Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4957473 | Rotational speed differential responsive type torque transmitting assembly | Takashi Okubo | 1990-09-18 |
| 4932510 | Vehicle speed responsive variable torque transmitting assembly | Takashi Ookubo | 1990-06-12 |