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:
Dec. 01, 2015
Filed:
Jul. 08, 2013
Honda Motor Co., Ltd., Minato-ku, Tokyo, JP;
Keiko Yamazaki, Utsunomiya, JP;
Masataka Furuyama, Utsunomiya, JP;
Takashi Kato, Tochigi-ken, JP;
Ryo Jinba, Utsunomiya, JP;
Hideaki Sumi, Utsunomiya, JP;
Masataka Shibuya, Sakura, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A membrane electrode assembly of a fuel cell includes a solid polymer electrolyte membrane, a cathode, and an anode. The surface size of a cathode side electrode catalyst layer of the cathode is smaller than the surface size of an anode side electrode catalyst layer of the anode. An inner end of a gas impermeable film provided around the anode side electrode catalyst layer and an outer end of a cathode side electrode catalyst layer are overlapped with each other on both sides of the solid polymer electrolyte membrane.