Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6843003 | Gravel-like material removing device | — | 2005-01-18 |
| 6698916 | Underwater agitation pump | — | 2004-03-02 |
| 4728256 | Underwater pump | — | 1988-03-01 |
| 4605497 | Device for processing fluid with solid bodies | Shigeharu Suzuki | 1986-08-12 |
| 4460181 | Method and mechanism for controlling the pressure at shaft-sealing part of an apparatus | — | 1984-07-17 |
| 4456424 | Underwater sand pump | — | 1984-06-26 |