Inventor · disambiguated record
Nobuyoshi Mutoh
Also filed as: MUTOH NOBUYOSHI
29 granted patents·1,354 citations·filing 1984–2004
98Inventor score
Top patents by PatentIndex Score
29 records- 0198US5549172AElectric vehicle drive system and drive methodHITACHI LTD·Filed 1994·Granted Aug 27, 1996·201 cites·24 claims
- 0293US5481168AElectric vehicle torque controllerHITACHI LTD·Filed 1994·Granted Jan 2, 1996·67 cites·31 claims
- 0392US5414339AElectric vehicle control systemHITACHI LTD·Filed 1993·Granted May 9, 1995·139 cites·34 claims
- 0491US5210479ADrive circuit for an insulated gate transistor having overcurrent detecting and adjusting circuitsHITACHI LTD·Filed 1989·Granted May 11, 1993·58 cites·27 claims
- 0590US5357181AFailure detection method for electric vehicles and fail-safe control method using this methodHITACHI LTD·Filed 1993·Granted Oct 18, 1994·123 cites·24 claims
- 0690US4599549AMethod and apparatus for controlling PWM invertersHITACHI LTD·Filed 1985·Granted Jul 8, 1986·62 cites·10 claims
- 0789US5432644ADisk drive unit having motor components in a compact arrangementHITACHI LTD·Filed 1994·Granted Jul 11, 1995·48 cites·11 claims
- 0886US4767976AControl system for PWM inverterHITACHI LTD·Filed 1987·Granted Aug 30, 1988·48 cites·9 claims
- 0984US4688162ARectifier control apparatus with improved power factorHITACHI LTD·Filed 1986·Granted Aug 18, 1987·53 cites·7 claims
- 1082US5650700AElectric vehicle torque controllerHITACHI LTD·Filed 1995·Granted Jul 22, 1997·43 cites·4 claims
- 1182US5583406AControl method and system for regeneration braking of an electric vehicleHITACHI LTD·Filed 1994·Granted Dec 10, 1996·89 cites·15 claims
- 1282US5453972AOptical disk apparatusHITACHI LTD·Filed 1993·Granted Sep 26, 1995·34 cites·4 claims
- 1381US5019773AMethod and apparatus for detecting positions and/or speed of a moving body using two phase signalsHITACHI LTD·Filed 1989·Granted May 28, 1991·33 cites·7 claims
- 1474US4965504AControl apparatus for inverter for driving AC motorHITACHI LTD·Filed 1989·Granted Oct 23, 1990·30 cites·22 claims
- 1570US5245232ALinear actuatorHITACHI LTD·Filed 1992·Granted Sep 14, 1993·19 cites·22 claims
- 1670US4562524AControl apparatus for PWM inverterHITACHI LTD·Filed 1984·Granted Dec 31, 1985·20 cites·5 claims
- 1767US5534764AVehicle driving control system having function for suppressing vibrationHITACHI LTD·Filed 1994·Granted Jul 9, 1996·44 cites·10 claims
- 1867US5184057AControl method and device for ac motorHITACHI LTD·Filed 1990·Granted Feb 2, 1993·35 cites·41 claims
- 1966US5532571AControl apparatus for induction motorHITACHI LTD·Filed 1995·Granted Jul 2, 1996·26 cites·8 claims
- 2065US5298841AApparatus for controlling the speed of a moving objectHITACHI LTD·Filed 1991·Granted Mar 29, 1994·26 cites·11 claims
- 2164US5023538APWM inverter apparatus for controlling rotating magnetic flux in a.c. motorsHITACHI LTD·Filed 1989·Granted Jun 11, 1991·22 cites·15 claims
- 2263US4779183AMethod and apparatus for selectively controlling an operation mode of a PWM inverter between an asychronous mode and a synchronous mode modulationHITACHI LTD·Filed 1987·Granted Oct 18, 1988·22 cites·6 claims
- 2360US5053690AControl method of pulse width modulation inverter and pulse width modulation inverter systemHITACHI LTD·Filed 1989·Granted Oct 1, 1991·18 cites·8 claims
- 2458US5677604AControl system and control method for electric automobileHITACHI LTD·Filed 1994·Granted Oct 14, 1997·34 cites·10 claims
- 2558US5175479AMoving body position control apparatus and signal reproducing apparatusHITACHI LTD·Filed 1991·Granted Dec 29, 1992·20 cites·6 claims
- 2652US7042198B2System using a power converterJAPAN SOC PROMOTION MACH IND·Filed 2002·Granted May 9, 2006·9 cites·27 claims
- 2752US5557181ABrake control apparatus for electric motor vehicleHITACHI LTD·Filed 1993·Granted Sep 17, 1996·25 cites·28 claims
- 2851US6999330B2Power converter and system using the sameUNIV KEIO·Filed 2004·Granted Feb 14, 2006·3 cites·4 claims
- 2941US7342799B2System using power converter, microsurge suppressor and microsurge suppression methodUNIV KEIO·Filed 2004·Granted Mar 11, 2008·3 cites·17 claims
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