Inventor · disambiguated record
Toru Masuda
Also filed as: MASUDA TORU
42 granted patents·5 pending applications·842 citations·filing 1977–2022
98Inventor score
Files withHITACHI LTD12HOSIDEN ELECTRONICS CO11HITACHI POWER SEMICONDUCTOR DEVICE LTD6RENESAS TECH CORP5RENESAS ELECTRONICS CORP4
Top patents by PatentIndex Score
47 records- 0198US7518458B2Oscillator and data processing equipment using the same and voltage control oscillator and data processing equipment using voltage control oscillatorRENESAS TECH CORP·Filed 2006·Granted Apr 14, 2009·54 cites·18 claims
- 0298US4393283AJack with plug actuated slide switchHOSIDEN ELECTRONICS CO·Filed 1981·Granted Jul 12, 1983·120 cites·5 claims
- 0396US7839229B2Voltage-controlled oscillator and communication device using the sameHITACHI LTD·Filed 2007·Granted Nov 23, 2010·35 cites·24 claims
- 0494US7592877B2Variable frequency oscillator and communication circuit with itHITACHI LTD·Filed 2007·Granted Sep 22, 2009·32 cites·6 claims
- 0593US7821335B2Semiconductor integrated circuit with variable gain amplifierRENESAS ELECTRONICS CORP·Filed 2008·Granted Oct 26, 2010·29 cites·20 claims
- 0691US7589596B2Voltage controlled oscillator and wireless transceiver using the sameRENESAS TECH CORP·Filed 2006·Granted Sep 15, 2009·20 cites·9 claims
- 0789US7902934B2Variable inductor, and oscillator and communication system using the sameRENESAS ELECTRONICS CORP·Filed 2005·Granted Mar 8, 2011·15 cites·8 claims
- 0889US4426558AJack having an insulating contact operatorHOSIDEN ELECTRONICS CO·Filed 1981·Granted Jan 17, 1984·57 cites·7 claims
- 0986US7642618B2Semiconductor devices with inductorsRENESAS TECH CORP·Filed 2005·Granted Jan 5, 2010·16 cites·18 claims
- 1085US8212615B2Variable-gain amplifier circuit and wireless communication device integrated circuit equipped therewithMASUDA TORU·Filed 2010·Granted Jul 3, 2012·11 cites·14 claims
- 1185US7091757B2Frequency generator and communication systemHITACHI LTD·Filed 2004·Granted Aug 15, 2006·21 cites·19 claims
- 1284US4747790AConnector for printed circuit boardHOSIDEN ELECTRONICS CO·Filed 1986·Granted May 31, 1988·50 cites·5 claims
- 1382USD293432SElectrical connecting plugHOSIDEN ELECTRONICS CO·Filed 1985·Granted Dec 29, 1987·20 cites·1 claims
- 1477US11496041B2Gate drive device, gate drive method, power semiconductor module, and electric power conversion deviceHITACHI POWER SEMICONDUCTOR DEVICE LTD·Filed 2021·Granted Nov 8, 2022·1 cites·9 claims
- 1577US7177612B2Frequency generator and communication system using the sameRENESAS TECH CORP·Filed 2004·Granted Feb 13, 2007·14 cites·14 claims
- 1677US6658217B2Optical receiverHITACHI LTD·Filed 2001·Granted Dec 2, 2003·16 cites·12 claims
- 1776US4659167AJack with recessed contactsHOSIDEN ELECTRONICS CO·Filed 1984·Granted Apr 21, 1987·29 cites·11 claims
- 1875US8121579B2Active mixer circuit and a receiver circuit or a millimeter-wave communication unit using itSHIRAMIZU NOBUHIRO·Filed 2009·Granted Feb 21, 2012·8 cites·20 claims
- 1974US8502614B2Variable inductor, and oscillator and communication system using the sameNAKAMURA TAKAHIRO·Filed 2011·Granted Aug 6, 2013·3 cites·16 claims
- 2074US6304357B1Optical receiverHITACHI LTD·Filed 1998·Granted Oct 16, 2001·43 cites·6 claims
- 2174US5523966AMemory cell and a memory device having reduced soft errorHITACHI LTD·Filed 1995·Granted Jun 4, 1996·36 cites·29 claims
- 2273US4715819AConnector for printed board connectionHOSIDEN ELECTRONICS CO·Filed 1986·Granted Dec 29, 1987·33 cites·13 claims
- 2372US7826814B2Frequency synthesizerRENESAS ELECTRONICS CORP·Filed 2007·Granted Nov 2, 2010·8 cites·11 claims
- 2471US6603029B1Partially protected novel trisphenols and process for production thereofHONSHU CHEMICAL IND·Filed 2000·Granted Aug 5, 2003·7 cites·7 claims
- 2571US5402377ASemiconductor memory device having a controlled auxiliary decoderHITACHI LTD·Filed 1994·Granted Mar 28, 1995·32 cites·7 claims
- 2670US7843287B2Active resonant circuit with resonant-frequency tunabilityRENESAS ELECTRONICS CORP·Filed 2008·Granted Nov 30, 2010·6 cites·15 claims
- 2768US10002858B2Power transistor moduleHITACHI LTD·Filed 2014·Granted Jun 19, 2018·2 cites·18 claims
- 2866US4493526AJackHOSIDEN ELECTRONICS CO·Filed 1983·Granted Jan 15, 1985·21 cites·8 claims
- 2962US11539361B2Semiconductor device signal transmission circuit for drive-control, method of controlling semiconductor device signal transmission circuit for drive-control, semiconductor device, power conversion device, and electric system for railway vehicleHITACHI POWER SEMICONDUCTOR DEVICE LTD·Filed 2021·Granted Dec 27, 2022·0 cites·8 claims
- 3062US10115700B2Power module, electrical power conversion device, and driving device for vehicleHITACHI LTD·Filed 2015·Granted Oct 30, 2018·1 cites·10 claims
- 3161US7098740B2Radio frequency power amplifier and communication systemRENESAS TECH CORP·Filed 2003·Granted Aug 29, 2006·10 cites·6 claims
- 3261US6785477B1Optical receiver using variable negative-capacitance circuitHITACHI LTD·Filed 1998·Granted Aug 31, 2004·21 cites·19 claims
- 3361US5182550AInter-network connection systemFUJITSU LTD·Filed 1990·Granted Jan 26, 1993·44 cites·4 claims
- 3454US10488515B2Acoustic emission wave detection system for a high voltage apparatusHITACHI LTD·Filed 2014·Granted Nov 26, 2019·0 cites·15 claims
- 3550US2008090037A1Laminate For Packaging And Packaging Bag And Bag For Packaging Electronic Material Product Each Comprising The SameSHOWA DENKO PACKAGING CO·Filed 2005·Application pending·0 cites
- 3647US2024290698A1Power semiconductor module and power conversion deviceHITACHI POWER SEMICONDUCTOR DEVICE LTD·Filed 2022·Application pending·0 cites
- 3746US12438115B2Power semiconductor moduleHITACHI POWER SEMICONDUCTOR DEVICE LTD·Filed 2020·Granted Oct 7, 2025·0 cites·10 claims
- 3846US4685212AMethod of manufacturing a jackHOSIDEN ELECTRONICS CO·Filed 1985·Granted Aug 11, 1987·8 cites·17 claims
- 3946US2023282561A1Power semiconductor module and power conversion deviceHITACHI POWER SEMICONDUCTOR DEVICE LTD·Filed 2021·Application pending·0 cites
- 4042US4419753ANetwork connection systemFUJITSU LTD·Filed 1980·Granted Dec 6, 1983·6 cites·8 claims
- 4141US2004213580A1Transmitter and a signal generator in optical transmission systemsHITACHI LTD·Filed 2002·Application pending·0 cites
- 4240USD305117SCassette holder for use in a computerHOSIDEN ELECTRONICS CO·Filed 1986·Granted Dec 19, 1989·3 cites·1 claims
- 4338US10888941B2Power semiconductor moduleHITACHI POWER SEMICONDUCTOR DEVICE LTD·Filed 2018·Granted Jan 12, 2021·0 cites·13 claims
- 4437USRE35039EMethod of manufacturing a jackHOSIDEN ELECTRONICS CO·Filed 1988·Granted Sep 26, 1995·4 cites·18 claims
- 4536US4595805ASwitch structure comprising recessed contactsHOSIDEN ELECTRONICS CO·Filed 1984·Granted Jun 17, 1986·4 cites·10 claims
- 4635US2010179324A1Anti-tumor agent comprising sulphostin or sulphostin-related compound as the active ingredientMICROBIAL CHEM RES FOUND·Filed 2010·Application pending·0 cites
- 4730US4103113AAttendant console control systemFUJITSU LTD·Filed 1977·Granted Jul 25, 1978·2 cites·28 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →