Ngk Insulators, Inc.

Ngk Spark Plug Company, Limited

Yuichi Murakami

Honda Motor Co., Ltd.

Atsushi Satsuma

Takafumi Oshima

Noboru Ishida

Hitoshi Yokoi

Ryuji Inoue

Satoshi Sugaya

Kenji Dosaka

Shiro Kakimoto

Shinya Ishimaru

Tadashi Hattori

Katsuhiro Tokura

Hiroyuki Nishiyama

Koichi Imaeda

Takayuki Mori

Hideaki Muramatsu

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.

Ammonia sensor

Process for removing nitrous oxide (N.sub.2 O)

Growing community of inventors

Aichi, Japan

Atsushi Satsuma