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:
Feb. 06, 2001
Filed:
Apr. 15, 1999
Applicant:
Inventors:
Jun Kawaguchi, Tokyo, JP;
Hiroyuki Iizuka, Tokyo, JP;
Assignee:
Nihon Parkerizing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 2/205 ;
U.S. Cl.
CPC ...
C23C 2/205 ;
Abstract
There is provided a surface treatment method of metal that can endow the surface of a metallic material with strong bonding force in a simple process regardless of the profile and the substance of the metallic material as well as a metallic material obtained by such a method. The method comprises a first step of conducting a chemical etching process accompanied by formation of a film coat on the metal surface and a second step of chemically removing the film coat formed on the metal surface in the first step. If necessary, it may further comprise a third step of forming a thin layer on the metal surface after the second step.