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. 26, 2023
Filed:
Mar. 18, 2021
Applicant:
Ngk Insulators, Ltd., Aichi, JP;
Inventors:
Yusuke Watanabe, Nagoya, JP;
Shotaro Niizuma, Kasugai, JP;
Assignee:
NGK INSULATORS, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/04 (2006.01); G01N 27/406 (2006.01); G01N 27/41 (2006.01); G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
G01N 27/41 (2013.01); G01N 27/4062 (2013.01); G01N 33/0037 (2013.01);
Abstract
A sensor element includes a first pump cell including a first pump electrode and a first reference electrode, a first pump circuit including the first pump cell and a first reference electrode lead, a second pump cell including a second pump electrode and a second reference electrode and a second pump circuit including the second pump cell and a second pump electrode. A resistance value Rof the second pump circuit is higher than a resistance value Rof the first pump circuit, and a porosity Pof the second reference electrode lead is higher than a porosity Pof the first reference electrode lead.