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. 05, 2009
Filed:
Jun. 04, 2004
Seiichi Otani, Tokyo, JP;
Mamoru Furusato, Tokyo, JP;
Yoshikazu Shibasaki, Tokyo, JP;
Shoei Yasuda, Tokyo, JP;
Seiichi Otani, Tokyo, JP;
Mamoru Furusato, Tokyo, JP;
Yoshikazu Shibasaki, Tokyo, JP;
Shoei Yasuda, Tokyo, JP;
Riken Keiki Co., Ltd., Tokyo, JP;
Abstract
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.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile