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. 15, 2010
Filed:
May. 23, 2008
Masaru Oda, Utsunomiya, JP;
Masahiro Mohri, Utsunomiya, JP;
Hiroaki Ohta, Utsunomiya, JP;
Yasuhiro Watanabe, Kawaguchi, JP;
Satoshi Tanimoto, Utsunomiya, JP;
Nobuhiro Saito, Saitama, JP;
Masaru Oda, Utsunomiya, JP;
Masahiro Mohri, Utsunomiya, JP;
Hiroaki Ohta, Utsunomiya, JP;
Yasuhiro Watanabe, Kawaguchi, JP;
Satoshi Tanimoto, Utsunomiya, JP;
Nobuhiro Saito, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An oxygen-containing gas supply passage and an oxygen-containing gas discharge passage extend through a set of diagonal positions of a first metal separator, and a fuel gas supply passage and a fuel gas discharge passage extend through the other set of diagonal positions of the first metal separator. A fuel gas flow field is connected to the fuel gas supply passage through an inlet buffer at an upper position, and connected to the fuel gas discharge passage through an outlet buffer at a lower position. The inlet buffer includes a first inlet buffer area adjacent to the fuel gas supply passage and a second inlet buffer area adjacent to the fuel gas flow field. Grooves of the first inlet buffer area are deeper than grooves of the second inlet buffer area in the stacking direction.