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:
Jul. 27, 2004

Filed:

Jul. 11, 2002
Applicant:
Inventors:

Hiroshi Akita, Wako, JP;

Masao Ichikawa, Wako, JP;

Masaru Iguchi, Wako, JP;

Hiroyuki Oyanagi, Wako, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/12 ; M01M 4/02 ;
U.S. Cl.
CPC ...
H01B 1/12 ; M01M 4/02 ;
Abstract

A proton conducting polymer obtained by blending an organic phosphoric acid compound solution with a meta type polyaniline solution; a solid polymer electrolyte for a fuel cell comprising the proton conducting polymer, which is excellent in proton conductivity, methanol barrier property and dopant stability in an aqueous solution of methanol; and an electrode comprising the proton conducting and fine catalyst particles carried on porous particles.


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