Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6857919 | Impeller for marine propulsion device | Yasuhiko Henmi | 2005-02-22 |
| 6261140 | Water preclusion system for watercraft exhaust | Tatsuya Yoshida | 2001-07-17 |
TY
Tadatsugu Yamamura
Yamaha Marine: 1 patents #80 of 137Top 60%
Overall (All Time): #2,177,482 of 4,157,543Top 55%
2
Patents All Time