Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9010288 | Six-stroke engine | Ei Tsukahara | 2015-04-21 |
| 8714125 | Valve gear of engine | — | 2014-05-06 |
TK
Takurou Kamichika
Overall (All Time): #2,027,205 of 4,157,543Top 50%
2
Patents All Time