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:
Aug. 11, 1998
Filed:
Nov. 06, 1995
Takeo Ogihara, Iwaki, JP;
Hiroki Katono, Iwaki, JP;
Masuhiro Shouji, Iwaki, JP;
Teruo Sakagami, Iwaki, JP;
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A component optical filter and a process for production of the filter includes the steps of arranging a pair of transparent plates, at least one of which has an optical low-pass filtering function, to oppose each other with a gap therebetween and filling the gap with a monomer composition of the formula PO(OH).sub.n R.sub.3 -n wherein R is a polymerizable functional group represented by CH.sub.2 .dbd.CXCOO(C.sub.2 H.sub.4 O).sub.m- and (c) a metallic compound composed of a copper compound, and then subjecting the monomer composition to a polymerization treatment. The result is a laminated composite filter having at least one optical low-pass filter and an intermediate layer forming a luminosity factor-compensating filter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile