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:
Oct. 18, 2011
Filed:
Feb. 08, 2007
Yutaka Ishioka, Nagoya, JP;
Hideaki Tanahashi, Komaki, JP;
Yasuhiko Mihara, Nagoya, JP;
Tokai Rubber Industries, Ltd., Komaki, JP;
Abstract
A unit cell for use in a solid polymer electrolyte fuel cell comprising: a membrane/electrode assembly including a fuel electrode and an oxidant electrode disposed on either side of a solid polymer electrolyte membrane, the assembly being sandwiched from either side by a first separator and a second separator to give a stacked construction to form therebetween a fuel gas flow passage and an oxidant gas flow passage. The solid polymer electrolyte membrane has a projecting portion projecting outwardly beyond the fuel electrode and the oxidant electrode, and the projecting portion is coated by a reinforcing resin member. Connecting grooves formed on a primary face of the separators connecting both ends of the fuel gas/oxidant gas flow passages with a fuel/oxidant gas feed/discharge ports, respectively. The reinforcing resin member is placed so as to bridge openings of the connecting grooves in order to give a tunnel construction to the connecting grooves.