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:
Dec. 21, 2021
Filed:
Mar. 27, 2017
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Atsushi Watanabe, Kasugai, JP;
Takashi Suzuki, Ikoma, JP;
Shuichi Ozawa, Nagoya, JP;
Hirohito Kiyota, Nagoya, JP;
Satoko Moriyama, Komaki, JP;
Shiho Iwai, Nagoya, JP;
Assignee:
NGK INSULATORS, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/407 (2006.01); G01N 27/406 (2006.01);
U.S. Cl.
CPC ...
G01N 27/4077 (2013.01); G01N 27/4074 (2013.01); G01N 27/406 (2013.01); G01N 27/4071 (2013.01);
Abstract
A sensor elementincludes an element main bodythat includes oxygen ion-conductive solid electrolyte layers (to), and a porous protective layerthat covers at least part of the element main body. The porous protective layerincludes a porous inner protective layerand a porous outer protective layerdisposed on the outer side of the inner protective layerand having a smaller average pore diameter than the inner protective layer