Inventor
HAMADA KEIJI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “HAMADA KEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI AUTOMOTIVE SYSTEMS LTD
11 patentsUS10668944B2Jun 2, 2020
Electric drive device and electric power steering device
HITACHI AUTOMOTIVE SYSTEMS LTD9 citations83
US10554100B2Feb 4, 2020
Electric drive apparatus, and electric power steering apparatus
HITACHI AUTOMOTIVE SYSTEMS LTD5 citations83
US11052841B2Jul 6, 2021
Electric drive device and electric power steering device
HITACHI AUTOMOTIVE SYSTEMS LTD8 citations82
US11606000B2Mar 14, 2023
Electric drive device and electric power steering device
HITACHI AUTOMOTIVE SYSTEMS LTD2 citations72
US10965181B2Mar 30, 2021
Electric drive device and electric power steering device
HITACHI AUTOMOTIVE SYSTEMS LTD3 citations72
US10826355B2Nov 3, 2020
Electric drive device and electric power steering device
HITACHI AUTOMOTIVE SYSTEMS LTD6 citations72
US10770955B2Sep 8, 2020
Connection terminal assembly and electromotive drive device using same
HITACHI AUTOMOTIVE SYSTEMS LTD3 citations72
US11362569B2Jun 14, 2022
Electric drive apparatus, and electric power steering apparatus
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations62
US10797566B2Oct 6, 2020
Electric drive device and electric power steering device
HITACHI AUTOMOTIVE SYSTEMS LTD1 citations62
US11577774B2Feb 14, 2023
Electric drive device and electric power steering device
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations51
US11407443B2Aug 9, 2022
Electric drive device and electric power steering device
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations51
YAZAKI CORP
10 patentsUS9979125B2May 22, 2018
Fitting structure of connector
YAZAKI CORP7 citations83
US8702454B2Apr 22, 2014
Contact and connector with contacts
YAZAKI CORP10 citations83
US9755352B2Sep 5, 2017
Waterproofing structure for connector
YAZAKI CORP3 citations73
US9831595B2Nov 28, 2017
Connector waterproofing structure
YAZAKI CORP2 citations72
US9401553B2Jul 26, 2016
Connector device
YAZAKI CORP1 citations51
US9647357B2May 9, 2017
Peg press-fitting structure for connector
YAZAKI CORP0 citations50
US9590328B2Mar 7, 2017
Peg press-fitting structure for connector
YAZAKI CORP0 citations50
US9350119B2May 24, 2016
Wrong insertion preventive structure of connector
YAZAKI CORP1 citations50
US10283902B2May 7, 2019
Waterproof structure for connector
YAZAKI CORP0 citations41
US9590322B2Mar 7, 2017
Connector
YAZAKI CORP0 citations41
HITACHI ASTEMO LTD
5 patentsUS11040738B2Jun 22, 2021
Electric drive device and electric power steering device
HITACHI ASTEMO LTD4 citations72
USRE50061EJul 30, 2024
Electric drive device and electric power steering device
HITACHI ASTEMO LTD0 citations62
US11870326B2Jan 9, 2024
Electric drive apparatus, and electric power steering apparatus
HITACHI ASTEMO LTD0 citations62
US12583511B2Mar 24, 2026
Motor drive device
HITACHI ASTEMO LTD0 citations49
US12464656B2Nov 4, 2025
Electronic control device and method for manufacturing the same
HITACHI ASTEMO LTD0 citations49