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:
Jun. 04, 2002
Filed:
Dec. 11, 2000
Applicant:
Inventors:
Hiroyuki Yagyu, Hirakata, JP;
Tomoaki Matsushima, Kizu-cho, JP;
Motoo Ikari, Kyoto, JP;
Yuji Takada, Kyoto, JP;
Ryo Taniguchi, Nara, JP;
Makoto Nishimura, Toyonaka, JP;
Nobuyuki Miyagawa, Takatsuki, JP;
Masato Kawashima, Osaka, JP;
Assignee:
Matsushita Electric Works, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 1/02 ; G01J 5/10 ;
U.S. Cl.
CPC ...
G01J 1/02 ; G01J 5/10 ;
Abstract
An infrared ray receiving element includes a substrate made of a pyroelectric material and having at least one cantilever portion surrounded by a slit, in which at least a part of the cantilever portion in the substrate is uniformly polarized in the same direction and the remainder in the substrate includes a portion polarized at random. At least a pair of electrodes are respectively provided on a top surface and a bottom surface of the cantilever portion.