Patents by Inventor Toyoaki Ishizaki

Toyoaki Ishizaki 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).

  • Polymer electrolyte fuel cell, electrode for it and method for producing it
    Patent number: 6734132
    Abstract: An electrode for a polymer electrolyte fuel cell, which is a porous gas diffusion electrode comprising a catalyst powder and an ion exchange resin, wherein a solvent-soluble fluorine-containing polymer having substantially no ion exchange groups exists at least at a part of the inner surface of pores of the electrode.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: May 11, 2004
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Masaru Yoshitake, Naoki Yoshida, Toyoaki Ishizaki, Shinji Terazono
  • Polymer electrolyte fuel cell, electrode for it and method for producing it
    Publication number: 20030077503
    Abstract: An electrode for a polymer electrolyte fuel cell, which is a porous gas diffusion electrode comprising a catalyst powder and an ion exchange resin, wherein a solvent-soluble fluorine-containing polymer having substantially no ion exchange groups exists at least at a part of the inner surface of pores of the electrode.
    Type: Application
    Filed: November 20, 2002
    Publication date: April 24, 2003
    Applicant: ASAHI GLASS COMPANY LTD.
    Inventors: Masaru Yoshitake, Naoki Yoshida, Toyoaki Ishizaki, Shinji Terazono
  • Polymer electrolyte fuel cell, electrode for it and method for producing it
    Patent number: 6528200
    Abstract: An electrode for a polymer electrolyte fuel cell, which is a porous gas diffusion electrode comprising a catalyst powder and an ion exchange resin, wherein a solvent-soluble fluorine-containing polymer having substantially no ion exchange groups exists at least at a part of the inner surface of pores of the electrode.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: March 4, 2003
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Masaru Yoshitake, Naoki Yoshida, Toyoaki Ishizaki, Shinji Terazono
  • Solid polymer electrolyte type fuel cell
    Patent number: 6087032
    Abstract: A polymer electrolyte fuel cell comprising a membrane-form solid polymer electrolyte, a fuel electrode disposed on one side of the polymer electrolyte, and an air electrode disposed on the other side of the polymer electrolyte, wherein each of the fuel electrode and the air electrode is made of a gas diffusion electrode having a catalyst covered with a fluorocarbon ion exchange resin, and the ion exchange capacity of the ion exchange resin of the fuel electrode is larger than the ion exchange capacity of the ion exchange resin of the air electrode.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: July 11, 2000
    Assignee: Asahi Glass Company Ltd.
    Inventors: Masaru Yoshitake, Naoki Yoshida, Toyoaki Ishizaki, Shinji Terazono