The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 2004
Filed:
Mar. 26, 2003
Separator for fuel cell, production process thereof, and solid polymer fuel cell using the separator
Atsushi Ooma, Yokohama, JP;
Yasuji Ogami, Yokohama, JP;
Michio Hori, Yokohama, JP;
Masanori Kobayashi, Iwaki, JP;
You Ootani, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A solid polymer fuel cell having a structure in which a film electrode composite having gas diffusion electrodes disposed on both surfaces of a solid polymer film and separators having gas channels to feed at least either a fuel gas or an oxidant gas to the electrodes are laminated repeatedly in such a manner that they contact each other, wherein the separators each comprise a carbon resin composite material and an expansion graphite layer, on at least one surface of the material, pits and projections to form the gas channels are formed, and the layer is formed on the surfaces of the material including the pits and the projections.