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:
Mar. 30, 1993
Filed:
Dec. 05, 1989
Applicant:
Inventors:
Shigeru Iguchi, Nagaokakyo, JP;
Kiyoshi Futaki, Nagaokakyo, JP;
Koichi Torizuka, Nagaokakyo, JP;
Shozi Oka, Nagaokakyo, JP;
Assignee:
Mitsubishi Paper Mills Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430265 ; 430945 ; 430302 ; 430365 ;
Abstract
The present invention provides a method for making a lithographic printing plate having high sensitivity and high printing endurance by scanner-exposing which comprises subjecting a photographic photosensitive material comprising a support and, provided thereon, an unfogged internal latent image type silver halide emulsion layer to scanner-exposing, subjecting the exposed photosensitive material to non-tanning development in the presence of a nucleating agent, and then subjecting the silver halide portion of the emulsion layer to an oleophilizing treatment.