Inventor
KIYOSAWA YOSHIHIDE
JP57 patents
⚠️ This page may combine multiple inventors who share the name “KIYOSAWA YOSHIHIDE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HARMONIC DRIVE SYSTEMS
47 patentsUS4974470ADec 4, 1990
Tooth profile of one of circular splines of flat-shaped strain wave gearing
HARMONIC DRIVE SYSTEMS79 citations96
US5984048ANov 16, 1999
Lubricant supplying mechanism for a wave gear drive
HARMONIC DRIVE SYSTEMS70 citations95
US6029768AFeb 29, 2000
Power assist device for steering apparatus
HARMONIC DRIVE SYSTEMS22 citations93
US5458023AOct 17, 1995
Flexing contact type gear drive of non-profile-shifted two-circular-arc composite tooth profile
HARMONIC DRIVE SYSTEMS28 citations93
US5269202ADec 14, 1993
Cup-type harmonic drive having a short, flexible cup member
HARMONIC DRIVE SYSTEMS112 citations93
US6564677B1May 20, 2003
Wave gear drive having a transfer-torque control mechanism
HARMONIC DRIVE SYSTEMS30 citations91
US5307885AMay 3, 1994
Attitude and drilling-direction control device
HARMONIC DRIVE SYSTEMS41 citations90
US5353884AOct 11, 1994
Positioning device for a member and drilling system employing said positioning device
HARMONIC DRIVE SYSTEMS40 citations89
US6082222AJul 4, 2000
Rigid internal gear of a wave gear drive
HARMONIC DRIVE SYSTEMS32 citations88
USD937332SNov 30, 2021
Speed reducer
HARMONIC DRIVE SYSTEMS8 citations84
US7882766B2Feb 8, 2011
Automatic torque-switching apparatus
HARMONIC DRIVE SYSTEMS10 citations84
US7484436B2Feb 3, 2009
Wave gear device
HARMONIC DRIVE SYSTEMS16 citations84
US7249536B2Jul 31, 2007
Wave gear device
HARMONIC DRIVE SYSTEMS12 citations84
US6065362AMay 23, 2000
Sealed-type wave gear device
HARMONIC DRIVE SYSTEMS19 citations84
US5934157AAug 10, 1999
Flexible meshing type gear device having a high wear-resisting rigid internal gear
HARMONIC DRIVE SYSTEMS18 citations84
US9435418B2Sep 6, 2016
Wave generator of strain wave gearing
HARMONIC DRIVE SYSTEMS7 citations83
US7905326B2Mar 15, 2011
Method for lubricating wave reduction gear, and rotating table device
HARMONIC DRIVE SYSTEMS17 citations83
US7637664B2Dec 29, 2009
Composite roll bearing
HARMONIC DRIVE SYSTEMS11 citations81
US5316090AMay 31, 1994
Attitude control device and drilling-direction control device
HARMONIC DRIVE SYSTEMS17 citations80
US6732435B2May 11, 2004
Method of manufacturing a lightweight bearing
HARMONIC DRIVE SYSTEMS7 citations74
US6318210B1Nov 20, 2001
Phase regulating apparatus
HARMONIC DRIVE SYSTEMS10 citations74
US5893814AApr 13, 1999
Rotational power transmission device having planetary gears
HARMONIC DRIVE SYSTEMS10 citations74
USD971978SDec 6, 2022
Speed reducer
HARMONIC DRIVE SYSTEMS3 citations73
US10132398B2Nov 20, 2018
Strain wave gearing and method for manufacturing multi-layer hollow body
HARMONIC DRIVE SYSTEMS6 citations73
US9371900B2Jun 21, 2016
Hollow strain wave gearing
HARMONIC DRIVE SYSTEMS3 citations73
US10253863B2Apr 9, 2019
Dual-type strain wave gearing
HARMONIC DRIVE SYSTEMS3 citations72
US10253862B2Apr 9, 2019
Dual-type strain wave gearing
HARMONIC DRIVE SYSTEMS5 citations72
US9341252B2May 17, 2016
Wave generator and strain wave gearing
HARMONIC DRIVE SYSTEMS5 citations72
US10006534B2Jun 26, 2018
Bearing holder, bearing mechanism, and strain wave gearing device
HARMONIC DRIVE SYSTEMS6 citations71
US9989141B2Jun 5, 2018
Fastening structure for fastening driven member to strain wave gearing device unit, and strain wave gearing device unit
HARMONIC DRIVE SYSTEMS2 citations71
US9797497B2Oct 24, 2017
Strain wave gearing
HARMONIC DRIVE SYSTEMS2 citations71
US9441721B2Sep 13, 2016
Strain wave gearing unit
HARMONIC DRIVE SYSTEMS3 citations71
US9709151B2Jul 18, 2017
Wave generator and strain wave gearing
HARMONIC DRIVE SYSTEMS3 citations70
US10823278B2Nov 3, 2020
Silk hat-type strain wave gear device
HARMONIC DRIVE SYSTEMS6 citations68
US12359710B2Jul 15, 2025
Space rolling bearing and space strain wave gearing device
HARMONIC DRIVE SYSTEMS0 citations63
USD440993SApr 24, 2001
Gear for wave gear drive
HARMONIC DRIVE SYSTEMS2 citations63
USD431255SSep 26, 2000
Gear for wave gear drive
HARMONIC DRIVE SYSTEMS2 citations63
USD1109202SJan 13, 2026
Speed reducer
HARMONIC DRIVE SYSTEMS0 citations62
US11168775B2Nov 9, 2021
Unit-type strain wave gearing
HARMONIC DRIVE SYSTEMS1 citations62
US10295037B2May 21, 2019
Dual-type strain wave gearing
HARMONIC DRIVE SYSTEMS1 citations62
US9382993B2Jul 5, 2016
Hollow-type strain wave gearing unit
HARMONIC DRIVE SYSTEMS2 citations61
US12281699B2Apr 22, 2025
Lubrication method for gear device
HARMONIC DRIVE SYSTEMS0 citations52
US11320034B2May 3, 2022
Strain wave gearing having unit structure
HARMONIC DRIVE SYSTEMS0 citations52
US11002348B2May 11, 2021
Rotary actuator and linear actuator
HARMONIC DRIVE SYSTEMS0 citations52
US11946536B2Apr 2, 2024
Strain wave gearing provided with three-dimensional tooth profile
HARMONIC DRIVE SYSTEMS0 citations51
US11092223B2Aug 17, 2021
Dual-type strain wave gearing
HARMONIC DRIVE SYSTEMS0 citations51
US9377096B2Jun 28, 2016
Wave generator of strain wave gearing
HARMONIC DRIVE SYSTEMS1 citations51
KIYOSAWA YOSHIHIDE
1 patentNISSAN MOTOR
1 patentHARMONIC DRIVE SYSTEM INC
1 patentShowing the top 50 of 57 patents by PatentIndex Score.