Assignee
SEIKO INSTR & ELECTRONICS
450 granted patents·7,740 citations·filing 1973–1996
Top patents by PatentIndex Score
450 records- 0198US4622656ANon-volatile semiconductor memorySEIKO INSTR & ELECTRONICS·Filed 1983·Granted Nov 11, 1986·137 cites·27 claims
- 0297US4789804AAnalytical device and method utilizing a piezoelectric crystal biosensorSEIKO INSTR & ELECTRONICS·Filed 1986·Granted Dec 6, 1988·211 cites·52 claims
- 0397US4309627ADetecting circuit for a power source voltageSEIKO INSTR & ELECTRONICS·Filed 1979·Granted Jan 5, 1982·149 cites·4 claims
- 0497US4061929ACircuit for obtaining DC voltage higher than power source voltageSEIKO INSTR & ELECTRONICS·Filed 1976·Granted Dec 6, 1977·94 cites·7 claims
- 0596US4680580AActive matrix-addressed liquid-crystal display deviceSEIKO INSTR & ELECTRONICS·Filed 1983·Granted Jul 14, 1987·134 cites·20 claims
- 0696US4624737AProcess for producing thin-film transistorSEIKO INSTR & ELECTRONICS·Filed 1985·Granted Nov 25, 1986·132 cites·4 claims
- 0796US4178566AQuartz crystal tuning fork vibrator for a crystal oscillatorSEIKO INSTR & ELECTRONICS·Filed 1978·Granted Dec 11, 1979·43 cites·9 claims
- 0895US4721058APaper cutting unit of automatic drawing machinesSEIKO INSTR & ELECTRONICS·Filed 1985·Granted Jan 26, 1988·84 cites·13 claims
- 0995US4447753AMiniature GT-cut quartz resonatorSEIKO INSTR & ELECTRONICS·Filed 1981·Granted May 8, 1984·80 cites·15 claims
- 1094US4609930AThin film transistorSEIKO INSTR & ELECTRONICS·Filed 1984·Granted Sep 2, 1986·79 cites·8 claims
- 1194US4095405AElectronic watchSEIKO INSTR & ELECTRONICS·Filed 1976·Granted Jun 20, 1978·46 cites·5 claims
- 1293US4659971ARobot controlling systemSEIKO INSTR & ELECTRONICS·Filed 1985·Granted Apr 21, 1987·232 cites·22 claims
- 1393US4350918AContour vibration mode piezoelectric resonatorSEIKO INSTR & ELECTRONICS·Filed 1979·Granted Sep 21, 1982·59 cites·24 claims
- 1493US4239040ACapsule for medical useSEIKO INSTR & ELECTRONICS·Filed 1977·Granted Dec 16, 1980·259 cites·9 claims
- 1591US4498025ATuning forkSEIKO INSTR & ELECTRONICS·Filed 1981·Granted Feb 5, 1985·38 cites·20 claims
- 1691US4484382AMethod of adjusting resonant frequency of a coupling resonatorSEIKO INSTR & ELECTRONICS·Filed 1982·Granted Nov 27, 1984·52 cites·13 claims
- 1791US4395139ATemperature detecting deviceSEIKO INSTR & ELECTRONICS·Filed 1981·Granted Jul 26, 1983·60 cites·10 claims
- 1891US4045691ALevel shift circuitSEIKO INSTR & ELECTRONICS·Filed 1976·Granted Aug 30, 1977·31 cites·4 claims
- 1990US4566847AIndustrial robotSEIKO INSTR & ELECTRONICS·Filed 1983·Granted Jan 28, 1986·90 cites·7 claims
- 2090US4041954ASystem for detecting information in an artificial cardiac pacemakerSEIKO INSTR & ELECTRONICS·Filed 1975·Granted Aug 16, 1977·187 cites·22 claims
- 2189US4326278AElectronic timepieceSEIKO INSTR & ELECTRONICS·Filed 1978·Granted Apr 20, 1982·41 cites·12 claims
- 2288US4693563AFerro-electric liquid crystal electro-optical deviceSEIKO INSTR & ELECTRONICS·Filed 1985·Granted Sep 15, 1987·76 cites·20 claims
- 2388US4601097AMethod of producing thin-film transistor arraySEIKO INSTR & ELECTRONICS·Filed 1984·Granted Jul 22, 1986·49 cites·7 claims
- 2488US4511259ABar code input electronic timepieceSEIKO INSTR & ELECTRONICS·Filed 1983·Granted Apr 16, 1985·61 cites·12 claims
- 2588US4044546ADigital liquid crystal electronic timepiece with color coded displaySEIKO INSTR & ELECTRONICS·Filed 1976·Granted Aug 30, 1977·32 cites·6 claims
- 2688US4017155ALiquid crystal display deviceSEIKO INSTR & ELECTRONICS·Filed 1974·Granted Apr 12, 1977·41 cites·7 claims
- 2786US4205369AVoltage dropping circuitSEIKO INSTR & ELECTRONICS·Filed 1978·Granted May 27, 1980·32 cites·3 claims
- 2886US3984176AReflective plates for a liquid crystal display deviceSEIKO INSTR & ELECTRONICS·Filed 1975·Granted Oct 5, 1976·47 cites·10 claims
- 2985USD304930SPortable data input terminalSEIKO INSTR & ELECTRONICS·Filed 1986·Granted Dec 5, 1989·39 cites·1 claims
- 3085US4234944AAlarm electronic timepieceSEIKO INSTR & ELECTRONICS·Filed 1978·Granted Nov 18, 1980·23 cites·4 claims
- 3185US4157552APen holding device for an automatic drafting deviceSEIKO INSTR & ELECTRONICS·Filed 1977·Granted Jun 5, 1979·34 cites·4 claims
- 3285US4076496AColoring method for synthetic resinSEIKO INSTR & ELECTRONICS·Filed 1975·Granted Feb 28, 1978·21 cites·9 claims
- 3384US4780759ASampling clock generation circuit of video signalSEIKO INSTR & ELECTRONICS·Filed 1986·Granted Oct 25, 1988·48 cites·11 claims
- 3484US4699850AOrnamental partSEIKO INSTR & ELECTRONICS·Filed 1986·Granted Oct 13, 1987·46 cites·31 claims
- 3584US4011001ALiquid crystal deviceSEIKO INSTR & ELECTRONICS·Filed 1975·Granted Mar 8, 1977·46 cites·6 claims
- 3683US4704559AMatrix type multi-color display deviceSEIKO INSTR & ELECTRONICS·Filed 1986·Granted Nov 3, 1987·52 cites·2 claims
- 3782US4771202ATuning fork resonatorSEIKO INSTR & ELECTRONICS·Filed 1983·Granted Sep 13, 1988·33 cites·19 claims
- 3882US4610507AColor liquid crystal display device having multicolor polarizersSEIKO INSTR & ELECTRONICS·Filed 1984·Granted Sep 9, 1986·48 cites·3 claims
- 3982US4551031AElectronic clinical thermometerSEIKO INSTR & ELECTRONICS·Filed 1983·Granted Nov 5, 1985·48 cites·15 claims
- 4082US4522691AMethod for manufacturing a multicolor filter and a multicolor display deviceSEIKO INSTR & ELECTRONICS·Filed 1983·Granted Jun 11, 1985·33 cites·50 claims
- 4182US4053289AGrinding method and apparatus with metal removal rate controlSEIKO INSTR & ELECTRONICS·Filed 1975·Granted Oct 11, 1977·30 cites·6 claims
- 4282US3978296ASwitching system for an electronic timepieceSEIKO INSTR & ELECTRONICS·Filed 1975·Granted Aug 31, 1976·24 cites·2 claims
- 4381US4514666APulse width modulation d.c. servo motor driving circuitSEIKO INSTR & ELECTRONICS·Filed 1983·Granted Apr 30, 1985·35 cites·4 claims
- 4481US4095411AElectronic wristwatch having an alarm deviceSEIKO INSTR & ELECTRONICS·Filed 1976·Granted Jun 20, 1978·18 cites·6 claims
- 4580US4705358ASubstrate for active matrix displaySEIKO INSTR & ELECTRONICS·Filed 1985·Granted Nov 10, 1987·39 cites·9 claims
- 4680US4147052AHardness testerSEIKO INSTR & ELECTRONICS·Filed 1977·Granted Apr 3, 1979·31 cites·6 claims
- 4780US4104865AElectronic timepiece having an alarm deviceSEIKO INSTR & ELECTRONICS·Filed 1976·Granted Aug 8, 1978·34 cites·7 claims
- 4879US4519930AElectrochromic display deviceSEIKO INSTR & ELECTRONICS·Filed 1983·Granted May 28, 1985·44 cites·25 claims
- 4979US4417263ASemiconductor deviceSEIKO INSTR & ELECTRONICS·Filed 1981·Granted Nov 22, 1983·32 cites·2 claims
- 5079US4312059AElectronic timepieceSEIKO INSTR & ELECTRONICS·Filed 1978·Granted Jan 19, 1982·23 cites·22 claims
Showing the top 50 of 450 patent records by PatentIndex Score.
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