Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5544562 | Apparatus of a playing practice for electronic musical instrument and control method thereof | — | 1996-08-13 |
| 5166465 | Duet-sound generating method for an electronic musical instrument | Young Man LEE | 1992-11-24 |