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.

Date of Patent:
May. 04, 2004

Filed:

Dec. 07, 1999
Applicant:
Inventor:

Shuji Hitomi, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/90 ; H01M 4/96 ;
U.S. Cl.
CPC ...
H01M 4/90 ; H01M 4/96 ;
Abstract

Catalyst material containing two or more kinds of metal elements or/and silicon are mainly carried in proton conductive passages of a solid polymer electrolyte and the surface of each of carbon particles which abut on each the proton conductive passages.


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