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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 10816501 B1

PDFFull Text
Date of Patent:
Oct. 27, 2020

Filed:

Nov. 09, 2016

Gas sensor and method for manufacturing gas sensor

Applicant:

Ngk Insulators, Ltd., Nagoya-shi, Aichi, JP;

Inventors:

Yuki Nakayama, Nagoya, JP;

Noriko Hirata, Nagoya, JP;

Taku Okamoto, Nagoya, JP;

Osamu Nakasone, Inabe, JP;

Assignee:

NGK INSULATORS, LTD., Nagoya, JP;

Attorney:

Global IP Counselors, LLP

Primary Examiner:

Gurpreet Kaur

Assistant Examiner:

Steven E Rosenwald

Int. Cl.
CPC ...
G01N 27/407 (2006.01); G01N 33/00 (2006.01); G01N 27/30 (2006.01);
U.S. Cl.
CPC ...
G01N 27/4075 (2013.01); G01N 27/301 (2013.01); G01N 27/4074 (2013.01); G01N 33/0047 (2013.01);
Abstract

A gas sensor with excellent detection sensitivity is provided. A sensing electrode, which is provided in a mixed-potential gas sensor for measuring a concentration of a predetermined gas component of a measurement gas to sense the predetermined gas component, is formed of a cermet of a noble metal and an oxygen-ion conductive solid electrolyte. The noble metal includes Pt and Au. A range of at least 1.5 nm from a surface of a noble metal particle included in the sensing electrode is a Au enriched region having a Au concentration of 10% or more.

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Nakayama, Yuki. (2020). Gas sensor and method for manufacturing gas sensor (U.S. Patent No. 10816501). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10816501

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