Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7311772 | Apparatus and method for supplying raw material in Czochralski method | Katsunori Nakashima, Koji Toma | 2007-12-25 |
| 6805746 | Method for supplying CZ material | Kenichi Takenaka | 2004-10-19 |