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:
Feb. 22, 2022
Filed:
Mar. 26, 2019
Applicant:
Ngk Spark Plug Co., Ltd., Nagoya, JP;
Inventors:
Assignee:
NGK SPARK PLUG CO., LTD., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/406 (2006.01); F01N 3/20 (2006.01); G01N 33/00 (2006.01); G01N 27/407 (2006.01);
U.S. Cl.
CPC ...
G01N 27/4067 (2013.01); F01N 3/208 (2013.01); G01N 27/4076 (2013.01); G01N 27/4077 (2013.01); G01N 33/0037 (2013.01); G01N 33/0054 (2013.01); G01N 33/0073 (2013.01); F01N 2560/021 (2013.01); F01N 2560/026 (2013.01); F01N 2570/16 (2013.01); F01N 2570/18 (2013.01);
Abstract
Disclosed is a gas sensor element having an electrode containing a first metal as a predominant component and a lead containing a second metal as a predominant component. The electrode and the lead are connected directly at a connection boundary thereof, or connected indirectly via a connection joint. The connection boundary or joint includes a component region where either one of the first and second metals lower in specific gravity than the other of the first and second metals is contained in an amount ranging between those in the electrode and the lead.