Inventor · disambiguated record
Hiromasa Sakai
Also filed as: SAKAI HIROMASA
34 granted patents·2 pending applications·778 citations·filing 1992–2014
98Inventor score
Top patents by PatentIndex Score
36 records- 0198US6659901B2Infinite speed ratio continuously variable transmissionNISSAN MOTOR·Filed 2001·Granted Dec 9, 2003·128 cites·10 claims
- 0294US5950787ARotation clutch device for automatic transmissionNISSAN MOTOR·Filed 1997·Granted Sep 14, 1999·63 cites·8 claims
- 0387US6023648AAnti-creep control apparatus for automatic transmissionNISSAN MOTOR·Filed 1997·Granted Feb 8, 2000·41 cites·9 claims
- 0486US5616100ALockup control system for torque converterNISSAN MOTOR CO INC·Filed 1995·Granted Apr 1, 1997·41 cites·5 claims
- 0584US6569051B2Infinite speed ratio continuously variable transmissionNISSAN MOTOR·Filed 2001·Granted May 27, 2003·27 cites·16 claims
- 0683US6409625B1Controller of toroidal continuously variable transmissionNISSAN MOTOR·Filed 2000·Granted Jun 25, 2002·23 cites·14 claims
- 0782US6569052B2Control of infinitely variable transmissionNISSAN MOTOR·Filed 2001·Granted May 27, 2003·23 cites·12 claims
- 0882US6358179B1Clutch control device of infinite variable speed ratio transmissionNISSAN MOTOR·Filed 2000·Granted Mar 19, 2002·23 cites·16 claims
- 0982US5616099ALock-up control system for torque converterNISSAN MOTOR·Filed 1995·Granted Apr 1, 1997·35 cites·2 claims
- 1080US7455920B2Fuel cell systemNISSAN MOTOR·Filed 2003·Granted Nov 25, 2008·17 cites·14 claims
- 1176US5938563AShift control apparatus of automatic transmissionNISSAN MOTOR·Filed 1998·Granted Aug 17, 1999·28 cites·13 claims
- 1275US5935039ANon-finite speed change ratio transmission deviceNISSAN MOTOR·Filed 1998·Granted Aug 10, 1999·27 cites·5 claims
- 1375US5288279AHydraulic control system for automatic transmissionNISSAN MOTOR·Filed 1992·Granted Feb 22, 1994·26 cites·18 claims
- 1473US5928111AFuel cut-off and fuel-supply recovery control system for internal combustion engine coupled to an automatic power transmission with a lock-up torque converterNISSAN MOTOR·Filed 1997·Granted Jul 27, 1999·30 cites·10 claims
- 1571US6351700B1Speed change controller and control method of infinite speed ratio continuously variable transmissionNISSAN MOTOR·Filed 2000·Granted Feb 26, 2002·27 cites·11 claims
- 1670US6317672B1Controller for infinite speed ratio transmissionNISSAN MOTOR·Filed 2000·Granted Nov 13, 2001·15 cites·10 claims
- 1769US5906559AAutomatic transmission with anti-creep control apparatusNISSAN MOTOR·Filed 1997·Granted May 25, 1999·22 cites·9 claims
- 1868US5925086AVehicular automatic transmission and apparatus and method for controlling gear shift thereofNISSAN MOTOR·Filed 1997·Granted Jul 20, 1999·22 cites·49 claims
- 1967US6436001B1Speed change controller for infinite speed ratio transmissionNISSAN MOTOR·Filed 2000·Granted Aug 20, 2002·15 cites·16 claims
- 2067US5916058AAnti-creep control apparatus of automatic transmissionNISSAN MOTOR·Filed 1997·Granted Jun 29, 1999·20 cites·5 claims
- 2166US8980490B2Fuel cell systemNISSAN MOTOR·Filed 2014·Granted Mar 17, 2015·0 cites·13 claims
- 2266US6312357B1Speed ratio controller and control method of non-finite speed ratio transmission deviceNISSAN MOTOR·Filed 1999·Granted Nov 6, 2001·21 cites·10 claims
- 2364US5609551ALockup control system for torque converterNISSAN MOTOR·Filed 1995·Granted Mar 11, 1997·19 cites·5 claims
- 2462US6612965B2Drive force control system for vehicle with infinite speed ratio continuously variable transmissionNISSAN MOTOR·Filed 2001·Granted Sep 2, 2003·9 cites·11 claims
- 2561US6287232B1Non-finite speed ratio continuously variable transmission deviceNISSAN MOTOR·Filed 1999·Granted Sep 11, 2001·17 cites·3 claims
- 2660US6080079AToroidal continuously variable transmissionNISSAN MOTOR·Filed 1999·Granted Jun 27, 2000·16 cites·7 claims
- 2756US6056094AHydraulic control device for automatic transmissionNISSAN MOTOR·Filed 1998·Granted May 2, 2000·14 cites·8 claims
- 2851US6045480AHydraulic pressure control device of automatic transmissionNISSAN MOTOR·Filed 1998·Granted Apr 4, 2000·10 cites·3 claims
- 2950US8822092B2Fuel cell systemTANIGUCHI IKUHIRO·Filed 2005·Granted Sep 2, 2014·0 cites·9 claims
- 3049US5906556ALine pressure control apparatus of automatic transmissionNISSAN MOTOR·Filed 1997·Granted May 25, 1999·11 cites·7 claims
- 3148US6142906AHydraulic pressure control device of automatic transmissionNISSAN MOTOR·Filed 2000·Granted Nov 7, 2000·3 cites·4 claims
- 3246US8034497B2Control device of vehicular fuel cell system and related methodNISSAN MOTOR·Filed 2004·Granted Oct 11, 2011·0 cites·7 claims
- 3346US2007122668A1Fuel cell system and method of starting itNISSAN MOTOR·Filed 2004·Application pending·0 cites
- 3445US7427451B2Fuel cell systemNISSAN MOTOR·Filed 2003·Granted Sep 23, 2008·0 cites·13 claims
- 3543US2004028970A1Fuel cell system and methodFiled 2002·Application pending·0 cites
- 3637US6086505ASpeed control device of toroidal type continuously variable transmissionNISSAN MOTOR·Filed 1999·Granted Jul 11, 2000·5 cites·14 claims
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