Inventor · disambiguated record
Youji Semba
Also filed as: SEMBA YOUJI
13 granted patents·1 pending application·1,065 citations·filing 1992–2013
94Inventor score
Top patents by PatentIndex Score
14 records- 0195US5542000AKaraoke apparatus having automatic effector controlYAMAHA CORP·Filed 1994·Granted Jul 30, 1996·97 cites·12 claims
- 0295US5229756AImage control apparatusYAMAHA CORP·Filed 1992·Granted Jul 20, 1993·566 cites·10 claims
- 0387US5810603AKaraoke network system with broadcasting of background picturesYAMAHA CORP·Filed 1994·Granted Sep 22, 1998·53 cites·18 claims
- 0487US5654516AKaraoke system having a playback source with pre-stored data and a music synthesizing source with rewriteable dataYAMAHA CORP·Filed 1996·Granted Aug 5, 1997·93 cites·19 claims
- 0586US5974387AAudio recompression from higher rates for karaoke, video games, and other applicationsYAMAHA CORP·Filed 1997·Granted Oct 26, 1999·77 cites·17 claims
- 0683US5824934AKaraoke system including host apparatus that downloads information file based on list of necessary information filesYAMAHA CORP·Filed 1996·Granted Oct 20, 1998·65 cites·8 claims
- 0776US5410097AKaraoke apparatus with skip and repeat operation of orchestra accompanimentYAMAHA CORP·Filed 1993·Granted Apr 25, 1995·29 cites·12 claims
- 0869US5890910AMethod of managing information files in a communication karaoke apparatus and a communication karaoke apparatusYAMAHA CORP·Filed 1996·Granted Apr 6, 1999·32 cites·4 claims
- 0958US5931680AScore information display apparatusYAMAHA CORP·Filed 1996·Granted Aug 3, 1999·31 cites·18 claims
- 1055US5929359AKaraoke apparatus with concurrent start of audio and video upon requestYAMAHA CORP·Filed 1998·Granted Jul 27, 1999·17 cites·17 claims
- 1153US8064614B2Audio signal delivery management system, audio signal acquiring and transmitting apparatus, audio signal identifying and outputting apparatus, and audio signal delivering apparatusSUGII KIYOHISA·Filed 2008·Granted Nov 22, 2011·2 cites·13 claims
- 1249US10028015B2Signal processing apparatus and signal processing methodYAMAHA CORP·Filed 2013·Granted Jul 17, 2018·0 cites·4 claims
- 1343US2009005893A1Contents distribution system and center unitYAMAHA CORP·Filed 2008·Application pending·0 cites
- 1433US5997308AApparatus for displaying words in a karaoke systemYAMAHA CORP·Filed 1997·Granted Dec 7, 1999·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →