Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6716076 | Output shaft structure of personal watercraft | Yoshitsugu Gokan | 2004-04-06 |
| 5997373 | Jet-propelled boat | Masahiro Asai, Takeshi Wakabayashi | 1999-12-07 |
| 5988122 | Two-cycle engine | Masashi Amano, Masami Takubo | 1999-11-23 |
| 5983851 | Method for lubricating a two-cycle internal combustion engine | Takahiro Kimijima | 1999-11-16 |
| 5572960 | Two-cycle engine of the spark ignition type | Yuji Tsushima, Kenjiro Saito, Yoichi Ishibasi | 1996-11-12 |
| 5507263 | Combustion controller for a spark ignition type two-cycle engine | Ryutaro Yamazaki, Yuji Tsushima, Kenichi Noda, Yoichi Ishibashi | 1996-04-16 |