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:
May. 31, 2011
Filed:
Feb. 08, 2006
Yukinobu Nagao, Aichi, JP;
Masaki Nakagawa, Aichi, JP;
Takeshi Kawai, Aichi, JP;
Ryohei Aoki, Aichi, JP;
Satoshi Teramoto, Aichi, JP;
Yukinobu Nagao, Aichi, JP;
Masaki Nakagawa, Aichi, JP;
Takeshi Kawai, Aichi, JP;
Ryohei Aoki, Aichi, JP;
Satoshi Teramoto, Aichi, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A prismatic multilayer gas sensor element and method of making the same, the prismatic multilayer gas sensor element () having a substantially rectangular cross section, and including a gas-sensing cell portion () formed at a distal end portion of the prismatic gas sensor element (); and a posterior lead portion () adjoining the gas-sensing cell portion (). The longitudinal lateral surfaces of the posterior lead portion () are coated with a non-porous alumina layer (), the non-porous alumina layer () having a multilayered structure including at least a joining layer () and a surface layer (). The longitudinal lateral surface of the gas-sensing portion () is not coated with a non-porous alumina layer.