Inventor
SUGIYAMA TATSURO
JP52 patents
⚠️ This page may combine multiple inventors who share the name “SUGIYAMA TATSURO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NTN TOYO BEARING CO LTD
44 patentsUS7529507B2May 5, 2009
Constant-velocity joint and image forming device
NTN TOYO BEARING CO LTD72 citations98
US6478682B1Nov 12, 2002
Constant velocity universal joint
NTN TOYO BEARING CO LTD54 citations96
US6120382ASep 19, 2000
Constant velocity joint
NTN TOYO BEARING CO LTD68 citations95
US7052400B2May 30, 2006
Constant velocity universal joint
NTN TOYO BEARING CO LTD15 citations92
US6579188B1Jun 17, 2003
Constant velocity universal joint
NTN TOYO BEARING CO LTD14 citations92
US6547667B2Apr 15, 2003
Constant velocity universal joint
NTN TOYO BEARING CO LTD17 citations92
US6267682B1Jul 31, 2001
Constant velocity joint
NTN TOYO BEARING CO LTD33 citations92
US6475092B1Nov 5, 2002
Constant velocity universal joint
NTN TOYO BEARING CO LTD18 citations84
US5692960ADec 2, 1997
Homokinetic joint having balls with axial play in cage pockets and interference fits between inner and outer rings
NTN TOYO BEARING CO LTD19 citations84
US6299543B1Oct 9, 2001
Plunging type constant velocity joint
NTN TOYO BEARING CO LTD17 citations83
US7232372B2Jun 19, 2007
Tripod constant velocity universal joint
NTN TOYO BEARING CO LTD12 citations82
US6726570B2Apr 27, 2004
Constant velocity universal joint
NTN TOYO BEARING CO LTD12 citations82
US6736730B2May 18, 2004
Tripod type constant-velocity joint
NTN TOYO BEARING CO LTD15 citations80
US7354347B2Apr 8, 2008
Constant velocity universal joint
NTN TOYO BEARING CO LTD4 citations74
US7118485B2Oct 10, 2006
Constant velocity universal joint
NTN TOYO BEARING CO LTD7 citations74
US6632143B2Oct 14, 2003
Constant velocity universal joint
NTN TOYO BEARING CO LTD8 citations74
US11371564B2Jun 28, 2022
Plunging type constant velocity universal joint
NTN TOYO BEARING CO LTD2 citations73
USD809437SFeb 6, 2018
Tripod type constant velocity joint
NTN TOYO BEARING CO LTD5 citations73
US6386983B1May 14, 2002
Constant velocity joint having eight torque transmitting balls
NTN TOYO BEARING CO LTD6 citations73
US10221895B2Mar 5, 2019
Method for manufacturing outer joint member for constant-velocity universal joint and outer joint member
NTN TOYO BEARING CO LTD2 citations71
US10539193B2Jan 21, 2020
Method for manufacturing outer joint member for constant-velocity universal joint and outer joint member
NTN TOYO BEARING CO LTD2 citations70
US10933462B2Mar 2, 2021
Method for forging shaft member of constant velocity universal joint
NTN TOYO BEARING CO LTD2 citations66
US6733394B2May 11, 2004
Constant velocity joint
NTN TOYO BEARING CO LTD4 citations63
US7160193B2Jan 9, 2007
Constant velocity universal joint
NTN TOYO BEARING CO LTD4 citations62
US6893351B2May 17, 2005
Tripod type constant velocity universal joint
NTN TOYO BEARING CO LTD2 citations62
US6743106B2Jun 1, 2004
Constant velocity universal joint
NTN TOYO BEARING CO LTD2 citations62
US6719635B2Apr 13, 2004
Constant velocity universal joint
NTN TOYO BEARING CO LTD1 citations62
US6843728B2Jan 18, 2005
Tripod type constant-velocity universal joint
NTN TOYO BEARING CO LTD3 citations56
US12038050B2Jul 16, 2024
Tripod-type constant velocity universal joint
NTN TOYO BEARING CO LTD1 citations55
US12429095B2Sep 30, 2025
Plunging-type constant velocity universal joint
NTN TOYO BEARING CO LTD0 citations52
USD814365SApr 3, 2018
Tripod kit for tripod type constant velocity joint
NTN TOYO BEARING CO LTD0 citations52
US7316620B2Jan 8, 2008
Constant velocity universal joint
NTN TOYO BEARING CO LTD0 citations52
US12460680B2Nov 4, 2025
Tripod type constant velocity universal joint
NTN TOYO BEARING CO LTD0 citations51
US10788078B2Sep 29, 2020
Outer joint member of constant velocity universal joint
NTN TOYO BEARING CO LTD0 citations51
US10274019B2Apr 30, 2019
Method of manufacturing outer joint member of constant velocity universal joint, outer joint member, shaft member and cup member
NTN TOYO BEARING CO LTD0 citations51
USD814366SApr 3, 2018
Tripod kit for tripod type constant velocity joint
NTN TOYO BEARING CO LTD1 citations51
US11073179B2Jul 27, 2021
Sliding-type constant velocity universal joint and method for manufacturing same
NTN TOYO BEARING CO LTD0 citations45
US10563700B2Feb 18, 2020
Tripod type constant velocity universal joint
NTN TOYO BEARING CO LTD0 citations42
US10302143B2May 28, 2019
Tripod type constant velocity universal joint
NTN TOYO BEARING CO LTD0 citations42
US10280984B2May 7, 2019
Constant velocity universal joint outer joint member and manufacturing method for same
NTN TOYO BEARING CO LTD0 citations41
US10107338B2Oct 23, 2018
Method for manufacturing outer joint member for constant velocity universal joint and outer joint member
NTN TOYO BEARING CO LTD0 citations40
US8348772B2Jan 8, 2013
Plunging type constant velocity universal joint
NTN TOYO BEARING CO LTD0 citations39
US10352369B2Jul 16, 2019
Constant velocity universal joint outer joint member and manufacturing method for same
NTN TOYO BEARING CO LTD0 citations38
US10761065B2Sep 1, 2020
Device for inspecting junction-type outer joint member of constant velocity universal joint
NTN TOYO BEARING CO LTD0 citations37
FUJIO TERUAKI
2 patentsKOITO MFG CO LTD
1 patentKOHARA MIKA
1 patentOSUGI MASAFUMI
1 patentNAKAGAWA NAOKI
1 patentShowing the top 50 of 52 patents by PatentIndex Score.