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:
Nov. 03, 2026
Filed:
Aug. 30, 2021
Ngk Insulators, Ltd., Nagoya, JP;
Ryo Onishi, Iwakura, JP;
Yusuke Watanabe, Nagoya, JP;
Yasuhide Kojima, Nagoya, JP;
Takashi Hino, Kasugai, JP;
NGK INSULATORS, LTD., Nagoya, JP;
Abstract
A sensor element includes a porous leading-end protective layer disposed around an outer periphery of an element base in a predetermined range from an end portion on a side where a sensing part is disposed, the protective layer includes: a first layer disposed on two main surfaces of the element base; a second layer disposed to cover the end portion and four side surfaces of the element base including the two main surfaces on which the first layer is disposed; and a layer disposed to cover the second layer, the second layer has a porosity of 30% to 70% and a thickness of 6 to 30 times a thickness of the first layer, and the third layer has a porosity of 10% to 40% and a thickness of 2 to 15 times the thickness of the first layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile