Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9761213 | Acceleration sound generation device for vehicle | Wataru Ogose, Koji Shionome | 2017-09-12 |
| 9722558 | Acceleration information transmission device | Koji Shionome | 2017-08-01 |