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:
Nov. 20, 2007
Filed:
Jul. 23, 2003
Narutoshi Sugita, Utsunomiya, JP;
Yoshihiro Nakanishi, Kawachi-gun, JP;
Hideaki Kikuchi, Kawachi-gun, JP;
Narutoshi Sugita, Utsunomiya, JP;
Yoshihiro Nakanishi, Kawachi-gun, JP;
Hideaki Kikuchi, Kawachi-gun, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides a fuel cell comprising a pair of separators sandwiching outsides of a membrane electrode assembly composed of a pair of electrodes provided on both sides of a solid polymer electrolyte membrane, an outer seal member sandwiched by a pair of separators at a position surrounding an outer periphery of the membrane electrode assembly, an inner seal member sandwiched by one of the pair of separators and an outer periphery of the electrolyte membrane, and a backing member opposing to the inner seal member interposing the electrolyte membrane, wherein steps are formed at contact surfaces of the inner seal member and the outer seal member on one of the pair of separators.