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:
Dec. 28, 1993
Filed:
Jun. 05, 1991
Sigekazu Kusanagi, Kadoma, JP;
Toru Fujioka, Kadoma, JP;
Noriyuki Yamaga, Kadoma, JP;
Yoshifumi Watabe, Kadoma, JP;
Kenji Doi, Kadoma, JP;
Takahiro Inoue, Kadoma, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
An electrochemical gas sensor includes, as disposed on an insulating substrate, a plurality of electrodes for individually sensing a standard gas present in a surrounding atmosphere at a fixed concentration and a target gas present in the surrounding atmosphere, and a signal processing circuit for determining sensor life on the basis of sensed outputs of the standard gas. Constant detection of the sensitivity characteristics of the gas sensor is thereby attained for self-examination of the life thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile