Inventor · disambiguated record
Kazumasa Tsukamoto
Also filed as: TSUKAMOTO KAZUMASA
122 granted patents·1 pending application·3,229 citations·filing 1980–2011
99Inventor score
Top patents by PatentIndex Score
123 records- 0198US5846155AVehicular drive unitAISIN AW CO·Filed 1996·Granted Dec 8, 1998·357 cites·26 claims
- 0297US6139463AAutomatic transmission for vehicleAISIN AW LTD CO·Filed 1999·Granted Oct 31, 2000·211 cites·20 claims
- 0395US6176802B1Vehicular automatic transmissionAISIN AW CO·Filed 1999·Granted Jan 23, 2001·71 cites·18 claims
- 0495US5669846AContinuously variable transmission with control of switching between a high mode and a low modeAISIN AW CO·Filed 1996·Granted Sep 23, 1997·61 cites·12 claims
- 0594US6120410AAutomatic transmission for vehicleAISIN AW CO·Filed 1999·Granted Sep 19, 2000·62 cites·24 claims
- 0694US5735376AAutomatic transmission for vehiclesAISIN AW CO·Filed 1996·Granted Apr 7, 1998·65 cites·7 claims
- 0793US6269895B1Hybrid drive systemAISIN AW CO·Filed 1998·Granted Aug 7, 2001·144 cites·12 claims
- 0893US6110069AAutomatic transmission for vehicleAISIN AW CO·Filed 1999·Granted Aug 29, 2000·55 cites·36 claims
- 0992US7255186B2Hybrid drive system and vehicle equipped therewithTOYOTA MOTOR CO LTD·Filed 2003·Granted Aug 14, 2007·59 cites·43 claims
- 1092US6935450B1Hybrid vehicle driving deviceAISIN AW CO·Filed 2000·Granted Aug 30, 2005·58 cites·24 claims
- 1192US5911646AControl apparatus for automatic transmissionAISIN AW CO·Filed 1996·Granted Jun 15, 1999·55 cites·11 claims
- 1290US6135912AAutomatic transmission for a vehicleAISIN AW CO·Filed 1999·Granted Oct 24, 2000·47 cites·20 claims
- 1389US6478101B1Drive unit for hybrid vehicleAISIN AW CO·Filed 2000·Granted Nov 12, 2002·79 cites·20 claims
- 1489US5782711AHydraulic pressure control apparatus for an automatic transmissionAISIN AW CO·Filed 1996·Granted Jul 21, 1998·49 cites·11 claims
- 1586US5961418AInfinitely variable transmissionAISIN AW CO·Filed 1997·Granted Oct 5, 1999·41 cites·11 claims
- 1685US5690576AContinuously variable transmission with control of switching between forward and reverseAISIN AW CO·Filed 1996·Granted Nov 25, 1997·34 cites·10 claims
- 1784US6098005AVehicle transmission controller for changing gear ratios in accordance with road featuresAISIN AW CO·Filed 1997·Granted Aug 1, 2000·79 cites·8 claims
- 1884US6068576AHydraulic control system for automatic transmissionAISIN AW CO·Filed 1998·Granted May 30, 2000·38 cites·29 claims
- 1984US5692990AAutomatic transmission control apparatusAISIN AW CO·Filed 1996·Granted Dec 2, 1997·39 cites·5 claims
- 2083US6464610B1Hydraulic pressure control apparatus for automatic transmissionAISIN AW CO·Filed 2000·Granted Oct 15, 2002·25 cites·36 claims
- 2182US6128565AHydraulic control system for automatic transmissionAISIN AW CO·Filed 1998·Granted Oct 3, 2000·35 cites·37 claims
- 2282US5961419ALubricant control apparatus for automatic transmissionAISIN AW CO·Filed 1997·Granted Oct 5, 1999·33 cites·23 claims
- 2382US5771478AVehicle drive system with electrical power regenerationAISIN AW CO·Filed 1995·Granted Jun 23, 1998·72 cites·21 claims
- 2481US4866935AHydraulic torque converterAISIN WARNER·Filed 1986·Granted Sep 19, 1989·29 cites·4 claims
- 2581US4693348ADirect coupling clutch with an integral damper device for a fluid couplingAISIN WARNER·Filed 1986·Granted Sep 15, 1987·31 cites·2 claims
- 2680US6302822B1Hydraulic control system of automatic transmissionAISIN AW CO·Filed 1999·Granted Oct 16, 2001·27 cites·10 claims
- 2780US5964335AParking device for automatic transmissionAISIN AW CO·Filed 1997·Granted Oct 12, 1999·31 cites·23 claims
- 2880US5957800AShift control system for automatic transmissionTOYOTA MOTOR CO LTD·Filed 1997·Granted Sep 28, 1999·27 cites·7 claims
- 2978US6146308ACreep torque control of infinitely variable transmissionAISIN AW CO·Filed 1997·Granted Nov 14, 2000·30 cites·14 claims
- 3078US5951433AAutomatic transmissionAISIN AW CO·Filed 1997·Granted Sep 14, 1999·32 cites·17 claims
- 3177US5630772AControl method and control system for automatic transmissionAISIN AW CO·Filed 1995·Granted May 20, 1997·29 cites·10 claims
- 3277US5501645AControl system for vehicular automatic transmissions with a quick-shift hydraulic system for manual shiftingAISIN AW CO·Filed 1994·Granted Mar 26, 1996·29 cites·10 claims
- 3376US5069657AAutomatic transmissionAISIN AW CO·Filed 1990·Granted Dec 3, 1991·29 cites·6 claims
- 3475US5800308APressure control of hydraulic servos while in gear at a stopped neutral stateAISIN AW CO·Filed 1996·Granted Sep 1, 1998·27 cites·5 claims
- 3574US5191814ASpeed change control system in automatic transmissionAISIN AW CO·Filed 1991·Granted Mar 9, 1993·27 cites·1 claims
- 3673US5931885AHydraulic control system for an automatic transmissionAISIN AW CO·Filed 1997·Granted Aug 3, 1999·26 cites·8 claims
- 3773US5649880AFailsafe control system for automatic transmissionAISIN AW CO·Filed 1995·Granted Jul 22, 1997·27 cites·10 claims
- 3872US5368531AControl method of and system thereof for inversely proportionally raising and lowering servo hydraulic pressure, based on input torque, for engaging and disengaging frictional elements in automatic transmissionAISIN AW CO·Filed 1992·Granted Nov 29, 1994·24 cites·6 claims
- 3972US5175999ATorque converter device with lubricating washer on turbine hubAISIN AW CO·Filed 1991·Granted Jan 5, 1993·24 cites·3 claims
- 4071US7174978B2Hybrid drive unit, and front-engine/rear-drive type automobile having the hybrid drive unit mounted thereonAISIN AW CO·Filed 2003·Granted Feb 13, 2007·25 cites·2 claims
- 4170US5890988AAutomatic transmission for vehicle with reverse gear brakeAISIN AW CO·Filed 1996·Granted Apr 6, 1999·22 cites·15 claims
- 4269US5762172AHydraulic power transmission unitAISIN AW CO·Filed 1996·Granted Jun 9, 1998·22 cites·20 claims
- 4369US5010991ALock-up clutch control device for a torque converterAISIN AW CO·Filed 1989·Granted Apr 30, 1991·20 cites·8 claims
- 4468US7650973B2Hydraulic power transmission deviceAISIN AW CO·Filed 2006·Granted Jan 26, 2010·5 cites·14 claims
- 4568US6361468B1Automatic transmissionAISIN AW CO·Filed 1999·Granted Mar 26, 2002·18 cites·24 claims
- 4667US8590683B2Drive plate and ring gear member of drive plateTSUKAMOTO KAZUMASA·Filed 2011·Granted Nov 26, 2013·6 cites·11 claims
- 4767US8100809B2Automatic transmissionTANIGUCHI TAKAO·Filed 2005·Granted Jan 24, 2012·5 cites·21 claims
- 4867US5741200AControl apparatus for an automatic transmissionAISIN AW CO·Filed 1996·Granted Apr 21, 1998·22 cites·7 claims
- 4966US6475113B2Hydraulic control system of automatic transmissionAISIN AW CO·Filed 2001·Granted Nov 5, 2002·9 cites·16 claims
- 5066US5935041AAutomatic transmission with anti-rollback band brake pressure controlAISIN AW CO·Filed 1997·Granted Aug 10, 1999·22 cites·6 claims
Showing the top 50 of 123 patent records by PatentIndex Score.
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