Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5746268 | Continuous casting method and apparatus | Keisuke Fujisaki, Kiyoshi Wajima, Kenji Umetsu, Kenzo Sawada, Takehiko Toh +2 more | 1998-05-05 |
| 5621649 | Method for analyzing electromagnetic field | Keiji Iwata, Hosei Hirano, Kenji Umetsu | 1997-04-15 |