Inventor
HIROTA MITSUHIKO
JP12 patents
⚠️ This page may combine multiple inventors who share the name “HIROTA MITSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FANUC LTD
8 patentsUS4928052AMay 22, 1990
Power supply regenerating circuit
FANUC LTD28 citations92
US4641069AFeb 3, 1987
Plural motor changeover control system
FANUC LTD39 citations92
US4581569AApr 8, 1986
AC motor control apparatus
FANUC LTD27 citations92
US5270632ADec 14, 1993
Driving system for an induction motor having a circuit for generating a slip pulse and a phase shifting pulse
FANUC LTD15 citations73
US4837491AJun 6, 1989
Motor velocity control apparatus
FANUC LTD11 citations73
US4588937AMay 13, 1986
Position control apparatus
FANUC LTD11 citations73
US4499414AFeb 12, 1985
AC Motor control method
FANUC LTD13 citations73
US4626762ADec 2, 1986
AC motor control system
FANUC LTD2 citations62
FUJITSU FANUC LTD
4 patentsUS4207504AJun 10, 1980
Spindle control system
FUJITSU FANUC LTD14 citations74
US4268782AMay 19, 1981
Control system for a DC motor
FUJITSU FANUC LTD14 citations73
US4362976ADec 7, 1982
Driving circuit for DC motor
FUJITSU FANUC LTD12 citations72
US4268781AMay 19, 1981
DC Motor drive system
FUJITSU FANUC LTD19 citations71