Issued Patents All Time
Showing 1–25 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312694 | Production method for treatment solution for forming insulating coating, production method for steel sheet having insulating coating, and production apparatus for treatment solution for forming insulating coating | Karin Kokufu, Makoto Watanabe, Toshito Takamiya | 2025-05-27 |
| 12234523 | Grain-oriented electrical steel sheet with insulating film and method for manufacturing the same | Karin Kokufu, Makoto Watanabe, Toshito Takamiya | 2025-02-25 |
| 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 |
| 12104217 | Grain-oriented electrical steel sheet and production method therefor | Makoto Watanabe, Masanori Takenaka | 2024-10-01 |
| 12104257 | Electrical steel sheet with insulating film | Karin Kokufu, Makoto Watanabe, Toshito Takamiya | 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 |
| 11781196 | Grain-oriented electromagnetic steel sheet and method of producing grain-oriented electromagnetic steel sheet | Takumi Umada, Shigehiro Takajo | 2023-10-10 |
| 11692272 | Coated metal, coating-forming treatment solution, and method for producing coated metal | Makoto Watanabe, Toshito Takamiya | 2023-07-04 |
| 11473176 | Oriented electrical steel sheet and method for producing same | Karin Kokufu, Toshito Takamiya | 2022-10-18 |
| 11326219 | Grain-oriented electromagnetic steel sheet and method for producing grain-oriented electromagnetic steel sheet | Shigehiro Takajo, Takumi Umada | 2022-05-10 |
| 11293070 | Grain-oriented electrical steel sheet | Takumi Umada, Makoto Watanabe, Toshito Takamiya | 2022-04-05 |
| 11280003 | Coated metal, coating-forming treatment solution, and method for producing coated metal | Makoto Watanabe, Toshito Takamiya | 2022-03-22 |
| 11198917 | Method for nitriding grain-oriented electrical steel sheet | Hiroshi Matsuda, Hideyuki Takahashi, Hiroi Yamaguchi, Yasuyuki Hayakawa, Yukihiro Shingaki | 2021-12-14 |
| 11180834 | Grain-oriented electrical steel sheet and production method for grain-oriented electrical steel sheet | Takumi Umada, Shigehiro Takajo | 2021-11-23 |
| 11091842 | Oriented electromagnetic steel sheet and method for manufacturing oriented electromagnetic steel sheet | Takumi Umada, Shigehiro Takajo, Minoru Takashima, Yasuyuki Hayakawa | 2021-08-17 |
| 10982329 | Insulation-coated oriented magnetic steel sheet and method for manufacturing same | Kazutoshi Hanada, Ryuichi Suehiro, Makoto Watanabe, Toshito Takamiya | 2021-04-20 |
| 10968521 | Grain-oriented electrical steel sheet and production method for grain-oriented electrical steel sheet | Takumi Umada, Shigehiro Takajo | 2021-04-06 |
| 10920323 | Insulating-coated oriented magnetic steel sheet and method for manufacturing same | Kazutoshi Hanada, Ryuichi Suehiro, Makoto Watanabe, Toshito Takamiya | 2021-02-16 |
| 10889875 | Grain oriented electrical steel sheet, method for manufacturing grain oriented electrical steel sheets, method for evaluating grain oriented electrical steel sheets, and iron core | Masayasu Nagoshi, Tomohiro Matsushima, Makoto Watanabe, Shigehiro Takajo, Toshito Takamiya +1 more | 2021-01-12 |
| 10697038 | Grain oriented electrical steel sheet, method for manufacturing grain oriented electrical steel sheets, method for evaluating grain oriented electrical steel sheets, and iron core | Masayasu Nagoshi, Tomohiro Matsushima, Makoto Watanabe, Shigehiro Takajo, Toshito Takamiya +1 more | 2020-06-30 |