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:
Apr. 14, 2015
Filed:
Sep. 16, 2009
Applicants:
Koji Wada, Kobe, JP;
Jun Hisamoto, Kobe, JP;
Inventors:
Koji Wada, Kobe, JP;
Jun Hisamoto, Kobe, JP;
Assignee:
Kobe Steel, Ltd., Kobe-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/04 (2006.01); C25D 11/08 (2006.01); C25D 11/06 (2006.01); C25D 11/02 (2006.01);
U.S. Cl.
CPC ...
C25D 11/06 (2013.01); C25D 11/024 (2013.01);
Abstract
Provided is an anodic oxide processing method in which the generation of cracks is suppressed in an anodic oxide film formed on an aluminum alloy substrate surface, such as an inner wall of a vacuum chamber of a plasma processing device, and an anodic oxide film having low heat reflectivity and a high withstand voltage is formed with high efficiency. The method for forming an anodic oxide film involves forming the anodic oxide film on the surface of a JIS 6061 aluminum alloy substrate in a sulfuric acid solution or a mixed acid solution of sulfuric acid and oxalic acid.