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. 02, 2003
Filed:
May. 03, 2000
Applicant:
Inventors:
Hiroshi Chizawa, Yokohama, JP;
Yasuji Ogami, Yokohama, JP;
Kazuo Saito, Glastonbury, CT (US);
Mitsushi Ueno, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04 ; H01M 8/10 ; H01M 8/24 ; H01M 4/86 ;
U.S. Cl.
CPC ...
H01M 8/04 ; H01M 8/10 ; H01M 8/24 ; H01M 4/86 ;
Abstract
A polymer electrolyte fuel cells system wherein a reacted gas that has been passed through a cell stack is enabled to be contacted with an unreacted gas to be passed through the cell stack, thereby carrying out a temperature/humidity exchange for the purpose of preventing the drying of a solid polymer electrolyte membrane. The temperature of the unreacted gas is made lower than the temperature of the reacted gas.