Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5264189 | Apparatus for growing silicon crystals | Ichiro Yamashita, Koutaro Shimizu | 1993-11-23 |
| 4981549 | Method and apparatus for growing silicon crystals | Ichiro Yamashita, Koutaro Shimizu, Yasushi Shimanuki, Akira Higuchi, Hisashi Furuya | 1991-01-01 |