Grain Oriented Electromagnetic Steel Sheet

Abstract: This grain-oriented electromagnetic steel sheet has a base steel sheet, an oxide film, and a phosphoric-acid-based coating film. The phosphoric-acid-based coating film contains a first crystalline phosphorus oxide having a crystal structure that corresponds to Fe2P2O7 and a second crystalline phosphorus oxide having a crystal structure that corresponds to Fe7 (P2O7)4. The second crystalline phosphorus oxide contains at least one selected from the group consisting of V, W, Zr, Co and Mo.

Patent Information

Application #

Filing Date

23 November 2023

Publication Number

39/2024

Publication Type

INA

Invention Field

CHEMICAL

Status

Email

Parent Application

Applicants

NIPPON STEEL CORPORATION

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

Inventors

1. USHIGAMI Yoshiyuki

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. TAKAHASHI Masaru

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

4. TAKEDA Kazutoshi

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

Specification

Documents

Application Documents

#	Name	Date
1	202317079503-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [23-11-2023(online)].pdf	2023-11-23
2	202317079503-STATEMENT OF UNDERTAKING (FORM 3) [23-11-2023(online)].pdf	2023-11-23
3	202317079503-PROOF OF RIGHT [23-11-2023(online)].pdf	2023-11-23
4	202317079503-PRIORITY DOCUMENTS [23-11-2023(online)].pdf	2023-11-23
5	202317079503-POWER OF AUTHORITY [23-11-2023(online)].pdf	2023-11-23
6	202317079503-FORM 1 [23-11-2023(online)].pdf	2023-11-23
7	202317079503-DRAWINGS [23-11-2023(online)].pdf	2023-11-23
8	202317079503-DECLARATION OF INVENTORSHIP (FORM 5) [23-11-2023(online)].pdf	2023-11-23
9	202317079503-COMPLETE SPECIFICATION [23-11-2023(online)].pdf	2023-11-23
10	202317079503-FORM 3 [09-04-2024(online)].pdf	2024-04-09
11	202317079503-FORM 18 [30-04-2025(online)].pdf	2025-04-30