Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12315481 | Keyboard instrument | Shingo FUKUSHIMA, Kouji OSHIMA, Naoto IMAMURA, Yuuki NAKAJIMA, Ryohei KOBAYASHI | 2025-05-27 |
| 11694664 | Keyboard musical instrument | Ryohei KOBAYASHI, Kouji OSHIMA, Yuuki NAKAJIMA, Naoto IMAMURA, Shingo FUKUSHIMA | 2023-07-04 |
| 11594205 | Switch device, electronic apparatus, and electronic musical instrument | Naoto IMAMURA, Kouji OSHIMA, Yuuki NAKAJIMA, Ryohei KOBAYASHI, Shingo FUKUSHIMA | 2023-02-28 |