Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4413545 | Music data reading type electronic musical instrument | Eisaku Okamoto | 1983-11-08 |
| 4406203 | Automatic performance device utilizing data having various word lengths | Eisaku Okamoto | 1983-09-27 |