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:
Mar. 27, 2007
Filed:
Aug. 29, 2002
Masaaki Nanaumi, Utsunomiya, JP;
Junichi Yano, Utsunomiya, JP;
Yoshihiro Nakanishi, Kawachi-gun, JP;
Tadashi Nishiyama, Shioya-gun, JP;
Masaaki Nanaumi, Utsunomiya, JP;
Junichi Yano, Utsunomiya, JP;
Yoshihiro Nakanishi, Kawachi-gun, JP;
Tadashi Nishiyama, Shioya-gun, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
In order to provide a membrane electrode assembly and a fuel cell in which the thickness of the solid polymer electrolyte membrane is thin by enhancing self-protection of the solid polymer electrolyte membrane, a membrane electrode assembly comprises a solid polymer electrolyte membrane and a pair of gas diffusion electrode layer having catalyst layers and gas diffusion layers. The catalyst layers of the gas diffusion electrode layer sandwich the solid polymer electrolyte membrane, one surface of the solid polymer electrolyte membrane is covered by the gas diffusion electrode layer and the other surface of the solid polymer electrolyte membrane extends over the gas diffusion electrode layer, and ends of the catalyst layer of one gas diffusion electrode layer are disposed to be offset to ends of the catalyst layer of the other gas diffusion electrode layer.