Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7021890 | Turbo pump | Tomoki Yoshida | 2006-04-04 |
| 6923694 | Waterjet propelling device of boat | — | 2005-08-02 |
| 6821167 | Outboard motor | Saburo Tonomura | 2004-11-23 |
| 6786167 | Propulsion system for boats | — | 2004-09-07 |
| 6752671 | Water jet propulsion type outboard engine | Koji Ishimoto, Takahiro Goto, Kazuhisa Ishimura, Kazumitsu Oura | 2004-06-22 |
| 6645018 | Boat propulsion device | — | 2003-11-11 |
| 6634508 | Screw press | — | 2003-10-21 |
| 6615710 | Screw press apparatus | Yukitoshi Mitani | 2003-09-09 |
| 6461507 | Continuous squeeze-dewatering device | Tooru Mori, Kunio Fujita, Masayoshi Katayama, Masafumi Nasu | 2002-10-08 |
| 6283805 | Water jet propulsion type outboard motor | — | 2001-09-04 |
| 6193570 | Water jet propulsion system for watercraft | — | 2001-02-27 |
| 6183319 | Closure preventive device for water jet propulsion type outboard motor | — | 2001-02-06 |
| 6102757 | Water jet propulsion device for marine vessel | — | 2000-08-15 |
| 6086436 | Water jet propulsion device for marine vessel | — | 2000-07-11 |
| 5989083 | Water jet propulsion device for vessels | Kazumitsu Oura | 1999-11-23 |
| D408779 | Motorboat | — | 1999-04-27 |
| 5487644 | Pump having a single or a plurality of helical blades | Kazumitsu Oura, Takaharu Honda | 1996-01-30 |
| 5357855 | Screw press for dewatering a slurry | Yukitoshi Mitani | 1994-10-25 |
| 4919775 | Method and apparatus for electrolytic treatment of sludge | — | 1990-04-24 |