Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11522247 | Battery holding device and timepiece | Sae UCHIBAYASHI, Hiroyuki Hosobuchi | 2022-12-06 |
| 11372371 | Wheel train device and timepiece | Yoshihiko ENTA | 2022-06-28 |
RK
Ryoichi KUNIMI
Overall (All Time): #1,848,873 of 4,157,543Top 45%
2
Patents All Time