Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D933629 | Amplifier | — | 2021-10-19 |
| D903625 | Amplifier | — | 2020-12-01 |
| D718809 | Digital piano | Takenori Omachi, Mami Sato | 2014-12-02 |
| D718808 | Digital piano | — | 2014-12-02 |
| D718375 | Digital piano | Mami Sato, Takenori Omachi | 2014-11-25 |
| D668710 | Electronic keyboard | Mami Sato | 2012-10-09 |
| D589929 | Combined speaker and amplifier | Nobushiro Aiba | 2009-04-07 |
| D579914 | Combined speaker and amplifier | Nobushiro Aiba | 2008-11-04 |
| D579441 | Combined speaker and amplifier | Nobushiro Aiba | 2008-10-28 |
| D538259 | Combined speaker and amplifier | Nobushiro Aiba | 2007-03-13 |
| D520494 | Speaker | Nobushiro Aiba | 2006-05-09 |
| D510381 | Electronic keyboard instrument | Kunihiro Takei | 2005-10-04 |
| D507291 | Electronic keyboard instrument | — | 2005-07-12 |
| D499442 | Electronic keyboard instrument | — | 2004-12-07 |
| D474801 | Piano | — | 2003-05-20 |
| D419587 | Electric cello | — | 2000-01-25 |
| D411563 | Electronic keyboard musical instrument | — | 1999-06-29 |
| D369378 | Electronic piano | — | 1996-04-30 |