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:
Sep. 03, 2002
Filed:
Sep. 22, 1999
Applicant:
Inventors:
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 3/26 ;
U.S. Cl.
CPC ...
B32B 3/26 ;
Abstract
Aluminum alloy comprising an anodic oxidation coating and a ceramic coating formed on a surface of the anodic oxidation coating, wherein the anodic oxidation coating contains one or more elements selected from the group consisting of C, N, P, F, B and S at a content of each element in an amount of 0.1 mass % or more, and wherein the ceramic coating comprises one or more selected from the group consisting of oxide, nitride, carbonitride, boride and silicide, wherein when the anodic oxidation coating contains S only, the surface of the aluminum alloy or of the anodic oxidation coating has an average roughness Ra of 0.3 &mgr;m or more.