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.

Date of Patent:
Oct. 27, 2026

Filed:

Nov. 30, 2023
Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Yusuke Watanabe, Nagoya, JP;

Junya Sugiura, Nagoya, JP;

Assignee:

NGK INSULATORS, LTD., Nagoya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/41 (2006.01); G01N 27/407 (2006.01); G01N 27/409 (2006.01); G01N 27/417 (2006.01); G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
G01N 27/41 (2013.01); G01N 27/4074 (2013.01); G01N 27/409 (2013.01); G01N 27/4175 (2013.01); G01N 33/0037 (2013.01); G01N 33/0054 (2013.01);
Abstract

A gas sensor includes a sensor element and a control unit for controlling the sensor element. The sensor element includes: a base part; a measurement-object gas flow cavity; an oxygen pump cell including an intracavity oxygen pump electrode and an extracavity oxygen pump electrode; a reference gas chamber; and a reference electrode disposed in the reference gas chamber. The control unit includes: a concentration detecting part for detecting an oxygen concentration in a measurement-object gas based on a current value of an oxygen pump current flowing through the oxygen pump cell; and a determining and correcting part for performing correction to the current value of the oxygen pump current flowing through the oxygen pump cell when determining that an oxygen concentration detected by the concentration detecting part is different from an actual oxygen concentration in the measurement-object gas.


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Watanabe, Yusuke. (2026). Gas sensor and control method of gas sensor (U.S. Patent No. 12774981). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12774981

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