Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5941711 | Karaoke apparatus with a personal data reading function | Toshiya Iida, Tadashi Sugiyama | 1999-08-24 |
| 5939654 | Harmony generating apparatus and method of use for karaoke | — | 1999-08-17 |
| 5859380 | Karaoke apparatus with alternative rhythm pattern designations | — | 1999-01-12 |
| 5803747 | Karaoke apparatus and method for displaying mixture of lyric words and background scene in fade-in and fade-out manner | Takurou Sone, Shingo Kamiya, Hirokazu Kato | 1998-09-08 |