Inventor · disambiguated record
Ayumu Hatanaka
Also filed as: HATANAKA AYUMU
19 granted patents·72 citations·filing 2008–2020
92Inventor score
Files withHITACHI AUTOMOTIVE SYSTEMS LTD10HATANAKA AYUMU3HITACHI LTD2HITACHI ASTEMO LTD1HITACHI HIGH TECH CORP1
Top patents by PatentIndex Score
19 records- 0194US9926874B2Drive device for fuel injection device, and fuel injection systemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Mar 27, 2018·10 cites·22 claims
- 0292US9714626B2Drive device for fuel injection deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Jul 25, 2017·9 cites·19 claims
- 0391US8514541B2Injector drive circuitHATANAKA AYUMU·Filed 2011·Granted Aug 20, 2013·14 cites·6 claims
- 0487US11300070B2Electromagnetic valve control unit and internal combustion engine control device using sameHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted Apr 12, 2022·2 cites·5 claims
- 0586US8928363B2Semiconductor drive circuit and power conversion apparatus using sameHATANAKA AYUMU·Filed 2011·Granted Jan 6, 2015·10 cites·8 claims
- 0683US10673349B2Power conversion device with efficient cooling structureHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Jun 2, 2020·4 cites·5 claims
- 0780US10240551B2Electromagnetic valve control unit and internal combustion engine control device using sameHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Mar 26, 2019·3 cites·14 claims
- 0880US7777194B2Charged particle beam apparatusHITACHI HIGH TECH CORP·Filed 2008·Granted Aug 17, 2010·5 cites·13 claims
- 0979US8599530B2Electromagnetic valve driving circuitOnda kohei·Filed 2011·Granted Dec 3, 2013·7 cites·6 claims
- 1075US8649151B2Injector drive circuitYAMADA SHIGEKI·Filed 2012·Granted Feb 11, 2014·4 cites·1 claims
- 1165US10961935B2Drive device for fuel injection device, and fuel injection systemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Mar 30, 2021·0 cites·6 claims
- 1262US10115700B2Power module, electrical power conversion device, and driving device for vehicleHITACHI LTD·Filed 2015·Granted Oct 30, 2018·1 cites·10 claims
- 1362US10002699B2Electromagnetic coil driving control deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Jun 19, 2018·2 cites·6 claims
- 1457US9694694B2In-vehicle step-down switching power supply, in-vehicle electronic control device, and idle stop systemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Jul 4, 2017·1 cites·7 claims
- 1554US10488515B2Acoustic emission wave detection system for a high voltage apparatusHITACHI LTD·Filed 2014·Granted Nov 26, 2019·0 cites·15 claims
- 1653US11348735B2High voltage filter and power conversion deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted May 31, 2022·0 cites·7 claims
- 1746US10903754B2Power converterHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Jan 26, 2021·0 cites·6 claims
- 1843US9287771B2Series regulator on electronic control unit for automotive vehicleHATANAKA AYUMU·Filed 2012·Granted Mar 15, 2016·0 cites·9 claims
- 1939US11888408B2Power conversion device and manufacturing method of power conversion deviceHITACHI ASTEMO LTD·Filed 2020·Granted Jan 30, 2024·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →