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:
Aug. 12, 2014
Filed:
Aug. 08, 2008
Narutoshi Sugita, Utsunomiya, JP;
Masaru Oda, Utsunomiya, JP;
Masaaki Sakano, Utsunomiya, JP;
Norimasa Kawagoe, Utsunomiya, JP;
Takashi Kosaka, Utsunomiya, JP;
Narutoshi Sugita, Utsunomiya, JP;
Masaru Oda, Utsunomiya, JP;
Masaaki Sakano, Utsunomiya, JP;
Norimasa Kawagoe, Utsunomiya, JP;
Takashi Kosaka, Utsunomiya, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A fuel cell according to the present invention includes a power generation unit. The power generation unit is formed by stacking a first metal separator, a first membrane electrode assembly, a second metal separator, a second membrane electrode assembly, and a third metal separator. The number of flow grooves in a first oxygen-containing gas flow field is different from the number of flow grooves in a second oxygen-containing gas flow field. The first oxygen-containing gas flow field and the second oxygen-containing gas flow field have the same length, and the flow grooves in the first oxygen-containing gas flow field and the flow grooves in the second oxygen-containing gas flow field have the same depth.