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:
Feb. 21, 2006
Filed:
Sep. 18, 2001
Hideki Ito, Hiroshima-ken, JP;
Toshiro Kobayashi, Hiroshima-ken, JP;
Takuya Moriga, Hiroshima-ken, JP;
Akihiko Yamada, Kanagawa-ken, JP;
Hideki Ito, Hiroshima-ken, JP;
Toshiro Kobayashi, Hiroshima-ken, JP;
Takuya Moriga, Hiroshima-ken, JP;
Akihiko Yamada, Kanagawa-ken, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A polymer electrolyte fuel cell comprising a cell having a solid polymer film, separators disposed on both sides of the cell so as to interpose the cell therebetween, and diffusion layers disposed between the cell and the separators and each having a substrate comprising an electrically conductive porous material and a slurry layer disposed on the substrate, wherein at least a part of each diffusion layer is provided with a gas barrier for preventing the permeation of gas in a direction parallel to the major surface of the diffusion layer.