Inventor · disambiguated record
Seinosuke Hara
Also filed as: HARA SEINOSUKE
77 granted patents·3 pending applications·1,992 citations·filing 1982–2010
99Inventor score
Top patents by PatentIndex Score
80 records- 0197US7793625B2Variable valve actuating apparatus for internal combustion engineHITACHI LTD·Filed 2008·Granted Sep 14, 2010·32 cites·12 claims
- 0297US5189998AValve mechanism of internal combustion engineATSUGI UNISIA CORP·Filed 1992·Granted Mar 2, 1993·82 cites·11 claims
- 0396US8095298B2Variable valve actuation system of internal combustion engineNAKAMURA MAKOTO·Filed 2010·Granted Jan 10, 2012·13 cites·3 claims
- 0496US7246578B2Valve operating mechanism of internal combustion engineHITACHI LTD·Filed 2005·Granted Jul 24, 2007·31 cites·28 claims
- 0596US6575128B2Variable-valve-actuation apparatus for internal combustion engineUNISIA JECS CORP·Filed 2002·Granted Jun 10, 2003·64 cites·17 claims
- 0695US7703424B2Variable valve actuation system of internal combustion engineHITACHI LTD·Filed 2006·Granted Apr 27, 2010·19 cites·25 claims
- 0795US7331323B2Lubricating oil supplying system for internal combustion engineHITACHI LTD·Filed 2005·Granted Feb 19, 2008·22 cites·26 claims
- 0895US6390041B2Variable-valve-actuation apparatus for internal combustion engineUNISIA JECS CORP·Filed 2000·Granted May 21, 2002·54 cites·23 claims
- 0994US7509932B2Control apparatus for controlling internal combustion enginesHITACHI LTD·Filed 2006·Granted Mar 31, 2009·31 cites·8 claims
- 1094US5501186AEngine valve control mechanismUNISIA JECS CORP·Filed 1994·Granted Mar 26, 1996·63 cites·7 claims
- 1193US7520260B2Multistage fuel-injection internal combustion engineHITACHI LTD·Filed 2006·Granted Apr 21, 2009·25 cites·20 claims
- 1292US6340010B1Valve operating device for internal combustion engine with variable valve timing and valve-lift characteristic mechanismUNISIA JECS CORP·Filed 2000·Granted Jan 22, 2002·40 cites·26 claims
- 1392US6216653B1Electromagnetic valve actuator for a valve of an engineUNISIA JECS CORP·Filed 2000·Granted Apr 17, 2001·40 cites·8 claims
- 1491US7322324B2Valve operating apparatus of internal combustion engineHITACHI LTD·Filed 2006·Granted Jan 29, 2008·14 cites·20 claims
- 1591US6427653B1System for driving and controlling CAM for internal combustion engineUNISIA JECS CORP·Filed 2000·Granted Aug 6, 2002·33 cites·27 claims
- 1691US5988125AVariable valve actuation apparatus for engineUNISIA JECS CORP·Filed 1998·Granted Nov 23, 1999·58 cites·30 claims
- 1791US5365896ACam shaft assembly for use in internal combustion engineUNISIA JECS CORP·Filed 1993·Granted Nov 22, 1994·56 cites·14 claims
- 1889US7188595B2Variable valve actuation device of internal combustion engineHITACHI LTD·Filed 2005·Granted Mar 13, 2007·10 cites·20 claims
- 1989US5203289AVariable timing mechanismATSUGI UNISIA CORP·Filed 1991·Granted Apr 20, 1993·53 cites·35 claims
- 2087US8006658B2Variable valve actuation apparatus of internal combustion engineHITACHI LTD·Filed 2009·Granted Aug 30, 2011·11 cites·19 claims
- 2187US6041746AVariable valve actuation apparatusNISSAN MOTOR·Filed 1998·Granted Mar 28, 2000·42 cites·9 claims
- 2287US5924334ADevice for moving cam relative to its driving shaftUNISIA JECS CORP·Filed 1997·Granted Jul 20, 1999·60 cites·12 claims
- 2386US8401721B2Variable valve actuating apparatus, valve phase varying apparatus and control apparatus for internal combustion engineNAKAMURA MAKOTO·Filed 2010·Granted Mar 19, 2013·5 cites·21 claims
- 2486US6305336B1Electromagnetic driving device of engine valve for internal combustion engineUNISIA JECS CORP·Filed 2000·Granted Oct 23, 2001·29 cites·19 claims
- 2586US5445116AHydraulic variable lift engine valve gearUNISIA JECS CORP·Filed 1993·Granted Aug 29, 1995·39 cites·1 claims
- 2686US4438736AVariable valve timing arrangement with automatic valve clearance adjustmentNISSAN MOTOR·Filed 1982·Granted Mar 27, 1984·36 cites·11 claims
- 2785US4708101ADriving apparatus for intake and exhaust valves of internal combustion engineNISSAN MOTOR·Filed 1985·Granted Nov 24, 1987·49 cites·17 claims
- 2885US4539951AVariable valve timing mechanismNISSAN MOTOR·Filed 1984·Granted Sep 10, 1985·33 cites·25 claims
- 2985US4526142AVariable valve timing arrangement for an internal combustion engine or the likeNISSAN MOTOR·Filed 1982·Granted Jul 2, 1985·32 cites·17 claims
- 3084US5085182AVariable valve timing rocker arm arrangement for internal combustion engineNISSAN MOTOR·Filed 1990·Granted Feb 4, 1992·41 cites·7 claims
- 3183US6123053AVariable valve actuation apparatus for internal combustion enginesUNISIA JECS CORP·Filed 1999·Granted Sep 26, 2000·38 cites·3 claims
- 3283US5452694AHydraulic variable lift engine valve gearUNISIA JECS CORP·Filed 1995·Granted Sep 26, 1995·34 cites·11 claims
- 3383US4934347AVariable compression piston arrangement for internal combustion engineNISSAN MOTOR·Filed 1988·Granted Jun 19, 1990·38 cites·17 claims
- 3483US4759321AValve timing arrangement for internal combustion engine having multiple inlet valves per cylinderNISSAN MOTOR·Filed 1986·Granted Jul 26, 1988·41 cites·14 claims
- 3583US4567861AEngine valve operating system for internal combustion engineNISSAN MOTOR·Filed 1983·Granted Feb 4, 1986·30 cites·28 claims
- 3682US7478614B2Variably operated valve system for compression ignition engineHITACHI LTD·Filed 2006·Granted Jan 20, 2009·8 cites·19 claims
- 3782US6499454B2Variable-valve-actuation apparatus for internal combustion engineUNISIA JECS CORP·Filed 2001·Granted Dec 31, 2002·20 cites·14 claims
- 3882US5494009AValve control device for internal combustion engineUNISIA JECS CORP·Filed 1994·Granted Feb 27, 1996·47 cites·25 claims
- 3981US6085704AElectromagnetically operating actuator for intake and/or exhaust valvesUNISIA JECS CORP·Filed 1998·Granted Jul 11, 2000·33 cites·8 claims
- 4081US6055949AVariable valve actuator apparatusNISSAN MOTOR·Filed 1998·Granted May 2, 2000·35 cites·7 claims
- 4181US4809650AVariable compression control arrangement for internal combustion engineNISSAN MOTOR·Filed 1987·Granted Mar 7, 1989·35 cites·11 claims
- 4279US7942123B2Variable valve system for internal combustion engineHITACHI LTD·Filed 2008·Granted May 17, 2011·6 cites·7 claims
- 4379US6029618AVariable valve actuation apparatusNISSAN MOTOR·Filed 1998·Granted Feb 29, 2000·31 cites·16 claims
- 4478US7240649B2Valve actuation device of internal combustion engineHITACHI LTD·Filed 2006·Granted Jul 10, 2007·6 cites·18 claims
- 4576US7600496B2Valve operating apparatus for internal combustion engineHITACHI LTD·Filed 2007·Granted Oct 13, 2009·8 cites·13 claims
- 4675US5125373AOil passage structure for rocker-arm shaft for internal combustion engineATSUGI UNISIA CORP·Filed 1991·Granted Jun 30, 1992·28 cites·6 claims
- 4774US5682847AValve actuating device for engineUNISIA JECS CORP·Filed 1996·Granted Nov 4, 1997·23 cites·8 claims
- 4873US5333579AControl device for controlling intake and exhaust valves of internal combustion engineUNISIA JECS CORP·Filed 1993·Granted Aug 2, 1994·29 cites·11 claims
- 4972US4498432AVariable valve timing arrangement for an internal combustion engine or the likeNISSAN MOTOR·Filed 1982·Granted Feb 12, 1985·23 cites·19 claims
- 5069US5687681APhase changing mechanism for camshaft of internal combustion engineUNISIA JECS CORP·Filed 1996·Granted Nov 18, 1997·27 cites·24 claims
Showing the top 50 of 80 patent records by PatentIndex Score.
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