Inventor · disambiguated record
Takaji Umeno
Also filed as: UMENO TAKAJI
49 granted patents·3 pending applications·948 citations·filing 1993–2015
98Inventor score
Files withTOYOTA MOTOR CO LTD13TOYODA CHUO KENKYUSHO KK8TOYOTA CHUO KENKYUSHO KK7ISHIGAKI MASANORI4AISIN SEIKI2
Top patents by PatentIndex Score
52 records- 0196US8829713B2Power conversion circuit and power conversion circuit systemISHIGAKI MASANORI·Filed 2011·Granted Sep 9, 2014·34 cites·19 claims
- 0295US6122585AAnti-lock braking system based on an estimated gradient of friction torque, method of determining a starting point for anti-lock brake control, and wheel-behavior-quantity servo control means equipped with limit determination meansTOYODA CHUO KENKYUSHO KK·Filed 1997·Granted Sep 19, 2000·82 cites·16 claims
- 0394US8615372B2State estimating device for secondary batteryTOMURA SHUJI·Filed 2009·Granted Dec 24, 2013·31 cites·23 claims
- 0493US8108161B2State estimating device of secondary batteryTOMURA SHUJI·Filed 2008·Granted Jan 31, 2012·34 cites·25 claims
- 0593US6324461B1Road surface condition estimating apparatus and variation reduction processing apparatusTOYODA CHUO KENKYUSHO KK·Filed 1998·Granted Nov 27, 2001·64 cites·10 claims
- 0692US9647544B2Magnetic component, power converter and power supply systemTOYOTA CHUO KENKYUSHO KK·Filed 2013·Granted May 9, 2017·11 cites·8 claims
- 0792US6182001B1Braking estimation device, anti-lock brake controller, and braking pressure controllerTOYODA CHUO KENKYUSHO KK·Filed 1997·Granted Jan 30, 2001·61 cites·7 claims
- 0890US8515607B2Hybrid vehicle controllerAMANO YASUSHI·Filed 2011·Granted Aug 20, 2013·18 cites·13 claims
- 0989US7248958B2Road surface state estimating apparatus, road surface friction state estimating apparatus, road surface state physical quantity calculating apparatus, and road surface state announcing apparatusTOYOTA CHUO KENKYUSHO KK·Filed 2003·Granted Jul 24, 2007·29 cites·26 claims
- 1088US8384236B2Vehicle mounted converterTOYOTA CHUO KENKYUSHO KK·Filed 2010·Granted Feb 26, 2013·7 cites·3 claims
- 1186US6522968B1Device for estimating road friction stateTOYOTA MOTOR CO LTD·Filed 2000·Granted Feb 18, 2003·24 cites·16 claims
- 1286US6264292B1Wheel condition estimating apparatusTOYODA CHUO KENKYUSHO KK·Filed 1998·Granted Jul 24, 2001·39 cites·24 claims
- 1385US8935023B2Secondary battery system and vehicle having secondary battery systemHIROTA YASUKI·Filed 2010·Granted Jan 13, 2015·6 cites·13 claims
- 1485US6668637B2Tire air pressure estimating apparatusTOYODA CHUO KENKYUSHO KK·Filed 2001·Granted Dec 30, 2003·22 cites·20 claims
- 1585US6142026AWheel information estimating apparatusTOYOTA MOTOR CO LTD·Filed 1995·Granted Nov 7, 2000·50 cites·14 claims
- 1685US5826207ADevice for estimating air pressure of tire from vibration components of vehicle wheel speedTOYOTA MOTOR CO LTD·Filed 1995·Granted Oct 20, 1998·53 cites·10 claims
- 1784US9431824B2DC-DC converter comprising DC power sources to be connected in parallel or in seriesISHIGAKI MASANORI·Filed 2011·Granted Aug 30, 2016·8 cites·16 claims
- 1883US8294322B2Rotating electrical machineAIKI KOSUKE·Filed 2009·Granted Oct 23, 2012·15 cites·6 claims
- 1983US6584427B2Method and apparatus for estimating tire air pressureAISIN SEIKI·Filed 2001·Granted Jun 24, 2003·21 cites·20 claims
- 2082US5588721AVibration analysis of the rotating wheel for controlling anti-lock braking operationTOYODA CHUO KENKYUSHO KK·Filed 1995·Granted Dec 31, 1996·31 cites·23 claims
- 2180US6640623B2Road surface state estimating deviceTOYOTA MOTOR CO LTD·Filed 2001·Granted Nov 4, 2003·18 cites·13 claims
- 2279US8340849B2Hybrid vehicle controllerAMANO YASUSHI·Filed 2007·Granted Dec 25, 2012·16 cites·14 claims
- 2379US5982279ATire air pressure detecting deviceDENSO CORP·Filed 1997·Granted Nov 9, 1999·49 cites·16 claims
- 2479US5531110AMethod and apparatus for estimating disturbance acting on vehicle tired wheel based on wheel angular velocity and equation of stateTOYOTA MOTOR CO LTD·Filed 1994·Granted Jul 2, 1996·34 cites·26 claims
- 2577US9438115B2Power supply systemISHIGAKI MASANORI·Filed 2012·Granted Sep 6, 2016·7 cites·18 claims
- 2677US5939626ATire pressure detecting device which compares driven and driving wheel speeds and acceleration wherein judgment is prohibited when slippage occursNIPPON SOKEN·Filed 1997·Granted Aug 17, 1999·40 cites·5 claims
- 2776US6575023B2Tire air pressure determining apparatus and method of determining tire air pressureTOYOTA MOTOR CO LTD·Filed 2001·Granted Jun 10, 2003·15 cites·29 claims
- 2875US9450499B2Electric power conversion circuit systemTOYOTA CHUO KENKYUSHO KK·Filed 2015·Granted Sep 20, 2016·3 cites·6 claims
- 2972US9270187B2Electric power conversion systemTAKAGI KENICHI·Filed 2014·Granted Feb 23, 2016·4 cites·6 claims
- 3072US5913241AApparatus for estimating vehicle tire air pressure from not only tired wheel motion but also tire temperatureTOYOTA MOTOR CO LTD·Filed 1997·Granted Jun 15, 1999·32 cites·8 claims
- 3169US8310181B2Motor drive system using potential at neutral pointTANIGUCHI MAKOTO·Filed 2010·Granted Nov 13, 2012·3 cites·5 claims
- 3269US8095255B2Control apparatus for hybrid vehicleEBUCHI HIROAKI·Filed 2009·Granted Jan 10, 2012·8 cites·4 claims
- 3368US9209701B2Electric power conversion systemTAKAGI KENICHI·Filed 2014·Granted Dec 8, 2015·3 cites·4 claims
- 3467US7677340B2Hybrid-type forkliftTOYOTA JIDOSHOKKI KK·Filed 2006·Granted Mar 16, 2010·9 cites·7 claims
- 3566US9434273B2Electrical source control apparatusTOYOTA MOTOR CO LTD·Filed 2014·Granted Sep 6, 2016·2 cites·16 claims
- 3665US5412584ADynamic system diagnosing apparatus, tire air pressure diagnosing apparatus and vehicle body weight change detecting apparatus using sameTOYODA CHUO KENKYUSHO KK·Filed 1993·Granted May 2, 1995·24 cites·30 claims
- 3763US9539903B2External power supply systemKINOMURA SHIGEKI·Filed 2014·Granted Jan 10, 2017·2 cites·7 claims
- 3863US8513830B2Power supply apparatus for vehicleKIMURA KENJI·Filed 2011·Granted Aug 20, 2013·3 cites·5 claims
- 3963US6879938B2Tire burst prediction deviceTOYOTA MOTOR CO LTD·Filed 2001·Granted Apr 12, 2005·7 cites·5 claims
- 4063US6591670B1Device for detecting wheel speed signal frequencyTOYODA CHUO KENKYUSHO KK·Filed 2000·Granted Jul 15, 2003·7 cites·19 claims
- 4162US8547192B2Electromagnetic actuatorIDESHIO YUKIHIKO·Filed 2008·Granted Oct 1, 2013·2 cites·13 claims
- 4259US6871530B2Physical quantity estimating apparatus and tire state determining apparatus, and estimating method of same and determination method of sameTOYOTA CHUO KENKYUSHO KK·Filed 2003·Granted Mar 29, 2005·5 cites·38 claims
- 4357US9935548B2Power supply system having two DC power suppliesTOYOTA CHUO KENKYUSHO KK·Filed 2015·Granted Apr 3, 2018·1 cites·13 claims
- 4453US6711508B2Method and apparatus for estimating tire air pressureAISIN SEIKI·Filed 2001·Granted Mar 23, 2004·3 cites·4 claims
- 4551US2015194256A1Magnetic coupling inductor and multi-port converterTOYOTA MOTOR CO LTD·Filed 2014·Application pending·0 cites
- 4649US9669727B2Electrical source control apparatusTOYOTA MOTOR CO LTD·Filed 2014·Granted Jun 6, 2017·0 cites·6 claims
- 4748US9660307B2Battery temperature adjustment deviceHIROTA YASUKI·Filed 2011·Granted May 23, 2017·0 cites·7 claims
- 4847US2010276245A1Dog clutch actuatorTOYOTA MOTOR CO LTD·Filed 2008·Application pending·0 cites
- 4946US6447076B1Device and method for estimating physical quantity and device and method for ABS controlTOYOTA MOTOR CO LTD·Filed 1999·Granted Sep 10, 2002·8 cites·14 claims
- 5045US9973071B2Control device and control method for power converterISHIGAKI MASANORI·Filed 2012·Granted May 15, 2018·0 cites·10 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →