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:
Mar. 30, 2021
Filed:
Mar. 11, 2019
Applicant:
Ngk Spark Plug Co., Ltd., Nagoya, JP;
Inventors:
Yoshihiro Nakano, Komaki, JP;
Tetsuo Yamada, Komaki, JP;
Assignee:
NGK SPARK PLUG CO., LTD., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/404 (2006.01); G01N 33/00 (2006.01); G01N 27/419 (2006.01); F01N 11/00 (2006.01); F01N 3/20 (2006.01); G01N 27/407 (2006.01);
U.S. Cl.
CPC ...
G01N 33/0054 (2013.01); F01N 3/2066 (2013.01); F01N 11/007 (2013.01); G01N 27/4045 (2013.01); G01N 27/4075 (2013.01); G01N 27/419 (2013.01); G01N 33/0037 (2013.01); F01N 2560/021 (2013.01); F01N 2560/026 (2013.01); F01N 2610/02 (2013.01);
Abstract
Disclosed is an ammonia sensor element for detecting ammonia in a gas under measurement, including two mixed-potential-type ammonia detection cells that respectively include first and second ammonia detection electrodes. The first ammonia detection electrode has a metal composition containing Au as a predominant component. The second ammonia detection electrode has a metal composition containing Au as a predominant component. The metal compositions of the first and second ammonia detection electrodes are different from each other.