Inventor · disambiguated record
Tokuyuki Takahashi
Also filed as: TAKAHASHI TOKUYUKI
26 granted patents·489 citations·filing 1981–1997
97Inventor score
Top patents by PatentIndex Score
26 records- 0193US5172799ACentrifugal hydraulic cancel mechanism for the rotating clutchTOYOTA MOTOR CO LTD·Filed 1992·Granted Dec 22, 1992·63 cites·18 claims
- 0293US4963124APlanetary gear transmission for motor vehicleTOYOTA MOTOR CO LTD·Filed 1989·Granted Oct 16, 1990·53 cites·11 claims
- 0392US4825368ADevice for controlling vehicle four wheel drive front/rear coupling device by learning effective front/rear vehicle wheels radius discrepancy, and method of operation thereofTOYOTA MOTOR CO LTD·Filed 1987·Granted Apr 25, 1989·50 cites·5 claims
- 0481US4866935AHydraulic torque converterAISIN WARNER·Filed 1986·Granted Sep 19, 1989·29 cites·4 claims
- 0578US5951433AAutomatic transmissionAISIN AW CO·Filed 1997·Granted Sep 14, 1999·32 cites·17 claims
- 0676US4840247ADevice for controlling 4wd vehicle central differential restriction device according to front and rear wheels rotational speed difference, and method of operation thereofTOYOTA MOTOR CO LTD·Filed 1987·Granted Jun 20, 1989·35 cites·12 claims
- 0773US4928557AHydraulic transmission controller with coupling pressure compensationTOYOTA MOTOR CO LTD·Filed 1988·Granted May 29, 1990·23 cites·10 claims
- 0864US4994006AAutomatic transmission for vehicle having stick-free radially duplicate clutchesTOYOTA MOTOR CO LTD·Filed 1989·Granted Feb 19, 1991·18 cites·2 claims
- 0963US4783960AFluid torque converter with axially cut away stator inner shellTOYOTA MOTOR CO LTD·Filed 1981·Granted Nov 15, 1988·18 cites·1 claims
- 1061US4840263AHydraulic control device for 4WD torque distribution clutch providing stabilized pressure characteristicsTOYOTA MOTOR CO LTD·Filed 1987·Granted Jun 20, 1989·13 cites·10 claims
- 1159US4938096AAutomatic transmission for vehicle having forward clutch and counter drive gear positioned between torque converter and gear mechanismTOYOTA MOTOR CO LTD·Filed 1989·Granted Jul 3, 1990·16 cites·5 claims
- 1253US5865709AApparatus for controlling vehicle lock-up clutch, wherein engine output is reduced upon releasing action of lock-up clutchTOYOTA MOTOR CO LTD·Filed 1997·Granted Feb 2, 1999·23 cites·13 claims
- 1353US4944719APlanetary gear type speed change device having one-way clutch operable in two functionsTOYOTA MOTOR CO LTD·Filed 1988·Granted Jul 31, 1990·12 cites·5 claims
- 1452US5010787AHydraulic control device for automatic transmission for vehicle adapted to engage clutch at different speed according to engine output powerTOYOTA MOTOR CO LTD·Filed 1989·Granted Apr 30, 1991·11 cites·6 claims
- 1550US4499789AAutomatic transmission with overdrive housing including its own accumulatorTOYOTA MOTOR CO LTD·Filed 1982·Granted Feb 19, 1985·11 cites·2 claims
- 1649US4987798AHydraulic control device for automatic transmission for vehicle with high accuracy reverse inhibition systemTOYOTA MOTOR CO LTD·Filed 1989·Granted Jan 29, 1991·10 cites·3 claims
- 1746US4984486AHydraulic pressure control device for automatic transmission for vehicle including reverse stage prevention systemTOYOTA MOTOR CO LTD·Filed 1989·Granted Jan 15, 1991·9 cites·5 claims
- 1844US5033331AHydraulic control device for automatic transmission for vehicle having clutch operable in two speed stages and two parallel hydraulic pressure supply passages thereforTOYOTA MOTOR CO LTD·Filed 1989·Granted Jul 23, 1991·8 cites·4 claims
- 1943US5014577AHydraulic control device for automatic transmission for vehicle having two parallel input clutchesTOYOTA MOTOR CO LTD·Filed 1989·Granted May 14, 1991·8 cites·6 claims
- 2043US4690239AControl system for intermediate differential in four-wheel drive vehicleTOYOTA MOTOR CO LTD·Filed 1986·Granted Sep 1, 1987·11 cites·5 claims
- 2142US5235877AShift control apparatus for automatic transmissionTOYOTA MOTOR CO LTD·Filed 1992·Granted Aug 17, 1993·9 cites·28 claims
- 2239US4920829AHydraulic pressure control device for automatic transmission for vehicle including reverse stage and lock-up clutch control systemsTOYOTA MOTOR CO LTD·Filed 1989·Granted May 1, 1990·6 cites·6 claims
- 2339US4867262AFour wheel drive system for vehicleTOYOTA MOTOR CO LTD·Filed 1987·Granted Sep 19, 1989·7 cites·7 claims
- 2436US4995284AAccumulator control device for hydraulic control device for automatic transmission for vehicle with engine load dependent backup controlTOYOTA MOTOR CO LTD·Filed 1989·Granted Feb 26, 1991·5 cites·4 claims
- 2536US4982624AHydraulic control device for automatic transmission for vehicle having friction engaging means operative in two jumping apart speed stagesTOYOTA MOTOR CO LTD·Filed 1989·Granted Jan 8, 1991·5 cites·3 claims
- 2635US5012700AHydraulic control device for automatic transmission for vehicle having clutch disengage control means independent of clutch engage control meansTOYOTA MOTOR CO LTD·Filed 1989·Granted May 7, 1991·4 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →