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:
Feb. 05, 2002
Filed:
Dec. 21, 1999
Atsuo Nishino, Shizuoka, JP;
Akio Uesugi, Shizuoka, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A support made of an aluminum plate for a planographic printing plate is electrochemically roughened in an acidic aqueous solution in an electrolytic apparatus with plural cathodes and anodes arranged alternately on one side of the plate by applying a DC voltage. A soft starting zone which comprises at least one electrode connected to an electric power supply, which is separate from a main electric source, is provided. A current density of 0.01 to 100 A/dm , which is lower than the current density used in any subsequent main roughening, is provided in the soft starting zone.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile