Patents by Inventor Harufumi Hasuda

Harufumi Hasuda 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, fuel cell separator, and method of manufacture thereof
    Patent number: 6794078
    Abstract: A fuel-cell separator comprising a resin and an electric conductor dispersed in the resin is produced by thermally molding a mixture comprising the electric conductor and the resin.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: September 21, 2004
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Noriji Tashiro, Atsushi Fujita, Tomonori Seki, Harufumi Hasuda