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. 09, 2006
Filed:
Sep. 23, 2002
Yoshiro Noda, Gifu, JP;
Ryohei Aoki, Aichi, JP;
Yutaka Adachi, Aichi, JP;
Yoshiaki Kuroki, Aichi, JP;
Takao Kojima, Aichi, JP;
Sinya Awano, Aichi, JP;
Koichi Imaeda, Aichi, JP;
Yoshiro Noda, Gifu, JP;
Ryohei Aoki, Aichi, JP;
Yutaka Adachi, Aichi, JP;
Yoshiaki Kuroki, Aichi, JP;
Takao Kojima, Aichi, JP;
Sinya Awano, Aichi, JP;
Koichi Imaeda, Aichi, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A solid electrolyte layer or body capable of being co-fired with an insulating ceramic substrate or body to be used as a gas sensor laminate. The gas sensor laminate is preferably composed of an alumina substrate () and an oxygen-ion conductive solid electrolyte layer () bonded to the alumina substrate () by firing. The oxygen-ion conductive solid electrolyte layer or body is formed from partially or wholly stabilized zirconia, which layer contains alumina in an amount of 10% to 80% by weight, particularly 30% to 75% by weight. In this manner, another ceramic layer; particularly, a ceramic layer () of alumina can further be bonded to the oxygen-ion conductive solid electrolyte layer. The relative density of the ceramic layer can be 60% to 99.5%, preferably 80% to 99.5%.