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. 09, 2008
Filed:
Nov. 18, 2004
Applicants:
Eiichi Yasumoto, Kyoto, JP;
Shinichi Arisaka, Osaka, JP;
Osamu Sakai, Osaka, JP;
Hideo Kasahara, Osaka, JP;
Shigeyuki Unoki, Osaka, JP;
Inventors:
Eiichi Yasumoto, Kyoto, JP;
Shinichi Arisaka, Osaka, JP;
Osamu Sakai, Osaka, JP;
Hideo Kasahara, Osaka, JP;
Shigeyuki Unoki, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01); H01M 8/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
There are provided measuring units of measuring the amount of fluoride ions in the waste material from a fuel cell which receives a fuel gas and an oxidizing agent gas containing oxygen to undergo electrochemical reaction by which electricity is generated and a life predicting unit of predicting the life of the fuel cell by the use of the amount of fluoride ions thus measured.