Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10471479 | Treatment device and exhaust switching device therefor, and exhaust switching unit and switching valve box | Toshihito MORIOKA, Toshiaki Iwabuchi, Tsutomu Kojima | 2019-11-12 |
| 6012479 | Integrated gas control device | Yoshitomo Fukushima, Kazuhisa Sato | 2000-01-11 |