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:
Apr. 13, 2004
Filed:
May. 16, 2001
Applicant:
Inventor:
Ryuichi Kubo, Otsu, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 5/12 ;
U.S. Cl.
CPC ...
G01J 5/12 ;
Abstract
An infrared sensor is provided, which includes a substrate , a diaphragm supported by the substrate, at least one thermocouple provided with a cold junction formed on the substrate and a hot junction formed on the diaphragm, and an infrared-absorptive film formed on the diaphragm so as to cover the hot junction of the thermocouple. The area of the infrared-absorptive film is 64% to 100% of the area of the diaphragm.