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:
Jan. 01, 2002
Filed:
Oct. 22, 1999
Mitsui Mining and Smelting Co., Ltd., Tokyo, JP;
Abstract
A corrosion-resistant article of a magnesium material having the gloss of the metal substrate surface comprises an anodic oxide film formed on the external surface of an article of magnesium or a magnesium alloy, which never changes the gloss of the metal substrate and a colorless or colored transparent electrodeposition coating film on the anodic film. Such an article can be prepared by immersing an article of magnesium or a magnesium alloy in an electrolyte containing a phosphate and an aluminate to thus form an anodic oxide film through anodization of the surface of the article and forming a colorless or colored transparent electrodeposition coating film on the anodic film through electrodeposition coating.