Issued Patents 1994
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5373805 | Single crystal pulling apparatus | Kiyotaka Takano, Hirotoshi Yamagishi | 1994-12-20 |
| 5361721 | Single crystal pulling apparatus | Kiyotaka Takano, Hirotoshi Yamagishi | 1994-11-08 |
| 5359959 | Method for pulling up semi-conductor single crystal | Hirotoshi Yamagishi | 1994-11-01 |
| 5340434 | Process for producing silicon single crystal | Kiyotaka Takano, Hirotoshi Yamagishi | 1994-08-23 |
| 5306387 | Method for pulling up semiconductor single crystal | Hirotoshi Yamagishi | 1994-04-26 |