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:
Mar. 11, 2008
Filed:
Sep. 25, 2003
Hiroyuki Nishiyama, Aichi, JP;
Shiro Kakimoto, Aichi, JP;
Ryuji Inoue, Gifu, JP;
Hitoshi Yokoi, Aichi, JP;
Noboru Ishida, Gifu, JP;
Takafumi Oshima, Aichi, JP;
Satoshi Sugaya, Aichi, JP;
Koichi Imaeda, Aichi, JP;
Tadashi Hattori, Aichi, JP;
Atsushi Satsuma, Aichi, JP;
Hiroyuki Nishiyama, Aichi, JP;
Shiro Kakimoto, Aichi, JP;
Ryuji Inoue, Gifu, JP;
Hitoshi Yokoi, Aichi, JP;
Noboru Ishida, Gifu, JP;
Takafumi Oshima, Aichi, JP;
Satoshi Sugaya, Aichi, JP;
Koichi Imaeda, Aichi, JP;
Tadashi Hattori, Aichi, JP;
Atsushi Satsuma, Aichi, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
In an ammonia sensor (), lead portions () and () are provided on an insulating substrate (); a pair of comb-shaped electrodes () and () are connected to the lead portions () and (), respectively; a sensitive layer () is provided on the comb-shaped electrodes () and (); and a protective layer () is provided on the sensitive layer (). Particularly, the sensitive layer () is formed of a gas-sensitive raw material predominantly containing ZrOand containing at least W in an amount of 2 to 40 wt. % as reduced to WO.