Inventor
UEDA AKITERU
JP10 patents
Patents
10 patentsUS4688162AAug 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
US5105143AApr 14, 1992
Control system for automotive charging generator
HITACHI LTD22 citations92
US5023538AJun 11, 1991
PWM inverter apparatus for controlling rotating magnetic flux in a.c. motors
HITACHI LTD22 citations92
US4672520AJun 9, 1987
Current-source power converting apparatus with self-extinction devices
HITACHI LTD29 citations92
US5424937AJun 13, 1995
Gate drive power source for electric power converter
HITACHI LTD21 citations91
US4767976AAug 30, 1988
Control system for PWM inverter
HITACHI LTD48 citations91
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
US4779709AOct 25, 1988
Apparatus for controlling AC elevators
HITACHI LTD8 citations73
US4629034ADec 16, 1986
Elevator control apparatus
HITACHI LTD13 citations73