Assignee
HITACHI KOKI KK
JP·1,049 granted patents·119 pending applications·25,939 citations·filing 1977–2018
Top patents by PatentIndex Score
1,168 records- 0199US7185998B2Power toolHITACHI KOKI KK·Filed 2003·Granted Mar 6, 2007·135 cites·12 claims
- 0299US6679406B2Power toolHITACHI KOKI KK·Filed 2002·Granted Jan 20, 2004·113 cites·12 claims
- 0398US10562160B2Impact tool and method of controlling impact toolHITACHI KOKI KK·Filed 2013·Granted Feb 18, 2020·611 cites·19 claims
- 0498US10099303B2Electric power toolHITACHI KOKI KK·Filed 2014·Granted Oct 16, 2018·952 cites·14 claims
- 0598US7521892B2Cordless power tool with overcurrent protection circuit permitting the overcurrent condition during specified time periodsHITACHI KOKI KK·Filed 2006·Granted Apr 21, 2009·108 cites·17 claims
- 0698US7330006B2Power toolHITACHI KOKI KK·Filed 2006·Granted Feb 12, 2008·56 cites·11 claims
- 0798US7196911B2DC power source unit with battery charging functionHITACHI KOKI KK·Filed 2004·Granted Mar 27, 2007·1k cites·11 claims
- 0898US6886730B2Combustion-powered driving toolHITACHI KOKI KK·Filed 2004·Granted May 3, 2005·904 cites·14 claims
- 0998US4936394AVibroisolating handle joint structure for power toolHITACHI KOKI KK·Filed 1989·Granted Jun 26, 1990·87 cites·14 claims
- 1097USD844558SStorage batteryHITACHI KOKI KK·Filed 2017·Granted Apr 2, 2019·86 cites·1 claims
- 1197US8360166B2Rotary striking toolHITACHI KOKI KK·Filed 2010·Granted Jan 29, 2013·46 cites·10 claims
- 1297US8016048B2Electrical power toolHITACHI KOKI KK·Filed 2008·Granted Sep 13, 2011·49 cites·9 claims
- 1397US7934847B2Power tool with light unitHITACHI KOKI KK·Filed 2007·Granted May 3, 2011·48 cites·19 claims
- 1497US7677752B2Power tool equipped with lightHITACHI KOKI KK·Filed 2007·Granted Mar 16, 2010·53 cites·23 claims
- 1597US7216723B2Pulse torque generator and power tool having the sameHITACHI KOKI KK·Filed 2005·Granted May 15, 2007·29 cites·20 claims
- 1697US5896154AInk jet printerHITACHI KOKI KK·Filed 1995·Granted Apr 20, 1999·160 cites·32 claims
- 1797US5621524AMethod for testing ink-jet recording headsHITACHI KOKI KK·Filed 1996·Granted Apr 15, 1997·169 cites·6 claims
- 1897US4628459AComputerized circuit arrangement for jig sawHITACHI KOKI KK·Filed 1984·Granted Dec 9, 1986·1.4k cites·9 claims
- 1996USD919560SStorage batteryHITACHI KOKI KK·Filed 2018·Granted May 18, 2021·67 cites·1 claims
- 2096US10666168B2Electric toolHITACHI KOKI KK·Filed 2015·Granted May 26, 2020·11 cites·21 claims
- 2196US9793847B2Electric power toolHITACHI KOKI KK·Filed 2016·Granted Oct 17, 2017·7 cites·2 claims
- 2296US9391491B2Power toolHITACHI KOKI KK·Filed 2013·Granted Jul 12, 2016·15 cites·7 claims
- 2396US7494036B2Electric driving machineHITACHI KOKI KK·Filed 2007·Granted Feb 24, 2009·50 cites·2 claims
- 2496US7446508B2Battery charger for charging lithium-ion batteryHITACHI KOKI KK·Filed 2006·Granted Nov 4, 2008·27 cites·29 claims
- 2596US7390460B2Control device for automatic liquid handling systemHITACHI KOKI KK·Filed 2003·Granted Jun 24, 2008·124 cites·16 claims
- 2696US7048075B2Power toolHITACHI KOKI KK·Filed 2002·Granted May 23, 2006·56 cites·29 claims
- 2796US6938705B2Striking toolHITACHI KOKI KK·Filed 2004·Granted Sep 6, 2005·108 cites·6 claims
- 2896US6328418B1Print head having array of printing elements for printerHITACHI KOKI KK·Filed 2000·Granted Dec 11, 2001·97 cites·11 claims
- 2996US5873510ARepetitive striking type pneumatically operated nail gunHITACHI KOKI KK·Filed 1997·Granted Feb 23, 1999·165 cites·7 claims
- 3096US5785227AAdjustment mechanism for adjusting depth at which pneumatic nailing machine drives nails into workpieceHITACHI KOKI KK·Filed 1996·Granted Jul 28, 1998·145 cites·15 claims
- 3196US5697144AMethod of producing a head for the printerHITACHI KOKI KK·Filed 1995·Granted Dec 16, 1997·135 cites·19 claims
- 3296US5129467AElectric hammer drill having dust collecting deviceHITACHI KOKI KK·Filed 1990·Granted Jul 14, 1992·126 cites·8 claims
- 3396US4913331AInternal-combustion piston driving apparatus having a decompression channelHITACHI KOKI KK·Filed 1988·Granted Apr 3, 1990·119 cites·8 claims
- 3496USD295714SCordless impact wrenchHITACHI KOKI KK·Filed 1986·Granted May 17, 1988·55 cites·1 claims
- 3595US10875166B2Driving machineHITACHI KOKI KK·Filed 2016·Granted Dec 29, 2020·14 cites·22 claims
- 3695US10843317B2DriverHITACHI KOKI KK·Filed 2016·Granted Nov 24, 2020·20 cites·12 claims
- 3795US10654153B2Impact toolHITACHI KOKI KK·Filed 2016·Granted May 19, 2020·17 cites·9 claims
- 3895US7980439B2Nailing machineHITACHI KOKI KK·Filed 2008·Granted Jul 19, 2011·54 cites·4 claims
- 3995US7909751B2Method for sterilizing a centrifugal separatorHITACHI KOKI KK·Filed 2010·Granted Mar 22, 2011·15 cites·2 claims
- 4095USD622661SBattery packHITACHI KOKI KK·Filed 2010·Granted Aug 31, 2010·84 cites·1 claims
- 4195USD568239SBattery packHITACHI KOKI KK·Filed 2007·Granted May 6, 2008·73 cites·1 claims
- 4295USD562227SBattery packHITACHI KOKI KK·Filed 2007·Granted Feb 19, 2008·64 cites·1 claims
- 4395USD562228SBattery packHITACHI KOKI KK·Filed 2007·Granted Feb 19, 2008·68 cites·1 claims
- 4495USD504111SBattery pack for portable power toolHITACHI KOKI KK·Filed 2004·Granted Apr 19, 2005·66 cites·1 claims
- 4595USD477205SImpact driverHITACHI KOKI KK·Filed 2001·Granted Jul 15, 2003·60 cites·1 claims
- 4695USD439123SPortable electric drillHITACHI KOKI KK·Filed 2000·Granted Mar 20, 2001·64 cites·1 claims
- 4795US5831648AInk jet recording headHITACHI KOKI KK·Filed 1995·Granted Nov 3, 1998·115 cites·16 claims
- 4895USD329363SPortable circular sawHITACHI KOKI KK·Filed 1990·Granted Sep 15, 1992·55 cites·1 claims
- 4995USD323274SPortable electric screw driverHITACHI KOKI KK·Filed 1989·Granted Jan 21, 1992·48 cites·1 claims
- 5095US4773581ACombustion gas powered toolHITACHI KOKI KK·Filed 1987·Granted Sep 27, 1988·117 cites·6 claims
Showing the top 50 of 1,168 patent records by PatentIndex Score.
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