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:
Sep. 15, 1987
Filed:
Mar. 18, 1985
Applicant:
Inventors:
Koichi Torizuka, Nagaokakyo, JP;
Kiyoshi Futaki, Nagaokakyo, JP;
Assignee:
Mitsubishi Paper Mills, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
430204 ; 430230 ; 430234 ; 430564 ; 430415 ; 430416 ; 430955 ; 430251 ;
Abstract
Disclosed is a light-sensitive photographic element for negative type lithographic printing plates high in sensitivity and contrast which comprises a support having thereon a light-sensitive silver halide, a metal salt particle having substantially no light-sensitivity, a compound which reacts with an oxidized developing agent produced by development to release a compond which acts as a solvent or a solution physical development accelerator for said metal salt particle and physical development nuclei.