Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10816935 | Motor driving apparatus, motor control method, and timepiece | — | 2020-10-27 |
| 10666080 | Cell type power supply device having wireless communication function | Kazuhiro Koyama, Akihiro Okabe | 2020-05-26 |