Inventor · disambiguated record
Fumitomo Yokoyama
Also filed as: YOKOYAMA FUMITOMO
23 granted patents·348 citations·filing 1980–1997
96Inventor score
Top patents by PatentIndex Score
23 records- 0194US4957195AHydraulic device for an automatic transmissionAISIN AW CO·Filed 1989·Granted Sep 18, 1990·57 cites·7 claims
- 0290US5947856AControl system for automatic transmission, including coordinated frictional engagement element release controlTOYOTA MOTOR CO LTD·Filed 1997·Granted Sep 7, 1999·48 cites·17 claims
- 0380US5964335AParking device for automatic transmissionAISIN AW CO·Filed 1997·Granted Oct 12, 1999·31 cites·23 claims
- 0470US4850251AHydraulic control device for automatic transmissionAISIN WARNER·Filed 1987·Granted Jul 25, 1989·22 cites·4 claims
- 0566US4839041AMagnetic oil strainerAISIN WARNER·Filed 1988·Granted Jun 13, 1989·21 cites·4 claims
- 0664US4903798AHydraulic apparatus for an automatic transmissionAISIN AW CO·Filed 1989·Granted Feb 27, 1990·20 cites·2 claims
- 0763US4889016AHydraulic servo regulating systems in an automatic transmissionAISIN WARNER·Filed 1987·Granted Dec 26, 1989·18 cites·2 claims
- 0862US5006102AFloating structure for interconnecting three clutches with a single actuator in an automatic transmissionAISIN AW CO·Filed 1989·Granted Apr 9, 1991·18 cites·12 claims
- 0959US4934218AHydraulic control device for an automatic transmissionAISIN AW CO·Filed 1989·Granted Jun 19, 1990·13 cites·2 claims
- 1055US4942782AReverse shift control device on automatic transmissionAISIN WARNER·Filed 1987·Granted Jul 24, 1990·14 cites·5 claims
- 1154US4974696APower transmission device for four wheel drive vehiclesAISIN AW CO·Filed 1988·Granted Dec 4, 1990·15 cites·9 claims
- 1253US5865702AOil temperature responsive hydraulic control system for an automatic transmissionAISIN AW CO·Filed 1997·Granted Feb 2, 1999·13 cites·4 claims
- 1350US5788034ALockup clutch for a torque converter and method of thermally treating a lockup clutch pistonAISIN AW CO·Filed 1996·Granted Aug 4, 1998·14 cites·12 claims
- 1445US4911000ARotation detecting device of an automatic transmissionAISIN AW CO·Filed 1989·Granted Mar 27, 1990·9 cites·2 claims
- 1544US5584775AAutomatic transmission for transverse engine vehicleAISIN AW CO·Filed 1995·Granted Dec 17, 1996·15 cites·8 claims
- 1640US4903550AHydraulic control device for automatic transmissionAISIN WARNER·Filed 1987·Granted Feb 27, 1990·7 cites·8 claims
- 1738US4909345APower transmission device for four wheel drive vehiclesAISIN AW CO·Filed 1988·Granted Mar 20, 1990·7 cites·16 claims
- 1832US4875392AManual valve in an automatic transmissionAISIN WARNER·Filed 1987·Granted Oct 24, 1989·3 cites·4 claims
- 1930US4315519AGovernor hydraulic pressure supply apparatus for automatic transmissionsAISIN WARNER·Filed 1980·Granted Feb 16, 1982·0 cites·4 claims
- 2029US5960919AAutomatic transmission with a separator for removing oil from the surface of a rotary memberAISIN AW CO·Filed 1997·Granted Oct 5, 1999·2 cites·5 claims
- 2128US5954177AOil seal for automatic transmissionAISIN AW CO·Filed 1997·Granted Sep 21, 1999·0 cites·20 claims
- 2228US4683903AGovernor valveAISIN WARNER·Filed 1985·Granted Aug 4, 1987·0 cites·3 claims
- 2328US4645441AInternal-gear pump with partition plate having a chamfered edgeAISIN WARNER·Filed 1985·Granted Feb 24, 1987·1 cites·4 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →