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Non Oriented Electromagnetic Steel Sheet And Manufacturing Method Therefor
Abstract: This non-oriented electromagnetic steel sheet contains a predetermined chemical composition and has a tensile strength of at least 580 MPa, wherein: the average crystal grain diameter of ferrite in a recrystallization part is at most 50 µm; and in inclusions contained in the ferrite and having an equivalent circle diameter of at least 1 µm and a S content of at least 5 mass%, the number of inclusions having a Mg content of greater than 5 mass% and a Mn content of at least 5 mass% is at least 5 times the number of inclusions having a Mg content of at most 5 mass% and a Mn content of at least 5 mass%.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
18 September 2023
Publication Number
37/2024
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. NATORI Yoshiaki
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
2. YASHIKI Hiroyoshi
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
3. FUKUCHI Minako
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 | 202317062587-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [18-09-2023(online)].pdf | 2023-09-18 |
| 2 | 202317062587-STATEMENT OF UNDERTAKING (FORM 3) [18-09-2023(online)].pdf | 2023-09-18 |
| 3 | 202317062587-REQUEST FOR EXAMINATION (FORM-18) [18-09-2023(online)].pdf | 2023-09-18 |
| 4 | 202317062587-PROOF OF RIGHT [18-09-2023(online)].pdf | 2023-09-18 |
| 5 | 202317062587-PRIORITY DOCUMENTS [18-09-2023(online)].pdf | 2023-09-18 |
| 6 | 202317062587-POWER OF AUTHORITY [18-09-2023(online)].pdf | 2023-09-18 |
| 7 | 202317062587-FORM 18 [18-09-2023(online)].pdf | 2023-09-18 |
| 8 | 202317062587-FORM 1 [18-09-2023(online)].pdf | 2023-09-18 |
| 9 | 202317062587-DECLARATION OF INVENTORSHIP (FORM 5) [18-09-2023(online)].pdf | 2023-09-18 |
| 10 | 202317062587-COMPLETE SPECIFICATION [18-09-2023(online)].pdf | 2023-09-18 |
| 11 | 202317062587-FORM 3 [15-02-2024(online)].pdf | 2024-02-15 |