Grain Oriented Electrical Steel Sheet And Method For Forming

Grain Oriented Electrical Steel Sheet And Method For Forming Intermediate Layer And Insulating Coating Included In Grainoriented Electrical Steel Sheet

Abstract: Disclosed is a grain-oriented electrical steel sheet which comprises a base steel sheet, an intermediate layer that is disposed on the surface of the base steel sheet, and an insulating coating film that is disposed on the surface of the intermediate layer, wherein the intermediate layer has an average thickness of 20 nm to 200 nm, and contains one or more elements that are selected from the group consisting of V, Mo, W and Zr, while containing phosphorus, fluorine, and one or more elements that are selected from the group consisting of nitrogen and oxygen. Also disclosed is a method for forming an intermediate layer and an insulating coating film of this grain-oriented electrical steel sheet.

Patent Information

Application #

Filing Date

26 May 2025

Publication Number

27/2025

Publication Type

INA

Invention Field

ELECTRICAL

Status

Email

Parent Application

Applicants

NIPPON STEEL CORPORATION

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

Inventors

1. TAKEDA Kazutoshi

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

2. TAKATANI Shinsuke

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

3. KATAOKA Takashi

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

4. KOGAKURA Yuuki

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku Tokyo 1008071

Specification

Documents

Application Documents

#	Name	Date
1	202517050402-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [26-05-2025(online)].pdf	2025-05-26
2	202517050402-STATEMENT OF UNDERTAKING (FORM 3) [26-05-2025(online)].pdf	2025-05-26
3	202517050402-REQUEST FOR EXAMINATION (FORM-18) [26-05-2025(online)].pdf	2025-05-26
4	202517050402-PROOF OF RIGHT [26-05-2025(online)].pdf	2025-05-26
5	202517050402-PRIORITY DOCUMENTS [26-05-2025(online)].pdf	2025-05-26
6	202517050402-POWER OF AUTHORITY [26-05-2025(online)].pdf	2025-05-26
7	202517050402-FORM 18 [26-05-2025(online)].pdf	2025-05-26
8	202517050402-FORM 1 [26-05-2025(online)].pdf	2025-05-26
9	202517050402-DRAWINGS [26-05-2025(online)].pdf	2025-05-26
10	202517050402-DECLARATION OF INVENTORSHIP (FORM 5) [26-05-2025(online)].pdf	2025-05-26
11	202517050402-COMPLETE SPECIFICATION [26-05-2025(online)].pdf	2025-05-26
12	202517050402-FORM 3 [09-10-2025(online)].pdf	2025-10-09