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:
May. 26, 2009
Filed:
Jun. 22, 2004
Applicants:
Tomio Iwasaki, Tsukuba, JP;
Hideo Miura, Sendai, JP;
Inventors:
Tomio Iwasaki, Tsukuba, JP;
Hideo Miura, Sendai, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/86 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a catalyst structure of high catalytic activity and a fuel cell of high cell output. The catalyst structure comprises a conductive film and catalyst particles formed on the conductive film wherein the difference between lattice constant of a material constituting the conductive film and that of a material constituting the catalyst particles is not more than 16%, and preferably not less than 3%.