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:
Feb. 28, 2012
Filed:
Jun. 29, 2007
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 has 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. For a polymer electrolyte membraneor for a catalyst layerconstituting electrodesand, a polymer comprising units (U1) and units (U2) is used: Q, Q: a perfluoroalkylene group which may have —O— or the like; R, R: a perfluoroalkyl group which may have —O—; X: an oxygen atom or the like; a: 0 or the like; Y, Z: a fluorine atom, or a monovalent perfluoroorganic group such as —CF; S: 0 to 1; and t: 0 to 3.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile