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. 11, 2009
Filed:
Sep. 07, 2004
Hideo Kato, Utsunomiya, JP;
Shigeru Inai, Shioya-gun, JP;
Katsumi Hayashi, Utsunomiya, JP;
Ryo Jinba, Utsunomiya, JP;
Hideo Kato, Utsunomiya, JP;
Shigeru Inai, Shioya-gun, JP;
Katsumi Hayashi, Utsunomiya, JP;
Ryo Jinba, Utsunomiya, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A method of starting up at a subzero temperature a solid polymer electrolyte fuel cell stack that is formed by stacking a plurality of layers of separators and membrane electrode assemblies having a solid polymer electrolyte membrane and electrodes. The method includes a step of using a solid polymer electrolyte fuel cell stack in which the separators are made from metal and have a cross-sectional waveform structure, and a space that is formed between at least a portion of the separators and separators that are placed adjacent to this portion of the separators is used as a coolant flow passage.