Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5820683 | Object-supporting boat | Katsutoshi Ishii, Isao Hagino | 1998-10-13 |
| 5556275 | Heat treatment apparatus | Kazunari Sakata, Kenji Tago | 1996-09-17 |
| 5482558 | Heat treatment boat support | Shingo Watanabe, Hironobu Nishi | 1996-01-09 |