Inventor · disambiguated record
Ryuji Ibaraki
Also filed as: IBARAKI RYUJI
70 granted patents·5 pending applications·4,160 citations·filing 1994–2017
99Inventor score
Top patents by PatentIndex Score
75 records- 0198US5856709AHybrid vehicle drive system having clutch between engine and synthesizing/distributing mechanism which is operatively connected to motor/generatorTOYOTA MOTOR CO LTD·Filed 1996·Granted Jan 5, 1999·361 cites·32 claims
- 0298US5841201AHybrid vehicle drive system having a drive mode using both engine and electric motorTOYOTA MOTOR CO LTD·Filed 1997·Granted Nov 24, 1998·266 cites·12 claims
- 0397US7288043B2Belt type continuously variable transmissionTOYOTA MOTOR CO LTD·Filed 2005·Granted Oct 30, 2007·126 cites·17 claims
- 0497US5635805AHybrid vehicleTOYOTA MOTOR CO LTD·Filed 1995·Granted Jun 3, 1997·233 cites·7 claims
- 0596US7363996B2Vehicular drive systemTOYOTA MOTOR CO LTD·Filed 2005·Granted Apr 29, 2008·46 cites·9 claims
- 0696US6098733AHybrid drive system for motor vehicleTOYOTA MOTOR CO LTD·Filed 1996·Granted Aug 8, 2000·181 cites·6 claims
- 0796US6081042AHybrid vehicle drive system including controllable device between engine and electric motor and vehicle drive wheels, and apparatus for controlling the device depending upon selected operation mode of the systemTOYOTA MOTOR CO LTD·Filed 1997·Granted Jun 27, 2000·161 cites·23 claims
- 0896US5875691AHybrid drive systemTOYOTA MOTOR CO LTD·Filed 1996·Granted Mar 2, 1999·116 cites·37 claims
- 0995US7811191B2Control apparatus for vehicular drive systemTOYOTA MOTOR CO LTD·Filed 2009·Granted Oct 12, 2010·41 cites·19 claims
- 1095US5982045AHybrid vehicle drive system adapted to prevent concurrent mode change and transmission shifting or torque distribution ratio changeTOYOTA MOTOR CO LTD·Filed 1997·Granted Nov 9, 1999·133 cites·35 claims
- 1195US5915801ARegenerative brake controller for controlling value of regenerative braking torque simulating engine braking torqueTOYOTA MOTOR CO LTD·Filed 1996·Granted Jun 29, 1999·156 cites·11 claims
- 1295US5887670AVehicle power transmitting system having devices for electrically and mechanically disconnecting power source and vehicle drive wheel upon selection of neutral stateTOYOTA MOTOR CO LTD·Filed 1997·Granted Mar 30, 1999·146 cites·20 claims
- 1395US5789882AVehicle control apparatus adapted to select engine-or motor-drive mode based on physical quantity reflecting energy conversion efficiencies in motor-drive modeTOYOTA MOTOR CO LTD·Filed 1996·Granted Aug 4, 1998·162 cites·19 claims
- 1494US6886648B1Power output device, hybrid vehicle, and method of controlling themTOYOTA MOTOR CO LTD·Filed 2000·Granted May 3, 2005·119 cites·27 claims
- 1594US6340339B1Vehicle drive deviceTOYOTA MOTOR CO LTD·Filed 1999·Granted Jan 22, 2002·133 cites·31 claims
- 1694US6155364AHybrid drive system wherein planetary gear mechanism is disposed radially inwardly of stator coil of motor/generatorTOYOTA MOTOR CO LTD·Filed 1997·Granted Dec 5, 2000·192 cites·19 claims
- 1794US5951614AVehicle hybrid drive system control apparatus adapted to reduce transmission input torque upon transmission shifting, by using engine and/or motor/generatorTOYOTA MOTOR CO LTD·Filed 1997·Granted Sep 14, 1999·129 cites·16 claims
- 1894US5818116AStarting control apparatus for internal combustion engine and method of the sameTOYOTA MOTOR CO LTD·Filed 1996·Granted Oct 6, 1998·151 cites·16 claims
- 1992US5923093AHybrid vehicle drive system adapted to assure smooth brake application by motor/generator or engineTOYOTA MOTOR CO LTD·Filed 1997·Granted Jul 13, 1999·112 cites·24 claims
- 2092US5833570AVehicle transmission shift control apparatus wherein torque of motor connected to automatic transmission is controlled to reduce shifting shock of transmissionTOYOTA MOTOR CO LTD·Filed 1997·Granted Nov 10, 1998·109 cites·17 claims
- 2192US5525117AGear transmission for automatic transmissionsTOYOTA MOTOR CO LTD·Filed 1994·Granted Jun 11, 1996·53 cites·10 claims
- 2290US8052569B2Controller of power transmissionTOYOTA MOTOR CO LTD·Filed 2006·Granted Nov 8, 2011·25 cites·29 claims
- 2390US7469758B2Electric vehicle drive control device and control method thereforAISIN AW CO·Filed 2006·Granted Dec 30, 2008·26 cites·13 claims
- 2490US7396308B2Vehicular drive systemTOYOTA MOTOR CO LTD·Filed 2005·Granted Jul 8, 2008·27 cites·16 claims
- 2590US5722911AVehicle control apparatus adapted to charge energy storage device by generator driven by surplus engine power which changes with required vehicle drive forceTOYOTA MOTOR CO LTD·Filed 1996·Granted Mar 3, 1998·100 cites·7 claims
- 2689US5927415AHybrid vehicle controllerTOYOTA MOTOR CO LTD·Filed 1996·Granted Jul 27, 1999·100 cites·10 claims
- 2788US7918753B2Hydraulic control unitTOYOTA MOTOR CO LTD·Filed 2005·Granted Apr 5, 2011·16 cites·30 claims
- 2888US5873426AHybrid vehicle drive system having means for using at least engine as drive power source in special vehicle operating state, to assure sufficient drive forceTOYOTA MOTOR CO LTD·Filed 1997·Granted Feb 23, 1999·89 cites·9 claims
- 2987US6317665B1Vehicle control systemTOYOTA MOTOR CO LTD·Filed 1999·Granted Nov 13, 2001·79 cites·32 claims
- 3087US5935040AHybrid vehicle drive system adapted to produce substantially constant vehicle drive force under the same vehicle running condition, even in different modes of operationTOYOTA MOTOR CO LTD·Filed 1997·Granted Aug 10, 1999·84 cites·9 claims
- 3186US8360927B2Vehicle power transmission deviceTOYOTA MOTOR CO LTD·Filed 2010·Granted Jan 29, 2013·8 cites·9 claims
- 3285US9713955B2Power transmitting apparatus for hybrid vehicleTOYOTA MOTOR CO LTD·Filed 2014·Granted Jul 25, 2017·9 cites·4 claims
- 3385US7267211B2Damper device and lock-up clutch deviceTOYOTA MOTOR CO LTD·Filed 2004·Granted Sep 11, 2007·25 cites·28 claims
- 3485US6158541AElectric motor vehicle having means for fully discharging part of energy storage device when energy amount in the other part is larger than a thresholdTOYOTA MOTOR CO LTD·Filed 1998·Granted Dec 12, 2000·77 cites·26 claims
- 3584US7988573B2Device and method for controlling belt-type continuously variable transmissionTOYOTA MOTOR CO LTD·Filed 2005·Granted Aug 2, 2011·12 cites·18 claims
- 3682US7905807B2Hydraulic control apparatus for automatic transmission, and hybrid drive system provided with the sameAISIN AW CO·Filed 2007·Granted Mar 15, 2011·15 cites·16 claims
- 3782US7766778B2Drive device for vehicleTOYOTA MOTOR CO LTD·Filed 2005·Granted Aug 3, 2010·15 cites·9 claims
- 3880US9739340B2Damper apparatusAISIN SEIKI·Filed 2014·Granted Aug 22, 2017·5 cites·5 claims
- 3980US7762365B2Electric vehicle drive control device and control method thereforAISIN AW CO·Filed 2006·Granted Jul 27, 2010·14 cites·14 claims
- 4079US7670244B2Power transmission systemTOYOTA MOTOR CO LTD·Filed 2005·Granted Mar 2, 2010·9 cites·28 claims
- 4177US7992385B2Hydraulic control deviceAISIN AW CO·Filed 2008·Granted Aug 9, 2011·7 cites·26 claims
- 4277US7753814B2Belt type continuously variable transmissionTOYOTA MOTOR CO LTD·Filed 2005·Granted Jul 13, 2010·8 cites·22 claims
- 4377US5725064AHybrid vehicle with pumping loss reducing functionTOYOTA MOTOR CO LTD·Filed 1996·Granted Mar 10, 1998·75 cites·12 claims
- 4476US9944164B2Power transmitting apparatus for hybrid vehicleTOYOTA MOTOR CO LTD·Filed 2014·Granted Apr 17, 2018·5 cites·6 claims
- 4576US8092325B2Continuously variable belt transmission for a vehicleNOZAWA HIROFUMI·Filed 2005·Granted Jan 10, 2012·10 cites·12 claims
- 4674US7632201B2Hybrid drive apparatusAISIN AW CO·Filed 2006·Granted Dec 15, 2009·10 cites·19 claims
- 4773US10112472B2Drive device for hybrid vehicleTOYOTA MOTOR CO LTD·Filed 2014·Granted Oct 30, 2018·3 cites·9 claims
- 4873US9630487B2Hybrid systemTOYOTA MOTOR CO LTD·Filed 2014·Granted Apr 25, 2017·3 cites·7 claims
- 4973US5993169AOil pressure generator having at least two coaxial rotating power sources and power output apparatusTOYOTA MOTOR CO LTD·Filed 1997·Granted Nov 30, 1999·48 cites·8 claims
- 5072US8066090B2Hydraulic pressure control device of an automatic transmission and hybrid drive device having the hydraulic pressure control deviceSHIMIZU TETSUYA·Filed 2007·Granted Nov 29, 2011·9 cites·19 claims
Showing the top 50 of 75 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →