Inventor
YONEDA KENZI
JP7 patents
Patents
7 patentsUS5042620AAug 27, 1991
Elevator control system
HITACHI LTD143 citations96
US5010472AApr 23, 1991
Customer participatory elevator control system
HITACHI LTD56 citations95
US4995479AFeb 26, 1991
Display guide apparatus of elevator and its display method
HITACHI LTD144 citations95
US4947965AAug 14, 1990
Group-control method and apparatus for an elevator system with plural cages
HITACHI LTD68 citations95
US5283399AFeb 1, 1994
Group control of elevator system improvement measures
HITACHI LTD43 citations91
US4958707ASep 25, 1990
Elevator control system
HITACHI LTD51 citations89
US5239141AAug 24, 1993
Group management control method and apparatus for an elevator system
HITACHI LTD20 citations81