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:
Dec. 04, 2012
Filed:
Jul. 10, 2008
Applicants:
Hajime Hasegawa, Toyota, JP;
Yusuke Watanabe, Toyota, JP;
Inventors:
Hajime Hasegawa, Toyota, JP;
Yusuke Watanabe, Toyota, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aich-ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
C25D 5/36 (2006.01); B08B 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The method of surface treatment, as applied onto a metal base material, of the present invention includes a reduction treatment step of reduction-treating the oxide film formed on the metal base material and an oxidation treatment step of oxidation-treating the oxide film having been subjected to the reduction treatment.