Inventor · disambiguated record
Tatsumi Yamauchi
Also filed as: YAMAUCHI TATSUMI
73 granted patents·1 pending application·1,082 citations·filing 1985–2021
99Inventor score
Files withHITACHI LTD46KUDO AKIHIKO6HITACHI AUTOMOTIVE SYSTEMS LTD5EMORI AKIHIKO3HITACHI APPLIANCES INC3
Top patents by PatentIndex Score
74 records- 0196US8723527B2Battery monitoring systemKUDO AKIHIKO·Filed 2010·Granted May 13, 2014·43 cites·21 claims
- 0293US8212571B2Vehicle power supply deviceEMORI AKIHIKO·Filed 2008·Granted Jul 3, 2012·61 cites·11 claims
- 0392US12334289B2Relay control device and method of controlling relay control deviceHITACHI ASTEMO LTD·Filed 2021·Granted Jun 17, 2025·2 cites·8 claims
- 0492US9340122B2Battery system monitoring apparatusYAMAUCHI TATSUMI·Filed 2011·Granted May 17, 2016·24 cites·22 claims
- 0592US8159184B2Automotive power supply systemEMORI AKIHIKO·Filed 2008·Granted Apr 17, 2012·48 cites·5 claims
- 0691US11411259B2Battery control unitHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Aug 9, 2022·3 cites·9 claims
- 0791US8466708B2State detection device for power supply systemKAWAHARA YOUHEI·Filed 2010·Granted Jun 18, 2013·11 cites·17 claims
- 0890US7208918B2Vehicle rotating electric machineHITACHI LTD·Filed 2005·Granted Apr 24, 2007·19 cites·11 claims
- 0990US4678943AInverting logic buffer BICMOS switching circuit using an enabling switch for three-state operation with reduced dissipationHITACHI LTD·Filed 1985·Granted Jul 7, 1987·51 cites·13 claims
- 1089US9746525B2Battery system monitoring deviceKUDO AKIHIKO·Filed 2011·Granted Aug 29, 2017·16 cites·11 claims
- 1189US8981721B2Battery control device and electricity storage deviceYAMAUCHI TATSUMI·Filed 2011·Granted Mar 17, 2015·14 cites·12 claims
- 1289US6657459B2Gate circuit and semiconductor circuit to process low amplitude signals, memory, processor and information processing system manufactured by use of themHITACHI LTD·Filed 2002·Granted Dec 2, 2003·33 cites·28 claims
- 1388US9404975B2Battery monitoring systemHITACHI LTD·Filed 2014·Granted Aug 2, 2016·11 cites·19 claims
- 1488US8264204B2Cell controller, battery module and power supply systemNAGAOKA MASAKI·Filed 2008·Granted Sep 11, 2012·34 cites·31 claims
- 1588US7936573B2Bi-directional DC-DC converter and control methodHITACHI LTD·Filed 2010·Granted May 3, 2011·13 cites·14 claims
- 1688US6538866B1Circuit for protecting a load from an overvoltageHITACHI LTD·Filed 2000·Granted Mar 25, 2003·47 cites·29 claims
- 1787US8829717B2Battery control device and battery systemKUDO AKIHIKO·Filed 2011·Granted Sep 9, 2014·16 cites·8 claims
- 1887US7523619B2Indoor and outdoor unit communication via signal from a power lineHITACHI APPLIANCES INC·Filed 2004·Granted Apr 28, 2009·48 cites·4 claims
- 1986US7692935B2Bi-directional DC-DC converter and control methodHITACHI LTD·Filed 2006·Granted Apr 6, 2010·22 cites·14 claims
- 2084US9048667B2Cell controller, battery module and power supply systemNAGAOKA MASAKI·Filed 2012·Granted Jun 2, 2015·10 cites·23 claims
- 2183US9496749B2Storage battery control device and electrical storage deviceNODA MITSUO·Filed 2012·Granted Nov 15, 2016·13 cites·9 claims
- 2283US5153452ABipolar-MOS IC with internal voltage generator and LSI device with internal voltage generatorHITACHI LTD·Filed 1989·Granted Oct 6, 1992·33 cites·39 claims
- 2382US9130379B2Integrated circuit for controlling battery cell and vehicle power supply systemSAKABE KEI·Filed 2008·Granted Sep 8, 2015·25 cites·36 claims
- 2482US5677641AGate circuit and semiconductor circuit to process low amplitude signals, memory, processor and information processing system manufactured by use of themHITACHI LTD·Filed 1995·Granted Oct 14, 1997·34 cites·5 claims
- 2580US10202041B2Battery monitoring systemHITACHI LTD·Filed 2016·Granted Feb 12, 2019·3 cites·8 claims
- 2680US8426047B2Multi-series battery control systemEMORI AKIHIKO·Filed 2008·Granted Apr 23, 2013·17 cites·6 claims
- 2780US7334417B2Air conditioner and power line communication systemHITACHI APPLIANCES INC·Filed 2005·Granted Feb 26, 2008·15 cites·9 claims
- 2879US7453240B2Generating apparatus and motor control apparatusHITACHI LTD·Filed 2006·Granted Nov 18, 2008·12 cites·9 claims
- 2978US6713975B2Lighting apparatus, lighting control system and home electric applianceHITACHI LTD·Filed 2001·Granted Mar 30, 2004·26 cites·20 claims
- 3077US5841300ASemiconductor integrated circuit apparatusHITACHI LTD·Filed 1997·Granted Nov 24, 1998·27 cites·37 claims
- 3177US5398318AHigh speed, low noise output buffer with non-identical pairs of output transistorsHITACHI LTD·Filed 1990·Granted Mar 14, 1995·26 cites·28 claims
- 3276US11418042B2Battery management unitHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted Aug 16, 2022·2 cites·6 claims
- 3375US7770403B2Indoor and outdoor unit communication via signal from a power lineHITACHI APPLIANCES INC·Filed 2009·Granted Aug 10, 2010·6 cites·10 claims
- 3469US6029220APipelined semiconductor devices suitable for ultra large scale integrationHITACHI LTD·Filed 1992·Granted Feb 22, 2000·43 cites·20 claims
- 3568US9519027B2Battery monitoring device and battery system monitoring deviceKUDO AKIHIKO·Filed 2012·Granted Dec 13, 2016·2 cites·10 claims
- 3667US6282136B1Semiconductor memory devices and sensors using the sameHITACHI LTD·Filed 2000·Granted Aug 28, 2001·15 cites·5 claims
- 3764US5787043ASemiconductor memory device having a redundancy capabilityHITACHI LTD·Filed 1995·Granted Jul 28, 1998·24 cites·18 claims
- 3863US5387827ASemiconductor integrated circuit having logic gatesHITACHI LTD·Filed 1991·Granted Feb 7, 1995·13 cites·43 claims
- 3962US9590432B2Battery control device comprising a plurality of cell controllers and being capable of determining whether a cell controller is operating abnormallyKATO SHINYA·Filed 2012·Granted Mar 7, 2017·2 cites·6 claims
- 4061US9419447B2Battery control device and electricity storage deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Aug 16, 2016·1 cites·4 claims
- 4161US8487590B2Cell controller having a unit cell voltage detecting sectionKUDO AKIHIKO·Filed 2008·Granted Jul 16, 2013·5 cites·12 claims
- 4261US6462580B2Gate circuit and semiconductor circuit to process low amplitude signals, memory, processor and information processing system manufactured by use of themHITACHI LTD·Filed 2000·Granted Oct 8, 2002·7 cites·24 claims
- 4361US5657264ASemiconductor memoryHITACHI LTD·Filed 1993·Granted Aug 12, 1997·18 cites·1 claims
- 4461US5285414ASemiconductor memory having transistors which drive data lines in accordance with values of write data and column select signalHITACHI LTD·Filed 1991·Granted Feb 8, 1994·18 cites·13 claims
- 4560US11380502B2Electromagnetic switch control deviceHITACHI ASTEMO LTD·Filed 2019·Granted Jul 5, 2022·0 cites·8 claims
- 4659US6467004B1Pipelined semiconductor devices suitable for ultra large scale integrationHITACHI LTD·Filed 2000·Granted Oct 15, 2002·5 cites·12 claims
- 4758US5680066ASignal transition detector circuitHITACHI LTD·Filed 1994·Granted Oct 21, 1997·15 cites·51 claims
- 4856US5619151ASemiconductor deviceHITACHI LTD·Filed 1995·Granted Apr 8, 1997·14 cites·37 claims
- 4955US12160126B2In-vehicle battery systemHITACHI ASTEMO LTD·Filed 2020·Granted Dec 3, 2024·0 cites·6 claims
- 5054US9568557B2Battery monitoring device and battery system monitoring deviceKUDO AKIHIKO·Filed 2012·Granted Feb 14, 2017·1 cites·8 claims
Showing the top 50 of 74 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →