Inventor · disambiguated record
Keiju Abo
Also filed as: ABO KEIJU
33 granted patents·1,319 citations·filing 1983–2018
98Inventor score
Top patents by PatentIndex Score
33 records- 0199US6243638B1Electronic transmission control system for automotive vehicle with continuously variable automatic transmissionNISSAN MOTOR·Filed 1999·Granted Jun 5, 2001·244 cites·8 claims
- 0298US4589071AMethod and apparatus for controlling reduction ratio of continuously variable transmission with acceleration compensationNISSAN MOTOR·Filed 1983·Granted May 13, 1986·124 cites·22 claims
- 0397US4603602AMethod of controlling continuously variable transmissionNISSAN MOTOR·Filed 1983·Granted Aug 5, 1986·73 cites·7 claims
- 0496US6219608B1Electronic transmission control system for automotive vehicle with continuously variable automatic transmissionNISSAN MOTOR·Filed 1999·Granted Apr 17, 2001·76 cites·9 claims
- 0595US4735113ACreep torque and lock-up control for automatic transmissionNISSAN MOTOR·Filed 1986·Granted Apr 5, 1988·70 cites·8 claims
- 0693US4579021AMethod and apparatus for controlling line pressure in continuously variable transmissionNISSAN MOTOR·Filed 1983·Granted Apr 1, 1986·54 cites·11 claims
- 0788US5586953ASystem for controlling a continuously variable transmission in response to a sensed wheel decelerationNISSAN MOTOR·Filed 1995·Granted Dec 24, 1996·46 cites·20 claims
- 0888US4590561AMethod and apparatus for controlling reduction ratio of continuously variable transmission with accelerator pedal displacement speed compensationNISSAN MOTOR·Filed 1983·Granted May 20, 1986·40 cites·49 claims
- 0986US4576265AControl system for hydraulic automatic clutchNISSAN MOTOR·Filed 1983·Granted Mar 18, 1986·27 cites·13 claims
- 1085US6009365AVehicle drive system controller and control methodNISSAN MOTOR·Filed 1998·Granted Dec 28, 1999·76 cites·9 claims
- 1185US4764155AMethod of controlling continuously variable transmissionNISSAN MOTOR·Filed 1985·Granted Aug 16, 1988·40 cites·7 claims
- 1282US4597308AMethod and apparatus for controlling reduction ratio of continuously variable transmissionNISSAN MOTOR·Filed 1983·Granted Jul 1, 1986·35 cites·12 claims
- 1380US4536171AMethod and apparatus for controlling continuously variable transmissionNISSAN MOTOR·Filed 1983·Granted Aug 20, 1985·31 cites·18 claims
- 1477US4566354AMethod and apparatus for controlling reduction ratio of continuously variable transmission with engine coolant temperature compensationNISSAN MOTOR·Filed 1983·Granted Jan 28, 1986·29 cites·16 claims
- 1576US4526557AMethod and apparatus for controlling a continuously variable transmissionNISSAN MOTOR·Filed 1983·Granted Jul 2, 1985·27 cites·12 claims
- 1672US6253137B1Oil pressure supply device for vehicle drive systemNISSAN MOTOR·Filed 1998·Granted Jun 26, 2001·46 cites·9 claims
- 1771US6122587AVehicle drive system controller and control methodNISSAN MOTOR·Filed 1998·Granted Sep 19, 2000·42 cites·6 claims
- 1869US4776829APower transmission beltNISSAN MOTOR·Filed 1987·Granted Oct 11, 1988·18 cites·20 claims
- 1968US4583627AVehicle/engine operational parameter responsive clutch controlNISSAN MOTOR·Filed 1983·Granted Apr 22, 1986·16 cites·6 claims
- 2067US4542665AControl system for continuously variable transmission with space saving automatic clutch controlNISSAN MOTOR·Filed 1983·Granted Sep 24, 1985·19 cites·10 claims
- 2166US4651776AFluid pressure control valve for hydraulic actuatorNISSAN MOTOR·Filed 1986·Granted Mar 24, 1987·19 cites·7 claims
- 2266US4533340AHydraulic control system for continuously variable V-belt transmissionNISSAN MOTOR·Filed 1983·Granted Aug 6, 1985·19 cites·8 claims
- 2365US4557706AControl system for continuously variable V-belt transmissionNISSAN MOTOR·Filed 1983·Granted Dec 10, 1985·18 cites·11 claims
- 2463US6064161AVehicle drive device and vehicle drive device control methodNISSAN MOTOR·Filed 1998·Granted May 16, 2000·44 cites·6 claims
- 2562US4545265AHydraulic control system for continuously variable V-belt transmissionNISSAN MOTOR·Filed 1983·Granted Oct 8, 1985·16 cites·5 claims
- 2660US11767842B2Electric pump actuator, stepless transmission with electric pump actuator and control method for an electric pump actuatorSCHAEFFLER TECHNOLOGIES AG·Filed 2018·Granted Sep 26, 2023·0 cites·12 claims
- 2756US4616530AHydraulic control system for automatic transmission such as a continuously variable transmissionNISSAN MOTOR·Filed 1984·Granted Oct 14, 1986·11 cites·5 claims
- 2852US4736655AApparatus for controlling reduction ratio in continuously variable transmissionNISSAN MOTOR·Filed 1986·Granted Apr 12, 1988·15 cites·3 claims
- 2951US4584909AHydraulic control system for continuously variable V-belt transmissionNISSAN MOTOR·Filed 1983·Granted Apr 29, 1986·11 cites·7 claims
- 3048US5157993AHybrid continuously variable transmission with electronically controlled clutchNISSAN MOTOR·Filed 1990·Granted Oct 27, 1992·11 cites·9 claims
- 3147US4895552AControl system for transmissionNISSAN MOTOR·Filed 1989·Granted Jan 23, 1990·9 cites·3 claims
- 3244US4679466ALine pressure control device for hydraulic control system of automatic transmissionNISSAN MOTOR·Filed 1986·Granted Jul 14, 1987·10 cites·12 claims
- 3334US4729758ATransmission belt provided with push elementsNISSAN MOTOR·Filed 1986·Granted Mar 8, 1988·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →