Assignee
TOKO INC
JP·242 granted patents·23 pending applications·3,805 citations·filing 1974–2017
Top patents by PatentIndex Score
265 records- 0197US5812045AInverter transformerTOKO INC·Filed 1996·Granted Sep 22, 1998·181 cites·3 claims
- 0294US7132905B2Input/output coupling structure for dielectric waveguide having conductive coupling patterns separated by a spacerTOKO INC·Filed 2004·Granted Nov 7, 2006·59 cites·2 claims
- 0394US5959443AController circuit for controlling a step down switching regulator operating in discontinuous conduction modeTOKO INC·Filed 1997·Granted Sep 28, 1999·117 cites·37 claims
- 0493US6677837B2Dielectric waveguide filter and mounting structure thereofTOKO INC·Filed 2002·Granted Jan 13, 2004·64 cites·7 claims
- 0592US10589364B2DrillTOKO INC·Filed 2017·Granted Mar 17, 2020·6 cites·4 claims
- 0692US6977560B2Input/output coupling structure for dielectric waveguide resonatorTOKO INC·Filed 2003·Granted Dec 20, 2005·39 cites·4 claims
- 0791US4680528ABattery charging deviceTOKO INC·Filed 1986·Granted Jul 14, 1987·173 cites·2 claims
- 0890US5359313AStep-up transformerTOKO INC·Filed 1992·Granted Oct 25, 1994·106 cites·1 claims
- 0989US9647340B2Three-axis antennaTOKO INC·Filed 2014·Granted May 9, 2017·9 cites·6 claims
- 1088US7042411B2Triaxial antenna coilTOKO INC·Filed 2004·Granted May 9, 2006·60 cites·5 claims
- 1188US4263643ASwitching regulator provided with error amplifier circuit having overcurrent protecting functionTOKO INC·Filed 1979·Granted Apr 21, 1981·40 cites·3 claims
- 1287US9190737B2Waveguide slot antennaTOKO INC·Filed 2012·Granted Nov 17, 2015·8 cites·5 claims
- 1387US5436550AAC-DC converter having saw-tooth wave generating circuit in active filterTOKO INC·Filed 1994·Granted Jul 25, 1995·80 cites·5 claims
- 1485US10242796B2Method for manufacturing a surface-mount inductorTOKO INC·Filed 2017·Granted Mar 26, 2019·2 cites·3 claims
- 1585US9666363B2Surface-mount inductor and method for manufacturing the sameTOKO INC·Filed 2015·Granted May 30, 2017·2 cites·1 claims
- 1685US6462509B1Non-contact chargerTOKO INC·Filed 2001·Granted Oct 8, 2002·66 cites·4 claims
- 1785US4272805ASwitching regulator provided with charge-discharge circuit having overcurrent protecting function and soft-start functionTOKO INC·Filed 1979·Granted Jun 9, 1981·39 cites·2 claims
- 1884US7009470B2Waveguide-type dielectric filterTOKO INC·Filed 2004·Granted Mar 7, 2006·23 cites·8 claims
- 1983US10622126B2Metal magnetic material and electronic componentTOKO INC·Filed 2015·Granted Apr 14, 2020·2 cites·12 claims
- 2083US8890646B2Laminated-type electronic componentTOKO INC·Filed 2013·Granted Nov 18, 2014·5 cites·4 claims
- 2183US4430595APiezo-electric push button switchTOKO INC·Filed 1982·Granted Feb 7, 1984·76 cites·4 claims
- 2282US6600362B1Method and circuits for parallel sensing of current in a field effect transistor (FET)TOKO INC·Filed 2002·Granted Jul 29, 2003·42 cites·4 claims
- 2382US5999066AInterface module for a sending section and a receiving sectionTOKO INC·Filed 1997·Granted Dec 7, 1999·52 cites·11 claims
- 2482US5515257AAC-DC converterTOKO INC·Filed 1994·Granted May 7, 1996·60 cites·3 claims
- 2582US4172276AFlyback type switching power source deviceTOKO INC·Filed 1977·Granted Oct 23, 1979·24 cites·6 claims
- 2681US10049809B2Surface-mount inductorTOKO INC·Filed 2015·Granted Aug 14, 2018·2 cites·16 claims
- 2781US5680034APWM controller for resonant convertersTOKO INC·Filed 1995·Granted Oct 21, 1997·65 cites·9 claims
- 2880US9520653B2Waveguide slot antennaTOKO INC·Filed 2015·Granted Dec 13, 2016·3 cites·5 claims
- 2980US5440225ACore for coil device such as power transformers, choke coils used in switching power supplyTOKO INC·Filed 1993·Granted Aug 8, 1995·32 cites·13 claims
- 3080US4814724AGain control circuit of current mirror circuit typeTOKO INC·Filed 1987·Granted Mar 21, 1989·30 cites·5 claims
- 3179US6850127B2Laminated electronic componentTOKO INC·Filed 2002·Granted Feb 1, 2005·25 cites·17 claims
- 3278US8368482B2Dielectric waveguide-microstrip transition including a cavity coupling structureTOKO INC·Filed 2009·Granted Feb 5, 2013·7 cites·4 claims
- 3378US6909249B2Switching constant-current power supplyTOKO INC·Filed 2003·Granted Jun 21, 2005·45 cites·8 claims
- 3478US5828206ASerial control type voltage regulatorTOKO INC·Filed 1996·Granted Oct 27, 1998·45 cites·4 claims
- 3577US6164881AMachine toolTOKO INC·Filed 1997·Granted Dec 26, 2000·61 cites·18 claims
- 3677US5440473AAC-DC converterTOKO INC·Filed 1994·Granted Aug 8, 1995·49 cites·6 claims
- 3777US4449175ASwitching regulatorTOKO INC·Filed 1982·Granted May 15, 1984·25 cites·3 claims
- 3875US6556106B1Dielectric filterTOKO INC·Filed 2000·Granted Apr 29, 2003·12 cites·2 claims
- 3975US6266254B1Switching power circuitTOKO INC·Filed 2000·Granted Jul 24, 2001·32 cites·2 claims
- 4075US5457622AAC-DC converterTOKO INC·Filed 1993·Granted Oct 10, 1995·35 cites·5 claims
- 4175US4442397ADirect current power circuitTOKO INC·Filed 1982·Granted Apr 10, 1984·27 cites·13 claims
- 4274US6201463B1Inverter transformerTOKO INC·Filed 1999·Granted Mar 13, 2001·28 cites·2 claims
- 4374US6081075ADC to AC switching circuit for driving an electroluminescent lamp exhibiting capactive loading characteristicsTOKO INC·Filed 1999·Granted Jun 27, 2000·45 cites·22 claims
- 4474US5991313AVideo transmission apparatusTOKO INC·Filed 1997·Granted Nov 23, 1999·55 cites·2 claims
- 4574US4320534ALoudness control circuitTOKO INC·Filed 1980·Granted Mar 16, 1982·21 cites·3 claims
- 4674US4245207AMiniature high frequency coil assembly or transformerTOKO INC·Filed 1978·Granted Jan 13, 1981·18 cites·5 claims
- 4773US9165710B2Method of producing a surface-mount inductorTOKO INC·Filed 2013·Granted Oct 20, 2015·3 cites·4 claims
- 4873US6011382ACircuit and method for directly regulating the output voltage of an electroluminescent lamp driverTOKO INC·Filed 1998·Granted Jan 4, 2000·41 cites·12 claims
- 4973US4629962ABattery charging deviceTOKO INC·Filed 1985·Granted Dec 16, 1986·51 cites·3 claims
- 5072US9734941B2Surface-mount inductorTOKO INC·Filed 2015·Granted Aug 15, 2017·1 cites·4 claims
Showing the top 50 of 265 patent records by PatentIndex Score.
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