Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9463856 | Ship of contrarotating propeller propulsion type | Daisuke Matsumoto, Shingen Takeda, Takashi Unseki | 2016-10-11 |
RK
Ryota Kuroiwa
Overall (All Time): #3,021,463 of 4,157,543Top 75%
1
Patents All Time