Assignee
TOKYO KEIKI KK
JP·117 granted patents·3,523 citations·filing 1973–1992
Top patents by PatentIndex Score
117 records- 0198US4747359AApparatus for controlling the turn of shipTOKYO KEIKI KK·Filed 1986·Granted May 31, 1988·99 cites·6 claims
- 0296US4930358AMethod of and apparatus for measuring flow velocity by using ultrasonic wavesTOKYO KEIKI KK·Filed 1988·Granted Jun 5, 1990·142 cites·6 claims
- 0392US4937795AAccess alarming method and apparatus for working vehicleTOKYO KEIKI KK·Filed 1988·Granted Jun 26, 1990·83 cites·19 claims
- 0491US4809426AInformation processing apparatus of tool holderTOKYO KEIKI KK·Filed 1986·Granted Mar 7, 1989·72 cites·13 claims
- 0590US4924171ASystem for supplying power source by electromagnetic induction couplingTOKYO KEIKI KK·Filed 1988·Granted May 8, 1990·147 cites·5 claims
- 0690US4691659AApparatus for steering joystick of shipTOKYO KEIKI KK·Filed 1986·Granted Sep 8, 1987·103 cites·5 claims
- 0789US4953590AElectromagnetic directional control valveTOKYO KEIKI KK·Filed 1989·Granted Sep 4, 1990·37 cites·7 claims
- 0888US4673254ABack-reflection type light diffusing apparatusTOKYO KEIKI KK·Filed 1986·Granted Jun 16, 1987·93 cites·12 claims
- 0987US4288337ALightweight materials having a high dielectric constant and their method of manufactureTOKYO KEIKI KK·Filed 1979·Granted Sep 8, 1981·59 cites·12 claims
- 1085US5023788AControl apparatus of working robot to flatten and finish the concreted floorTOKYO KEIKI KK·Filed 1990·Granted Jun 11, 1991·122 cites·7 claims
- 1184US4886422AControl apparatus of variable delivery pumpTOKYO KEIKI KK·Filed 1988·Granted Dec 12, 1989·63 cites·4 claims
- 1284US4821198AApparatus for reading out work machining data written in a memory module attached to a pallet when the pallet is moved to a machine toolTOKYO KEIKI KK·Filed 1987·Granted Apr 11, 1989·52 cites·8 claims
- 1383US5070500AMemory package system utilizing inductive coupling between memory module and read/write unitTOKYO KEIKI KK·Filed 1989·Granted Dec 3, 1991·64 cites·16 claims
- 1483US4953123AMemory system to perform data transfer by a contactless electromagnetic induction coupling system using induction coilsTOKYO KEIKI KK·Filed 1989·Granted Aug 28, 1990·46 cites·6 claims
- 1583US4779837ARemote control poppet valveTOKYO KEIKI KK·Filed 1987·Granted Oct 25, 1988·35 cites·12 claims
- 1682US3982554AElectromagnetic flapper valveTOKYO KEIKI KK·Filed 1975·Granted Sep 28, 1976·32 cites·9 claims
- 1780US5026959AMicrowave radiator for warming therapyTOKYO KEIKI KK·Filed 1989·Granted Jun 25, 1991·201 cites·17 claims
- 1880US4856177AAutomatic tool changer with electromagnetically readable tool holder having an electromagnetically coupling stopper for numerical controlTOKYO KEIKI KK·Filed 1988·Granted Aug 15, 1989·37 cites·4 claims
- 1979US4792676AGyro apparatus with a vibration portionTOKYO KEIKI KK·Filed 1986·Granted Dec 20, 1988·45 cites·13 claims
- 2079US4298318ARotary valve for fluid motor or pumpTOKYO KEIKI KK·Filed 1979·Granted Nov 3, 1981·32 cites·7 claims
- 2179USD254778SUltrasonic wave thickness meterTOKYO KEIKI KK·Filed 1978·Granted Apr 22, 1980·17 cites·1 claims
- 2278US5023887AData transmission system using spread spectrum communicationTOKYO KEIKI KK·Filed 1990·Granted Jun 11, 1991·97 cites·8 claims
- 2378US4858103AFluid valve control system for controlling fluid pressure or flowTOKYO KEIKI KK·Filed 1984·Granted Aug 15, 1989·33 cites·6 claims
- 2477US4866616AInformation recording apparatus for vehiclesTOKYO KEIKI KK·Filed 1988·Granted Sep 12, 1989·106 cites·6 claims
- 2576US4857869AHigh frequency push-pull transformerTOKYO KEIKI KK·Filed 1988·Granted Aug 15, 1989·23 cites·12 claims
- 2675US5008486AElectromagnetic wave shielding panels and wall structureTOKYO KEIKI KK·Filed 1989·Granted Apr 16, 1991·35 cites·14 claims
- 2774US4901042AHigh frequency power dividerTOKYO KEIKI KK·Filed 1988·Granted Feb 13, 1990·22 cites·6 claims
- 2874US4896964ASystem for measuring irregularities of road surfaceTOKYO KEIKI KK·Filed 1987·Granted Jan 30, 1990·32 cites·14 claims
- 2974US4868520AHigh-frequency power synthesizing apparatusTOKYO KEIKI KK·Filed 1987·Granted Sep 19, 1989·20 cites·32 claims
- 3072US4763072AMagnetic azimuth detectorTOKYO KEIKI KK·Filed 1986·Granted Aug 9, 1988·36 cites·5 claims
- 3171US4744372AHeating apparatus and method for hyperthermiaTOKYO KEIKI KK·Filed 1985·Granted May 17, 1988·80 cites·10 claims
- 3270US5053582AElectromagnetic waves shield tapeTOKYO KEIKI KK·Filed 1990·Granted Oct 1, 1991·35 cites·3 claims
- 3370US4878754AMethod of and apparatus for measuring irregularities of road surfaceTOKYO KEIKI KK·Filed 1987·Granted Nov 7, 1989·28 cites·11 claims
- 3470USD277006SOptical character readerTOKYO KEIKI KK·Filed 1982·Granted Jan 1, 1985·13 cites·1 claims
- 3570US4047175ATelevision antenna directing and tracking system for television program network between air-borne and ground officesTOKYO KEIKI KK·Filed 1976·Granted Sep 6, 1977·30 cites·11 claims
- 3667US5101856AElectromagnetic directional control valveTOKYO KEIKI KK·Filed 1990·Granted Apr 7, 1992·24 cites·4 claims
- 3767US4965503APositional information generating apparatus and code means thereforTOKYO KEIKI KK·Filed 1989·Granted Oct 23, 1990·23 cites·9 claims
- 3867US4741348AHeating apparatus for hyperthermiaTOKYO KEIKI KK·Filed 1985·Granted May 3, 1988·79 cites·15 claims
- 3967US4545248AUltrasonic thickness gaugeTOKYO KEIKI KK·Filed 1984·Granted Oct 8, 1985·21 cites·3 claims
- 4066US4706703AFluid control valveTOKYO KEIKI KK·Filed 1986·Granted Nov 17, 1987·29 cites·2 claims
- 4166US4694696AVibration-type gyro apparatusTOKYO KEIKI KK·Filed 1985·Granted Sep 22, 1987·28 cites·3 claims
- 4265US4891483AHeating apparatus for hyperthermiaTOKYO KEIKI KK·Filed 1986·Granted Jan 2, 1990·82 cites·18 claims
- 4365US4855729ACommunication control system of fluid control valveTOKYO KEIKI KK·Filed 1987·Granted Aug 8, 1989·22 cites·4 claims
- 4465US4833593AMethod for preparing information tables for a digital valve control apparatusTOKYO KEIKI KK·Filed 1984·Granted May 23, 1989·21 cites·4 claims
- 4565US4831544AAttitude and heading reference detecting apparatusTOKYO KEIKI KK·Filed 1987·Granted May 16, 1989·28 cites·4 claims
- 4664US4649748AAccelerometerTOKYO KEIKI KK·Filed 1985·Granted Mar 17, 1987·19 cites·6 claims
- 4763US5009103AUltrasonic thickness measuring method and apparatusTOKYO KEIKI KK·Filed 1989·Granted Apr 23, 1991·19 cites·8 claims
- 4863US4528491APulse motor control apparatusTOKYO KEIKI KK·Filed 1983·Granted Jul 9, 1985·20 cites·5 claims
- 4962US5128972AMemory package systemTOKYO KEIKI KK·Filed 1990·Granted Jul 7, 1992·24 cites·6 claims
- 5059US5231997AHeating apparatus and method for hyperthermiaTOKYO KEIKI KK·Filed 1991·Granted Aug 3, 1993·60 cites·11 claims
Showing the top 50 of 117 patent records by PatentIndex Score.
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