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:
Jul. 22, 1997
Filed:
Jul. 12, 1995
Applicant:
Inventors:
Takayuki Urakawa, Kawasaki-ku, JP;
Hideharu Koga, Kawasaki-ku, JP;
Toru Imokawa, Kawasaki-ku, JP;
Toyofumi Watanabe, Kawasaki-ku, JP;
Assignee:
NKK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428648 ; 428658 ;
Abstract
A zinc-electroplated steel sheet comprises a steel sheet; a tin layer which is formed on the steel sheet, the tin layer having a deposition amount of 0.5 mg/m.sup.2 to less than 10 mg/m.sup.2 ; and a zinc-electroplating layer which is formed on the tin layer. A method for producing a zinc-electroplated steel sheet comprising the steps of: pickling a steel sheet with a pickling solution so as to deposit a tin of an amount of 0.5 mg/m.sup.2 to less than 10 mg/m.sup.2 on the steel sheet; and zinc-electroplating the pickled steel sheet.