Patents by Inventor Sei Takashima

Sei Takashima 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).

  • Insulated fuel cell
    Patent number: 5213909
    Abstract: A fuel cell has a plurality of fuel cell sub-stacks each of which has cell bodies, at least one anode header and at least one cathode header and which are stacked to form a fuel cell stack body, and side thermal insulators which are provided on the side of the fuel cell stack body so as to keep the fuel cell sub-stacks warm and which are discrete from each other in the direction of stacking of the fuel cell sub-stacks, each of the plurality of side thermal insulators being independently supported.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: May 25, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Sei Takashima, Keizou Ohtsuka, Toshiki Kahara, Yasutaka Komatsu