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:
Mar. 03, 2009
Filed:
Dec. 22, 2004
Hideyuki Ueda, Ibaraki, JP;
Takashi Akiyama, Suita, JP;
Kohji Yuasa, Hirakata, JP;
Yukihiro Okada, Katano, JP;
Satoshi Shibutani, Hirakata, JP;
Hideyuki Ueda, Ibaraki, JP;
Takashi Akiyama, Suita, JP;
Kohji Yuasa, Hirakata, JP;
Yukihiro Okada, Katano, JP;
Satoshi Shibutani, Hirakata, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In order to prevent the crossover of an organic fuel such as methanol in a fuel cell and to exhibit excellent electricity generation characteristics without impairing the utilization efficiency of the fuel, at least either of (1) a discontinuous catalyst layer being formed on a surface of an anode catalyst layer and having a higher density (existence probability) of platinum type catalyst than the anode catalyst layer and (2) an electrolyte polymer layer is formed at the interface between the anode catalyst layer and a polymer electrolyte membrane.