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:
Jun. 08, 2004
Filed:
Dec. 15, 2000
Hisaaki Gyoten, Shijonawate, JP;
Eiichi Yasumoto, Katano, JP;
Kazuhito Hatoh, Osaka, JP;
Makoto Uchida, Hirakata, JP;
Yasushi Sugawara, Settsu, JP;
Teruhisa Kanbara, Ikeda, JP;
Junji Morita, Moriguchi, JP;
Hideo Ohara, Katano, JP;
Kazufumi Nishida, Moriguchi, JP;
Osamu Sakai, Neyagawa, JP;
Yukiyoshi Ono, Hirakata, JP;
Yasuo Takebe, Katano, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The polymer electrolyte fuel cell of the present invention exhibits an excellent performance with an efficient electrode reaction; by providing a layer comprising an electroconductive fine particle between the catalytic reaction layer and the gas diffusion layer in the electrodes; by providing a hydrogen ion diffusion layer on at least either surface of the catalyst particle or the carrier, which carries the catalyst particle in the catalytic reaction layer; or by constituting the catalytic reaction layer with at least a catalyst comprising a hydrophilic carbon material with catalyst particles carried thereon and a water repellent carbon material.