Inventor
TOKIOKA RYOICHI
JP12 patents
⚠️ This page may combine multiple inventors who share the name “TOKIOKA RYOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JTEKT CORP
8 patentsUS11247713B2Feb 15, 2022
Steering apparatus
JTEKT CORP5 citations71
US8342056B2Jan 1, 2013
Telescopic shaft and vehicle steering apparatus
JTEKT CORP6 citations67
US10569802B2Feb 25, 2020
Vehicle steering system
JTEKT CORP2 citations63
US7434839B2Oct 14, 2008
Collapsible steering apparatus
JTEKT CORP5 citations61
US11472465B2Oct 18, 2022
Steering device
JTEKT CORP0 citations51
US12371092B2Jul 29, 2025
Steering device
JTEKT CORP0 citations50
US12286147B2Apr 29, 2025
Steering device
JTEKT CORP0 citations50
US12233934B2Feb 25, 2025
Steering device
JTEKT CORP0 citations50
TOKIOKA RYOICHI
3 patentsUS9771969B2Sep 26, 2017
Method of manufacturing torque transmission shaft and vehicle steering apparatus
TOKIOKA RYOICHI7 citations81
US8753215B2Jun 17, 2014
Spline telescopic shaft and method for manufacturing the same and vehicle steering apparatus
TOKIOKA RYOICHI10 citations81
US8419555B2Apr 16, 2013
Spline telescopic shaft, method for manufacturing spline telescopic shaft, and vehicle steering apparatus
TOKIOKA RYOICHI14 citations81