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:
May. 07, 2002
Filed:
Aug. 23, 1999
Toshiyuki Kambe, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A substrate having a pyroelectric effect has an optical waveguide formed in it, and the optical waveguide is provided with a buffer layer , a low resistance film and an electrode on it. The resistance value of the low resistance film is made as small as possible or is set at a value determined according to the capacitances of the buffer layer and the optical waveguide . The width of a part where the low resistance film is in contact with the substrate and the thickness of the substrate also are set at a specified value. Furthermore, the specific heat and the thermal capacity of a package for housing this light control device also are set at specified values.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile