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. 23, 2007
Filed:
Mar. 25, 2003
Applicants:
Ken Yoshimura, Tsukuba, JP;
Arihiro Yashiro, Ibaraki, JP;
Mitsunori Nodono, Tsukuba, JP;
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 59/42 (2006.01); C08F 8/00 (2006.01); C08J 5/22 (2006.01); H01M 8/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a polymer electrolyte which shows excellent characteristics as proton conductive membrane of fuel cells and the like. This polymer electrolyte contains an aromatic polymer which is characterized by having a super strong acid group in a side chain.