Inventor
FUJINO ATSUYA
JP16 patents
Patents
16 patentsUS5892190AApr 6, 1999
Method and system of controlling elevators and method and apparatus of inputting requests to the control system
HITACHI LTD49 citations96
US5307903AMay 3, 1994
Method and system of controlling elevators and method and apparatus of inputting requests to the control system
HITACHI LTD54 citations96
US4947965AAug 14, 1990
Group-control method and apparatus for an elevator system with plural cages
HITACHI LTD68 citations95
US5258586ANov 2, 1993
Elevator control system with image pickups in hall waiting areas and elevator cars
HITACHI LTD88 citations94
US4989694AFeb 5, 1991
Elevator group supervisory system
HITACHI LTD56 citations94
US6408986B1Jun 25, 2002
Charger for elevator call devices
HITACHI LTD25 citations92
US5283399AFeb 1, 1994
Group control of elevator system improvement measures
HITACHI LTD43 citations91
US7562746B2Jul 21, 2009
Method, system, and display for elevator allocation using multi-dimensional coordinates
HITACHI LTD11 citations81
US5239141AAug 24, 1993
Group management control method and apparatus for an elevator system
HITACHI LTD20 citations81
US5409085AApr 25, 1995
Group control elevator system for automatically adjusting elevator operation based on a evaluation function
HITACHI LTD19 citations73
US7426982B2Sep 23, 2008
Elevator group supervisory control system
HITACHI LTD8 citations72
US6481531B1Nov 19, 2002
Elevator communications apparatus
HITACHI LTD13 citations72
US11560288B2Jan 24, 2023
Elevator operation management system and elevator operation management method
HITACHI LTD2 citations70
US7740111B2Jun 22, 2010
Elevator group supervisory control system with route preparation section
HITACHI LTD4 citations61
US7730999B2Jun 8, 2010
Elevator group supervisory control system using target route preparation
HITACHI LTD1 citations61
US7097000B2Aug 29, 2006
Elevator apparatus
HITACHI LTD6 citations56