Assignee
TAKEDA RIKEN IND CO LTD
JP·60 granted patents·1,504 citations·filing 1974–1987
Top patents by PatentIndex Score
60 records- 0197US4497056AIC TesterTAKEDA RIKEN IND CO LTD·Filed 1982·Granted Jan 29, 1985·125 cites·20 claims
- 0295US4504749ADelay pulse generating circuitTAKEDA RIKEN IND CO LTD·Filed 1982·Granted Mar 12, 1985·57 cites·18 claims
- 0390US4523312AIC testerTAKEDA RIKEN IND CO LTD·Filed 1982·Granted Jun 11, 1985·54 cites·18 claims
- 0490US4464656AWaveform display apparatusTAKEDA RIKEN IND CO LTD·Filed 1981·Granted Aug 7, 1984·75 cites·30 claims
- 0589US4313200ALogic test system permitting test pattern changes without dummy cyclesTAKEDA RIKEN IND CO LTD·Filed 1979·Granted Jan 26, 1982·52 cites·15 claims
- 0689US3932814AHeterodyne receiver systemTAKEDA RIKEN IND CO LTD·Filed 1974·Granted Jan 13, 1976·40 cites·22 claims
- 0786US4555663ATest pattern generating apparatusTAKEDA RIKEN IND CO LTD·Filed 1983·Granted Nov 26, 1985·42 cites·5 claims
- 0886US4451782ASpectrum analyzerTAKEDA RIKEN IND CO LTD·Filed 1981·Granted May 29, 1984·49 cites·22 claims
- 0982US4310891AFrequency measuring apparatusTAKEDA RIKEN IND CO LTD·Filed 1979·Granted Jan 12, 1982·31 cites·17 claims
- 1081US4539518ASignal generator for digital spectrum analyzerTAKEDA RIKEN IND CO LTD·Filed 1983·Granted Sep 3, 1985·33 cites·14 claims
- 1181US4112358ADigital frequency measuring deviceTAKEDA RIKEN IND CO LTD·Filed 1977·Granted Sep 5, 1978·31 cites·5 claims
- 1278US4374358AApparatus for measuring the oscillation frequency of a voltage controlled oscillatorTAKEDA RIKEN IND CO LTD·Filed 1981·Granted Feb 15, 1983·32 cites·9 claims
- 1378US4272719AElectric field intensity measuring apparatusTAKEDA RIKEN IND CO LTD·Filed 1979·Granted Jun 9, 1981·28 cites·25 claims
- 1477US4486750AData transfer systemTAKEDA RIKEN IND CO LTD·Filed 1982·Granted Dec 4, 1984·56 cites·23 claims
- 1577US4349777AVariable current sourceTAKEDA RIKEN IND CO LTD·Filed 1980·Granted Sep 14, 1982·31 cites·6 claims
- 1676US4696004ALogic analyzerTAKEDA RIKEN IND CO LTD·Filed 1985·Granted Sep 22, 1987·34 cites·12 claims
- 1776US4600994APhase difference measuring apparatusTAKEDA RIKEN IND CO LTD·Filed 1983·Granted Jul 15, 1986·28 cites·18 claims
- 1875US4691831AIC test equipmentTAKEDA RIKEN IND CO LTD·Filed 1985·Granted Sep 8, 1987·55 cites·14 claims
- 1975US4480238AYIG Tuned filter having coupling loops formed from conductively layered insulated platesTAKEDA RIKEN IND CO LTD·Filed 1982·Granted Oct 30, 1984·22 cites·13 claims
- 2073US4495621AGlitch detecting and measuring apparatusTAKEDA RIKEN IND CO LTD·Filed 1982·Granted Jan 22, 1985·30 cites·18 claims
- 2173US4045731AFilter having an automatically controlled variable cut-off frequencyTAKEDA RIKEN IND CO LTD·Filed 1976·Granted Aug 30, 1977·25 cites·9 claims
- 2272US4760924AIC test equipment having input magazine replenisherTAKEDA RIKEN IND CO LTD·Filed 1987·Granted Aug 2, 1988·23 cites·9 claims
- 2368US4719365AClocked logic delay device which corrects for the phase difference between a clock signal and an input binary signalTAKEDA RIKEN IND CO LTD·Filed 1984·Granted Jan 12, 1988·35 cites·15 claims
- 2468US4110746AA-D converter having nonlinear characteristicsTAKEDA RIKEN IND CO LTD·Filed 1976·Granted Aug 29, 1978·16 cites·5 claims
- 2567US4584683ALogic circuit test systemTAKEDA RIKEN IND CO LTD·Filed 1983·Granted Apr 22, 1986·20 cites·9 claims
- 2667US4349789AStabilized sweep frequency generator with adjustable start and stop frequenciesTAKEDA RIKEN IND CO LTD·Filed 1980·Granted Sep 14, 1982·22 cites·27 claims
- 2766US4586181ATest pattern generating apparatusTAKEDA RIKEN IND CO LTD·Filed 1983·Granted Apr 29, 1986·19 cites·11 claims
- 2866US4459580ADA ConverterTAKEDA RIKEN IND CO LTD·Filed 1982·Granted Jul 10, 1984·17 cites·23 claims
- 2965US4553100ACounter-address memory for multi-channel timing signalsTAKEDA RIKEN IND CO LTD·Filed 1983·Granted Nov 12, 1985·14 cites·22 claims
- 3065US4544884APeriod and frequency measuring instrumentTAKEDA RIKEN IND CO LTD·Filed 1983·Granted Oct 1, 1985·15 cites·6 claims
- 3164US4654848AMulti-trigger logic analyzerTAKEDA RIKEN IND CO LTD·Filed 1985·Granted Mar 31, 1987·34 cites·9 claims
- 3262US4715501AIC test equipmentTAKEDA RIKEN IND CO LTD·Filed 1985·Granted Dec 29, 1987·16 cites·8 claims
- 3362US4367437AReference voltage generatorTAKEDA RIKEN IND CO LTD·Filed 1980·Granted Jan 4, 1983·21 cites·32 claims
- 3462US4315254ASelf-compensating A-D converterTAKEDA RIKEN IND CO LTD·Filed 1980·Granted Feb 9, 1982·22 cites·9 claims
- 3561US4459560APlural phase locked loop frequency synthesizerTAKEDA RIKEN IND CO LTD·Filed 1982·Granted Jul 10, 1984·17 cites·17 claims
- 3661US4370011AContact drive assembly for use with electronic part test equipmentTAKEDA RIKEN IND CO LTD·Filed 1980·Granted Jan 25, 1983·19 cites·9 claims
- 3760US4583041ALogic circuit test systemTAKEDA RIKEN IND CO LTD·Filed 1984·Granted Apr 15, 1986·16 cites·9 claims
- 3859US4670879APattern generatorTAKEDA RIKEN IND CO LTD·Filed 1985·Granted Jun 2, 1987·19 cites·8 claims
- 3958US4559521ACalibration of a multi-slope A-D converterTAKEDA RIKEN IND CO LTD·Filed 1982·Granted Dec 17, 1985·16 cites·9 claims
- 4058US4354176AA-D Converter with fine resolutionTAKEDA RIKEN IND CO LTD·Filed 1980·Granted Oct 12, 1982·14 cites·17 claims
- 4157US4574271AMulti-slope analog-to-digital converterTAKEDA RIKEN IND CO LTD·Filed 1982·Granted Mar 4, 1986·15 cites·28 claims
- 4257US4488123AFrequency synthesizerTAKEDA RIKEN IND CO LTD·Filed 1981·Granted Dec 11, 1984·15 cites·15 claims
- 4357US4468614AAverage frequency measuring apparatusTAKEDA RIKEN IND CO LTD·Filed 1982·Granted Aug 28, 1984·14 cites·24 claims
- 4455US4620147ASignal detectorTAKEDA RIKEN IND CO LTD·Filed 1984·Granted Oct 28, 1986·12 cites·19 claims
- 4555US4573120AI/O Control system for data transmission and reception between central processor and I/O unitsTAKEDA RIKEN IND CO LTD·Filed 1983·Granted Feb 25, 1986·24 cites·15 claims
- 4652US4513256ASwept frequency signal generatorTAKEDA RIKEN IND CO LTD·Filed 1983·Granted Apr 23, 1985·12 cites·11 claims
- 4747US4701918ALogic analyzerTAKEDA RIKEN IND CO LTD·Filed 1985·Granted Oct 20, 1987·16 cites·3 claims
- 4847US4680540ADevice for measuring average frequenciesTAKEDA RIKEN IND CO LTD·Filed 1984·Granted Jul 14, 1987·10 cites·22 claims
- 4947US4611926ATime interval measuring instrumentTAKEDA RIKEN IND CO LTD·Filed 1984·Granted Sep 16, 1986·9 cites·18 claims
- 5046US4460879AVariable tuning deviceTAKEDA RIKEN IND CO LTD·Filed 1981·Granted Jul 17, 1984·8 cites·12 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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