Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6632411 | Silicon wafer and method for producing silicon single crystal | Ryoji Hoshi, Izumi Fusegawa, Tomohiko Ohta | 2003-10-14 |
| 5833750 | Crystal pulling apparatus | Kouji Mizuishi | 1998-11-10 |
| 5096677 | Single crystal pulling apparatus | Nobuo Katsuoka, Koji Mizuishi, Shinichi Furuse | 1992-03-17 |