Assignee
YOKOGAWA ELECTRIC WORKS LTD
48 granted patents·1,229 citations·filing 1973–1981
Top patents by PatentIndex Score
48 records- 0196US4385255ALinear array ultrasonic transducerYOKOGAWA ELECTRIC WORKS LTD·Filed 1980·Granted May 24, 1983·161 cites·6 claims
- 0294US4099413AThermal noise thermometerYOKOGAWA ELECTRIC WORKS LTD·Filed 1977·Granted Jul 11, 1978·87 cites·10 claims
- 0393US3959772ATwo-wire signal transmission systemYOKOGAWA ELECTRIC WORKS LTD·Filed 1975·Granted May 25, 1976·92 cites·16 claims
- 0492US4297872AVibration type transducerYOKOGAWA ELECTRIC WORKS LTD·Filed 1979·Granted Nov 3, 1981·49 cites·8 claims
- 0591US4017828ARedundancy system for data communicationYOKOGAWA ELECTRIC WORKS LTD·Filed 1975·Granted Apr 12, 1977·82 cites·5 claims
- 0687US4248098AFlow metering apparatusYOKOGAWA ELECTRIC WORKS LTD·Filed 1978·Granted Feb 3, 1981·48 cites·12 claims
- 0786US4086570AControlled DC current supply device with open circuit detecting meansYOKOGAWA ELECTRIC WORKS LTD·Filed 1976·Granted Apr 25, 1978·27 cites·5 claims
- 0885US4319489AUltrasonic diagnostic method and apparatusYOKOGAWA ELECTRIC WORKS LTD·Filed 1980·Granted Mar 16, 1982·47 cites·7 claims
- 0984US4238844ADisplaced position detecting deviceYOKOGAWA ELECTRIC WORKS LTD·Filed 1979·Granted Dec 9, 1980·48 cites·25 claims
- 1084US4201083AVelocity detecting apparatusYOKOGAWA ELECTRIC WORKS LTD·Filed 1978·Granted May 6, 1980·37 cites·4 claims
- 1182US4299122AForce transducerYOKOGAWA ELECTRIC WORKS LTD·Filed 1979·Granted Nov 10, 1981·42 cites·14 claims
- 1281US3988728AGraphic display deviceYOKOGAWA ELECTRIC WORKS LTD·Filed 1975·Granted Oct 26, 1976·40 cites·12 claims
- 1379US4141065AElectric controller system with bumpless transferYOKOGAWA ELECTRIC WORKS LTD·Filed 1977·Granted Feb 20, 1979·29 cites·10 claims
- 1478US4034367AAnalog-to-digital converter utilizing a random noise sourceYOKOGAWA ELECTRIC WORKS LTD·Filed 1975·Granted Jul 5, 1977·20 cites·9 claims
- 1575US3948097AFlow velocity measuring deviceYOKOGAWA ELECTRIC WORKS LTD·Filed 1974·Granted Apr 6, 1976·20 cites·9 claims
- 1674US4258565AForce detectorYOKOGAWA ELECTRIC WORKS LTD·Filed 1979·Granted Mar 31, 1981·29 cites·3 claims
- 1773US4157470AInfrared gas analyzerYOKOGAWA ELECTRIC WORKS LTD·Filed 1978·Granted Jun 5, 1979·26 cites·8 claims
- 1871US4201084AVortex flow meterYOKOGAWA ELECTRIC WORKS LTD·Filed 1978·Granted May 6, 1980·22 cites·10 claims
- 1971US4149256AAnalog signal processing systemYOKOGAWA ELECTRIC WORKS LTD·Filed 1977·Granted Apr 10, 1979·20 cites·9 claims
- 2071US3974425AIsolator circuit with improved frequency responseYOKOGAWA ELECTRIC WORKS LTD·Filed 1975·Granted Aug 10, 1976·13 cites·10 claims
- 2170US4345150AMethod and apparatus for measuring the moisture content of paperYOKOGAWA ELECTRIC WORKS LTD·Filed 1980·Granted Aug 17, 1982·32 cites·4 claims
- 2270US4257275AVelocity detecting apparatusYOKOGAWA ELECTRIC WORKS LTD·Filed 1979·Granted Mar 24, 1981·21 cites·3 claims
- 2369US4073191ADifferential pressure transducerYOKOGAWA ELECTRIC WORKS LTD·Filed 1976·Granted Feb 14, 1978·22 cites·8 claims
- 2465US4364056AInteractive graphic systemYOKOGAWA ELECTRIC WORKS LTD·Filed 1981·Granted Dec 14, 1982·17 cites·6 claims
- 2564US4392379AUltrasonic diagnostic equipmentYOKOGAWA ELECTRIC WORKS LTD·Filed 1981·Granted Jul 12, 1983·20 cites·4 claims
- 2662US4214250AIndicating recorderYOKOGAWA ELECTRIC WORKS LTD·Filed 1978·Granted Jul 22, 1980·11 cites·7 claims
- 2762US3940986AFlow Velocity measuring deviceYOKOGAWA ELECTRIC WORKS LTD·Filed 1975·Granted Mar 2, 1976·19 cites·21 claims
- 2860US4336819APneumatic converterYOKOGAWA ELECTRIC WORKS LTD·Filed 1979·Granted Jun 29, 1982·11 cites·8 claims
- 2957US4011556AGraphic display deviceYOKOGAWA ELECTRIC WORKS LTD·Filed 1975·Granted Mar 8, 1977·18 cites·9 claims
- 3056US4074354AProcess control systemYOKOGAWA ELECTRIC WORKS LTD·Filed 1976·Granted Feb 14, 1978·18 cites·6 claims
- 3156US3995493ADifferential pressure transducerYOKOGAWA ELECTRIC WORKS LTD·Filed 1975·Granted Dec 7, 1976·14 cites·7 claims
- 3251US4161678AServo-systemYOKOGAWA ELECTRIC WORKS LTD·Filed 1976·Granted Jul 17, 1979·11 cites·7 claims
- 3345US4362061AVortex shedding flow measuring deviceYOKOGAWA ELECTRIC WORKS LTD·Filed 1981·Granted Dec 7, 1982·13 cites·2 claims
- 3445US4336494AInsulation resistance testerYOKOGAWA ELECTRIC WORKS LTD·Filed 1980·Granted Jun 22, 1982·9 cites·5 claims
- 3542US4148043ATwo-color electrostatic printing apparatusYOKOGAWA ELECTRIC WORKS LTD·Filed 1977·Granted Apr 3, 1979·4 cites·14 claims
- 3636US4232259AServo-systemYOKOGAWA ELECTRIC WORKS LTD·Filed 1977·Granted Nov 4, 1980·5 cites·15 claims
- 3736US4145652AElectric power to DC signal converterYOKOGAWA ELECTRIC WORKS LTD·Filed 1977·Granted Mar 20, 1979·3 cites·9 claims
- 3836US4082942AProcess control system with signal conversion to standard intermediate signals carrying data as a function of time durationYOKOGAWA ELECTRIC WORKS LTD·Filed 1977·Granted Apr 4, 1978·6 cites·1 claims
- 3935US4074274AMultipoint recorderYOKOGAWA ELECTRIC WORKS LTD·Filed 1976·Granted Feb 14, 1978·4 cites·11 claims
- 4034US4280064ASignal isolatorYOKOGAWA ELECTRIC WORKS LTD·Filed 1978·Granted Jul 21, 1981·2 cites·9 claims
- 4134US3934139AApparatus for measuring calorific power of hydrocarbon compoundsYOKOGAWA ELECTRIC WORKS LTD·Filed 1973·Granted Jan 20, 1976·6 cites·11 claims
- 4233US4091389ASelf-balancing recorderYOKOGAWA ELECTRIC WORKS LTD·Filed 1977·Granted May 23, 1978·2 cites·11 claims
- 4332US4194118ADetector for use in infrared gas analyzerYOKOGAWA ELECTRIC WORKS LTD·Filed 1978·Granted Mar 18, 1980·4 cites·2 claims
- 4432US4019137AMoving coil type instrumentYOKOGAWA ELECTRIC WORKS LTD·Filed 1975·Granted Apr 19, 1977·2 cites·1 claims
- 4531US4156276AEffective value converting circuitYOKOGAWA ELECTRIC WORKS LTD·Filed 1977·Granted May 22, 1979·3 cites·5 claims
- 4631US4063150AResonance thermometerYOKOGAWA ELECTRIC WORKS LTD·Filed 1976·Granted Dec 13, 1977·5 cites·2 claims
- 4729US4230555AOxygen gas analyzer using a solid electrolyteYOKOGAWA ELECTRIC WORKS LTD·Filed 1979·Granted Oct 28, 1980·5 cites·2 claims
- 4815US4004279AMethod and apparatus for controlling data transfer between input and output devices and a direct digital controllerYOKOGAWA ELECTRIC WORKS LTD·Filed 1974·Granted Jan 18, 1977·3 cites·2 claims
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