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:
Mar. 01, 2011
Filed:
Feb. 03, 2006
Applicants:
Tetsuya Nagashima, Tokyo, JP;
Manabu Dohi, Tokyo, JP;
Yoshimi Kawabata, Tokyo, JP;
Yasuo Ohmori, Tokyo, JP;
Inventors:
Tetsuya Nagashima, Tokyo, JP;
Manabu Dohi, Tokyo, JP;
Yoshimi Kawabata, Tokyo, JP;
Yasuo Ohmori, Tokyo, JP;
Assignee:
Hochiki Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01K 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
To provide a heat detector in which thermal responsiveness of a heat detecting unit such as a ceramic element is improved. A heat detectorincludes a ceramic elementaccommodated in a sensing-device main body, and measures a temperature in a monitoring area based on a dielectric constant of the ceramic element. The Curie point temperature of the ceramic elementis set in a predetermined sensitive temperature range.