Inventor

KAMEYAMA TADAO

JP3 patents

Patents

3 patents

US4094385AJun 13, 1978

Levelling apparatus for AC elevator

HITACHI LTD27 citations79

US4101819AJul 18, 1978

Three phase controlling system

HITACHI LTD13 citations72

US4150734AApr 24, 1979

Elevator control apparatus

HITACHI LTD12 citations67