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:
May. 17, 2005
Filed:
Sep. 06, 2000
Kazufumi Nishida, Moriguchi, JP;
Junji Niikura, Hirakata, JP;
Hisaaki Gyoten, Shijonawate, JP;
Kazuhito Hatoh, Osaka, JP;
Hideo Ohara, Katano, JP;
Teruhisa Kanbara, Toyonaka, JP;
Satoru Fujii, Takatsuki, JP;
Kazufumi Nishida, Moriguchi, JP;
Junji Niikura, Hirakata, JP;
Hisaaki Gyoten, Shijonawate, JP;
Kazuhito Hatoh, Osaka, JP;
Hideo Ohara, Katano, JP;
Teruhisa Kanbara, Toyonaka, JP;
Satoru Fujii, Takatsuki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A polymer electrolyte fuel cell comprises a separator plate having a gas channel for supplying an oxidant gas or a fuel gas to an electrode, said separator plate comprising a metal plate, a conductive film formed on the surface of the metal plate, and a diffused layer resulting from diffusion of a material of the conductive film formed between the metal plate and the conductive film. The fuel cell produces stable output free from corrosion or dissolution of the metal plate even in a long-term operation.