Inventor · disambiguated record
Daijiro Nakamura
Also filed as: NAKAMURA DAIJIRO
27 granted patents·2 pending applications·1,002 citations·filing 1985–2021
97Inventor score
Files withPOWER TOOL HOLDERS INC6HONDA MOTOR CO LTD5NAKAMURA DAIJIRO3JACOBS JAPAN INC2SM IND CO LTD2
Top patents by PatentIndex Score
29 records- 0193US6533291B2Chuck having quick change mechanismPOWER TOOL HOLDERS INC·Filed 2001·Granted Mar 18, 2003·50 cites·59 claims
- 0292US5810533AScrew for fasteningPOWER TOOL HOLDERS INC·Filed 1994·Granted Sep 22, 1998·50 cites·7 claims
- 0392US5172923ATool chuckDELTA KK·Filed 1992·Granted Dec 22, 1992·96 cites·4 claims
- 0492US5044643ATool chuckNAKAMURA DAIJIRO·Filed 1990·Granted Sep 3, 1991·116 cites·12 claims
- 0590US5577872ATorque enhancing tightening screwPOWER TOOL HOLDERS INC·Filed 1994·Granted Nov 26, 1996·46 cites·5 claims
- 0690US5261679AKeyless type tool chuckJACOBS JAPAN INC·Filed 1992·Granted Nov 16, 1993·70 cites·6 claims
- 0789US5322303ATool chuckJACOBS JAPAN INC·Filed 1992·Granted Jun 21, 1994·89 cites·6 claims
- 0889US4651940AScreen-taking-up deviceSM IND CO LTD·Filed 1985·Granted Mar 24, 1987·70 cites·5 claims
- 0986US6010426ALock device of output shaftFiled 1997·Granted Jan 4, 2000·60 cites·23 claims
- 1085US4681279AScreen roll meansSM IND CO LTD·Filed 1986·Granted Jul 21, 1987·65 cites·1 claims
- 1184US6702090B2Power tool and spindle lock systemNAKAMURA DAIJIRO·Filed 2002·Granted Mar 9, 2004·64 cites·49 claims
- 1283US6722668B2Chuck having quick change mechanismPOWER TOOL HOLDERS INC·Filed 2003·Granted Apr 20, 2004·23 cites·18 claims
- 1380US7063201B2Power tool and spindle lock systemMILWAUKEE ELECTRIC TOOL CORP·Filed 2004·Granted Jun 20, 2006·49 cites·20 claims
- 1475US5871322AClamp screwPOWER TOOL HOLDERS INC·Filed 1995·Granted Feb 16, 1999·25 cites·16 claims
- 1574US8172713B2Rotation output deviceNAKAMURA DAIJIRO·Filed 2005·Granted May 8, 2012·5 cites·15 claims
- 1671US5984320ATool chuckFiled 1997·Granted Nov 16, 1999·30 cites·1 claims
- 1771US5732805ALock device of output shaftFiled 1996·Granted Mar 31, 1998·32 cites·3 claims
- 1870US10092960B2Chuck deviceJACOBS CHUCK MFG SUZHOU CO LTD·Filed 2015·Granted Oct 9, 2018·2 cites·7 claims
- 1967US6261041B1Clamping screwFiled 1998·Granted Jul 17, 2001·27 cites·15 claims
- 2058US5567100ATorque enhancing clamping nutPOWER TOOL HOLDERS INC·Filed 1994·Granted Oct 22, 1996·24 cites·14 claims
- 2156US10514010B2Fuel level estimation device and abnormality diagnostic apparatus for closed fuel vapor systemHONDA MOTOR CO LTD·Filed 2018·Granted Dec 24, 2019·0 cites·3 claims
- 2254US10928276B2Blockage detection device and blockage detection methodHONDA MOTOR CO LTD·Filed 2018·Granted Feb 23, 2021·0 cites·7 claims
- 2352US2021229248A1Attachment-type aligning device and electric power toolMURATECHNOLOGY CO LTD·Filed 2021·Application pending·0 cites
- 2449US11156190B2Occlusion diagnosis deviceHONDA MOTOR CO LTD·Filed 2019·Granted Oct 26, 2021·0 cites·12 claims
- 2546US10712228B2Blockage diagnosis deviceHONDA MOTOR CO LTD·Filed 2018·Granted Jul 14, 2020·0 cites·8 claims
- 2645US7721867B2Rotation output deviceTECHTRONIC POWER TOOLS TECH·Filed 2005·Granted May 25, 2010·0 cites·6 claims
- 2744US5577870ATightening screwFiled 1993·Granted Nov 26, 1996·9 cites·4 claims
- 2843US10677198B2Blockage detection system and blockage detection methodHONDA MOTOR CO LTD·Filed 2017·Granted Jun 9, 2020·0 cites·5 claims
- 2941US2002130006A1Spindle lock systemFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →