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. 25, 2018
Filed:
Sep. 04, 2014
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
A gas sensor element () includes: a solid electrolyte body () having a bottomed tubular shape and a closed front end, and extending in the direction of an axial line O; an inside electrode () which is provided on an inner surface of the solid electrolyte body; an outside electrode () which is provided on an outer surface of the solid electrolyte body; and a porous protective layer () which covers the outside electrode, the porous protective layer has an inside region () which covers the outside electrode and an outside region () which covers the inside region and has a lower porosity than the inside region, and the outside region is formed of a sintered body of ceramic and glass.