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. 30, 1980
Filed:
Jul. 20, 1977
Nippondenso Co., Ltd., Aichi, JP;
Abstract
A gas composition detector, particularly an oxygen concentration detector includes a metal oxide an electrical resistance or an electromotive force of which is changed by oxygen ions which are conducted in accordance with a difference between an oxygen concentration of gas being examined and an oxygen concentration of a reference gas. A surface of the metal oxide is coated with a conductive metal electrode, and a metal which is the same as or different than the conductive metal penetrates into the metal oxide at the interface of the metal oxide and the conductive metal, whereby the tear-off of the electrode is prevented.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile