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:
Jul. 26, 1994
Filed:
Aug. 21, 1991
Applicant:
Inventors:
Shigeyoshi Suzuki, Nagaokakyo, JP;
Akira Furukawa, Nagaokakyo, JP;
Assignee:
Mitsubishi Paper Mills, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04F / ;
U.S. Cl.
CPC ...
430302 ; 430 48 ; 430 49 ; 430 54 ; 1014631 ;
Abstract
This invention provides a method for making a lithographic printing plate of high resolving power and high printing endurance which comprises imagewise exposing a photoreceptor having a conductive layer and a printing sheet comprising a conductive support having thereon a dielectric non-photosensitive layer which are placed opposite to each other while applying a direct voltage between said conductive layer and said conductive support by a direct current source to form a positive electrostatic latent image on said non-photosensitive layer of the printing sheet and then subjecting the image to development and fixation.