Inventor · disambiguated record
Sadaaki Ezawa
Also filed as: EZAWA SADAAKI · KUGISAWA TOSHIO
14 granted patents·158 citations·filing 1975–1991
92Inventor score
Top patents by PatentIndex Score
14 records- 0185US4357849AKey switch information assignorKAWAI MUSICAL INSTR MFG CO·Filed 1979·Granted Nov 9, 1982·24 cites·6 claims
- 0274US3982460AMusical-tone-waveform forming apparatus for an electronic musical instrumentKAWAI MUSICAL INSTR MFG CO·Filed 1975·Granted Sep 28, 1976·16 cites·14 claims
- 0369US4969194AApparatus for drilling pronunciationKAWAI MUSICAL INSTR MFG CO·Filed 1989·Granted Nov 6, 1990·36 cites·10 claims
- 0463US4539885AElectronic musical instrumentKAWAI MUSICAL INSTR MFG CO·Filed 1984·Granted Sep 10, 1985·10 cites·2 claims
- 0560US4512230AElectronic musical instrumentKAWAI MUSICAL INSTR MFG CO·Filed 1983·Granted Apr 23, 1985·9 cites·2 claims
- 0658US4023454ATone source apparatus for an electronic musical instrumentDAWAI GAKKI SEISAKUSHO KK·Filed 1975·Granted May 17, 1977·11 cites·6 claims
- 0750US5142657AApparatus for drilling pronunciationKAWAI MUSICAL INSTR MFG CO·Filed 1991·Granted Aug 25, 1992·24 cites·3 claims
- 0846US4059040ATone-source apparatus for electronic musical instrumentKAWAI MUSICAL INSTR MFG CO·Filed 1975·Granted Nov 22, 1977·5 cites·7 claims
- 0944US4282785AElectronic musical instrumentKAWAI MUSICAL INSTR MFG CO·Filed 1977·Granted Aug 11, 1981·5 cites·3 claims
- 1042US4424730AElectronic musical instrumentKAWAI MUSICAL INSTR MFG CO·Filed 1981·Granted Jan 10, 1984·4 cites·3 claims
- 1140US4442751AEffect generating system for an electronic musical instrumentKAWAI MUSICAL INSTR MFG CO·Filed 1982·Granted Apr 17, 1984·3 cites·1 claims
- 1239US4498364AElectronic musical instrumentKAWAI MUSICAL INSTR MFG CO·Filed 1982·Granted Feb 12, 1985·3 cites·1 claims
- 1338US4524269ACard operation indicator for magnetic card drive devicesKAWAI MUSICAL INSTR MFG CO·Filed 1983·Granted Jun 18, 1985·5 cites·3 claims
- 1437US4174649AElectronic musical instrumentKAWAI MUSICAL INSTR MFG CO·Filed 1977·Granted Nov 20, 1979·3 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →