Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6244913 | Propulsion unit assembly for personal watercraft | Chihiro Matsumoto, Makoto Nagafusa | 2001-06-12 |
| 6041727 | Sponson for watercraft | Hisato Yamada, Yasukazu Kojima | 2000-03-28 |
| 5699749 | Exhaust system, hull, and speed indicator for watercraft | Hisato Yamada, Yasukazu Kojima | 1997-12-23 |
| 5390622 | Steering pole for jet propulsion boat | Hideki Kishi | 1995-02-21 |
| 5357891 | Towed watercraft | Noboru Kobayashi | 1994-10-25 |