Patents by Inventor Toyohiro Matsuura

Toyohiro Matsuura 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).

  • Reinforced electrolyte membrane for fuel cell, membrane-electrode assembly for fuel cell, and polymer electrolyte fuel cell comprising the same
    Patent number: 8802314
    Abstract: It is an object of the present invention to provide a fuel cell electrolyte membrane reinforced with a porous substrate which has excellent durability and in which the amount of cross leakage as a result of chemical deterioration of electrolyte membrane components due to the presence of peroxide and/or radicals is particularly reduced. The present invention relates to an electrolyte membrane for a fuel cell comprising a polyelectrolyte, which contains a porous substrate and a radical scavenger dispersed in the polyelectrolyte.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: August 12, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, W.L. Gore & Associates, Co., Ltd.
    Inventors: Yasuhiro Akita, Masanori Aimu, Tatsuya Kawahara, Takeshi Nagasawa, Toyohiro Matsuura, Takeyuki Suzuki, Hiroshi Kato, Hideki Yamada
  • Reinforced electrolyte membrane for fuel cell, fuel cell membrane-electrode assembly, and solid polymer electrolyte fuel cell comprising the fuel cell membrane-electrode assembly
    Patent number: 8795923
    Abstract: The present invention provides a reinforced electrolyte membrane for fuel cell comprising a porous substrate impregnated with a polyelectrolyte liquid dispersion, wherein either the maximum tensile strength in the machine direction (for sheet processing) (MD) or the maximum tensile strength in the transverse direction (TD; vertical to the MD direction) for the electrolyte membrane is 70 N/mm2 or more at 23° C. at a relative humidity of 50% or 40 N/mm2 or more at 80° C. at a relative humidity of 90%. This reinforced electrolyte membrane for fuel cell, in which the amount of fluorine ions eluted as a result of deterioration of electrolyte membrane components in particular is reduced, has excellent durability.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: August 5, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, W.L. Gore & Associates Co. Ltd.
    Inventors: Yasuhiro Akita, Takeshi Nagasawa, Takeyuki Suzuki, Toyohiro Matsuura
  • Laminate and Method For Producing Same
    Publication number: 20120021335
    Abstract: The present invention provides a laminate in which a layer containing an ion-exchange resin is combined with a release film which exhibits satisfactory releasability of the layer containing an ion-exchange resin. The laminate according to the present invention is produced by laminating a layer containing an ion-exchange resin on a release film made of a cycloolefinic copolymer.
    Type: Application
    Filed: February 4, 2010
    Publication date: January 26, 2012
    Inventors: Mikimasa Sugioka, Toyohiro Matsuura, Hideki Yamada
  • REINFORCED ELECTROLYTE MEMBRANE FOR FUEL CELL, MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELL, AND POLYMER ELECTROLYTE FUEL CELL COMPRISING THE SAME
    Publication number: 20110287335
    Abstract: It is an object of the present invention to provide a fuel cell electrolyte membrane reinforced with a porous substrate which has excellent durability and in which the amount of cross leakage as a result of chemical deterioration of electrolyte membrane components due to the presence of peroxide and/or radicals is particularly reduced. The present invention relates to an electrolyte membrane for a fuel cell comprising a polyelectrolyte, which contains a porous substrate and a radical scavenger dispersed in the polyelectrolyte.
    Type: Application
    Filed: October 15, 2009
    Publication date: November 24, 2011
    Applicants: W.L, GORE & ASSOCIATES CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuhiro Akita, Masanori Aimu, Tatsuya Kawahara, Takeshi Nagasawa, Toyohiro Matsuura, Takeyuki Suzuki, Hiroshi Kato, Hideki Yamada
  • REINFORCED ELECTROLYTE MEMBRANE FOR FUEL CELL, FUEL CELL MEMBRANE-ELECTRODE ASSEMBLY, AND SOLID POLYMER ELECTROLYTE FUEL CELL COMPRISING THE FUEL CELL MEMBRANE-ELECTRODE ASSEMBLY
    Publication number: 20110008708
    Abstract: The present invention provides a reinforced electrolyte membrane for fuel cell comprising a porous substrate impregnated with a polyelectrolyte liquid dispersion, wherein either the maximum tensile strength in the machine direction (for sheet processing) (MD) or the maximum tensile strength in the transverse direction (TD; vertical to the MD direction) for the electrolyte membrane is 70 N/mm2 or more at 23° C. at a relative humidity of 50% or 40 N/mm2 or more at 80° C. at a relative humidity of 90%. This reinforced electrolyte membrane for fuel cell, in which the amount of fluorine ions eluted as a result of deterioration of electrolyte membrane components in particular is reduced, has excellent durability.
    Type: Application
    Filed: October 17, 2008
    Publication date: January 13, 2011
    Inventors: Yasuhiro Akita, Takeshi Nagasawa, Takeyuki Suzuki, Toyohiro Matsuura