Assignee
TSUKAMOTO KENKICHI
7 granted patents·108 citations·filing 1974–1980
Top patents by PatentIndex Score
7 records- 0181US3944757AHigh-fidelity moving-coil loudspeakerTSUKAMOTO KENKICHI·Filed 1974·Granted Mar 16, 1976·27 cites·2 claims
- 0271US4235302ALoudspeakerTSUKAMOTO KENKICHI·Filed 1978·Granted Nov 25, 1980·33 cites·8 claims
- 0366US4313040AElectro-acoustic transducer with free edge diaphragmTSUKAMOTO KENKICHI·Filed 1980·Granted Jan 26, 1982·32 cites·7 claims
- 0441US4093833AMoving coil cartridge with magnetic means to affix stylus holder to cartridge casingTSUKAMOTO KENKICHI·Filed 1976·Granted Jun 6, 1978·9 cites·3 claims
- 0535US4146236ACounterweight for a tonearmTSUKAMOTO KENKICHI·Filed 1977·Granted Mar 27, 1979·6 cites·5 claims
- 0629US4179589APhono cartridgeTSUKAMOTO KENKICHI·Filed 1978·Granted Dec 18, 1979·1 cites·2 claims
- 0728US4198610AAudio amplifierTSUKAMOTO KENKICHI·Filed 1978·Granted Apr 15, 1980·0 cites·3 claims
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