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).

  • 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
  • Publication number: 20120227893
    Abstract: It is an object of the present invention to provide a cylindrical body which has an excellent elastic modulus and elastic recovery and is suitable for use as a scaffold material for revascularization. It is a further object of the present invention to provide a cylindrical body which has an outermost layer with high air permeability, is excellent in cell infiltration and is suitable for use as a scaffold material for revascularization. The cylindrical body of the present invention is a hollow cylindrical body consisting of a plurality of concentric layers and having an outer diameter of 0.5 to 50 mm and a thickness of 200 to 5,000 ?m, and each layer is made of aliphatic polyester fibers having an average fiber diameter of 0.05 to 50 ?m.
    Type: Application
    Filed: May 16, 2012
    Publication date: September 13, 2012
    Applicant: TEIJIN LIMITED
    Inventors: Eiichi KITAZONO, Hiroaki KANEKO, Takanori MIYOSHI, Shinya KOMURA, Ryo SAITO
  • Publication number: 20110033705
    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: Application
    Filed: April 6, 2009
    Publication date: February 10, 2011
    Applicants: Teijin Limited, Tokyo Institute of Technology
    Inventors: Shinya Komura, Takanori Miyoshi, Mitsunao Kakuta, Eiichi Yasuda
  • Patent number: 7709088
    Abstract: Inorganic fibers consisting substantially of silicon, carbon, oxygen and a transition metal, having a fiber size of no greater than 2 ?m and having fiber lengths of 100 ?m or greater.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: May 4, 2010
    Assignee: Teijin Limited
    Inventors: Ryuji Nonokawa, Takanori Miyoshi, Shinya Komura, Hiroyoshi Minematsu
  • Publication number: 20100075838
    Abstract: There is provided a method for production of ceramic fibers that have small fiber diameters and adequate photocatalytic activity even when exposed to high-temperature environments, the method providing cost advantages and a safe production environment. Specifically, a composition containing titanium atoms, silicon atoms and aluminum atoms is used for production of a fiber aggregate from the composition by electrospinning, followed by calcination to obtain ceramic fiber with a mean fiber diameter of between 50 nm and 1000 nm.
    Type: Application
    Filed: December 19, 2007
    Publication date: March 25, 2010
    Applicant: TEIJIN LIMITED
    Inventors: Takanori Miyoshi, Shinya Komura, Yusuke Sato
  • Publication number: 20100006150
    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: Application
    Filed: July 13, 2006
    Publication date: January 14, 2010
    Applicants: TEIJIN DUPONT FILMS JAPAN LIMITED, TEIJIN LIMITED
    Inventors: Rei Nishio, Koji Kubo, Shinya Komura, Takanori Miyoshi
  • Publication number: 20090208744
    Abstract: A ceramic fiber having an average fiber diameter of from 50 to 1000 nm, a fiber length of 100 ?m or more, and a BET specific surface area of from 0.1 to 10 m2/g.
    Type: Application
    Filed: May 31, 2006
    Publication date: August 20, 2009
    Applicant: TEIJIN LIMITED
    Inventors: Shinya Komura, Takanori Miyoshi
  • Publication number: 20090068466
    Abstract: A titania fiber which is excellent in a balance between a BET specific surface area and which is able to reveal sufficient photocatalytic activity while having mechanical strength and a method for manufacturing the subject titania fiber are provided. By using a titanium oxide particle-containing as a fiber forming composition for forming a titania fiber, a fiber aggregate is manufactured from the subject composition by an electrospinning method and then baked, thereby obtaining a titania fiber which has an average fiber diameter of 50 nm or more and not more than 1,000 nm; when a reflection method by a goniometer is employed, has a crystallite size of 50 nm or more and not more than 200 nm; and has a BET specific surface area of 3 m2/g or more and not more than 100 m2/g.
    Type: Application
    Filed: April 17, 2007
    Publication date: March 12, 2009
    Applicant: TEIJIN LIMITED
    Inventors: Shinya Komura, Takanori Miyoshi
  • Publication number: 20080272520
    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: Application
    Filed: July 7, 2008
    Publication date: November 6, 2008
    Applicant: Teijin Limited
    Inventors: Shinya Komura, Takanori Miyoshi, Yoshihiko Sumi, Hiroyoshi Minematsu
  • Publication number: 20080070037
    Abstract: Inorganic fibers consisting substantially of silicon, carbon, oxygen and a transition metal, having a fiber size of no greater than 2 ?m and having fiber lengths of 100 ?m or greater.
    Type: Application
    Filed: June 21, 2005
    Publication date: March 20, 2008
    Applicant: TEIJIN LIMITED
    Inventors: Ryuji Nonokawa, Takanori Miyoshi, Shinya Komura, Hiroyoshi Minematsu
  • Publication number: 20070298072
    Abstract: It is an object of the present invention to provide a cylindrical body which has an excellent elastic modulus and elastic recovery and is suitable for use as a scaffold material for revascularization. It is a further object of the present invention to provide a cylindrical body which has an outermost layer with high air permeability, is excellent in cell infiltration and is suitable for use as a scaffold material for revascularization. The cylindrical body of the present invention is a hollow cylindrical body consisting of a plurality of concentric layers and having an outer diameter of 0.5 to 50 mm and a thickness of 200 to 5,000 ?m, and each layer is made of aliphatic polyester fibers having an average fiber diameter of 0.05 to 50 ?m.
    Type: Application
    Filed: November 18, 2005
    Publication date: December 27, 2007
    Applicant: TEIJIN LIMITED
    Inventors: Eiichi Kitazono, Hiroaki Kaneko, Takanori Miyoshi, Shinya Komura, Ryo Saito