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:
May. 28, 2019
Filed:
Apr. 17, 2013
Mineo Asano, Tokyo, JP;
Yusuke Yamamoto, Tokyo, JP;
Mineo Asano, Tokyo, JP;
Yusuke Yamamoto, Tokyo, JP;
SUMITOMO LIGHT METAL INDUSTRIES, LTD., Minato-ku, Tokyo, JP;
Abstract
An aluminum alloy sheet that exhibits excellent surface quality after anodizing, includes a peritectic element that undergoes a peritectic reaction with at least aluminum, and requires an anodic oxide coating is characterized in that the concentration of the peritectic element in a solid-solution state that is present in the outermost surface area of the aluminum alloy sheet varies in the widthwise direction of the aluminum alloy sheet in the form of a band having a width of 0.05 mm or less, and the difference in the concentration of the peritectic element between adjacent bands is 0.008 mass % or less.