Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5773743 | Effect control method, an effect control device and a karaoke system using such method and device | Sachio Ogawa, Atsushi Kitahara | 1998-06-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5773743 | Effect control method, an effect control device and a karaoke system using such method and device | Sachio Ogawa, Atsushi Kitahara | 1998-06-30 |