Inventor · disambiguated record
Masatada Wachi
Also filed as: WACHI MASATADA
36 granted patents·919 citations·filing 1974–2008
98Inventor score
Top patents by PatentIndex Score
36 records- 0198US5880386AMusical information processing system with automatic data transferYAMAHA CORP·Filed 1996·Granted Mar 9, 1999·333 cites·14 claims
- 0292US4554858ADigital filter for an electronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1983·Granted Nov 26, 1985·41 cites·20 claims
- 0388US4520708ATone waveshape generation deviceNIPPON MUSICAL INSTRUMENTS MFG·Filed 1984·Granted Jun 4, 1985·31 cites·4 claims
- 0487US7693746B2Musical contents storage system having server computer and electronic musical devicesYAMAHA CORP·Filed 2002·Granted Apr 6, 2010·32 cites·3 claims
- 0587US4246823AWaveshape generator for electronic musical instrumentsNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Jan 27, 1981·25 cites·16 claims
- 0686US5056400AMusical instrument with electro-acoustic transducer for generating musical toneYAMAHA CORP·Filed 1989·Granted Oct 15, 1991·42 cites·5 claims
- 0786US4213366AElectronic musical instrument of wave memory reading typeNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Jul 22, 1980·24 cites·13 claims
- 0885US4915007AParameter setting system for electronic musical instrumentYAMAHA CORP·Filed 1987·Granted Apr 10, 1990·40 cites·28 claims
- 0985US4282790AElectronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1979·Granted Aug 11, 1981·19 cites·16 claims
- 1083US3943812ATouch responsive sensor in electronic keyboard musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1974·Granted Mar 16, 1976·28 cites·11 claims
- 1182US4548119ADigital filter for an electronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1982·Granted Oct 22, 1985·22 cites·18 claims
- 1275US4703680ATruncate prioritization system for multi channel electronic music generatorNIPPON MUSICAL INSTRUMENTS MFG·Filed 1986·Granted Nov 3, 1987·27 cites·39 claims
- 1375US4395931AMethod and apparatus for generating musical tone signalsNIPPON MUSICAL INSTRUMENTS MFG·Filed 1981·Granted Aug 2, 1983·15 cites·17 claims
- 1474US4561337ADigital electronic musical instrument of pitch synchronous sampling typeNIPPON MUSICAL INSTRUMENTS MFG·Filed 1984·Granted Dec 31, 1985·14 cites·10 claims
- 1571US4231277AProcess for forming musical tonesNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Nov 4, 1980·13 cites·17 claims
- 1669US4726276ASlur effect pitch control in an electronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1986·Granted Feb 23, 1988·21 cites·8 claims
- 1769US4584921ATone waveshape generation deviceNIPPON MUSICAL INSTRUMENTS MFG·Filed 1985·Granted Apr 29, 1986·21 cites·16 claims
- 1867US5714703AComputerized music system having software and hardware sound sourcesYAMAHA CORP·Filed 1996·Granted Feb 3, 1998·25 cites·43 claims
- 1965US7917399B2Musical contents storage system having server computer and electronic musical devicesYAMAHA CORP·Filed 2008·Granted Mar 29, 2011·0 cites·4 claims
- 2065US7856381B2Musical contents storage system having server computer and electronic musical devicesYAMAHA CORP·Filed 2008·Granted Dec 21, 2010·0 cites·6 claims
- 2164US5027690AElectronic musical keyboard instruments with variable touch sensitivityNIPPON MUSICAL INSTRUMENTS MFG·Filed 1989·Granted Jul 2, 1991·18 cites·13 claims
- 2262US5442127AWaveform generation device having a memory for storing adjacent sample data in different data compression representationsYAMAHA CORP·Filed 1994·Granted Aug 15, 1995·16 cites·14 claims
- 2362US4416179AElectronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1982·Granted Nov 22, 1983·9 cites·11 claims
- 2461US6026489ASignal processor capable of executing microprograms with different step sizesYAMAHA CORP·Filed 1995·Granted Feb 15, 2000·35 cites·10 claims
- 2558US7788140B2Musical contents storage system having server computer and electronic musical devicesYAMAHA CORP·Filed 2008·Granted Aug 31, 2010·1 cites·3 claims
- 2655US6756532B2Waveform signal generation method with pseudo low tone synthesisYAMAHA CORP·Filed 2001·Granted Jun 29, 2004·6 cites·24 claims
- 2752US4418600AElectronic musical instruments of the type synthesizing a plurality of partial tone signalsNIPPON MUSICAL INSTRUMENTS MFG·Filed 1981·Granted Dec 6, 1983·6 cites·11 claims
- 2851US7778887B2Musical contents storage system having server computer and electronic musical devicesYAMAHA CORP·Filed 2008·Granted Aug 17, 2010·0 cites·3 claims
- 2949USRE37367EComputerized music system having software and hardware sound sourcesYAMAHA CORP·Filed 1999·Granted Sep 18, 2001·11 cites·107 claims
- 3049US5578780ASound synthesis system having pitch adjusting function by correcting loop delayYAMAHA CORP·Filed 1995·Granted Nov 26, 1996·13 cites·8 claims
- 3145US4393742AElectronic musical instruments of the type synthesizing a plurality of partial tone signalsNIPPON MUSICAL INSTRUMENTS MFG·Filed 1981·Granted Jul 19, 1983·4 cites·8 claims
- 3243US5827988AElectronic musical instrument with an instruction device for performance practiceYAMAHA CORP·Filed 1995·Granted Oct 27, 1998·9 cites·8 claims
- 3342US5389730AEmphasize system for electronic musical instrumentYAMAHA CORP·Filed 1991·Granted Feb 14, 1995·6 cites·61 claims
- 3441US4393743AElectronic musical instruments of the type synthesizing a plurality of partial tone signalsNIPPON MUSICAL INSTRUMENTS MFG·Filed 1981·Granted Jul 19, 1983·3 cites·13 claims
- 3538US5241124AElectronic musical instrument capable of controlling touch response based on a reference valueYAMAHA CORP·Filed 1991·Granted Aug 31, 1993·5 cites·15 claims
- 3633US5687105AProcessing device performing plural operations for plural tones in response to readout of one program instructionYAMAHA CORP·Filed 1996·Granted Nov 11, 1997·4 cites·26 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →