Patents by Inventor Norimasa Kawagoe

Norimasa Kawagoe 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).

  • Fuel cell stack and method of pressing together the same
    Patent number: 5419980
    Abstract: A fuel cell stack having unit cells and separators, in which each unit cell comprises a solid polymer electrolyte membrane having a pair of electrode catalysts attached on both surfaces, and a pair of collectors, each made of a rigid body, being in contact with respective electrode catalysts, and each of the separators comprises a pair of pressure generating plates defining therebetween a pressure chamber to which a pressurized fluid is introduced, the pressure generating plates being deformed by the pressurized fluid and pressed against the adjacent respective collectors.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: May 30, 1995
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takafumi Okamoto, Manabu Tanaka, Ichiro Baba, Hideo Kato, Norimasa Kawagoe