Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12315481 | Keyboard instrument | Kouji OSHIMA, Naoto IMAMURA, Yuuki NAKAJIMA, Mari NAKAJIMA, Ryohei KOBAYASHI | 2025-05-27 |
| 12003918 | Electronic musical instrument and electronic keyboard instrument | Ryohei KOBAYASHI, Hiroki AKAI, Teruo Jinbo, Kouji OSHIMA | 2024-06-04 |
| 11694664 | Keyboard musical instrument | Ryohei KOBAYASHI, Kouji OSHIMA, Yuuki NAKAJIMA, Naoto IMAMURA, Mari NAKAJIMA | 2023-07-04 |
| 11594205 | Switch device, electronic apparatus, and electronic musical instrument | Naoto IMAMURA, Kouji OSHIMA, Yuuki NAKAJIMA, Mari NAKAJIMA, Ryohei KOBAYASHI | 2023-02-28 |
| 10084165 | Detachable structure of battery to be attached to case, and electronic device | Takahiro Moriya | 2018-09-25 |
| 5537325 | Apparatus for and method of manufacturing semiconductor wafer | Eiji Iwakiri, Yukitaka Takitani | 1996-07-16 |