Inventor
INABA HIROMI
46 patents
⚠️ This page may combine multiple inventors who share the name “INABA HIROMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
45 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
US6525510B1Feb 25, 2003
Vehicle operating system
HITACHI LTD67 citations95
US6446761B1Sep 10, 2002
Elevator system having wireless transmitting/receiving units
HITACHI LTD53 citations95
US5298697AMar 29, 1994
Apparatus and methods for detecting number of people waiting in an elevator hall using plural image processing means with overlapping fields of view
HITACHI LTD115 citations95
US5408607AApr 18, 1995
Information transfer system
HITACHI LTD67 citations94
US5258586ANov 2, 1993
Elevator control system with image pickups in hall waiting areas and elevator cars
HITACHI LTD88 citations94
US7134530B2Nov 14, 2006
Elevator system utilizing wireless transmission units to exchange control information between elevator car and elevator control unit
HITACHI LTD17 citations92
US6771000B2Aug 3, 2004
Electric rotary machine and power generation systems using the same
HITACHI LTD54 citations92
US6598710B2Jul 29, 2003
Elevator system with wireless elevator control transmit/receive unit
HITACHI LTD14 citations92
US6570358B2May 27, 2003
Control apparatus for alternating-current motor
HITACHI LTD34 citations92
US6408986B1Jun 25, 2002
Charger for elevator call devices
HITACHI LTD25 citations92
US4884182ANov 28, 1989
Current source power converting apparatus with overvoltage protection
HITACHI LTD26 citations92
US4870556ASep 26, 1989
Method and apparatus for controlling power converter
HITACHI LTD28 citations92
US4833586AMay 23, 1989
PWM control for power converter system utilizing pulse dropping at minimum pulse widths
HITACHI LTD31 citations92
US4787021ANov 22, 1988
Current-type converter apparatus
HITACHI LTD26 citations92
US7137483B2Nov 21, 2006
Rope and elevator using the same
HITACHI LTD40 citations91
US5283399AFeb 1, 1994
Group control of elevator system improvement measures
HITACHI LTD43 citations91
US5182776AJan 26, 1993
Image processing apparatus having apparatus for correcting the image processing
HITACHI LTD52 citations91
US5155671AOct 13, 1992
Power converter with current-type inverter
HITACHI LTD27 citations91
US4872532AOct 10, 1989
Signal transmission method and system in elevator equipment
HITACHI LTD29 citations91
US5389749AFeb 14, 1995
Elevator system
HITACHI LTD51 citations89
US4829416AMay 9, 1989
Apparatus for controlling power transducers of the pulse width modulation (PWM) control type
HITACHI LTD21 citations82
US4099111AJul 4, 1978
Control apparatus for DC motor
HITACHI LTD27 citations82
US5239141AAug 24, 1993
Group management control method and apparatus for an elevator system
HITACHI LTD20 citations81
US4263988AApr 28, 1981
Speed control system for a motor
HITACHI LTD23 citations81
US6976561B2Dec 20, 2005
Elevator system having terminals with wireless transmitting/receiving unit
HITACHI LTD7 citations73
US5409085AApr 25, 1995
Group control elevator system for automatically adjusting elevator operation based on a evaluation function
HITACHI LTD19 citations73
US4636932AJan 13, 1987
dv/dt Protection circuit device for an AC-DC converter apparatus
HITACHI LTD7 citations73
US4629034ADec 16, 1986
Elevator control apparatus
HITACHI LTD13 citations73
US4553640ANov 19, 1985
Controller for elevator
HITACHI LTD17 citations73
US4361866ANov 30, 1982
Power converter apparatus
HITACHI LTD9 citations73
US4133018AJan 2, 1979
Thyristor fault-detecting apparatus
HITACHI LTD16 citations73
US7426982B2Sep 23, 2008
Elevator group supervisory control system
HITACHI LTD8 citations72
US6481531B1Nov 19, 2002
Elevator communications apparatus
HITACHI LTD13 citations72
US4773508ASep 27, 1988
Elevator control apparatus
HITACHI LTD9 citations72
US4924373AMay 8, 1990
Apparatus and method for controlling switching elements in a PWN-controlled voltage source inverter
HITACHI LTD19 citations71
US4171505AOct 16, 1979
Fault detecting system for a control system
HITACHI LTD7 citations71
US6382361B2May 7, 2002
Elevator
HITACHI LTD13 citations70
US4256204AMar 17, 1981
Safety apparatus for elevator system
HITACHI LTD8 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
US7199547B2Apr 3, 2007
Apparatus, method or system for controlling mobile body
HITACHI LTD6 citations61
US7888893B2Feb 15, 2011
Control apparatus and method for linear synchronous motor
HITACHI LTD2 citations59
US6310456B1Oct 30, 2001
Control system and method
HITACHI LTD0 citations42