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Coating Liquid, Method For Producing Coating Liquid, And Method For Producing Directional Electromagnetic Steel Sheet
Abstract: The present invention provides a coating liquid for forming an insulating coating used in a directional electromagnetic steel sheet, the coating liquid being characterized in containing aluminum hydroxide particles and boric acid, the specific surface area of the aluminum hydroxide particles being 20 m2/g or above, and the pH value being 5.5 or above. The present invention also provides a method for producing a coating liquid for forming an insulating coating used in a directional electromagnetic steel sheet. The present invention also provides a method for producing a directional electromagnetic steel sheet in which the coating liquid is used.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
01 April 2025
Publication Number
21/2025
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. TAKAHASHI Masaru
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
2. YAMAZAKI Shuichi
c/o NIPPON STEEL TECHNOLOGY Co., Ltd., 1-7-1, Yurakucho, Chiyoda-ku, Tokyo
1000006
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202517032273-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [01-04-2025(online)].pdf | 2025-04-01 |
| 2 | 202517032273-STATEMENT OF UNDERTAKING (FORM 3) [01-04-2025(online)].pdf | 2025-04-01 |
| 3 | 202517032273-REQUEST FOR EXAMINATION (FORM-18) [01-04-2025(online)].pdf | 2025-04-01 |
| 4 | 202517032273-PROOF OF RIGHT [01-04-2025(online)].pdf | 2025-04-01 |
| 5 | 202517032273-PRIORITY DOCUMENTS [01-04-2025(online)].pdf | 2025-04-01 |
| 6 | 202517032273-POWER OF AUTHORITY [01-04-2025(online)].pdf | 2025-04-01 |
| 7 | 202517032273-FORM 18 [01-04-2025(online)].pdf | 2025-04-01 |
| 8 | 202517032273-FORM 1 [01-04-2025(online)].pdf | 2025-04-01 |
| 9 | 202517032273-DECLARATION OF INVENTORSHIP (FORM 5) [01-04-2025(online)].pdf | 2025-04-01 |
| 10 | 202517032273-COMPLETE SPECIFICATION [01-04-2025(online)].pdf | 2025-04-01 |
| 11 | 202517032273-FORM 3 [25-08-2025(online)].pdf | 2025-08-25 |