Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5678989 | Heat treatment method using a vertical processing tube | — | 1997-10-21 |
| 5662469 | Heat treatment method | Yasushi Yagi, Satoshi Kawachi | 1997-09-02 |
| 5651670 | Heat treatment method and apparatus thereof | Yasushi Yagi, Satoshi Kawachi | 1997-07-29 |
| 5592581 | Heat treatment apparatus | — | 1997-01-07 |