Inventor
KUROKAWA YOSHIFUMI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “KUROKAWA YOSHIFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NSK LTD
27 patentsUS10000227B2Jun 19, 2018
Electric power steering device and method for assembling the same
NSK LTD7 citations83
US7559266B2Jul 14, 2009
Telescopic shaft
NSK LTD16 citations83
US11345387B2May 31, 2022
Electrically adjustable steering
NSK LTD8 citations79
US11623677B2Apr 11, 2023
Electric steering device
NSK LTD3 citations72
US10717459B2Jul 21, 2020
Telescopic rotation transmission shaft and method for producing same
NSK LTD2 citations72
US10330141B2Jun 25, 2019
Extensible rotation transmission shaft
NSK LTD3 citations72
US9951806B2Apr 24, 2018
Telescopic shaft
NSK LTD2 citations72
US9915291B2Mar 13, 2018
Torque transmission shaft having universal joint yoke and method of manufacturing the same
NSK LTD2 citations72
US9566998B2Feb 14, 2017
Inner shaft for extendable and contractible shaft and manufacturing method thereof
NSK LTD4 citations72
US9422986B2Aug 23, 2016
Telescopic shaft
NSK LTD3 citations72
US11390313B2Jul 19, 2022
Electrically adjustable steering column
NSK LTD3 citations69
US11370473B2Jun 28, 2022
Telescopic structure and steering column
NSK LTD2 citations69
US11318980B2May 3, 2022
Steering section for steer-by-wire system
NSK LTD2 citations68
US11338839B2May 24, 2022
Electrically adjustable steering
NSK LTD4 citations67
US12319338B2Jun 3, 2025
Steering device
NSK LTD0 citations62
US11891114B2Feb 6, 2024
Steering device
NSK LTD0 citations62
US10597065B2Mar 24, 2020
Vertical position adjustment device for steering wheel
NSK LTD1 citations62
US10288125B2May 14, 2019
Torque transmission unit
NSK LTD1 citations62
US11518429B2Dec 6, 2022
Torque transmission joint and electric power steering device
NSK LTD0 citations52
US10119575B2Nov 6, 2018
Yoke for cross shaft universal joint
NSK LTD1 citations52
US12528534B2Jan 20, 2026
Steering device
NSK LTD0 citations51
US11136058B2Oct 5, 2021
Outer column and steering apparatus
NSK LTD0 citations51
US10940881B2Mar 9, 2021
Steering device
NSK LTD0 citations51
US10597064B2Mar 24, 2020
Position adjustment device for steering wheel
NSK LTD0 citations41
US10184525B2Jan 22, 2019
Method of manufacturing cross shaft universal joint
NSK LTD0 citations41
US10156267B2Dec 18, 2018
Yoke for cross shaft universal joint and method for manufacturing the same
NSK LTD0 citations41
US10099718B2Oct 16, 2018
Electric power steering device and method for assembling the same
NSK LTD0 citations41