Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6183324 | Exhaust system for engine powering a watercraft | — | 2001-02-06 |
| 6158368 | Fuel delivery for small planing watercraft | — | 2000-12-12 |
| 6132274 | Watercraft engine | — | 2000-10-17 |
| 6089932 | Small watercraft | Toshiyuki Hattori | 2000-07-18 |
| 6062922 | Watercraft propulsion system | — | 2000-05-16 |
| 6062179 | Fuel-increasing system for an engine | Yoshihiro Gohara, Hiroaki Fujimoto | 2000-05-16 |
| 6017255 | Exhaust system for engine powering a watercraft | — | 2000-01-25 |
| 6015320 | Oil cooler for watercraft | — | 2000-01-18 |
| 5984740 | Watercraft propulsion system | Kenji Ikeda | 1999-11-16 |
| 5951343 | Engine lubricating system for watercraft | Toshiyuki Hattori | 1999-09-14 |
| 5902158 | Small watercraft | Ryoichi Nakase, Naoki Katoh, Shigeyuki Ozawa | 1999-05-11 |
| 5885121 | Cooling system for watercraft engine | Toshiyuki Hattori | 1999-03-23 |
| 5853308 | Engine and exhaust system for watercraft | Ryoichi Nakase, Tetsuya Mashiko | 1998-12-29 |
| 5839930 | Engine lubricating system for watercraft | Toshiyuki Hattori | 1998-11-24 |
| 5800222 | Twin jet drive for watercraft | — | 1998-09-01 |
| 5782214 | Exhaust timing control for a planing-type boat | Ryoichi Nakase | 1998-07-21 |
| 5749338 | Fuel-increasing system for an engine | Yoshihiro Gohara, Hiroaki Fujimoto | 1998-05-12 |
| 5683275 | Automatic trim control for jet boat | — | 1997-11-04 |
| 5647779 | Manifold and water trap system for marine engine | — | 1997-07-15 |
| 5634832 | Induction system for four-cycle watercraft engine | Ryoichi Nakase | 1997-06-03 |
| 5618213 | Twin impeller drive for jet pump | — | 1997-04-08 |
| 5558549 | Four cycle engine for watercraft | Ryoichi Nakase | 1996-09-24 |
| 5536187 | Outboard jet drive for watercraft | — | 1996-07-16 |
| 5370562 | Water injection propulsion device | — | 1994-12-06 |
| 5366401 | Exhaust cleaning system for marine propulsion engine | Atsushi Isogawa, Honda Masahiro | 1994-11-22 |