Grain Oriented Electromagnetic Steel Sheet And Magnetic Domain Control

Grain Oriented Electromagnetic Steel Sheet And Magnetic Domain Control Method

Abstract: In this grain-oriented electromagnetic steel sheet, in a cross-section orthogonal to the extending direction of an irradiation mark of an energy ray and parallel to the sheet thickness direction, when a virtual line is drawn in the sheet thickness direction so as to include a position where compressive elastic stress measured by EBSD is 20 MPa or more, the degree of change in the compressive elastic stress on the virtual line is 4 MPa or less per 1 µm over the entire region in the sheet thickness direction.

Patent Information

Application #

Filing Date

07 October 2025

Publication Number

46/2025

Publication Type

INA

Invention Field

METALLURGY

Status

Email

Parent Application

Applicants

NIPPON STEEL CORPORATION

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

Inventors

1. IWAKI Masataka

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

2. TANAKA Tomohito

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

Specification

Documents

Application Documents

#	Name	Date
1	202517096391-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [07-10-2025(online)].pdf	2025-10-07
2	202517096391-STATEMENT OF UNDERTAKING (FORM 3) [07-10-2025(online)].pdf	2025-10-07
3	202517096391-REQUEST FOR EXAMINATION (FORM-18) [07-10-2025(online)].pdf	2025-10-07
4	202517096391-PROOF OF RIGHT [07-10-2025(online)].pdf	2025-10-07
5	202517096391-PRIORITY DOCUMENTS [07-10-2025(online)].pdf	2025-10-07
6	202517096391-POWER OF AUTHORITY [07-10-2025(online)].pdf	2025-10-07
7	202517096391-FORM 18 [07-10-2025(online)].pdf	2025-10-07
8	202517096391-FORM 1 [07-10-2025(online)].pdf	2025-10-07
9	202517096391-DRAWINGS [07-10-2025(online)].pdf	2025-10-07
10	202517096391-DECLARATION OF INVENTORSHIP (FORM 5) [07-10-2025(online)].pdf	2025-10-07
11	202517096391-COMPLETE SPECIFICATION [07-10-2025(online)].pdf	2025-10-07