Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8338688 | Electronic keyboard instrument | — | 2012-12-25 |
| 8039725 | Electronic keyboard instrument | Takashi Kato, Takashi Fujita, Hideki Ishihara, Akito Oba | 2011-10-18 |
| 7968788 | Electronic keyboard instrument | Hideki Ishihara, Takashi Kato, Takashi Fujita | 2011-06-28 |
| 7897856 | Casing structure of electronic musical instrument | — | 2011-03-01 |