Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6355870 | Apparatus and method for reproduction of tune data | Shigehiko Mizuno | 2002-03-12 |
| 6352432 | Karaoke apparatus | Kanehisa Tsurumi, Satoshi Tachibana | 2002-03-05 |
| 6346666 | Apparatus and method for practice and evaluation of musical performance of chords | Masahiko Wakita | 2002-02-12 |