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. 03, 1990
Filed:
Jun. 18, 1985
Azusa Ohashi, Shizuoka, JP;
Akira Shirai, Shizuoka, JP;
Kazushige Takizawa, Shizuoka, JP;
Shiro Terai, Aichi, JP;
Shin Tsuchida, Aichi, JP;
Yoshikatsu Hayashi, Aichi, JP;
Fuji Photo Film Co., Ltd., both of, JP;
Sumitomo Light Metal Industries, Ltd., both of, JP;
Abstract
An aluminum alloy support for a lithographic printing plate, comprising a cold rolled plate of aluminum alloy comprising, in % by weight: 98.0% or more Al; Fe in an amount of from 0.15 to 1.2% as an alloying element; and impurities, each of which is present in an amount of from 0.0% but less than or equal to 0.15%, wherein the cold rolled plate has a distribution of Al--Fe and Al--Fe--Si based intermetallic compounds formed from the alloy, having grain sizes of greater than 0 microns but less than or equal to 3 microns, which are positioned directly under an outer surface of the cold rolled plate and wherein the surface of the cold rolled plate is roughened by etching or electrochemical etching and anodically oxidized.