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:
Oct. 02, 2012
Filed:
Aug. 28, 2007
Tsutomu Okusawa, Hitachi, JP;
Masaya Kozakai, Hitachi, JP;
Hidekazu Fujimura, Mito, JP;
Ko Takahashi, Hitachi, JP;
Tsutomu Okusawa, Hitachi, JP;
Masaya Kozakai, Hitachi, JP;
Hidekazu Fujimura, Mito, JP;
Ko Takahashi, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A fuel cell according to the present invention comprises a membrane electrode assembly, a bipolar plate for guiding a reaction gas to the membrane electrode assembly, two layers of coolant flow fields formed on the bipolar plane opposite to another plane on which a reaction gas flow field is formed, and an interlayer separation plate; wherein the interlayer separation plate separates the two layers of coolant flow fields and has permeability or jet orifices so as to allow a coolant to pass through.