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:
Sep. 18, 1990
Filed:
Feb. 13, 1989
Applicant:
Inventors:
Kazumasa Yamazaki, Tokai, JP;
Yaichiro Mizuyama, Tokai, JP;
Takashi Horita, Tokai, JP;
Shinichi Suzuki, Tokai, JP;
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ;
U.S. Cl.
CPC ...
204 27 ; 204 384 ; 204 40 ; 204 551 ; 204 561 ; 427406 ; 4274192 ; 428629 ; 428632 ; 428659 ;
Abstract
A zinc- or zinc alloy-coated steel sheet having an excellent spot-weldability, comprising: a base steel sheet; one or more layers coated on the steel sheet, at least one of the coated layers containing zinc as a major component; and an oxidized layer formed on the outermost of the coated layers and containing zinc in an amount of from 0.03 to 3.0 g/m.sup.2, the oxidized layer containing at least one of zinc oxide and zinc hydroxide.