Riken Keiki Co., Ltd.

Mamoru Furusato

Seiichi Otani

Yukio Nakamura

Yoshikazu Shibasaki

Shoei Yasuda

A contact combustion-type gas sensor that can maintain its initial sensitivity over a long period of time in the presence of silicon vapor, wherein an induction portionof a gas detecting elementcontains not less than 30 percent by weight of an oxidation catalyst, and is aged in advance in an environment that contains silicon vapor serving as a poisoning substance.

Contact combustion gas sensor

A hydrogen sensorhas a fitting base platein which a gas-sensing chamberis formed, a specimen gas intakeformed on said fitting base plateopening toward an exit passageand introducing hydrogen gas into the gas-sensing chambera gas-sensing elementheld in the gas-sensing chamberand adapted to sense hydrogen gas, and a water-repelling filtercovering the specimen gas intake

Growing community of inventors

Tokyo, Japan

Mamoru Furusato