Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8834596 | Method for pretreating sintering material | Takeshi Imai, Akira Gushima, Tsuneo Ikeda | 2014-09-16 |
| 5840131 | Process for producing grain-oriented electrical steel sheet having excellent glass film and magnetic properties | Hotaka Honma, Maremizu Ishibashi, Akira Sakaida, Tomoji Kumano, Koji Yamasaki +2 more | 1998-11-24 |
| 4979996 | Process for preparation of grain-oriented electrical steel sheet comprising a nitriding treatment | Hisashi Kobayashi, Katsuro Kuroki, Masayoshi Minakuchi | 1990-12-25 |
| 4888066 | Method for producing grain-oriented electrical steel sheet with very high magnetic flux density | Yasunari Yoshitomi, Kenzo Iwayama, Takeo Nagashima | 1989-12-19 |