Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10473184 | Dynamic vibration absorbing device and fluid coupling | Yoshihiro Kojima, Takumi Imada | 2019-11-12 |
| 10422408 | Dynamic vibration absorbing device and fluid coupling | Yoshihiro Kojima, Takumi Imada | 2019-09-24 |
| 10281002 | Dynamic vibration absorbing device and fluid coupling | Yoshihiro Kojima, Takumi Imada | 2019-05-07 |