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:
Jun. 11, 1996
Filed:
Aug. 19, 1993
Applicant:
Inventors:
Tatsuya Kanamaru, Tokai, JP;
Junichi Morita, Tokai, JP;
Katsutoshi Arai, Tokai, JP;
Shinichi Suzuki, Tokai, JP;
Assignee:
Nippon Steel Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; C23C / ; C25D / ;
U.S. Cl.
CPC ...
428623 ; 428659 ; 428632 ; 428633 ; 428658 ; 428610 ; 148263 ; 148258 ; 148262 ; 205141 ; 205155 ; 205188 ;
Abstract
A zinc-base galvanized sheet steel which comprises zinc-base plated sheet steel and, formed on the plating layer surface, an inorganic covering layer which contains at least one inorganic oxide in an amount of 1-500 mg/m.sup.2 in terms of the weight of metallic elements exclusive of oxygen and optionally contains at least one oxoacid or inorganic oxide colloid in an amount of 1-500 mg/m.sup.2 and further, as desired for improving weldability, a Zn oxide film formed between the inorganic covering layer and the zinc-base plating layer, and the process for producing said galvanized sheet steel.