Inventor · disambiguated record
Mitsuhiro Umeyama
Also filed as: UMEYAMA MITSUHIRO
23 granted patents·957 citations·filing 1986–2002
97Inventor score
Top patents by PatentIndex Score
23 records- 0197US6524217B1Apparatus for controlling vehicle drive unitsTOYOTA MOTOR CO LTD·Filed 2000·Granted Feb 25, 2003·159 cites·15 claims
- 0296US6306057B1Hybrid drive systemTOYOTA MOTOR CO LTD·Filed 1998·Granted Oct 23, 2001·181 cites·19 claims
- 0390US6201312B1Drive control system for hybrid vehiclesTOYOTA MOTOR CO LTD·Filed 1999·Granted Mar 13, 2001·97 cites·6 claims
- 0485US6080199AGear designing method, gear manufacturing method, and gear manufactured by the same methodTOYOTA MOTOR CO LTD·Filed 1997·Granted Jun 27, 2000·64 cites·14 claims
- 0585US4693354AClutch damperTOYOTA MOTOR CO LTD·Filed 1986·Granted Sep 15, 1987·35 cites·5 claims
- 0684US6637530B1Hybrid vehicle control apparatus wherein battery is charged based on required charging amount and/or energy conversion efficiency of electric generatorTOYOTA MOTOR CO LTD·Filed 2000·Granted Oct 28, 2003·52 cites·11 claims
- 0784US5533943APlanetary gear device including planetary gears each having integrally formed large and small pinionsTOYOTA MOTOR CO LTD·Filed 1995·Granted Jul 9, 1996·72 cites·8 claims
- 0873US5065642AApparatus for absorbing torque variationAISIN SEIKI KABUSHIKI KAISHA K·Filed 1990·Granted Nov 19, 1991·36 cites·23 claims
- 0971US6881165B2Hydraulic control apparatus of vehicle and control methodTOYOTA MOTOR CO LTD·Filed 2002·Granted Apr 19, 2005·25 cites·19 claims
- 1070US5554082ATransmission with integral large and small planetary gears, and method of assembling the transmissionTOYOTA MOTOR CO LTD·Filed 1994·Granted Sep 10, 1996·26 cites·12 claims
- 1169US4950205AFlywheel with a torsional damperTOYOTA MOTOR CO LTD·Filed 1988·Granted Aug 21, 1990·24 cites·19 claims
- 1267US6508741B1Hydraulic control system for automatic transmissionsTOYOTA MOTOR CO LTD·Filed 2000·Granted Jan 21, 2003·19 cites·12 claims
- 1367US5156067ATorsional damper type flywheel deviceTOYOTA MOTOR CO LTD·Filed 1991·Granted Oct 20, 1992·26 cites·17 claims
- 1463US6662904B2Friction engagement element with lubricationAISIN AW CO·Filed 2001·Granted Dec 16, 2003·9 cites·11 claims
- 1563US5269199ATorional damper type flywheel deviceTOYOTA MOTOR CO LTD·Filed 1992·Granted Dec 14, 1993·22 cites·18 claims
- 1658US5499703APeak torque decreasing apparatus for an automobile power trainTOYOTA MOTOR CO LTD·Filed 1993·Granted Mar 19, 1996·23 cites·3 claims
- 1757US5032107AFlywheel device with a torsional damperTOYOTA MOTOR CO LTD·Filed 1989·Granted Jul 16, 1991·20 cites·17 claims
- 1856US5603241AVehicle transmission system capable of simultaneous slipping of frictional coupling devices disposed in different gear trains between input and output shaftsTOYOTA MOTOR CO LTD·Filed 1995·Granted Feb 18, 1997·15 cites·12 claims
- 1945US5111714ATorsional damper type flywheel deviceTOYOTA MOTOR CO LTD·Filed 1990·Granted May 12, 1992·15 cites·35 claims
- 2045US5025680ATorsional damper type flywheel deviceTOYOTA MOTOR CO LTD·Filed 1989·Granted Jun 25, 1991·12 cites·11 claims
- 2141US5097721ATorsional damper type flywheel deviceTOYOTA MOTOR CO LTD·Filed 1989·Granted Mar 24, 1992·10 cites·6 claims
- 2238US4947706AFlywheel with a torsional damperTOYOTA MOTOR CO LTD·Filed 1987·Granted Aug 14, 1990·10 cites·26 claims
- 2333US4950204AFlywheel with a torsional damperTOYOTA MOTOR CO LTD·Filed 1988·Granted Aug 21, 1990·5 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →