Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688321 | Apparatus for producing a silicon single crystal by a float-zone method | Hirotoshi Yamagishi | 1997-11-18 |
| 5667588 | Single crystal pulling apparatus | Eiichi Iino, Kiyataka Takano, Koji Mizuishi, Hirotoshi Yamagishi | 1997-09-16 |
| 5646796 | Apparatus and method for recording and reproducing topic data with digital video and audio data | Masaki Oguro | 1997-07-08 |