Surface Treated Metal Sheet And Automobile Member

Abstract: This surface-treated metal sheet comprises a metal sheet and a coating film formed on a surface of the metal sheet and having a thickness of 0.5-5.0 µm. The coating film comprises a binder resin, doped oxide particles, and a rust-preventive pigment. The content of the doped oxide particles is 5-20 vol% with respect to the coating film. The content of the rust-preventive pigment is 20-50 vol% with respect to the coating film. The ratio of the average particle diameter (B) of the doped oxide particles to the average particle diameter (A) of the rust-preventive pigment, B/A, is 0.75-4.00.

Patent Information

Application #

Filing Date

25 September 2025

Publication Number

43/2025

Publication Type

INA

Invention Field

MECHANICAL ENGINEERING

Status

Email

Parent Application

Applicants

NIPPON STEEL CORPORATION

6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Inventors

Specification

Documents

Application Documents

#	Name	Date
1	202517092118-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [25-09-2025(online)].pdf	2025-09-25
2	202517092118-STATEMENT OF UNDERTAKING (FORM 3) [25-09-2025(online)].pdf	2025-09-25
3	202517092118-REQUEST FOR EXAMINATION (FORM-18) [25-09-2025(online)].pdf	2025-09-25
4	202517092118-PROOF OF RIGHT [25-09-2025(online)].pdf	2025-09-25
5	202517092118-POWER OF AUTHORITY [25-09-2025(online)].pdf	2025-09-25
6	202517092118-FORM 18 [25-09-2025(online)].pdf	2025-09-25
7	202517092118-FORM 1 [25-09-2025(online)].pdf	2025-09-25
8	202517092118-DRAWINGS [25-09-2025(online)].pdf	2025-09-25
9	202517092118-DECLARATION OF INVENTORSHIP (FORM 5) [25-09-2025(online)].pdf	2025-09-25
10	202517092118-COMPLETE SPECIFICATION [25-09-2025(online)].pdf	2025-09-25