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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.:

US 12774980 B1

PDFFull Text
Date of Patent:
Oct. 27, 2026

Filed:

Mar. 21, 2023

Gas sensor and concentration measurement method using gas sensor

Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Yuichiro Kondo, Obu, JP;

Osamu Nakasone, Inabe, JP;

Yusuke Watanabe, Nagoya, JP;

Assignee:

NGK INSULATORS, LTD., Nagoya, JP;

Attorney:

MATTINGLY & MALUR, PC

Primary Examiner:

James Lin

Assistant Examiner:

Vivian A Tran

Int. Cl.
CPC ...
G01N 27/41 (2006.01); G01M 15/10 (2006.01); G01N 27/27 (2006.01); G01N 27/406 (2006.01); G01N 27/407 (2006.01); G01N 27/409 (2006.01); G01N 27/417 (2006.01); G01N 27/419 (2006.01); G01N 27/48 (2006.01);
U.S. Cl.
CPC ...
G01N 27/41 (2013.01); G01M 15/102 (2013.01); G01N 27/27 (2013.01); G01N 27/4065 (2013.01); G01N 27/4074 (2013.01); G01N 27/409 (2013.01); G01N 27/417 (2013.01); G01N 27/419 (2013.01); G01N 27/48 (2013.01);
Abstract

A sub adjustment pump cell pumps out oxygen from a measurement gas introduced into a sub adjustment chamber to the extent that HO and COcontained in the measurement gas are not decomposed, a first pump cell pumps out oxygen from a first chamber so that substantially all of HO and COcontained in the measurement gas introduced from the sub adjustment chamber into the first chamber are decomposed, concentrations of HO and COare identified from a pump-in current when Hand CO generated by decomposition are oxidized in the second chamber and the third chamber, and a concentration of oxygen contained in the measurement gas is identified based on a magnitude of a current flowing between a sub adjustment inner electrode and an outer electrode at the time when the sub adjustment pump cell pumps out oxygen from the sub adjustment chamber.

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Quick Actions:

Kondo, Yuichiro. (2026). Gas sensor and concentration measurement method using gas sensor (U.S. Patent No. 12774980). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12774980

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