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Insulation Coating Treatment Liquid For Grain Oriented Electrical Steel Sheet, Method For Producing Same, And Method For Producing Grain Oriented Electrical Steel Sheet
Abstract: This insulating film processing liquid for grain-oriented electrical steel sheets contains colloidal silica and a phosphoric acid metal salt of at least one metal selected from K, Al, Fe, Mg, Mn, Ni, Zn, Co, Mo, V, W, and Zr. In the insulating film processing liquid, the K2O/SiO2 ratio of the K amount expressed as K2O and the Si amount expressed as SiO2 is 0.5-10% in mass%.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
08 October 2025
Publication Number
46/2025
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. TAKATANI, Shinsuke
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
2. TAKEDA, Kazutoshi
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
3. SHIBAYAMA, Atsushi
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202517097087-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [08-10-2025(online)].pdf | 2025-10-08 |
| 2 | 202517097087-STATEMENT OF UNDERTAKING (FORM 3) [08-10-2025(online)].pdf | 2025-10-08 |
| 3 | 202517097087-REQUEST FOR EXAMINATION (FORM-18) [08-10-2025(online)].pdf | 2025-10-08 |
| 4 | 202517097087-PROOF OF RIGHT [08-10-2025(online)].pdf | 2025-10-08 |
| 5 | 202517097087-PRIORITY DOCUMENTS [08-10-2025(online)].pdf | 2025-10-08 |
| 6 | 202517097087-POWER OF AUTHORITY [08-10-2025(online)].pdf | 2025-10-08 |
| 7 | 202517097087-FORM 18 [08-10-2025(online)].pdf | 2025-10-08 |
| 8 | 202517097087-FORM 1 [08-10-2025(online)].pdf | 2025-10-08 |
| 9 | 202517097087-DRAWINGS [08-10-2025(online)].pdf | 2025-10-08 |
| 10 | 202517097087-DECLARATION OF INVENTORSHIP (FORM 5) [08-10-2025(online)].pdf | 2025-10-08 |
| 11 | 202517097087-COMPLETE SPECIFICATION [08-10-2025(online)].pdf | 2025-10-08 |