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:
Jun. 10, 2008
Filed:
Nov. 25, 2003
Applicants:
Takumi Taniguchi, Tokyo, JP;
Masayoshi Takami, Hamamatsu, JP;
Masahiro Rikukawa, Yokohama, JP;
Yuko Takeoka, Tokyo-to, JP;
Inventors:
Takumi Taniguchi, Tokyo, JP;
Masayoshi Takami, Hamamatsu, JP;
Masahiro Rikukawa, Yokohama, JP;
Yuko Takeoka, Tokyo-to, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/5317 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides phosphonated poly(4-phenoxybenzoyl-1,4-phenylene), and synthesizing method thereof, an antioxidant formed of phosphonated poly(4-phenoxybenzoyl-1,4-phenylene), a high-durability polymer electrolyte composite formed of a fluoropolymer electrolyte and phosphonated poly(4-phenoxybenzoyl-1,4-phenylene), and a fuel cell in which the high-durability polymer electrolyte composite is used in an electrode thereof.