Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5248378 | Method and apparatus for producing silicon single crystal | Tetsuhiro Oda, Izumi Fusegawa, Hirotoshi Yamagishi, Atsushi Iwasaki, Shinobu Takeyasu +2 more | 1993-09-28 |
| 5223078 | Conical portion growth control method and apparatus | Atsushi Ozaki | 1993-06-29 |
| 5089238 | Method of forming a temperature pattern of heater and silicon single crystal growth control apparatus using the temperature pattern | Kenji Araki, Masahiko Baba | 1992-02-18 |