Inventor
NANDOH KENJI
JP9 patents
Patents
9 patentsUS4688162AAug 18, 1987
Rectifier control apparatus with improved power factor
HITACHI LTD53 citations94
US4451112AMay 29, 1984
Method and apparatus for controlling AC motor
HITACHI LTD69 citations94
US4527214AJul 2, 1985
Power inverter with overload protection apparatus
HITACHI LTD39 citations92
US4480299AOct 30, 1984
Method of controlling the output voltage of a pulse width modulation inverter
HITACHI LTD32 citations92
US4767976AAug 30, 1988
Control system for PWM inverter
HITACHI LTD48 citations91
US6058036AMay 2, 2000
Inverter apparatus having operation specifications determined by type of I/O block which is connected to basic control unit
HITACHI LTD27 citations89
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
US5121283AJun 9, 1992
Overcurrent protective circuit for electrostatic self-turn-off devices
HITACHI LTD9 citations72
US4622628ANov 11, 1986
PWM inverter apparatus with digital control
HITACHI LTD11 citations71