Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5066399 | Belt press type dehydration device | Kazutoyo Sugihara | 1991-11-19 |
| 4743379 | Flotation device | Kazutoyo Sugihara | 1988-05-10 |
| 4738783 | Flotation cyclone device | Kazutoyo Sugihara | 1988-04-19 |