Inventor · disambiguated record
Naohiro Hayakawa
Also filed as: HAYAKAWA NAOHIRO
54 granted patents·1,306 citations·filing 1985–2011
99Inventor score
Top patents by PatentIndex Score
54 records- 0197USD347731SCarrying case for a toolMAKITA CORP·Filed 1992·Granted Jun 14, 1994·79 cites·1 claims
- 0296USD436917SBattery packMAKITA CORP·Filed 2000·Granted Jan 30, 2001·73 cites·1 claims
- 0396USD436511SPortable electric drillMAKITA CORP·Filed 2000·Granted Jan 23, 2001·78 cites·1 claims
- 0495USD437761SRechargeable impact wrenchMAKITA CORP·Filed 2000·Granted Feb 20, 2001·61 cites·1 claims
- 0595USD386662SPortable electric screwdriverMAKITA CORP·Filed 1996·Granted Nov 25, 1997·65 cites·1 claims
- 0694USD431697SPortable electric blowerMAKITA CORP·Filed 1999·Granted Oct 3, 2000·54 cites·1 claims
- 0794USD427874SCircular sawMAKITA CORP·Filed 1999·Granted Jul 11, 2000·47 cites·1 claims
- 0893USD486049SPortable electric drillMAKITA CORP·Filed 2003·Granted Feb 3, 2004·53 cites·1 claims
- 0993USD444363SPortable electric drillMAKITA CORP·Filed 2001·Granted Jul 3, 2001·51 cites·1 claims
- 1089USD375570SFlashlightMAKITA CORP·Filed 1995·Granted Nov 12, 1996·35 cites·1 claims
- 1187USD494435SRechargeable impact driverMAKITA CORP·Filed 2003·Granted Aug 17, 2004·34 cites·1 claims
- 1287USD476870SPortable electric drillMAKITA CORP·Filed 2002·Granted Jul 8, 2003·33 cites·1 claims
- 1387USD426125SPortable electric driverMAKITA CORP·Filed 1999·Granted Jun 6, 2000·32 cites·1 claims
- 1486USD468179SPortable electric grinderMAKITA CORP·Filed 2002·Granted Jan 7, 2003·34 cites·1 claims
- 1586USD388442SMiter sawMAKITA CORP·Filed 1996·Granted Dec 30, 1997·30 cites·1 claims
- 1685USD588891SPortable electric drillMAKITA CORP·Filed 2008·Granted Mar 24, 2009·31 cites·1 claims
- 1784USD403220SPortable electric drillMAKITA CORP·Filed 1998·Granted Dec 29, 1998·27 cites·1 claims
- 1883USD372407SHedge trimmerMAKITA CORP·Filed 1995·Granted Aug 6, 1996·28 cites·1 claims
- 1979USD505055SPortable electric impact driverMAKITA CORP·Filed 2003·Granted May 17, 2005·23 cites·1 claims
- 2078USD530580SPortable electric band sawMAKITA CORP·Filed 2004·Granted Oct 24, 2006·22 cites·1 claims
- 2178USD478103SMiter sawMAKITA CORP·Filed 2002·Granted Aug 5, 2003·21 cites·1 claims
- 2277USD473771SPortable electric sawMAKITA CORP·Filed 2002·Granted Apr 29, 2003·22 cites·1 claims
- 2376USD636243SPortable electric sanderMAKITA CORP·Filed 2010·Granted Apr 19, 2011·22 cites·1 claims
- 2476USD525849SPortable electric hammer drillHAYAKAWA NAOHIRO·Filed 2005·Granted Aug 1, 2006·21 cites·1 claims
- 2574USD526179SPortable electric hammer drillMAKITA CORP·Filed 2004·Granted Aug 8, 2006·16 cites·1 claims
- 2674USD384261SPortable electric screwdriverMAKITA CORP·Filed 1996·Granted Sep 30, 1997·18 cites·1 claims
- 2773USD527592SPower wrenchMAKITA CORP·Filed 2004·Granted Sep 5, 2006·19 cites·1 claims
- 2873USD409468SPortable electric hammerMAKITA CORP·Filed 1998·Granted May 11, 1999·17 cites·1 claims
- 2971USD566504SPortable electric jig sawMAKITA CORP·Filed 2007·Granted Apr 15, 2008·18 cites·1 claims
- 3071USD413779SPortable electric planerMAKITA CORP·Filed 1998·Granted Sep 14, 1999·16 cites·1 claims
- 3170USD631315SPortable electric drillMAKITA CORP·Filed 2010·Granted Jan 25, 2011·22 cites·1 claims
- 3269USD527966SPortable electric grinderMAKITA CORP·Filed 2006·Granted Sep 12, 2006·17 cites·1 claims
- 3368USD601874SPortable electric planerMAKITA CORP·Filed 2009·Granted Oct 13, 2009·15 cites·1 claims
- 3467USD559644SPortable electric circular sawMAKITA CORP·Filed 2006·Granted Jan 15, 2008·16 cites·1 claims
- 3565USD548034SPortable electric grinderMAKITA CORP·Filed 2007·Granted Aug 7, 2007·14 cites·1 claims
- 3663USD587545SPortable electric drillMAKITA CORP·Filed 2008·Granted Mar 3, 2009·12 cites·1 claims
- 3761US4664829ALubricating oil blend resistant to ionizing radiationJAPAN ATOMIC ENERGY RES INST·Filed 1985·Granted May 12, 1987·16 cites·5 claims
- 3860USD634170SPortable electric grinderMAKITA CORP·Filed 2010·Granted Mar 15, 2011·11 cites·1 claims
- 3959USD639130SPortable electric sawMAKITA CORP·Filed 2011·Granted Jun 7, 2011·11 cites·1 claims
- 4059USD546153SPortable electric bandsaw bodyMAKITA CORP·Filed 2006·Granted Jul 10, 2007·11 cites·1 claims
- 4159USD430175SPlanerMAKITA CORP·Filed 1999·Granted Aug 29, 2000·9 cites·1 claims
- 4259USD384262SPortable electric screwdriverMAKITA CORP·Filed 1996·Granted Sep 30, 1997·10 cites·1 claims
- 4357USD449899SFlashlightMAKITA CORP·Filed 2001·Granted Oct 30, 2001·10 cites·1 claims
- 4451USD660119SPortable electric grinderFUKUMOTO TADASHI·Filed 2011·Granted May 22, 2012·9 cites·1 claims
- 4549USD647772SPortable electric grinderMAKITA CORP·Filed 2010·Granted Nov 1, 2011·6 cites·1 claims
- 4648USD643270SPortable electric drillMAKITA CORP·Filed 2011·Granted Aug 16, 2011·6 cites·1 claims
- 4748USD593388SPortable electric drillMAKITA CORP·Filed 2008·Granted Jun 2, 2009·6 cites·1 claims
- 4843USD531474SPortion of a portable electric hammer drillMAKITA CORP·Filed 2005·Granted Nov 7, 2006·5 cites·1 claims
- 4943US4711732ARadiation-resistant greaseJAPAN ATOMIC ENERGY RES INST·Filed 1986·Granted Dec 8, 1987·7 cites·2 claims
- 5039USD492566SPortable electric driverMAKITA CORP·Filed 2003·Granted Jul 6, 2004·3 cites·1 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
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