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:
Dec. 20, 1988
Filed:
Sep. 04, 1986
Masaki Katsura, Yokosuka, JP;
Masayuki Shiratori, Kawasaki, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
Disclosed is a CO gas detecting device which comprises a CO gas sensor provided with a gas sensitive member made of SnO.sub.2, ZnO, Fe.sub.2 O.sub.3 or the like, a pair of electrodes provided on said gas sensitive member, and a catalyst layer comprising at least one kind of catalyst metals of Pt, Pd and Rh and at least one kind of carriers of Al.sub.2 O.sub.3, ZrO.sub.2 and SiO.sub.2, provided on said gas sensitive member; and a reference sensor substantially without sensitivity to CO gas provided with a gas sensitive member similar to the above gas sensitive member, a pair of electrodes provided on said gas sensitive member and a catalyst layer comprising Ag and at least one kind of carriers of Al.sub.2 O.sub.3, ZrO.sub.2 and SiO.sub.2, provided on said gas sensitive member. Also disclosed is a circuit for driving the device.