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. 18, 1986
Filed:
Sep. 26, 1984
Applicant:
Inventors:
Sakaki Hirokazu, Shizuoka, JP;
Kazushige Takizawa, Shizuoka, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25F / ;
U.S. Cl.
CPC ...
204 33 ; 20412943 ; 20412975 ;
Abstract
A process for producing an aluminum support for a lithographic printing plate is described, comprising a step of electrolytically graining the surface of an aluminum plate in an aqueous solution of electrolyte comprising hydrochloric acid and nitric acid in a ratio by weight from 1/1 to 1/3.5 by applying an electric current having an asymmetrical alternating wave form.