Inventor · disambiguated record
Yutaka Takaku
Also filed as: TAKAKU YUTAKA
53 granted patents·11 pending applications·1,445 citations·filing 1986–2017
99Inventor score
Top patents by PatentIndex Score
64 records- 0196US6520142B2Engine control system for controlling in-cylinder fuel injection engineHITACHI LTD·Filed 2002·Granted Feb 18, 2003·56 cites·20 claims
- 0295US5575265ADiagnostic method for evaporated fuel gas purging systemHITACHI LTD·Filed 1995·Granted Nov 19, 1996·74 cites·12 claims
- 0394US6305361B1Evaporative system and method of diagnosing sameHITACHI LTD·Filed 2000·Granted Oct 23, 2001·37 cites·12 claims
- 0494US5802843AMethod and apparatus for diagnosing engine exhaust gas purification systemHITACHI LTD·Filed 1995·Granted Sep 8, 1998·83 cites·3 claims
- 0591US6105556AEvaporative system and method of diagnosing sameHITACHI LTD·Filed 1997·Granted Aug 22, 2000·51 cites·3 claims
- 0691US5241480AMethod and apparatus for detecting combustion conditions in multicylinder internal combustion engine based upon engine speed evaluationHITACHI LTD·Filed 1991·Granted Aug 31, 1993·71 cites·7 claims
- 0790US5964811AControl method and apparatus for diagnosing vehiclesHITACHI LTD·Filed 1997·Granted Oct 12, 1999·94 cites·37 claims
- 0888US6085132AControl method and apparatus for diagnosing vehiclesHITACHI LTD·Filed 1998·Granted Jul 4, 2000·44 cites·3 claims
- 0987US7409275B2Vehicle diagnostic systemHITACHI LTD·Filed 2007·Granted Aug 5, 2008·21 cites·19 claims
- 1087US6357224B1Engine exhaust gas purifying apparatusHITACHI LTD·Filed 2000·Granted Mar 19, 2002·36 cites·16 claims
- 1186US5485374ACombustion-conditon diagnostic system and method for a multicylinder engineHITACHI LTD·Filed 1993·Granted Jan 16, 1996·43 cites·16 claims
- 1286US5341642ASystem for diagnosing engine exhaust gas purifying device and system for diagnosing sensorHITACHI LTD·Filed 1992·Granted Aug 30, 1994·42 cites·18 claims
- 1385US7976427B2Vehicle control apparatus and vehicle equipped with the control apparatusHITACHI LTD·Filed 2008·Granted Jul 12, 2011·18 cites·12 claims
- 1483US6502388B2Engine exhaust gas cleaning systemHITACHI LTD·Filed 2001·Granted Jan 7, 2003·28 cites·21 claims
- 1583US6089016ADiagnostic equipment for an exhaust gas cleaning apparatusHITACHI LTD·Filed 1999·Granted Jul 18, 2000·30 cites·3 claims
- 1682US6330795B1Diagnostic equipment for an exhaust gas cleaning apparatusHITACHI LTD·Filed 2000·Granted Dec 18, 2001·21 cites·4 claims
- 1780US4779597AFail-safe system for vehicle engineHITACHI LTD·Filed 1987·Granted Oct 25, 1988·31 cites·6 claims
- 1879US6470868B2Engine self-diagnosis apparatus and control apparatusHITACHI LTD·Filed 2001·Granted Oct 29, 2002·24 cites·17 claims
- 1979US5617722AExhaust control device of internal combustion engineHITACHI LTD·Filed 1995·Granted Apr 8, 1997·41 cites·18 claims
- 2079US5557933AMalfunction diagnosis apparatus for internal combustion engineHITACHI LTD·Filed 1994·Granted Sep 24, 1996·30 cites·23 claims
- 2176US6807806B2Diagnostic equipment for an exhaust gas cleaning apparatusHITACHI LTD·Filed 2002·Granted Oct 26, 2004·13 cites·13 claims
- 2276US5400592ADiagnostic apparatus for catalytic converter of an internal combustion engineHITACHI LTD·Filed 1994·Granted Mar 28, 1995·47 cites·33 claims
- 2375US7117664B2Diagnostic equipment for an exhaust gas cleaning apparatusHITACHI LTD·Filed 2004·Granted Oct 10, 2006·17 cites·6 claims
- 2475US5743085ADiagnostic equipment for an exhaust gas cleaning apparatusHITACHI LTD·Filed 1994·Granted Apr 28, 1998·27 cites·2 claims
- 2574US6089080ADiagnosis apparatus for evaporation systemHITACHI LTD·Filed 1997·Granted Jul 18, 2000·29 cites·6 claims
- 2674US5740676ADiagnostic apparatus for exhaust gas clarification apparatus for internal combustion engineHITACHI LTD·Filed 1996·Granted Apr 21, 1998·32 cites·8 claims
- 2773US5921078ADiagnostic equipment for an exhaust gas cleaning apparatusHITACHI LTD·Filed 1997·Granted Jul 13, 1999·17 cites·12 claims
- 2872US6523340B1Method and apparatus for diagnosing engine exhaust gas purification systemHITACHI LTD·Filed 2000·Granted Feb 25, 2003·18 cites·6 claims
- 2972US6383267B1Exhaust gas cleaning system for an engineHITACHI LTD·Filed 2000·Granted May 7, 2002·29 cites·14 claims
- 3071US6502549B1Engine combustion control deviceHITACHI LTD·Filed 1999·Granted Jan 7, 2003·26 cites·8 claims
- 3170US7389637B2Diagnostic equipment for an exhaust gas cleaning apparatusHITACHI LTD·Filed 2006·Granted Jun 24, 2008·2 cites·3 claims
- 3270US6330510B1Diagnosing system for engineHITACHI LTD·Filed 1999·Granted Dec 11, 2001·22 cites·4 claims
- 3370US5945828AEngine combustion condition detecting apparatus equipped with malfunction diagnosing apparatusHITACHI LTD·Filed 1998·Granted Aug 31, 1999·21 cites·5 claims
- 3469US10774867B2Bolt, control apparatus, and strain measurement systemSANNOHASHI CORP·Filed 2017·Granted Sep 15, 2020·2 cites·16 claims
- 3568US6520168B2Air-fuel ratio controller for engineHITACHI LTD·Filed 2001·Granted Feb 18, 2003·12 cites·4 claims
- 3668US6430495B2Diagnosing system for engineHITACHI LTD·Filed 2001·Granted Aug 6, 2002·12 cites·12 claims
- 3768US6003309ADiagnostic apparatus for exhaust gas clarification apparatus for internal combustion engineHITACHI LTD·Filed 1997·Granted Dec 21, 1999·40 cites·4 claims
- 3868US5758491ADiagnosing system and method of catalytic converter for controlling exhaust gas of internal combustion engineHITACHI LTD·Filed 1996·Granted Jun 2, 1998·25 cites·39 claims
- 3967US6343500B1Engine combustion condition detecting apparatus equipped with malfunction diagnosing apparatusHITACHI LTD·Filed 1999·Granted Feb 5, 2002·19 cites·9 claims
- 4065US6907341B2Misfire detectorHITACHI LTD·Filed 2003·Granted Jun 14, 2005·10 cites·10 claims
- 4165US6883307B2Diagnosis apparatus for internal combustion engineHITACHI LTD·Filed 2002·Granted Apr 26, 2005·13 cites·12 claims
- 4265US5765540AMethod of diagnosing an evaporative systemHITACHI LTD·Filed 1997·Granted Jun 16, 1998·22 cites·12 claims
- 4364US6408617B1Diagnostic equipment for an exhaust gas cleaning apparatusHITACHI LTD·Filed 2001·Granted Jun 25, 2002·7 cites·3 claims
- 4463US7956560B2Control apparatus for rotational electric machine and driving apparatus for vehicleHITACHI LTD·Filed 2008·Granted Jun 7, 2011·7 cites·12 claims
- 4563US6725709B2Combustion state diagnosing system and combustion state diagnosing method for diagnosing engine and recording mediumHITACHI LTD·Filed 2001·Granted Apr 27, 2004·8 cites·14 claims
- 4658US5314111APackaging box and sheet for packaging boxKOBE STEEL LTD·Filed 1992·Granted May 24, 1994·30 cites·10 claims
- 4754US2004267418A1Vehicle diagnostic systemFiled 2004·Application pending·0 cites
- 4853US8065049B2Vehicle diagnostic control apparatusSAKAMOTO HIROYUKI·Filed 2008·Granted Nov 22, 2011·2 cites·10 claims
- 4952US2006089768A1Vehicle diagnostic systemSAKURAI KOHEI·Filed 2005·Application pending·0 cites
- 5051US6061624AMulti-cylinder engine combustion state diagnosis apparatus and methodHITACHI LTD·Filed 1994·Granted May 9, 2000·14 cites·13 claims
Showing the top 50 of 64 patent records by PatentIndex Score.
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