption isotherm forms a hysteresis loop in a range of relative pressure P/P0 of more than 0.47 but not more than 0.90, and a hysteresis loop area ?S0.47-0.9 is from 1 to 35 mL/g; (C) a relative pressure Pclose/P0 at which the hysteresis loop closes is more than 0.47 but not more than 0.70; and (D) a half-width of a G band detected by Raman spectrometry in a range of from 1500 to 1700 cm?1 is from 45 to 75 cm?1.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: July 19, 2022
    Assignee: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Takashi Iijima, Kenichiro Tadokoro, Masataka Hiyoshi, Shinya Furukawa, Tomoko Komura, Kazuhiko Mizuuchi
  • Patent number: 11387458
    Abstract: The present invention provides a carbon fiber aggregate that is characterized by comprising carbon fibers in which crystallite interplanar spacing (d002) measured using X-ray diffraction is 0.3400 nm or more, the average liber diameter being 10-900 nm, and the powder volume resistivity being 4.00×10?2 ?·cm or less when the packing density is 0.8 g/cm3.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: July 12, 2022
    Assignee: TEIJIN LIMITED
    Inventors: Kazuki Yachi, Asami Kanematsu, Shinya Komura, Takahiro Daido
  • Patent number: 11205773
    Abstract: The present invention provides an electrode mixture layer for nonaqueous electrolyte secondary batteries, which contains an electrode active material, a carbon-based conductive agent containing fibrous carbon having an average effective length of 10 ?m, and a binder, and which has a thickness of 50 ?m or more. This electrode mixture layer has an inner layer portion where the fibrous carbon is three-dimensionally dispersed in a random manner.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: December 21, 2021
    Assignee: TEIJIN LIMITED
    Inventors: Kazuki Yachi, Shinya Komura, Ryota Hirakawa, Takahiro Daido, Takashi Shiro
  • Publication number: 20210324545
    Abstract: With the present invention a carbon fiber aggregate is provided that has an average fiber diameter of 100-1000 nm, and a fiber diameter variation coefficient (CV value) greater than 0.5 and less than or equal to 1.0.
    Type: Application
    Filed: August 22, 2019
    Publication date: October 21, 2021
    Applicant: TEIJIN LIMITED
    Inventor: Shinya KOMURA
  • Patent number: 11104834
    Abstract: The present invention provides a heat dissipation sheet comprising fibrous carbon and a polymer, wherein: the fibrous carbon has an average effective fiber length of 5-120 ?m, an average fiber diameter of 200-900 nm, and an average aspect ratio of 30-10,000; and the heat dissipation sheet has a fibrous carbon content of 5-85% by mass with respect to the total amount of the fibrous carbon and the polymer.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: August 31, 2021
    Assignee: TEIJIN LIMITED
    Inventors: Guemju Cha, Shinya Komura, Takahiro Daido
  • Publication number: 20210143427
    Abstract: The present invention provides a carbon fiber aggregate that is characterized by comprising carbon fibers in which crystallite interplanar spacing (d002) measured using X-ray diffraction is 0.3400 nm or more, the average liber diameter being 10-900 nm, and the powder volume resistivity being 4.00×10?2 ?·cm or less when the packing density is 0.8 g/cm3.
    Type: Application
    Filed: February 3, 2017
    Publication date: May 13, 2021
    Applicant: TEIJIN LIMITED
    Inventors: Kazuki YACHI, Asami KANEMATSU, Shinya KOMURA, Takahiro DAIDO
  • Publication number: 20200099055
    Abstract: The purpose of the present invention is to provide an electrode active material layer exhibiting excellent mechanical strength. This electrode material for a non-aqueous electrolyte secondary battery includes at least an electrode active material, a carbon-based conductive auxiliary agent, and a binder. The carbon-based conductive auxiliary agent has a linear structure, and includes ultra-fine fibrous carbon having an average fibre diameter of more than 200 nm but not more than 900 nm. The electrode material configures an electrode active material layer in which the maximum tensile strength (?M) in a planar direction and the tensile strength (?T) in an in-plane direction orthogonal to the maximum tensile strength (?M) satisfy relational expression (a), namely ?M/?T?1.6.
    Type: Application
    Filed: November 26, 2019
    Publication date: March 26, 2020
    Applicant: TEIJIN LIMITED
    Inventors: Kazuki YACHI, Shinya KOMURA, Asami KANEMATSU, Takahiro DAIDO
  • Patent number: 10541417
    Abstract: The purpose of the present invention is to provide an electrode active material layer exhibiting excellent mechanical strength. This electrode material for a non-aqueous electrolyte secondary battery includes at least an electrode active material, a carbon-based conductive auxiliary agent, and a binder. The carbon-based conductive auxiliary agent has a linear structure, and includes ultra-fine fibrous carbon having an average fibre diameter of more than 200 nm but not more than 900 nm. The electrode material configures an electrode active material layer in which the maximum tensile strength (?M) in a planar direction and the tensile strength (?T) in an in-plane direction orthogonal to the maximum tensile strength (?M) satisfy relational expression (a), namely ?M/?T?1.6.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: January 21, 2020
    Assignee: TEIJIN LIMITED
    Inventors: Kazuki Yachi, Shinya Komura, Asami Kanematsu, Takahiro Daido
  • Publication number: 20190300771
    Abstract: The present invention provides a heat dissipation sheet comprising fibrous carbon and a polymer, wherein: the fibrous carbon has an average effective fiber length of 5-120 ?m, an average fiber diameter of 200-900 nm, and an average aspect ratio of 30-10,000; and the heat dissipation sheet has a fibrous carbon content of 5-85% by mass with respect to the total amount of the fibrous carbon and the polymer.
    Type: Application
    Filed: September 28, 2016
    Publication date: October 3, 2019
    Applicant: TEIJIN LIMITED
    Inventors: Guemju CHA, Shinya KOMURA, Takahiro DAIDO
  • Patent number: 10199561
    Abstract: An electroconductive film for an actuator is formed from a gel composition including carbon nanofibers, an ionic liquid, and a polymer. The carbon nanofibers are produced with an aromatic mesophase pitch by melt spinning.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: February 5, 2019
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY, ALPS ELECTRIC CO., LTD.
    Inventors: Kinji Asaka, Takushi Sugino, Soshi Shiraishi, Isao Takahashi, Tomomasa Takatsuka, Shinya Komura
  • Publication number: 20180175391
    Abstract: The present invention provides: a fibrous carbon characterized in that the average effective fiber length is 1-100 ?m, and the crystallite length (La) measured using X-ray diffraction is 100-500 nm; an electrode mixture layer for a non-aqueous-electrolyte secondary cell, said mixture comprising an electrode active material and a carbon-based electroconductive auxiliary agent containing said fibrous carbon; an electrode for a non-aqueous-electrolyte secondary cell, the electrode comprising a collector and said electrode mixture layer for a non-aqueous-electrolyte secondary cell, the electrode mixture layer being laminated on the collector; and a non-aqueous-electrolyte secondary cell having said electrode for a non-aqueous-electrolyte secondary cell.
    Type: Application
    Filed: June 16, 2016
    Publication date: June 21, 2018
    Applicant: TEIJIN LIMITED
    Inventors: Shinya KOMURA, Ryota HIRAKAWA, Kazuki YACHI, Asami KANEMATSU, Takahiro DAIDO
  • Patent number: 9966525
    Abstract: An electroconductive film for an actuator is formed from a gel composition including carbon nanofibers, an ionic liquid, and a polymer. The carbon nanofibers are produced with an aromatic mesophase pitch by melt spinning.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: May 8, 2018
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY, ALPS ELECTRIC CO., LTD.
    Inventors: Kinji Asaka, Takushi Sugino, Soshi Shiraishi, Isao Takahashi, Tomomasa Takatsuka, Shinya Komura
  • Publication number: 20170098822
    Abstract: The present invention provides an electrode mixture layer for nonaqueous electrolyte secondary batteries, which contains an electrode active material, a carbon-based conductive agent containing fibrous carbon having an average effective length of 10 ?m, and a binder, and which has a thickness of 50 ?m or more. This electrode mixture layer has an inner layer portion where the fibrous carbon is three-dimensionally dispersed in a random manner.
    Type: Application
    Filed: March 26, 2015
    Publication date: April 6, 2017
    Applicant: TEIJIN LIMITED
    Inventors: Kazuki YACHI, Shinya KOMURA, Ryota HIRAKAWA, Takahiro DAIDO, Takashi SHIRO
  • Publication number: 20160240770
    Abstract: An electroconductive film for an actuator is formed from a gel composition including carbon nanofibers, an ionic liquid, and a polymer. The carbon nanofibers are produced with an aromatic mesophase pitch by melt spinning.
    Type: Application
    Filed: March 22, 2016
    Publication date: August 18, 2016
    Applicants: National Institute of Advanced Industrial Science and Technology, NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY, ALPS ELECTRIC CO., LTD.
    Inventors: Kinji Asaka, Takushi Sugino, Soshi Shiraishi, Isao Takahashi, Tomomasa Takatsuka, Shinya Komura
  • Patent number: 9376765
    Abstract: A carbon fiber having a lattice spacing (d002) of 0.336 nm to 0.338 nm and a crystallite size (Lc002) of 50 nm to 150 nm as measured and evaluated by X-ray diffraction and a fiber diameter of 10 nm to 500 nm, the carbon fiber having no branched structure.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: June 28, 2016
    Assignees: TEIJIN LIMITED, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Shinya Komura, Takanori Miyoshi, Mitsunao Kakuta, Eiichi Yasuda
  • Publication number: 20150372309
    Abstract: The purpose of the present invention is to provide an electrode active material layer exhibiting excellent mechanical strength. This electrode material for a non-aqueous electrolyte secondary battery includes at least an electrode active material, a carbon-based conductive auxiliary agent, and a binder. The carbon-based conductive auxiliary agent has a linear structure, and includes ultra-fine fibrous carbon having an average fibre diameter of more than 200 nm but not more than 900 nm. The electrode material configures an electrode active material layer in which the maximum tensile strength (?M) in a planar direction and the tensile strength (?T) in an in-plane direction orthogonal to the maximum tensile strength (?M) satisfy relational expression (a), namely ?M/?T?1.6.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 24, 2015
    Applicant: TEIJIN LIMITED
    Inventors: Kazuki YACHI, Shinya KOMURA, Asami KANEMATSU, Takahiro DAIDO
  • Patent number: 8835755
    Abstract: A laminated film comprising a porous semiconductor layer, a transparent conductive layer and a transparent plastic film, wherein the porous semiconductor layer comprises crystalline titanium oxide fibers and crystalline titanium oxide fine particles, the crystalline titanium oxide fibers and the crystalline titanium oxide fine particles are substantially composed of an anatase phase and a rutile phase, the anatase phase content ratio calculated from the integral intensity ratio of X-ray diffraction is between 1.00 and 0.32, and the laminated film is used in an electrode for dye-sensitized solar cells, and the electrode and a dye-sensitized solar cell comprising the same.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: September 16, 2014
    Assignees: Teijin Dupont Films Japan Limited, Teijin Limited
    Inventors: Rei Nishio, Koji Kubo, Shinya Komura, Takanori Miyoshi
  • Patent number: 8636942
    Abstract: A process for production of a nonwoven fabric, which comprises a step wherein a thermoplastic polymer is dissolved in a mixed solvent composed of a volatile good solvent and a volatile poor solvent, a step wherein the resulting solution is spun by an electrospinning method and a step wherein a nonwoven fabric accumulated on a collecting sheet is obtained, is employed to provide a nonwoven fabric having a surface area sufficiently large as a matrix for cell culturing in the field of regenerative medicine, with large gaps between filaments and a low apparent density suitable for cell culturing.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: January 28, 2014
    Assignee: Teijin Limited
    Inventors: Shinya Komura, Takanori Miyoshi, Yoshihiko Sumi, Hiroyoshi Minematsu
  • Publication number: 20130009514
    Abstract: An electroconductive film for an actuator is formed from a gel composition including carbon nanofibers, an ionic liquid, and a polymer. The carbon nanofibers are produced with an aromatic mesophase pitch by melt spinning.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 10, 2013
    Applicants: National Institute of Advanced Industrial Science and Technology, ALPS ELECTRIC CO., LTD., NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Kinji Asaka, Takushi Sugino, Soshi Shiraishi, Isao Takahashi, Tomomasa Takatsuka, Shinya Komura