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Grain Oriented Electromagnetic Steel Sheet And Method For Manufacturing Same

Abstract: This grain-oriented electrical steel sheet has a steel sheet having a plurality of grooves that extend in a direction intersecting a rolling direction. The average depth in the extension direction of the plurality of grooves is 3 or greater, B8A representing the magnetic flux density is 1.795-1.975 T, and B8A, s, and d satisfy the relationship -4.0×B8A+7.80=s/d=-4.0×B8A+9.00, where d is the average of the average groove-extension-direction depth of each of the plurality of grooves in units of µm, and s is the standard deviation of the average extension-direction depth in units of µm.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
10 October 2025
Publication Number
47/2025
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. WADA Naoki
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
2. HAMAMURA Hideyuki
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
3. TAKAHASHI Masaru
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Specification

Documents

Application Documents

# Name Date
1 202517097818-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [10-10-2025(online)].pdf 2025-10-10
2 202517097818-STATEMENT OF UNDERTAKING (FORM 3) [10-10-2025(online)].pdf 2025-10-10
3 202517097818-REQUEST FOR EXAMINATION (FORM-18) [10-10-2025(online)].pdf 2025-10-10
4 202517097818-PROOF OF RIGHT [10-10-2025(online)].pdf 2025-10-10
5 202517097818-PRIORITY DOCUMENTS [10-10-2025(online)].pdf 2025-10-10
6 202517097818-POWER OF AUTHORITY [10-10-2025(online)].pdf 2025-10-10
7 202517097818-FORM 18 [10-10-2025(online)].pdf 2025-10-10
8 202517097818-FORM 1 [10-10-2025(online)].pdf 2025-10-10
9 202517097818-DRAWINGS [10-10-2025(online)].pdf 2025-10-10
10 202517097818-DECLARATION OF INVENTORSHIP (FORM 5) [10-10-2025(online)].pdf 2025-10-10
11 202517097818-COMPLETE SPECIFICATION [10-10-2025(online)].pdf 2025-10-10