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. 12, 2019
Filed:
Dec. 02, 2015
Applicant:
Ngk Insulators, Ltd., Nagoya-shi, Aichi, JP;
Inventors:
Hironori Sakakibara, Kasugai, JP;
Shuichi Ozawa, Nagoya, JP;
Hiroki Fujita, Kasugai, JP;
Shinsaku Maeda, Nagoya, JP;
Assignee:
NGK INSULATORS, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/407 (2006.01); G01N 27/12 (2006.01); G01N 27/419 (2006.01); G01N 27/409 (2006.01); G01N 27/416 (2006.01);
U.S. Cl.
CPC ...
G01N 27/419 (2013.01); G01N 27/409 (2013.01); G01N 27/4075 (2013.01); G01N 27/4077 (2013.01); G01N 27/4166 (2013.01);
Abstract
A sensor element includes a sensor element main body a including an oxygen ion-conductive solid electrolyte layer and a porous protective layer covering at least part of the sensor element main body. Then, the porous protective layer has the value of the number of interfaces in a unit thickness direction, which is the number of particle interfaces of constituent particles every 100 μm in the thickness direction, of 15 or more and 250 or less.