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:
Sep. 11, 2012
Filed:
May. 15, 2007
Atsushi Miyazawa, Kamakura, JP;
Motoki Yaginuma, Yokohama, JP;
Motoharu Obika, Yokohama, JP;
Koshi Takata, Yokosuka, JP;
Nobuo Kino, Yokohama, JP;
Yosuke Fukuyama, Yokosuka, JP;
Atsushi Miyazawa, Kamakura, JP;
Motoki Yaginuma, Yokohama, JP;
Motoharu Obika, Yokohama, JP;
Koshi Takata, Yokosuka, JP;
Nobuo Kino, Yokohama, JP;
Yosuke Fukuyama, Yokosuka, JP;
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Abstract
A cell of a fuel cell includes a membrane electrode assembly, and metal first and second separators which sandwich the membrane electrode assembly to form gas flow paths disposed on each side of the membrane electrode assembly. A back surface of the first separator and a back surface of the second separator, the first separator and the second separator being included in adjacent cells, are in contact with each other, thereby forming a temperature-control medium flow path between the first separator and the second separator. In the first separator and the second separator, corrosion-resistant coating layers are provided only on reaction-side surfaces of the first separator and the second separator, the reaction-side surfaces facing the membrane electrode assembly, and portions where the back surface of the first separator is in contact with the back surface of the second separator are joined by welded portions.