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:
Jun. 15, 1993
Filed:
Mar. 24, 1992
Applicant:
Inventors:
Hideyuki Nakai, Fussa, JP;
Kiyoshi Goto, Hachioji, JP;
Hiroshi Tomiyasu, Tama, JP;
Yoshiko Fujita, Nagoya, JP;
Assignees:
Mitsubishi Kasei Corporation, Tokyo, JP;
Konica Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03F / ; G03C / ;
U.S. Cl.
CPC ...
430191 ; 430165 ; 430192 ; 430193 ; 430194 ; 430196 ; 430280 ; 430343 ; 430916 ; 430920 ; 430925 ;
Abstract
A photosensitive composition comprising (a) a 1,2-naphthoquinone-2-diazido-4-sulfonic acid ester compound, (b) alkali-soluble resin, (c) a halomethyloxadiazole compound which releases halogen free radicals by irradiation with actinic rays and (a) a dye which interacts withthe decomposition product of said halomethyloxydiazole compound and discolors or develops color. The composition exhibits excellent development latitude, light safety, visible-on-exposure characteristic and printing resistance.