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:
Dec. 07, 1999
Filed:
Dec. 01, 1997
Applicant:
Inventors:
Ram W Sabnis, Rolla, MO (US);
Terry L Brewer, Rolla, MO (US);
Robert E Nichols, Rolla, MO (US);
Edith G Hays, Rolla, MO (US);
Michael D Stroder, Springfield, MO (US);
Akira Yanagimoto, Musashino, JP;
Yasuhisa Sone, Funabashi, JP;
Yoshitane Watanabe, Tokyo, JP;
Kiyomi Ema, Chiba, JP;
Assignees:
Brewer Science, Inc., Rolla, MO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03F / ; C08K / ;
U.S. Cl.
CPC ...
4302701 ; 430-7 ; 524495 ; 524496 ; 523215 ;
Abstract
A high optical density, i.e., .gtoreq.3.0, at 1 micron or less film thickness, black matrix is disclosed having improved stability and shelf life as a consequence of admixing Pigment Black 7 and organic dye or dye mixtures on a polyimide polymer vehicle.