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. 08, 1992
Filed:
Jan. 09, 1991
Applicant:
Inventors:
Luc H Leenders, Herentals, BE;
Rudolf Van den Bergh, Herenthout, BE;
Marcel J Monbaliu, Mortsel, BE;
Paul R Callant, Edegem, BE;
Assignee:
Agfa-Gevaert, N.V., Mortsel, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
430495 ; 430944 ; 430945 ; 430270 ; 3461351 ;
Abstract
A recording material suited for forming a direct-read-after-write image by laser beam radiation, which recording material contains in a recording layer a naphthoquinonimine dye either or not in admixture with a hydrophobic polymer, characterized in that said naphthoquinonimine dye is present in the recording layer in microcrystalline state having a particle size in the range of 0.01 to 0.1 micron hereby showing an absorption maximum situated in the 800 to 880 nm wavelength range, the weight ratio of said dye to said polymer being in the range from 1/99 to 100/0.