Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887504 | Automatic accompaniment apparatus realizing automatic accompaniment and manual performance selectable automatically | Yasunao Abe | 1989-12-19 |
| 4882964 | Percussive musical tone generator system | Ikuo Komatsu | 1989-11-28 |