Inventor · disambiguated record
Mitsuo Ohsawa
Also filed as: KAWAGOE HIROSHI · KOIZUMI AKIO · OHSAWA MITSUO
34 granted patents·589 citations·filing 1974–1989
98Inventor score
Files withSONY CORP34
Top patents by PatentIndex Score
34 records- 0196US4236198ASwitching regulatorSONY CORP·Filed 1978·Granted Nov 25, 1980·75 cites·7 claims
- 0294US4121282APower supply circuitSONY CORP·Filed 1977·Granted Oct 17, 1978·60 cites·7 claims
- 0387US4180852AControl circuit for use in a switching-type regulatorSONY CORP·Filed 1978·Granted Dec 25, 1979·34 cites·10 claims
- 0486US4413309APrinted circuit boardSONY CORP·Filed 1981·Granted Nov 1, 1983·46 cites·4 claims
- 0585US4771455AScrambling apparatusSONY CORP·Filed 1983·Granted Sep 13, 1988·41 cites·4 claims
- 0681US4339785AElectronic circuit arrangement mounted on printed circuit boardSONY CORP·Filed 1980·Granted Jul 13, 1982·37 cites·7 claims
- 0779US4170360AApparatus for adjusting the position of an arm in a record playing device, such as a phonograph or the likeSONY CORP·Filed 1978·Granted Oct 9, 1979·19 cites·15 claims
- 0875US4058771ADouble-balanced frequency converterSONY CORP·Filed 1976·Granted Nov 15, 1977·23 cites·16 claims
- 0972US4365326ARecord playerSONY CORP·Filed 1981·Granted Dec 21, 1982·15 cites·6 claims
- 1072US4194743ARecord playerSONY CORP·Filed 1978·Granted Mar 25, 1980·25 cites·19 claims
- 1169US4636709ARegulated DC power supplySONY CORP·Filed 1984·Granted Jan 13, 1987·20 cites·18 claims
- 1268US4345371AMethod and apparatus for manufacturing hybrid integrated circuitsSONY CORP·Filed 1980·Granted Aug 24, 1982·26 cites·10 claims
- 1367US4973897ASystem analyzerSONY CORP·Filed 1989·Granted Nov 27, 1990·21 cites·11 claims
- 1466US3940681AWide amplitude range detecting circuitSONY CORP·Filed 1974·Granted Feb 24, 1976·13 cites·10 claims
- 1564US4140960ACurrent control circuitSONY CORP·Filed 1977·Granted Feb 20, 1979·10 cites·11 claims
- 1657US4405971AElectrical circuit apparatusSONY CORP·Filed 1980·Granted Sep 20, 1983·15 cites·3 claims
- 1757US4326239APrinted circuit boardSONY CORP·Filed 1979·Granted Apr 20, 1982·15 cites·3 claims
- 1857US4074075ACircuit for demodulating a stereo signalSONY CORP·Filed 1976·Granted Feb 14, 1978·11 cites·8 claims
- 1955US4160217APhase locked loop circuitSONY CORP·Filed 1978·Granted Jul 3, 1979·10 cites·1 claims
- 2054US4349860ATantalum condenserSONY CORP·Filed 1980·Granted Sep 14, 1982·8 cites·1 claims
- 2152US4100500AAngle-modulation detector having push-pull input applied through high-pass filtersSONY CORP·Filed 1977·Granted Jul 11, 1978·10 cites·16 claims
- 2248US4121161AAM receiverSONY CORP·Filed 1975·Granted Oct 17, 1978·6 cites·7 claims
- 2347US4140878AStereo demodulator systemSONY CORP·Filed 1977·Granted Feb 20, 1979·7 cites·14 claims
- 2447US3974453AStereophonic signal demodulator for a pair of composite signals with different AC signal levels and the same DC signal levelSONY CORP·Filed 1975·Granted Aug 10, 1976·7 cites·14 claims
- 2546US4139824AGain control circuitSONY CORP·Filed 1977·Granted Feb 13, 1979·5 cites·11 claims
- 2646US4101842ADifferential amplifierSONY CORP·Filed 1977·Granted Jul 18, 1978·5 cites·8 claims
- 2744US4059802AInput level display circuit for receiversSONY CORP·Filed 1976·Granted Nov 22, 1977·3 cites·12 claims
- 2842US4199149ARecord playerSONY CORP·Filed 1978·Granted Apr 22, 1980·4 cites·6 claims
- 2939US4054839ABalanced synchronous detector circuitSONY CORP·Filed 1976·Granted Oct 18, 1977·5 cites·10 claims
- 3037US4167649ACurrent mirror circuit and apparatus for using sameSONY CORP·Filed 1977·Granted Sep 11, 1979·3 cites·21 claims
- 3136US4024461AFM discriminatorSONY CORP·Filed 1976·Granted May 17, 1977·4 cites·10 claims
- 3234US4123714AFM Receiver with liquid crystal signal indicatorSONY CORP·Filed 1976·Granted Oct 31, 1978·3 cites·4 claims
- 3334US4063184ASignal transfer circuitSONY CORP·Filed 1976·Granted Dec 13, 1977·2 cites·7 claims
- 3430US4040075AFrequency converterSONY CORP·Filed 1975·Granted Aug 2, 1977·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →