Inventor · disambiguated record
Goro Tamai
Also filed as: TAMAI GORO
111 granted patents·13 pending applications·1,828 citations·filing 2000–2024
99Inventor score
Files withGM GLOBAL TECH OPERATIONS INC35GM GLOBAL TECH OPERATIONS LLC33GEN MOTORS CORP15TAMAI GORO13PUIU DUMITRU3
Top patents by PatentIndex Score
124 records- 0197US11054001B1Electric drive unit with double helical gearGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Jul 6, 2021·10 cites·17 claims
- 0297US8702544B2Wide-node drive systemTAMAI GORO·Filed 2012·Granted Apr 22, 2014·41 cites·20 claims
- 0397US7768220B2Harmonic torque ripple reduction at low motor speedsGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Aug 3, 2010·55 cites·20 claims
- 0497US7267090B2Method of starting a hybrid vehicleGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Sep 11, 2007·66 cites·10 claims
- 0597US6275004B1System for battery module balancing via variable voltage DC-DC converter in a hybrid-electric powertrainGEN MOTORS CORP·Filed 2000·Granted Aug 14, 2001·206 cites·18 claims
- 0696US10581287B2Permanent magnet electric machine with variable magnet orientationGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Mar 3, 2020·7 cites·20 claims
- 0796US6945905B2CVT hybrid powertrain fueling and engine stop-start control methodGEN MOTORS CORP·Filed 2003·Granted Sep 20, 2005·42 cites·11 claims
- 0896US6376927B1Hybrid electric drive and control method thereforSATURN CORP·Filed 2000·Granted Apr 23, 2002·143 cites·25 claims
- 0995US9707956B2Hybrid powertrain and modular rear drive unit for sameGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Jul 18, 2017·10 cites·13 claims
- 1095US9126581B2Hybrid powertrain and modular rear drive unit for sameGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Sep 8, 2015·32 cites·15 claims
- 1195US7220217B2Engine spin-up control with natural torque smoothingGEN MOTORS CORP·Filed 2005·Granted May 22, 2007·39 cites·26 claims
- 1294US8512187B2Multi-mode drive unitPUIU DUMITRU·Filed 2010·Granted Aug 20, 2013·17 cites·2 claims
- 1394US6830524B2Crank drive belt system with triple pulley tensionerGEN MOTORS CORP·Filed 2002·Granted Dec 14, 2004·48 cites·9 claims
- 1494US6307277B1Apparatus and method for a torque and fuel control system for a hybrid vehicleGEN MOTORS CORP·Filed 2000·Granted Oct 23, 2001·196 cites·19 claims
- 1593US11224147B1Direct cooling of inverter switchesGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Jan 11, 2022·3 cites·20 claims
- 1693US6616569B2Torque control system for a hybrid vehicle with an automatic transmissionGEN MOTORS CORP·Filed 2001·Granted Sep 9, 2003·94 cites·21 claims
- 1793US6453864B1Crankshaft rotation control in a hybrid electric vehicleGEN MOTORS CORP·Filed 2001·Granted Sep 24, 2002·78 cites·11 claims
- 1892US10505538B1Dynamic gate drive system and control methodGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Dec 10, 2019·15 cites·20 claims
- 1992US7516007B2Anti-rollback control for hybrid and conventional powertrain vehiclesGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Apr 7, 2009·34 cites·20 claims
- 2091US10538238B2Hybrid powertrain and modular rear drive unit for sameGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Jan 21, 2020·5 cites·13 claims
- 2191US7465250B2On-board hybrid transmission auxiliary-pump priming control systemGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Dec 16, 2008·30 cites·20 claims
- 2291US6823840B1Manifold absolute pressure control system and method for a hybrid electric vehicleGEN MOTORS CORP·Filed 2003·Granted Nov 30, 2004·54 cites·18 claims
- 2390US10541578B2Permanent magnet electric machine with moveable flux-shunting elementsGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Jan 21, 2020·3 cites·20 claims
- 2490US6612386B2Apparatus and method for controlling a hybrid vehicleGEN MOTORS CORP·Filed 2001·Granted Sep 2, 2003·57 cites·16 claims
- 2589US8840500B2Wide-node drive systemTAMAI GORO·Filed 2012·Granted Sep 23, 2014·12 cites·20 claims
- 2689US7032393B2Climate cooling control systems and methods for hybrid vehiclesGEN MOTORS CORP·Filed 2003·Granted Apr 25, 2006·38 cites·4 claims
- 2787US11662013B2Stalactite passive lubrication systemGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted May 30, 2023·4 cites·20 claims
- 2886US7646289B2Fuel economy indicator lamp control systemGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Jan 12, 2010·20 cites·22 claims
- 2985US10640104B2Anticipatory control for hybrid vehicle propulsion systemGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted May 5, 2020·5 cites·20 claims
- 3085US8444516B2Multi-speed drive unitTAMAI GORO·Filed 2010·Granted May 21, 2013·12 cites·6 claims
- 3185US7669569B2Crankshaft stop positioning control systemGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Mar 2, 2010·16 cites·22 claims
- 3285US7637842B2Method and apparatus for control of a transmission torque converter clutchGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Dec 29, 2009·17 cites·17 claims
- 3382US9246369B2Electric motorGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Jan 26, 2016·5 cites·20 claims
- 3481US6769389B2Dual voltage tandem engine start system and methodGEN MOTORS CORP·Filed 2002·Granted Aug 3, 2004·32 cites·12 claims
- 3580US10688881B2Energy transfer systems and methodsGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Jun 23, 2020·3 cites·20 claims
- 3680US9068645B2Transmission sump level control systemGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Jun 30, 2015·5 cites·20 claims
- 3779US7600827B2Rollback reduction in hybrid or conventional powertrain vehicle via vehicle stability enhancement system (VSES)GM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Oct 13, 2009·19 cites·33 claims
- 3878US8961343B2Clutch system for a transmissionTAMAI GORO·Filed 2011·Granted Feb 24, 2015·4 cites·15 claims
- 3978US7543670B2Wheel slip control systemGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Jun 9, 2009·12 cites·20 claims
- 4078US6586865B1Variable gap spark plugDELPHI TECH INC·Filed 2000·Granted Jul 1, 2003·16 cites·7 claims
- 4177US9017203B2Coaxial gear systemGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Apr 28, 2015·4 cites·20 claims
- 4277US7834582B2Method and apparatus for controlling vehicle battery chargingGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Nov 16, 2010·19 cites·19 claims
- 4377US7637846B2Method and apparatus for control of transmission shiftingGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Dec 29, 2009·15 cites·22 claims
- 4477US6213090B1Engine cylinder headSATURN CORP·Filed 2000·Granted Apr 10, 2001·21 cites·7 claims
- 4576US8825283B2Electric-drive tractability indicator integrated in hybrid electric vehicle tachometerTAMAI GORO·Filed 2012·Granted Sep 2, 2014·3 cites·13 claims
- 4676US7757665B2Fuel-cut manifold absolute pressure controlGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Jul 20, 2010·8 cites·15 claims
- 4774US8346418B2Method of smoothing output torqueGM GLOBAL TECH OPERATIONS INC·Filed 2009·Granted Jan 1, 2013·9 cites·10 claims
- 4874US8090499B2Anti-rollback control via grade information for hybrid and conventional vehiclesTAMAI GORO·Filed 2004·Granted Jan 3, 2012·25 cites·21 claims
- 4974US7607293B2Intake manifold pressure control apparatus and method for a hybrid propulsion systemGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Oct 27, 2009·8 cites·5 claims
- 5073US12420674B2Thermal management system for a rechargeable battery pack assemblyGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Granted Sep 23, 2025·0 cites·20 claims
Showing the top 50 of 124 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →