Inventor · disambiguated record
Koji Niimi
Also filed as: KATO MITSUMI · KATOH MITSUMI · NIIMI KOJI
22 granted patents·565 citations·filing 1976–2007
96Inventor score
Top patents by PatentIndex Score
22 records- 0194US7925006B2Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatusYAMAHA CORP·Filed 2007·Granted Apr 12, 2011·43 cites·8 claims
- 0293US4130043AElectronic musical instrument having filter-and-delay loop for tone productionNIPPON MUSICAL INSTRUMENTS MFG·Filed 1976·Granted Dec 19, 1978·42 cites·9 claims
- 0391US4133241AElectronic musical instrument utilizing recursive algorithmNIPPON MUSICAL INSTRUMENTS MFG·Filed 1976·Granted Jan 9, 1979·35 cites·28 claims
- 0489US5365468ASampling frequency converterYAMAHA CORP·Filed 1993·Granted Nov 15, 1994·61 cites·5 claims
- 0589US4184400AElectronic musical instrument utilizing data processing systemNIPPON MUSICAL INSTRUMENTS MFG·Filed 1977·Granted Jan 22, 1980·25 cites·20 claims
- 0687US4246823AWaveshape generator for electronic musical instrumentsNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Jan 27, 1981·25 cites·16 claims
- 0786US4587620ANoise elimination deviceNIPPON MUSICAL INSTRUMENTS MFG·Filed 1982·Granted May 6, 1986·67 cites·13 claims
- 0886US4213366AElectronic musical instrument of wave memory reading typeNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Jul 22, 1980·24 cites·13 claims
- 0982US6084974ADigital signal processing deviceYAMAHA CORP·Filed 1994·Granted Jul 4, 2000·41 cites·18 claims
- 1081US4706291AReverberation imparting deviceNIPPON MUSICAL INSTRUMENTS MFG·Filed 1986·Granted Nov 10, 1987·36 cites·5 claims
- 1180US4803731AReverbation imparting deviceYAMAHA CORP·Filed 1987·Granted Feb 7, 1989·33 cites·12 claims
- 1279US6835885B1Time-axis compression/expansion method and apparatus for multitrack signalsYAMAHA CORP·Filed 2000·Granted Dec 28, 2004·25 cites·9 claims
- 1379US6362764B1Digital to analog conversion apparatus and method with cross-fading between new and old dataYAMAHA CORP·Filed 2000·Granted Mar 26, 2002·29 cites·7 claims
- 1479US4183275AElectronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Jan 15, 1980·15 cites·3 claims
- 1577US7925008B2Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatusYAMAHA CORP·Filed 2007·Granted Apr 12, 2011·5 cites·8 claims
- 1675US7403609B2Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatusYAMAHA CORP·Filed 2003·Granted Jul 22, 2008·15 cites·21 claims
- 1764US4223582AElectronic musical instrument by nonlinearly addressing waveform memoryNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Sep 23, 1980·11 cites·4 claims
- 1857US4084472AElectronic musical instrument with tone generation by recursive calculationNIPPON MUSICAL INSTRUMENTS MFG·Filed 1977·Granted Apr 18, 1978·8 cites·8 claims
- 1955US4244257AWave-shape generator for electronic musical instrumentsNIPPON MUSICAL INSTRUMENTS MFG·Filed 1979·Granted Jan 13, 1981·8 cites·9 claims
- 2042US4389892AReverberation characteristics measuring deviceNIPPON MUSICAL INSTRUMENTS MFG·Filed 1981·Granted Jun 28, 1983·6 cites·4 claims
- 2140US4258602AElectronic keyboard musical instrument of wave memory reading typeNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Mar 31, 1981·5 cites·16 claims
- 2235US6073746AAssembled part in assembly lineASMO CO LTD·Filed 1996·Granted Jun 13, 2000·6 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →