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. 17, 2017
Filed:
Aug. 31, 2010
Masaki Yamauchi, Osaka, JP;
Yoichiro Tsuji, Osaka, JP;
Naotsugu Koashi, Kyoto, JP;
Hideo Kasahara, Osaka, JP;
Takashi Nakagawa, Osaka, JP;
Yoko Yamamoto, Osaka, JP;
Masaki Yamauchi, Osaka, JP;
Yoichiro Tsuji, Osaka, JP;
Naotsugu Koashi, Kyoto, JP;
Hideo Kasahara, Osaka, JP;
Takashi Nakagawa, Osaka, JP;
Yoko Yamamoto, Osaka, JP;
PANASONIC CORPORATION, Osaka, JP;
Abstract
In order to provide a membrane electrode assembly that can further improve power generation performances of a fuel cell, the present invention allows a rib portion () that separates mutually adjacent gas flow passages () from each other to have a porosity lower than the porosity of a lower area () of the rib portion. Thus, it is possible to suppress the deformation of the rib portion and excessive permeation of a reaction gas, and consequently to further improve the power generation performances.