Inventor · disambiguated record
Keiji Hamada
Also filed as: HAMADA KEIJI
26 granted patents·3 pending applications·74 citations·filing 2011–2025
94Inventor score
Top patents by PatentIndex Score
29 records- 0194US10668944B2Electric drive device and electric power steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Jun 2, 2020·9 cites·12 claims
- 0292US11052841B2Electric drive device and electric power steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Jul 6, 2021·8 cites·12 claims
- 0392US10554100B2Electric drive apparatus, and electric power steering apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Feb 4, 2020·5 cites·18 claims
- 0490US11040738B2Electric drive device and electric power steering deviceHITACHI ASTEMO LTD·Filed 2017·Granted Jun 22, 2021·4 cites·10 claims
- 0588US10826355B2Electric drive device and electric power steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Nov 3, 2020·6 cites·12 claims
- 0685US10770955B2Connection terminal assembly and electromotive drive device using sameHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Sep 8, 2020·3 cites·7 claims
- 0784US9979125B2Fitting structure of connectorYAZAKI CORP·Filed 2016·Granted May 22, 2018·7 cites·12 claims
- 0879US11870326B2Electric drive apparatus, and electric power steering apparatusHITACHI ASTEMO LTD·Filed 2022·Granted Jan 9, 2024·0 cites·8 claims
- 0978US8702454B2Contact and connector with contactsYAZAKI CORP·Filed 2013·Granted Apr 22, 2014·10 cites·3 claims
- 1077US10965181B2Electric drive device and electric power steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Mar 30, 2021·3 cites·10 claims
- 1175US11606000B2Electric drive device and electric power steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Mar 14, 2023·2 cites·21 claims
- 1274US2025220826A1Electronic control device and method for manufacturing the sameHITACHI ASTEMO LTD·Filed 2025·Application pending·0 cites
- 1373US10797566B2Electric drive device and electric power steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Oct 6, 2020·1 cites·14 claims
- 1472US9755352B2Waterproofing structure for connectorYAZAKI CORP·Filed 2016·Granted Sep 5, 2017·3 cites·7 claims
- 1571US11362569B2Electric drive apparatus, and electric power steering apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted Jun 14, 2022·0 cites·20 claims
- 1669US9136623B2ConnectorHAMADA KEIJI·Filed 2011·Granted Sep 15, 2015·9 cites·5 claims
- 1768US12464656B2Electronic control device and method for manufacturing the sameHITACHI ASTEMO LTD·Filed 2021·Granted Nov 4, 2025·0 cites·8 claims
- 1865US9831595B2Connector waterproofing structureYAZAKI CORP·Filed 2016·Granted Nov 28, 2017·2 cites·17 claims
- 1960USRE50061EElectric drive device and electric power steering deviceHITACHI ASTEMO LTD·Filed 2017·Granted Jul 30, 2024·0 cites·11 claims
- 2053US9401553B2Connector deviceYAZAKI CORP·Filed 2015·Granted Jul 26, 2016·1 cites·4 claims
- 2150US2023067913A1Electric drive deviceHITACHI ASTEMO LTD·Filed 2021·Application pending·0 cites
- 2246US9350119B2Wrong insertion preventive structure of connectorYAZAKI CORP·Filed 2013·Granted May 24, 2016·1 cites·9 claims
- 2345US9647357B2Peg press-fitting structure for connectorYAZAKI CORP·Filed 2016·Granted May 9, 2017·0 cites·4 claims
- 2444US9590328B2Peg press-fitting structure for connectorYAZAKI CORP·Filed 2015·Granted Mar 7, 2017·0 cites·3 claims
- 2541US11577774B2Electric drive device and electric power steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Feb 14, 2023·0 cites·8 claims
- 2640US9590322B2ConnectorYAZAKI CORP·Filed 2014·Granted Mar 7, 2017·0 cites·7 claims
- 2738US11407443B2Electric drive device and electric power steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Aug 9, 2022·0 cites·8 claims
- 2838US10283902B2Waterproof structure for connectorYAZAKI CORP·Filed 2018·Granted May 7, 2019·0 cites·7 claims
- 2937US2019193775A1Electromotive Drive Device and Electrically-Powered Steering DeviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →