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:
Jan. 17, 2023
Filed:
Nov. 17, 2016
Nippon Steel Corporation, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A coated steel sheet has a coating film on at least one side of a plated steel sheet. The coating film contains a binder resin, non-oxide ceramic particles containing V (excluding VC particles), and doped zinc oxide particles. The respective contents of the non-oxide ceramic particles containing V and the doped zinc oxide particles relative to the coating film satisfy the expressions: [(1) C≥10.0, (2) C≤0.5·C, (3) C≤70−C, (4) C≥0.125·C, and (5) C≥2.0], where Crepresents the content (mass %) of the non-oxide ceramic particles containing V, and Crepresents the content (mass %) of the doped zinc oxide particles. The coated steel sheet is excellent in both corrosion resistance before electrodeposition coating, and weldability.