Issued Patents 2024
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12163232 | Treatment agent for chromium-free insulating coating formation, insulation-coated grain-oriented electrical steel sheet, and method for manufacturing the same | Karin Kokufu, Toshito Takamiya | 2024-12-10 |
| 12104216 | Annealing separator for grain-oriented electrical steel sheet and method of producing grain-oriented electrical steel sheet | Makoto Watanabe, Toshito Takamiya, Karin Kokufu | 2024-10-01 |
| 12104257 | Electrical steel sheet with insulating film | Karin Kokufu, Makoto Watanabe, Toshito Takamiya | 2024-10-01 |
| 12104217 | Grain-oriented electrical steel sheet and production method therefor | Makoto Watanabe, Masanori Takenaka | 2024-10-01 |
| 12033791 | Method for forming film and method for manufacturing electrical steel sheet with insulating film | Karin Kokufu, Makoto Watanabe, Toshito Takamiya | 2024-07-09 |
| 11981821 | Insulating coating treatment liquid, and grain-oriented electrical steel sheet having insulating coating and method for producing the same | Karin Kokufu, Makoto Watanabe, Toshito Takamiya | 2024-05-14 |
| 11926888 | Annealing separator for grain-oriented electrical steel sheet and method of producing grain-oriented electrical steel sheet | Makoto Watanabe, Toshito Takamiya, Karin Kokufu | 2024-03-12 |
| 11923115 | Insulating coating-attached electrical steel sheet and manufacturing method therefor | Masahiro Suemune, Karin Kokufu, Toshito Takamiya | 2024-03-05 |
| 11894167 | Grain-oriented electrical steel sheet, iron core of transformer, transformer, and method for reducing noise of transformer | Makoto Watanabe, Toshito Takamiya, Tomoyuki Okubo | 2024-02-06 |