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:
Oct. 09, 1979
Filed:
Oct. 05, 1977
Applicant:
Inventors:
Noboru Ichinose, Yokohama, JP;
Hideo Ohkuma, Kawasaki, JP;
Takashi Takahashi, Tokyo, JP;
Masayoshi Takei, Kunitachi, JP;
Assignees:
Tokyo Shibaura Electric Co., Ltd., Kawasaki, JP;
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340634 ; 340605 ;
Abstract
A gas leak-detecting apparatus which comprises an alarm circuit; a gas-detecting circuit electrically separated from the alarm circuit and provided with a gas-sensitive element prepared from an oxide semiconductor; and a contactless coupling circuit for operating the alarm circuit by an output from the gas-detecting circuit.
Quick Actions:
Ichinose, Noboru. (1979). Gas leak-detecting apparatus (U.S. Patent No. 4170770). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4170770
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile