Assignee
SANSUI ELECTRIC CO
JP·69 granted patents·1,223 citations·filing 1973–1991
Top patents by PatentIndex Score
69 records- 0199USD254616SHead phoneSANSUI ELECTRIC CO·Filed 1977·Granted Apr 1, 1980·99 cites·1 claims
- 0299USD246519SHead phoneSANSUI ELECTRIC CO·Filed 1976·Granted Nov 29, 1977·105 cites·1 claims
- 0394USD253289SControl knob for audio apparatusSANSUI ELECTRIC CO·Filed 1977·Granted Oct 30, 1979·31 cites·1 claims
- 0494US4016366ACompatible stereophonic receiverSANSUI ELECTRIC CO·Filed 1975·Granted Apr 5, 1977·105 cites·8 claims
- 0593USD247488SRecord playerSANSUI ELECTRIC CO·Filed 1975·Granted Mar 14, 1978·42 cites·1 claims
- 0692USD248471SSpeaker cabinetSANSUI ELECTRIC CO·Filed 1976·Granted Jul 11, 1978·39 cites·1 claims
- 0789US4118605ACoil mount structureSANSUI ELECTRIC CO·Filed 1978·Granted Oct 3, 1978·57 cites·15 claims
- 0889USD249143SRecord playerSANSUI ELECTRIC CO·Filed 1976·Granted Aug 29, 1978·26 cites·1 claims
- 0988US4216517AProtection circuit for power amplifierSANSUI ELECTRIC CO·Filed 1978·Granted Aug 5, 1980·26 cites·6 claims
- 1084USD252393SRecord playerSANSUI ELECTRIC CO·Filed 1977·Granted Jul 17, 1979·26 cites·1 claims
- 1182US4105946AFrequency synthesizer with phase locked loop and counterSANSUI ELECTRIC CO·Filed 1977·Granted Aug 8, 1978·29 cites·20 claims
- 1281US3934086AMatrix four-channel decoding systemSANSUI ELECTRIC CO·Filed 1974·Granted Jan 20, 1976·26 cites·3 claims
- 1380US4633483ANear-instantaneous companding PCM involving accumulation of less significant bits removed from original dataSANSUI ELECTRIC CO·Filed 1984·Granted Dec 30, 1986·32 cites·19 claims
- 1478US4229705ADifferential amplifiersSANSUI ELECTRIC CO·Filed 1978·Granted Oct 21, 1980·18 cites·6 claims
- 1577USD243794SCombined amplifier and tunerSANSUI ELECTRIC CO·Filed 1975·Granted Mar 22, 1977·12 cites·1 claims
- 1675US4058675ALoudspeaker system for use in a stereophonic sound reproduction systemSANSUI ELECTRIC CO·Filed 1976·Granted Nov 15, 1977·41 cites·10 claims
- 1773US4585952ADigital waveform shaping circuitSANSUI ELECTRIC CO·Filed 1983·Granted Apr 29, 1986·18 cites·10 claims
- 1873USD253109SSpeaker box with removable grillSANSUI ELECTRIC CO·Filed 1977·Granted Oct 9, 1979·14 cites·1 claims
- 1971US4580278ARead clock producing systemSANSUI ELECTRIC CO·Filed 1983·Granted Apr 1, 1986·16 cites·5 claims
- 2071US4193076ACoupling an outer antenna with a radio receiver having a bar antennaSANSUI ELECTRIC CO·Filed 1978·Granted Mar 11, 1980·24 cites·9 claims
- 2170USD250535SCombined tuner and amplifierSANSUI ELECTRIC CO·Filed 1977·Granted Dec 12, 1978·9 cites·1 claims
- 2270USD249946SAmplifierSANSUI ELECTRIC CO·Filed 1976·Granted Oct 17, 1978·10 cites·1 claims
- 2369US4546394ASignal reconstruction circuit for digital signalsSANSUI ELECTRIC CO·Filed 1983·Granted Oct 8, 1985·14 cites·7 claims
- 2469US4117406AMuting arrangement for am synchronous detector using a pll circuitSANSUI ELECTRIC CO·Filed 1977·Granted Sep 26, 1978·12 cites·7 claims
- 2569US4079204AAM Stereophonic transmission systemSANSUI ELECTRIC CO·Filed 1976·Granted Mar 14, 1978·17 cites·4 claims
- 2668US4626936ARelative velocity control device for magnetic recording and reproducing apparatusSANSUI ELECTRIC CO·Filed 1985·Granted Dec 2, 1986·17 cites·7 claims
- 2768US4401951ABias circuit for use in a single-ended push-pull circuitSANSUI ELECTRIC CO·Filed 1980·Granted Aug 30, 1983·13 cites·8 claims
- 2868US4367442ADistortion correction circuit for a power amplifierSANSUI ELECTRIC CO·Filed 1980·Granted Jan 4, 1983·13 cites·18 claims
- 2968US3962544ASound reproducing devicesSANSUI ELECTRIC CO·Filed 1974·Granted Jun 8, 1976·14 cites·12 claims
- 3065US3952157AMatrix four-channel decoding systemSANSUI ELECTRIC CO·Filed 1974·Granted Apr 20, 1976·13 cites·14 claims
- 3164US4135162APower amplifier circuitsSANSUI ELECTRIC CO·Filed 1977·Granted Jan 16, 1979·10 cites·5 claims
- 3264USD250534SCombined tuner and amplifierSANSUI ELECTRIC CO·Filed 1977·Granted Dec 12, 1978·7 cites·1 claims
- 3363US4029906AAutomatic noise reduction system of FM stereo receiverSANSUI ELECTRIC CO·Filed 1976·Granted Jun 14, 1977·17 cites·10 claims
- 3462US4759038APCM transmission systemSANSUI ELECTRIC CO·Filed 1985·Granted Jul 19, 1988·17 cites·9 claims
- 3561USD250759STape deckSANSUI ELECTRIC CO·Filed 1977·Granted Jan 9, 1979·7 cites·1 claims
- 3661USD249146STunerSANSUI ELECTRIC CO·Filed 1976·Granted Aug 29, 1978·6 cites·1 claims
- 3759US5206466ADiaphragm for speakerSANSUI ELECTRIC CO·Filed 1991·Granted Apr 27, 1993·38 cites·5 claims
- 3858USD247749STunerSANSUI ELECTRIC CO·Filed 1976·Granted Apr 18, 1978·6 cites·1 claims
- 3957US4144463AStabilized DC power supply devices for providing a plurality of DC power outputs which are selectively consumedSANSUI ELECTRIC CO·Filed 1977·Granted Mar 13, 1979·14 cites·15 claims
- 4057US3959700ASpeed control device for transistor motorSANSUI ELECTRIC CO·Filed 1974·Granted May 25, 1976·11 cites·2 claims
- 4155US3991382AOscillation frequency control device for a local oscillatorSANSUI ELECTRIC CO·Filed 1975·Granted Nov 9, 1976·11 cites·5 claims
- 4254US4158795ABrushless DC motorsSANSUI ELECTRIC CO·Filed 1977·Granted Jun 19, 1979·15 cites·4 claims
- 4354US4135164ASynchronous generating circuit devices with two phase-locked loops and feedback around bothSANSUI ELECTRIC CO·Filed 1977·Granted Jan 16, 1979·10 cites·11 claims
- 4452US3982069ADecoding apparatus for use in matrix four channel systems of a plurality of typesSANSUI ELECTRIC CO·Filed 1975·Granted Sep 21, 1976·9 cites·6 claims
- 4550US4021612ADecoder apparatus applicable to matrix 4-channel systems of different typesSANSUI ELECTRIC CO·Filed 1975·Granted May 3, 1977·8 cites·3 claims
- 4649US4425638ADual turntable record player with torque cancellationSANSUI ELECTRIC CO·Filed 1981·Granted Jan 10, 1984·6 cites·11 claims
- 4747US3937422AMagnetic tape recording and reproducing machinesSANSUI ELECTRIC CO·Filed 1973·Granted Feb 10, 1976·7 cites·7 claims
- 4846US4517528AAmplifier circuit driven by ground isolated power supplySANSUI ELECTRIC CO·Filed 1982·Granted May 14, 1985·5 cites·10 claims
- 4944US4177360AMoving magnet type pickup cartridgeSANSUI ELECTRIC CO·Filed 1977·Granted Dec 4, 1979·11 cites·12 claims
- 5044USD242638SAmplifierSANSUI ELECTRIC CO·Filed 1975·Granted Dec 7, 1976·3 cites·1 claims
Showing the top 50 of 69 patent records by PatentIndex Score.
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