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Grain Oriented Electrical Steel Sheet And Formation Method For Insulating Coating Film
Abstract: This grain-oriented electrical steel sheet includes a parent material steel sheet and an insulating coating film that is formed on the surface of the parent material steel sheet. The insulating coating film includes an intermediate layer that is formed on the parent material steel sheet side and includes amorphous iron phosphate and a tension coating film layer that is formed on the surface side of the insulating coating film. The average thickness of the intermediate layer is 0.10–3.0 µm, and the tension coating film layer includes a metal phosphate and silica, the silica content of the tension coating film layer being 20–60 mass%.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
20 September 2024
Publication Number
03/2025
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. TAKEDA Kazutoshi
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
2. KATAOKA Takashi
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
3. TAKATANI Shinsuke
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
5. KUNITA Yuki
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202417071292-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [20-09-2024(online)].pdf | 2024-09-20 |
| 2 | 202417071292-STATEMENT OF UNDERTAKING (FORM 3) [20-09-2024(online)].pdf | 2024-09-20 |
| 3 | 202417071292-REQUEST FOR EXAMINATION (FORM-18) [20-09-2024(online)].pdf | 2024-09-20 |
| 4 | 202417071292-PROOF OF RIGHT [20-09-2024(online)].pdf | 2024-09-20 |
| 5 | 202417071292-PRIORITY DOCUMENTS [20-09-2024(online)].pdf | 2024-09-20 |
| 6 | 202417071292-POWER OF AUTHORITY [20-09-2024(online)].pdf | 2024-09-20 |
| 7 | 202417071292-FORM 18 [20-09-2024(online)].pdf | 2024-09-20 |
| 8 | 202417071292-FORM 1 [20-09-2024(online)].pdf | 2024-09-20 |
| 9 | 202417071292-DRAWINGS [20-09-2024(online)].pdf | 2024-09-20 |
| 10 | 202417071292-DECLARATION OF INVENTORSHIP (FORM 5) [20-09-2024(online)].pdf | 2024-09-20 |
| 11 | 202417071292-COMPLETE SPECIFICATION [20-09-2024(online)].pdf | 2024-09-20 |
| 12 | 202417071292-FORM 3 [07-02-2025(online)].pdf | 2025-02-07 |