Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5667584 | Method for the preparation of a single crystal of silicon with decreased crystal defects | Kiyotaka Takano, Masahiro Sakurada, Hirotoshi Yamagishi | 1997-09-16 |
| 5667588 | Single crystal pulling apparatus | Kiyataka Takano, Masanori Kimura, Koji Mizuishi, Hirotoshi Yamagishi | 1997-09-16 |