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. 10, 2017
Filed:
Apr. 22, 2005
Kenichiro Tadokoro, Futtsu, JP;
Takashi Iijima, Futtsu, JP;
Hiroshi Kajiro, Futtsu, JP;
Hideaki Sawada, Futtsu, JP;
Yoichi Matsuzaki, Futtsu, JP;
Kenichiro Tadokoro, Futtsu, JP;
Takashi Iijima, Futtsu, JP;
Hiroshi Kajiro, Futtsu, JP;
Hideaki Sawada, Futtsu, JP;
Yoichi Matsuzaki, Futtsu, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Abstract
A fuel cell comprised of a proton conductive electrolyte film sandwiched between a pair of catalyst layers, wherein the catalyst layer of at least the cathode is comprised of a mixture including a catalyst ingredient, an electrolytic material, and a carbon material, the carbon material is comprised of a catalyst-carrying carbon material carrying the catalyst ingredient and a gas-diffusing carbon material not carrying the catalyst ingredient, and the catalyst-carrying carbon material has an amount of adsorption of water vapor at 25° C. and a relative humidity of 90% of 50 ml/g or more.