Inventor
MARUYAMA TATSUYOSHI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “MARUYAMA TATSUYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD
9 patentsUS9694847B2Jul 4, 2017
Torque detection structure for power steering device, and power steering device using same
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD8 citations83
US9212892B2Dec 15, 2015
Steering angle sensor
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD8 citations82
US9004221B2Apr 14, 2015
Torque sensor and power steering system using the torque sensor
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD13 citations81
US9448129B2Sep 20, 2016
Torque sensor unit
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD4 citations73
US9505431B2Nov 29, 2016
Rotation detection device and power steering device
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD6 citations72
US9302700B2Apr 5, 2016
Torque sensor and power steering system using the torque sensor
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD6 citations72
US9314835B2Apr 19, 2016
Power steering apparatus and method of manufacturing power steering apparatus
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD7 citations71
US9086269B2Jul 21, 2015
Steering angle sensor and electric power steering device employing the same
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD5 citations71
US9919729B2Mar 20, 2018
Power steering system
HITACHI AUTOMOTIVE SYSTEMS STEERING LTD0 citations40
UNISIA JECS CORP
6 patentsUS6041883AMar 28, 2000
Flow controlling apparatus for power steering systems
UNISIA JECS CORP30 citations92
US5950757ASep 14, 1999
Power steering devices
UNISIA JECS CORP21 citations92
US5921342AJul 13, 1999
Power assisted steering apparatus for automotive vehicle
UNISIA JECS CORP19 citations92
US6035958AMar 14, 2000
Power assist apparatus for steering system
UNISIA JECS CORP8 citations73
US5975232ANov 2, 1999
Power assisted steering apparatus for automotive vehicle
UNISIA JECS CORP11 citations73
US6105711AAug 22, 2000
Power steering system
UNISIA JECS CORP10 citations72
HITACHI AUTOMOTIVE SYSTEMS LTD
4 patentsUS11807312B2Nov 7, 2023
Power steering device
HITACHI AUTOMOTIVE SYSTEMS LTD2 citations71
US11383758B2Jul 12, 2022
Power steering apparatus
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations52
US10464593B2Nov 5, 2019
Power steering apparatus and method of manufacturing power steering apparatus
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations41
US10814416B2Oct 27, 2020
Method for producing threaded shaft for power steering device, and power steering device
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations39