Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7385129 | Music reproducing system | — | 2008-06-10 |
| 6352432 | Karaoke apparatus | Tom Jen Tsai, Satoshi Tachibana | 2002-03-05 |
| 6074215 | Online karaoke system with data distribution by broadcasting | — | 2000-06-13 |
| 5890910 | Method of managing information files in a communication karaoke apparatus and a communication karaoke apparatus | Youji Semba, Yuichi Murai | 1999-04-06 |
| 5833469 | Method of operating a karaoke network system with system program distribution and karaoke network system | Emi Ito, Yuichi Murai | 1998-11-10 |
| 5824934 | Karaoke system including host apparatus that downloads information file based on list of necessary information files | Youji Semba, Yuichi Murai | 1998-10-20 |
| 5804752 | Karaoke apparatus with individual scoring of duet singers | Takuro Sone, Hirokazu Kato, Takahiro Tanaka | 1998-09-08 |
| 5689081 | Network karaoke system of broadcast type having supplementary communication channel | — | 1997-11-18 |
| 5574949 | Multi-access local area network using a standard protocol for transmitting MIDI data using a specific data frame protocol | — | 1996-11-12 |
| 5274637 | Token-ring-type local area network | Ken Sakamura, Kazushi Tamai, Nobuharu Nakamura | 1993-12-28 |
| 5257259 | Ring-type local area network | — | 1993-10-26 |
| 5119710 | Musical tone generator | Hirokazu Kato | 1992-06-09 |