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:
May. 22, 2012
Filed:
Jan. 29, 2008
Takeou Okanishi, Osaka, JP;
Atsushi Nogi, Aichi, JP;
Yoichiro Tsuji, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A membrane membrane-reinforcement-member assembly, membrane catalyst-layer assembly, membrane electrode assembly, and polymer electrolyte fuel cell are provided, which are so configured as to ensure sufficient durability and a cost reduction in unit cells and be suited for mass production. To this end, a membrane membrane-reinforcement-member assembly () of a membrane catalyst-layer assembly () provided in an MEA () of a cell () has a polymer electrolyte membrane (), a pair of first membrane reinforcement members () and a pair of second membrane reinforcement members () which members (), () are embedded in the polymer electrolyte membrane () such that their main surfaces are not exposed therefrom. The first and second membrane reinforcement members (), () are embedded in a parallelogrammatic fashion so as to overlap each other in the four corners of the polymer electrolyte membrane () when viewed in a thickness direction of the polymer electrolyte membrane.