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. 19, 2004
Filed:
Oct. 09, 2002
Applicant:
Inventors:
Hidenari Matsukuma, Kanagawa-ken, JP;
Masahiko Nemoto, Kanagawa-ken, JP;
Hiroshi Shima, Kanagawa-ken, JP;
Assignee:
Hochiki Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 1/42 ;
U.S. Cl.
CPC ...
G01J 1/42 ;
Abstract
A flame detection device for detecting a flame caused by a fire, including a light attenuation filter for attenuating 90% or greater of light with wavelengths in a visible to near-infrared band radiated from the flame. The flame detection device further includes an imager for photographing an image of the attenuated light incident thereon, and a processing section for deciding the flame from the image obtained by the imager.