Inventor · disambiguated record
Takahiko Hasegawa
Also filed as: HASEGAWA TAKAHIKO
40 granted patents·5 pending applications·182 citations·filing 1995–2025
97Inventor score
Files withHASEGAWA TAKAHIKO15TOYOTA MOTOR CO LTD15MANABE KOTA4YAMAHA MOTOR CO LTD4IMANISHI HIROYUKI2
Top patents by PatentIndex Score
45 records- 0185US10644335B2Fuel cell systemTOYOTA MOTOR CO LTD·Filed 2015·Granted May 5, 2020·2 cites·3 claims
- 0285US9450261B2Fuel cell system with regulation of DC/DC converter passing powerHASEGAWA TAKAHIKO·Filed 2008·Granted Sep 20, 2016·4 cites·1 claims
- 0385US8609289B2Fuel cell systemHASEGAWA TAKAHIKO·Filed 2008·Granted Dec 17, 2013·8 cites·7 claims
- 0484US8790838B2Voltage conversion control of a fuel cell systemHASEGAWA TAKAHIKO·Filed 2012·Granted Jul 29, 2014·3 cites·1 claims
- 0584US8728678B2Frequency control of DC/DC converter in a fuel cell systemHASEGAWA TAKAHIKO·Filed 2012·Granted May 20, 2014·3 cites·1 claims
- 0679US8670239B2Heat-release configuration, bracket for supporting heat-release plate and method of assembling heat-release configurationHASEGAWA TAKAHIKO·Filed 2011·Granted Mar 11, 2014·6 cites·8 claims
- 0779US7124852B2Acceleration sensor and engine control for motorcycleYAMAHA MOTOR CO LTD·Filed 2001·Granted Oct 24, 2006·22 cites·11 claims
- 0878US6941206B2Tip-over detection device for motor vehicleYAMAHA MOTOR CO LTD·Filed 2002·Granted Sep 6, 2005·44 cites·18 claims
- 0974US5555872AFuel pump control device for internal combustion engineNIPPON DENSO CO·Filed 1995·Granted Sep 17, 1996·31 cites·12 claims
- 1073US8268495B2Controller in a fuel cell system that controls the measurement of AC impedance and drives the DC/DC converterMANABE KOTA·Filed 2007·Granted Sep 18, 2012·2 cites·4 claims
- 1172US7633783B2Converter control deviceTOYOTA MOTOR CO LTD·Filed 2007·Granted Dec 15, 2009·11 cites·2 claims
- 1271US8828568B2Fuel cell systemHASEGAWA TAKAHIKO·Filed 2009·Granted Sep 9, 2014·2 cites·1 claims
- 1369US9079112B2Reversible spacer for a rotatable performance deviceHASEGAWA TAKAHIKO·Filed 2011·Granted Jul 14, 2015·3 cites·20 claims
- 1469US8968049B2Spacer for an adjustable width rotatable performance deviceHASEGAWA TAKAHIKO·Filed 2012·Granted Mar 3, 2015·2 cites·23 claims
- 1567US9024598B2Converter control deviceHASEGAWA TAKAHIKO·Filed 2009·Granted May 5, 2015·8 cites·1 claims
- 1666US8159850B2Converter control deviceMANABE KOTA·Filed 2007·Granted Apr 17, 2012·6 cites·8 claims
- 1765US11285842B2Fuel cell vehicleTOYOTA MOTOR CO LTD·Filed 2019·Granted Mar 29, 2022·1 cites·6 claims
- 1860US12203603B2Hydrogen gas supply system, point management system, and service management systemTOYOTA MOTOR CO LTD·Filed 2022·Granted Jan 21, 2025·0 cites·10 claims
- 1960US9561723B2Remaining fuel level displaying method for fuel cell system and fuel cell equipped vehicleTOYOTA MOTOR CO LTD·Filed 2015·Granted Feb 7, 2017·1 cites·10 claims
- 2059US8352122B2Engine control apparatus and straddle-type vehicleYAMAHA MOTOR CO LTD·Filed 2007·Granted Jan 8, 2013·3 cites·9 claims
- 2159US2025279642A1Image forming apparatus and method for controlling image forming apparatusYAMASHITA TOMOYUKI·Filed 2025·Application pending·0 cites
- 2258US11518275B2Fuel cell vehicleTOYOTA MOTOR CO LTD·Filed 2020·Granted Dec 6, 2022·0 cites·4 claims
- 2358US8884627B2Apparatus for detecting short-circuit of output diode in converterMINAMII TOSHIHIKO·Filed 2009·Granted Nov 11, 2014·6 cites·2 claims
- 2456US8111056B2Converter control device for a bidirectional power supply system having plural parallel phasesMANABE KOTA·Filed 2007·Granted Feb 7, 2012·2 cites·14 claims
- 2555US10218019B2Method of determining hydrogen deficiency and device for determining hydrogen deficiencyTOYOTA MOTOR CO LTD·Filed 2017·Granted Feb 26, 2019·0 cites·5 claims
- 2655US8970186B2DC-DC converter with an auxiliary circuit for performing soft-switchingMANABE KOTA·Filed 2011·Granted Mar 3, 2015·1 cites·4 claims
- 2755US8451006B2Fuel cell systemHASEGAWA TAKAHIKO·Filed 2008·Granted May 28, 2013·0 cites·5 claims
- 2852US8773874B2Power supply system and plurality parallel resonant converters having current blocking circuitHASEGAWA TAKAHIKO·Filed 2009·Granted Jul 8, 2014·3 cites·9 claims
- 2951US11293592B2Hydrogen gas supply system, point management system, and service management systemTOYOTA MOTOR CO LTD·Filed 2019·Granted Apr 5, 2022·0 cites·5 claims
- 3051US10586992B2Fuel cell systemTOYOTA MOTOR CO LTD·Filed 2017·Granted Mar 10, 2020·0 cites·2 claims
- 3148US10991961B2Fuel cell system and oxide layer removal methodTOYOTA MOTOR CO LTD·Filed 2019·Granted Apr 27, 2021·0 cites·4 claims
- 3248US2020180471A1Display deviceTOYOTA MOTOR CO LTD·Filed 2019·Application pending·0 cites
- 3346US9203314B2Converter controlling apparatus and multiphase converterIMANISHI HIROYUKI·Filed 2009·Granted Dec 1, 2015·0 cites·2 claims
- 3446US2021207970A1Navigation device and route guidance methodTOYOTA MOTOR CO LTD·Filed 2020·Application pending·0 cites
- 3544US8952702B2Fuel cell systemHASEGAWA TAKAHIKO·Filed 2011·Granted Feb 10, 2015·0 cites·5 claims
- 3644US2015043251A1Power conversion system and method of controlling power conversion systemTOYOTA MOTOR CO LTD·Filed 2014·Application pending·0 cites
- 3743US8906567B2Fuel cell systemHASEGAWA TAKAHIKO·Filed 2009·Granted Dec 9, 2014·0 cites·4 claims
- 3843US8653802B2Chopper circuit, DC/DC converter, and fuel cell systemHASEGAWA TAKAHIKO·Filed 2011·Granted Feb 18, 2014·0 cites·6 claims
- 3942US8050065B2Multi-phase voltage converting device, vehicle and control method of multi-phase voltage converting deviceTOYOTA MOTOR CO LTD·Filed 2008·Granted Nov 1, 2011·0 cites·9 claims
- 4042US2021199451A1Movement plan producing system and movement plan producing method for hydrogen filling vehicleTOYOTA MOTOR CO LTD·Filed 2020·Application pending·0 cites
- 4141US8896282B2Converter controllerHASEGAWA TAKAHIKO·Filed 2009·Granted Nov 25, 2014·0 cites·8 claims
- 4241US5867115ASignal processing circuit with offset compensationNIPPON DENSO CO·Filed 1996·Granted Feb 2, 1999·8 cites·23 claims
- 4337US9029030B2Fuel cell system including soft switching boost converterIMANISHI HIROYUKI·Filed 2010·Granted May 12, 2015·0 cites·4 claims
- 4436US8765312B2Converter controlling apparatusOSADA YASUHIRO·Filed 2009·Granted Jul 1, 2014·0 cites·2 claims
- 4534US7819103B2Straddle-type vehicleYAMAHA MOTOR CO LTD·Filed 2007·Granted Oct 26, 2010·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →