Inventor · disambiguated record
Hiroshi Kigawa
Also filed as: KIGAWA HIROSHI
22 granted patents·5 pending applications·258 citations·filing 2000–2012
96Inventor score
Top patents by PatentIndex Score
27 records- 0194US7938231B2Elevator apparatus having independent second brake controlMITSUBISHI ELECTRIC CORP·Filed 2006·Granted May 10, 2011·32 cites·14 claims
- 0289US8261886B2Safety device for elevator and rope slip detection methodKIGAWA HIROSHI·Filed 2012·Granted Sep 11, 2012·11 cites·1 claims
- 0387US7918320B2Emergency stop system for elevatorMITSUBISHI ELECTRIC CORP·Filed 2005·Granted Apr 5, 2011·18 cites·13 claims
- 0484US7540358B2Elevator apparatus including main and auxiliary sensorsMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Jun 2, 2009·24 cites·20 claims
- 0583US8402731B2Elevator ropeNAITO SHINYA·Filed 2009·Granted Mar 26, 2013·8 cites·15 claims
- 0683US7931127B2Elevator apparatusMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Apr 26, 2011·15 cites·13 claims
- 0782US8439168B2Elevator system having brake controlKONDO RIKIO·Filed 2007·Granted May 14, 2013·17 cites·9 claims
- 0882US8297413B2Safety device for elevator and rope slip detection method using drive sheave accelerationKIGAWA HIROSHI·Filed 2007·Granted Oct 30, 2012·11 cites·1 claims
- 0982US7686139B2Elevator deviceMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Mar 30, 2010·14 cites·5 claims
- 1078US8371420B2Elevator system for reducing collision shockMITSUBISHI ELECTRIC CORP·Filed 2007·Granted Feb 12, 2013·11 cites·5 claims
- 1178US7614481B2Elevator apparatus including a safety control portion that detects an abnormalityMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Nov 10, 2009·20 cites·18 claims
- 1276US8336677B2Safety device for elevator and rope slip detection methodKIGAWA HIROSHI·Filed 2012·Granted Dec 25, 2012·4 cites·1 claims
- 1376US7604099B2Brake device for elevatorMITSUBISHI ELECTRIC CORP·Filed 2005·Granted Oct 20, 2009·11 cites·16 claims
- 1472US7287626B2Buffer device for elevatorMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Oct 30, 2007·8 cites·3 claims
- 1567US7753176B2Emergency stop system of elevatorMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Jul 13, 2010·15 cites·12 claims
- 1663US8807285B2Elevator device and method of inspecting sameKUGIYA TAKUO·Filed 2009·Granted Aug 19, 2014·6 cites·6 claims
- 1762US6591945B1Self propelled elevatorMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Jul 15, 2003·11 cites·11 claims
- 1856US6497380B2Drum winding apparatusMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Dec 24, 2002·6 cites·17 claims
- 1955US8360210B2Oil buffer for an elevatorMITSUBISHI ELECTRIC CORP·Filed 2007·Granted Jan 29, 2013·3 cites·6 claims
- 2054US7677362B2Actuator driving method and actuator driving circuitMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Mar 16, 2010·7 cites·9 claims
- 2150US8973714B2Door engagement device for elevatorUTSUNOMIYA KENJI·Filed 2010·Granted Mar 10, 2015·1 cites·9 claims
- 2249US7766128B2Method for inspecting operation of actuator and actuator operation inspectorMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Aug 3, 2010·5 cites·14 claims
- 2347US2013001020A1Safety device for elevator and rope slip detection methodMITSUBISHI ELECTRIC CORP·Filed 2012·Application pending·0 cites
- 2441US2012073909A1Elevator deviceKONDO RIKIO·Filed 2009·Application pending·0 cites
- 2540US2006249334A1Buffer device for elevatorMITSUBISHI ELECTRIC CORP·Filed 2006·Application pending·0 cites
- 2637US2007170005A1Machine room-less elevatorMITSUBISHI ELECTRIC CORP·Filed 2005·Application pending·0 cites
- 2735US2003217895A1Buffer device for elevatorMITSUBISHI ELECTRIC CORP·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →