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:
Jan. 08, 1991
Filed:
Apr. 14, 1989
Applicant:
Inventors:
Toshimasa Nakayama, Hiratsuka, JP;
Hidekatsu Kohara, Chigasaki, JP;
Naoki Aoyanagi, Samukawa, JP;
Daisuke Hayashi, Tokyo, JP;
Assignee:
Tokyo Ohka Kogyo Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350317 ; 350311 ;
Abstract
A dyeing resistant insulation film for forming a color filter which exhibits no scattering between the dyed layer and the light detection portion and having high bondability with the dyed layer can be provided by utilizing a copolymer of glycidyl methacrylate and methyl methacrylate. A color filter of extremely high quality can be prepared by using this dyeing resistant insulation film for forming the color filter.
Nakayama, Toshimasa. (1991). Dyeing resistant insulation film of high quality for a color filter for (U.S. Patent No. 4983020). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4983020
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile