Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11407479 | Jet propulsion watercraft | Susumu Shibayama, Yoshinori Yagi | 2022-08-09 |
| 11072395 | Watercraft and guide | Susumu Shibayama, Takahiro Fujimoto | 2021-07-27 |
| 10625839 | Boat and boat maneuvering system | Susumu Shibayama | 2020-04-21 |
| 10040532 | Boat and boat maneuvering system | Susumu Shibayama | 2018-08-07 |
| 8517782 | Marine vessel propulsion device and marine vessel including the same | — | 2013-08-27 |
| 8206191 | Water jet propulsion watercraft | Hideyoshi SATO | 2012-06-26 |