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. 16, 1995
Filed:
Apr. 07, 1993
Applicant:
Inventors:
Shuji Hitomi, Kyoto, JP;
Hisashi Kudo, Kyoto, JP;
Assignee:
Japan Storage Battery Company Limited, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
204415 ; 204412 ; 204431 ;
Abstract
A galvanic cell type gas sensor which utilizes the respective merits of galvanic cell type and polaro type gas sensors so that a plurality of gasses can be detected by one sensor. One working electrode is utilized in conjunction with two or more counter electrodes which are different in kind from each other. Each of the electrodes are individually selected corresponding to a type of gas to be detected. Also, drift in the measurement of one of the detected gasses can be corrected based upon the measurement of another of the detected gasses.