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:
Aug. 30, 2016
Filed:
Mar. 29, 2012
Fumio Shibao, Tokyo, JP;
Taihei Kaneto, Tokyo, JP;
Masahiro Fuda, Tokyo, JP;
Yoshio Kimata, Tokyo, JP;
Fumio Shibao, Tokyo, JP;
Taihei Kaneto, Tokyo, JP;
Masahiro Fuda, Tokyo, JP;
Yoshio Kimata, Tokyo, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Abstract
A surface-treated steel sheet includes: a steel sheet; and a coated layer which is formed on one surface or both surfaces of the steel sheet and includes zinc and vanadium, wherein the coated layer has a vanadium content of 1% or higher and 20% or less and a coating weight of 3 g/mor higher and 40 g/mor less, and has a plurality of dendritic arms that are grown in a thickness direction of the steel sheet, and a ratio x/y of a content x of vanadium that is present outside the arms to a content y of vanadium that is present inside the arms is 1.1 or higher and 3.0 or less in terms of vanadium element.