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:
Jan. 25, 2005
Filed:
Dec. 02, 2003
Kaoru Fukuda, Wako, JP;
Masaki Tani, Wako, JP;
Hayato Kaji, Wako, JP;
Shigeru Inai, Wako, JP;
Takeshi Muro, Wako, JP;
Shinya Watanabe, Wako, JP;
Tomoyuki Tada, Hiratsuka, JP;
Masahiko Inoue, Hiratsuka, JP;
Kaoru Fukuda, Wako, JP;
Masaki Tani, Wako, JP;
Hayato Kaji, Wako, JP;
Shigeru Inai, Wako, JP;
Takeshi Muro, Wako, JP;
Shinya Watanabe, Wako, JP;
Tomoyuki Tada, Hiratsuka, JP;
Masahiko Inoue, Hiratsuka, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Tanaka Kikinzoku Kogyo K.K., Tokyo, JP;
Abstract
A membrane electrode assembly for a polymer electrolyte fuel cell has a polymer electrolyte membrane, an anode, and a cathode having a catalytic layer and a diffusion layer. The alloy catalyst contains ruthenium in the anode diffusion layer. The assembly has less loss of efficiency, particularly when operated at high potentials.