Patents by Inventor Hirotaka Fukatsu

Hirotaka Fukatsu 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, separator for fuel cell, and manufacturing method of separator
    Patent number: 6855446
    Abstract: A fuel cell composed of a plurality of cell function assemblies of each of which includes a set of spaced electrolytic membranes, two pairs of electrode plates in contact with opposite surfaces of each of the electrolytic membranes, a set of separators, and a set of six support frames assembled to retain the electrolytic membranes and separators in position. In the fuel cell, the separators each are in the form of a flat plate of synthetic resin integrally provided with a plurality of spaced projections made of pressed carbon powder and retained in contact with the electrode plates to form a pair of reaction chambers at opposite sides of each of the electrolytic membranes.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: February 15, 2005
    Assignee: Toyota Auto Body Co., Ltd.
    Inventors: Keiji Hashimoto, Masanao Shiomi, Hirotaka Fukatsu, Kousuke Kawajiri, Seiken Hashimoto, Hiroyuki Morita