Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8641463 | Contra-rotating propeller marine propulsion device | Hideki Shuto | 2014-02-04 |
| 8585366 | Contra-rotating propeller marine propulsion device | Hideki Shuto | 2013-11-19 |
| 8459950 | Contra-rotating propeller unit, method for assembly thereof, method for transportation thereof, and method for mounting thereof on mother ship | Hideki Shuto | 2013-06-11 |