Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D902988 | Tone generator for electronic musical instrument | Kensuke Shiraki, Hirotaka Koga | 2020-11-24 |
| D884782 | Electronic percussion instrument | Hirotaka Koga | 2020-05-19 |
| D881984 | Percussion detecting device | Ryohei Kanayama, Kotaro Nomura | 2020-04-21 |