Inventor
Takahiko Hasegawa
Inventor
Toyota, JP
Overview
Patents· 37 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y02Tprimary
Y02TClimate change mitigation technologies related to transportation15%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems12%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy11%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution11%
B60LPropulsion of electrically-propelled vehicles10%
H02JElectric power networks5%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for4%
F02DControlling combustion engines3%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
11,046,250Electronic mirror system202111,014,514Vehicle surroundings display device202110,644,335Fuel cell system202010,586,992Fuel cell system202010,218,019Method of determining hydrogen deficiency and device for determining hydrogen deficiency20199,561,723'Remaining fuel level displaying method for fuel cell system and fuel cell equipped vehicle'20179,450,261'Fuel cell system with regulation of DC/DC converter passing power'20169,203,314'Converter controlling apparatus and multiphase converter'20159,079,112'Reversible spacer for a rotatable performance device'20159,029,030'Fuel cell system including soft switching boost converter'20159,024,598'Converter control device'20158,968,049'Spacer for an adjustable width rotatable performance device'20158,970,186'DC-DC converter with an auxiliary circuit for performing soft-switching'20158,952,702'Fuel cell system'20158,906,567'Fuel cell system'20148,896,282'Converter controller'20148,884,627'Apparatus for detecting short-circuit of output diode in converter'20148,828,568'Fuel cell system'20148,790,838'Voltage conversion control of a fuel cell system'20148,773,874'Power supply system and plurality parallel resonant converters having current blocking circuit'20148,765,312'Converter controlling apparatus'20148,728,678'Frequency control of DC/DC converter in a fuel cell system'20148,670,239'Heat-release configuration, bracket for supporting heat-release plate and method of assembling heat-release configuration'20148,653,802'Chopper circuit, DC/DC converter, and fuel cell system'20148,609,289'Fuel cell system'20138,451,006'Fuel cell system'20138,352,122'Engine control apparatus and straddle-type vehicle'20138,268,495'Controller in a fuel cell system that controls the measurement of AC impedance and drives the DC/DC converter'20128,159,850'Converter control device'20128,111,056'Converter control device for a bidirectional power supply system having plural parallel phases'20128,050,065'Multi-phase voltage converting device, vehicle and control method of multi-phase voltage converting device'20117,819,103'Straddle-type vehicle'20107,633,783'Converter control device'20097,124,852'Acceleration sensor and engine control for motorcycle'20066,941,206'Tip-over detection device for motor vehicle'20055,867,115'Signal processing circuit with offset compensation'19995,555,872'Fuel pump control device for internal combustion engine'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–1999Based in Nukata-gun, JP· patent location history
2005–2013Based in Shizuoka, JP· patent location history
2009–2021Patents assigned to TOYOTA MOTOR CO LTD (28)· patent assignee history
2009–2020Based in Toyota, JP· patent location history
2012–2016Patents assigned to HASEGAWA TAKAHIKO (24)· patent assignee history
2012–2016Patents assigned to MANABE KOTA (15)· patent assignee history
2014–2015Patents assigned to KITAMURA NOBUYUKI (6)· patent assignee history
2014Patents assigned to MINAMII TOSHIHIKO (4)· patent assignee history
2015Based in Naritahigashi, JP· patent location history
2021Based in Aichi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOYOTA MOTOR CO LTD | 28 | 2009–2021 |
| HASEGAWA TAKAHIKOself | 24 | 2012–2016 |
| MANABE KOTA | 15 | 2012–2016 |
| KITAMURA NOBUYUKI | 6 | 2014–2015 |
| MINAMII TOSHIHIKO | 4 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Toyota, JP | 26 | 2009–2020 |
| Shizuoka, JP | 4 | 2005–2013 |
| Aichi, JP | 2 | 2021 |
| Naritahigashi, JP | 2 | 2015 |
| Nukata-gun, JP | 2 | 1996–1999 |