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. 01, 2005
Filed:
Mar. 05, 2003
Applicants:
Eriko Toshimitsu, Kanagawa, JP;
Hideaki Okamoto, Kanagawa, JP;
Inventors:
Eriko Toshimitsu, Kanagawa, JP;
Hideaki Okamoto, Kanagawa, JP;
Assignee:
Lastra S.p.A., Manerbio, IT;
Primary Examiner:
Int. Cl.
CPC ...
G03F007/26 ; G03F007/40 ;
U.S. Cl.
CPC ...
Abstract
A method for treating a photosensitive lithographic printing plate, which comprises exposing the photosensitive lithographic printing plate to laser light, developing with a developer containing an alkali metal silicate and then carrying out post-exposure treatment, said photosensitive lithographic printing plate being prepared by forming a photopolymerizable photosensitive layer having a film thickness of from 1.2 to 4 g/mand further forming a protective layer having a film thickness of from 2 to 8 g/mon a support having a centerline average height (Ra) of at least 0.35 μm.