Patents by Inventor Motohiko Kamogawa

Motohiko Kamogawa 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).

  • Mold for producing fuel cell separator
    Patent number: 6579083
    Abstract: A mold for producing a fuel cell separator with which a flash, even if it occurs, does not cause a thickness unevenness. The mold includes a plurality of molds 2, 4 and 10, and a fuel cell molding cavity 5 for separator being defined among the molds. At least one of the molds is provided with a flash reservoir cavity 11 which is communicated with the cavity 5. An amount of material in excess of the volume of the cavity 5 is charged, and melted by the application of pressure and heat. The melted material fills up the entire cavity 5, with the excess thereof entering the cavity 11. Since the molds 2 and 10 maintain a direct contact with each other, it is possible to obtain a separator molded with a high accuracy.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: June 17, 2003
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Kazuo Saito, Atsushi Hagiwara, Takashi Maki, Motohiko Kamogawa
  • Mold for producing fuel cell separator
    Publication number: 20020004082
    Abstract: This invention is to provide a mold for a fuel cell separator with which a flash, even if it occurs, does not cause a thickness unevenness.
    Type: Application
    Filed: January 12, 2001
    Publication date: January 10, 2002
    Inventors: Kazuo Saito, Atsushi Hagiwara, Takashi Maki, Motohiko Kamogawa