| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Hong Kong | 9 | |
| #2 | China | 6 | |
| #3 | Republic of Korea | 6 | |
| #4 | United States | 5 | |
| #5 | EPO (European Patent Office) | 3 | |
| #6 | Taiwan | 2 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Telecommunications | |
| #3 | Audio-visual technology | |
| #4 | Computer technology | |
| #5 | Control | |
| #6 | Furniture and games | |
| #7 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Electrophonic musical instruments | |
| #2 | Selecting | |
| #3 | Electric digital data processing | |
| #4 | Transmission systems | |
| #5 | Television | |
| #6 | Special information storage | |
| #7 | Sound-producing devices | |
| #8 | Shafts | |
| #9 | Teaching materials | |
| #10 | Physical training equipment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ishikawa Masayasu | 11 |
| #2 | Koda Atsushi | 10 |
| #3 | Hataya Nagisa | 10 |
| #4 | Toyosawa Masao | 9 |
| #5 | Mino Hiroshi | 9 |
| #6 | Kenmoku Hiroe | 8 |
| #7 | Chihara Mimi | 8 |
| #8 | Mutsumi Kata | 3 |
| #9 | Yamamoto Yoshikata | 3 |
| #10 | Masayasu Ishikawa | 2 |
| Publication | Filing date | Title |
|---|---|---|
| HK1035425A1 | Karaoke system with consumed calorie announcing function | |
| KR20010026656A | Karaoke system with consumed calorie announcing function | |
| US6118064A | Karaoke system with consumed calorie announcing function | |
| US6077084A | Karaoke system and contents storage medium therefor | |
| US5900566A | Karaoke playback apparatus utilizing digital multi-channel broadcasting |