Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6117231 | Method of manufacturing semiconductor silicon single crystal wafer | Izumi Fusegawa, Ryoji Hoshi, Tomohiko Ohta | 2000-09-12 |
| 5766346 | Apparatus for producing silicon single crystal | Ryouji Hoshi, Izumi Fusegawa, Tomohiko Ohta | 1998-06-16 |