Inventor
MUTOH NOBUYOSHI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “MUTOH NOBUYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
26 patentsUS5549172AAug 27, 1996
Electric vehicle drive system and drive method
HITACHI LTD201 citations99
US5414339AMay 9, 1995
Electric vehicle control system
HITACHI LTD139 citations98
US5357181AOct 18, 1994
Failure detection method for electric vehicles and fail-safe control method using this method
HITACHI LTD123 citations98
US5583406ADec 10, 1996
Control method and system for regeneration braking of an electric vehicle
HITACHI LTD89 citations96
US5481168AJan 2, 1996
Electric vehicle torque controller
HITACHI LTD67 citations96
US5210479AMay 11, 1993
Drive circuit for an insulated gate transistor having overcurrent detecting and adjusting circuits
HITACHI LTD58 citations94
US4688162AAug 18, 1987
Rectifier control apparatus with improved power factor
HITACHI LTD53 citations94
US4599549AJul 8, 1986
Method and apparatus for controlling PWM inverters
HITACHI LTD62 citations94
US5677604AOct 14, 1997
Control system and control method for electric automobile
HITACHI LTD34 citations93
US5534764AJul 9, 1996
Vehicle driving control system having function for suppressing vibration
HITACHI LTD44 citations93
US5532571AJul 2, 1996
Control apparatus for induction motor
HITACHI LTD26 citations93
US5650700AJul 22, 1997
Electric vehicle torque controller
HITACHI LTD43 citations92
US5557181ASep 17, 1996
Brake control apparatus for electric motor vehicle
HITACHI LTD25 citations92
US5453972ASep 26, 1995
Optical disk apparatus
HITACHI LTD34 citations92
US5432644AJul 11, 1995
Disk drive unit having motor components in a compact arrangement
HITACHI LTD48 citations92
US5298841AMar 29, 1994
Apparatus for controlling the speed of a moving object
HITACHI LTD26 citations92
US5184057AFeb 2, 1993
Control method and device for ac motor
HITACHI LTD35 citations92
US5023538AJun 11, 1991
PWM inverter apparatus for controlling rotating magnetic flux in a.c. motors
HITACHI LTD22 citations92
US5019773AMay 28, 1991
Method and apparatus for detecting positions and/or speed of a moving body using two phase signals
HITACHI LTD33 citations92
US4965504AOct 23, 1990
Control apparatus for inverter for driving AC motor
HITACHI LTD30 citations92
US4767976AAug 30, 1988
Control system for PWM inverter
HITACHI LTD48 citations91
US5175479ADec 29, 1992
Moving body position control apparatus and signal reproducing apparatus
HITACHI LTD20 citations82
US4562524ADec 31, 1985
Control apparatus for PWM inverter
HITACHI LTD20 citations81
US4779183AOct 18, 1988
Method and apparatus for selectively controlling an operation mode of a PWM inverter between an asychronous mode and a synchronous mode modulation
HITACHI LTD22 citations80
US5245232ASep 14, 1993
Linear actuator
HITACHI LTD19 citations74
US5053690AOct 1, 1991
Control method of pulse width modulation inverter and pulse width modulation inverter system
HITACHI LTD18 citations70