Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11372371 | Wheel train device and timepiece | Ryoichi KUNIMI | 2022-06-28 |
| 9804569 | Hand unit and timepiece | Junro Yano | 2017-10-31 |
| 8867317 | Electronic device and radio timepiece including antenna | Takashi Sano | 2014-10-21 |