Inventor · disambiguated record
Akiyoshi Oya
Also filed as: OKUMURA TAKATOSHI · OYA AKIYOSHI · UCHIYAMA YASUJI
24 granted patents·301 citations·filing 1975–1989
96Inventor score
Top patents by PatentIndex Score
24 records- 0189US4643066AElectronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Feb 17, 1987·23 cites·21 claims
- 0283US3981217AKey assignerNIPPON MUSICAL INSTRUMENTS MFG·Filed 1975·Granted Sep 21, 1976·22 cites·5 claims
- 0382US4192211AElectronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Mar 11, 1980·17 cites·6 claims
- 0481US4217804AElectronic musical instrument with automatic arpeggio performance deviceNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Aug 19, 1980·34 cites·11 claims
- 0578US4134320AKey assigner for use in electronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1975·Granted Jan 16, 1979·16 cites·8 claims
- 0676US4333374ASubmultiple-related-frequency wave generatorNIPPON MUSICAL INSTRUMENTS MFG·Filed 1980·Granted Jun 8, 1982·14 cites·15 claims
- 0775US5025702AElectronic musical instrument employing time-sharing frequency modulation and variable control of harmonicsYAMAHA CORP·Filed 1989·Granted Jun 25, 1991·21 cites·11 claims
- 0874US4041826AElectronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1975·Granted Aug 16, 1977·15 cites·5 claims
- 0973US4297934ADisplay device for automatic rhythm performance apparatusNIPPON MUSICAL INSTRUMENTS MFG·Filed 1980·Granted Nov 3, 1981·14 cites·6 claims
- 1067US4432265AElectronic musical instrument controlling tone properties by control data signalsNIPPON MUSICAL INSTRUMENTS MFG·Filed 1982·Granted Feb 21, 1984·12 cites·11 claims
- 1166US4148239AElectronic musical instrument exhibiting randomness in tone elementsNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Apr 10, 1979·11 cites·15 claims
- 1265US4228403ASubmultiple-related-frequency wave generatorNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Oct 14, 1980·9 cites·11 claims
- 1363US4235142AElectronic musical instrument of time-shared digital processing typeNIPPON MUSICAL INSTRUMENTS MFG·Filed 1979·Granted Nov 25, 1980·10 cites·4 claims
- 1462US4228712AKey code data generatorNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Oct 21, 1980·10 cites·8 claims
- 1555US4381689AChord generating apparatus of an electronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1981·Granted May 3, 1983·15 cites·11 claims
- 1654US4326441AAutomatic performance deviceNIPPON MUSICAL INSTRUMENTS MFG·Filed 1980·Granted Apr 27, 1982·14 cites·28 claims
- 1753US4748888AElectronic musical instrument including waveshape memory and modifiable address controlNIPPON MUSICAL INSTRUMENTS MFG·Filed 1985·Granted Jun 7, 1988·9 cites·11 claims
- 1852US4402245AElectronic musical instrument with special tone generatorNIPPON MUSICAL INSTRUMENTS MFG·Filed 1981·Granted Sep 6, 1983·7 cites·10 claims
- 1945US5191161AElectronic musical instrument including waveshape memory and modifiable address controlYAMAHA CORP·Filed 1987·Granted Mar 2, 1993·8 cites·6 claims
- 2044US4321850AElectronic musical instrument with highest priority key tone productionNIPPON MUSICAL INSTRUMENTS MFG·Filed 1980·Granted Mar 30, 1982·4 cites·8 claims
- 2142US4218948AElectronic musical instrument of key code processing typeNIPPON MUSICAL INSTRUMENTS MFG·Filed 1978·Granted Aug 26, 1980·4 cites·12 claims
- 2242US4121348ATouch-responsive circuit in electronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1976·Granted Oct 24, 1978·4 cites·10 claims
- 2340US4223584AElectronic musical instrumentNIPPON MUSICAL INSTRUMENTS MFG·Filed 1979·Granted Sep 23, 1980·3 cites·9 claims
- 2435US4492142ATimbre modulation circuit for electronic musical instrumentsNIPPON MUSICAL INSTRUMENTS MFG·Filed 1982·Granted Jan 8, 1985·5 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →