Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5521327 | Method and apparatus for automatically producing alterable rhythm accompaniment using conversion tables | Stephen Kay | 1996-05-28 |
| 5486647 | Chord identifying method for automatic accompaniment using keyboard instrument and automatic accompaniment function equipped keyboard instrument using the same | Stephen Kay, Athan Billias, Naoki Hashida | 1996-01-23 |