Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11198917 | Method for nitriding grain-oriented electrical steel sheet | Hiroshi Matsuda, Hideyuki Takahashi, Hiroi Yamaguchi, Yasuyuki Hayakawa, Takashi Terashima | 2021-12-14 |
| 11174526 | Grain-oriented electrical steel sheet and method of manufacturing same | Tomoyuki Okubo, Hirotaka Inoue | 2021-11-16 |
| 10900113 | Method for manufacturing grain-oriented electrical steel sheet, and nitriding apparatus | Hirotaka Inoue | 2021-01-26 |