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:
Sep. 13, 2011
Filed:
Jan. 24, 2008
Tetsuji Shimohira, Chiyoda-ku, JP;
Kazuo Hamazaki, Chiyoda-ku, JP;
Susumu Saito, Chiyoda-ku, JP;
Satoru Hommura, Chiyoda-ku, JP;
Seigo Kotera, Chiyoda-ku, JP;
Tetsuji Shimohira, Chiyoda-ku, JP;
Kazuo Hamazaki, Chiyoda-ku, JP;
Susumu Saito, Chiyoda-ku, JP;
Satoru Hommura, Chiyoda-ku, JP;
Seigo Kotera, Chiyoda-ku, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
A polymer electrolyte membrane made of a polymer having a low electrical resistance, high heat resistance and is strong against repeats of swelling and shrinkage. Thus, a membrane/electrode assembly for polymer electrolyte fuel cells having high power generation performance and excellent in durability can be provided. The polymer has repeating units represented by the following formula (U1 ) and repeating units represented by the following formula (U2):