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:
Oct. 16, 1984
Filed:
Jan. 06, 1983
Mitsubishi Paper Mills, Ltd., Tokyo, JP;
Abstract
Disclosed is a method for making a complex layer type lithographic printing plate by forming a toner image on a printing original plate having organic electrophotographic photosensitive layer by electrophotographic process and treating non-image area other than the toner image area with an etching solution mainly composed of an alcohol solvent and/or an alkali solvent, said photosensitive layer being a complex layer type photosensitive layer which comprises a charge carrier generating layer comprising a charge carrier generating substance and a binder mainly composed of a polyamide resin soluble in alcohol solvent and a high molecular substance having compatibility with said resin and having a group soluble in alcohol solvent and/or alkali solvent and a charge carrier transport layer containing a high molecular substance having a group soluble in an etching solution mainly composed of alcohol solvent and/or alkali solvent and thereafter treating non-image area other than the toner image area with the etching solution.