Inventor · disambiguated record
Tatsuro Sugiyama
Also filed as: SUGIYAMA TATSURO
52 granted patents·11 pending applications·455 citations·filing 1994–2023
98Inventor score
Top patents by PatentIndex Score
63 records- 0198US7529507B2Constant-velocity joint and image forming deviceNTN TOYO BEARING CO LTD·Filed 2006·Granted May 5, 2009·72 cites·6 claims
- 0296US6120382AConstant velocity jointNTN TOYO BEARING CO LTD·Filed 1996·Granted Sep 19, 2000·68 cites·32 claims
- 0391US8568245B2Fixed type constant velocity universal jointFUJIO TERUAKI·Filed 2010·Granted Oct 29, 2013·8 cites·12 claims
- 0488US6478682B1Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2000·Granted Nov 12, 2002·54 cites·54 claims
- 0587US6267682B1Constant velocity jointNTN TOYO BEARING CO LTD·Filed 2000·Granted Jul 31, 2001·33 cites·4 claims
- 0685US6579188B1Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2002·Granted Jun 17, 2003·14 cites·14 claims
- 0785US6547667B2Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2001·Granted Apr 15, 2003·17 cites·12 claims
- 0883US6475092B1Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2000·Granted Nov 5, 2002·18 cites·17 claims
- 0982US9133886B2Constant velocity universal jointKOHARA MIKA·Filed 2012·Granted Sep 15, 2015·5 cites·20 claims
- 1080US11371564B2Plunging type constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2018·Granted Jun 28, 2022·2 cites·4 claims
- 1180US10539193B2Method for manufacturing outer joint member for constant-velocity universal joint and outer joint memberNTN TOYO BEARING CO LTD·Filed 2015·Granted Jan 21, 2020·2 cites·4 claims
- 1277US10221895B2Method for manufacturing outer joint member for constant-velocity universal joint and outer joint memberNTN TOYO BEARING CO LTD·Filed 2015·Granted Mar 5, 2019·2 cites·5 claims
- 1376US10933462B2Method for forging shaft member of constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2016·Granted Mar 2, 2021·2 cites·13 claims
- 1475US6632143B2Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2001·Granted Oct 14, 2003·8 cites·5 claims
- 1573US7118485B2Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2004·Granted Oct 10, 2006·7 cites·1 claims
- 1672US7232372B2Tripod constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2002·Granted Jun 19, 2007·12 cites·9 claims
- 1772US6736730B2Tripod type constant-velocity jointNTN TOYO BEARING CO LTD·Filed 2002·Granted May 18, 2004·15 cites·12 claims
- 1866US7052400B2Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2004·Granted May 30, 2006·15 cites·11 claims
- 1965US10788078B2Outer joint member of constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2019·Granted Sep 29, 2020·0 cites·8 claims
- 2065US6386983B1Constant velocity joint having eight torque transmitting ballsNTN TOYO BEARING CO LTD·Filed 2000·Granted May 14, 2002·6 cites·4 claims
- 2165US5692960AHomokinetic joint having balls with axial play in cage pockets and interference fits between inner and outer ringsNTN TOYO BEARING CO LTD·Filed 1995·Granted Dec 2, 1997·19 cites·2 claims
- 2264US8808097B2Fixed type constant velocity universal jointFUJIO TERUAKI·Filed 2013·Granted Aug 19, 2014·1 cites·9 claims
- 2363US6726570B2Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2003·Granted Apr 27, 2004·12 cites·1 claims
- 2463US6299543B1Plunging type constant velocity jointNTN TOYO BEARING CO LTD·Filed 1997·Granted Oct 9, 2001·17 cites·9 claims
- 2561US7354347B2Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2007·Granted Apr 8, 2008·4 cites·10 claims
- 2658US12038050B2Tripod-type constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2019·Granted Jul 16, 2024·1 cites·6 claims
- 2758US5526247AVehicular lamp having improved uniformity of light emissionKOITO MFG CO LTD·Filed 1994·Granted Jun 11, 1996·18 cites·14 claims
- 2856US9605715B2Method of manufacturing outer joint member of constant velocity universal joint, and outer joint memberOSUGI MASAFUMI·Filed 2014·Granted Mar 28, 2017·1 cites·6 claims
- 2954US10274019B2Method of manufacturing outer joint member of constant velocity universal joint, outer joint member, shaft member and cup memberNTN TOYO BEARING CO LTD·Filed 2015·Granted Apr 30, 2019·0 cites·12 claims
- 3052US12429095B2Plunging-type constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2023·Granted Sep 30, 2025·0 cites·5 claims
- 3152US7316620B2Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2006·Granted Jan 8, 2008·0 cites·6 claims
- 3250USD809437STripod type constant velocity jointNTN TOYO BEARING CO LTD·Filed 2016·Granted Feb 6, 2018·5 cites·1 claims
- 3350US6719635B2Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2002·Granted Apr 13, 2004·1 cites·4 claims
- 3449US6893351B2Tripod type constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2001·Granted May 17, 2005·2 cites·22 claims
- 3549US6743106B2Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2003·Granted Jun 1, 2004·2 cites·4 claims
- 3649US2009199405A1Tripod type constant velocity universal jointSUGIYAMA TATSURO·Filed 2009·Application pending·0 cites
- 3749US2011212789A1Fixed constant velocity universal jointOOBA HIROKAZU·Filed 2009·Application pending·0 cites
- 3847US8348772B2Plunging type constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2008·Granted Jan 8, 2013·0 cites·8 claims
- 3947US6843728B2Tripod type constant-velocity universal jointNTN TOYO BEARING CO LTD·Filed 2002·Granted Jan 18, 2005·3 cites·8 claims
- 4047US2024426348A1Plunging type constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2022·Application pending·0 cites
- 4147US2024426349A1Plunging type constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2022·Application pending·0 cites
- 4244US12460680B2Tripod type constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2021·Granted Nov 4, 2025·0 cites·7 claims
- 4344US2007049380A1Tripod type constant velocity universal jointSUGIYAMA TATSURO·Filed 2006·Application pending·0 cites
- 4444US2024167518A1Tripod type constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2022·Application pending·0 cites
- 4543US10478914B2Method for butt welding, butt welded joint, and outside joint member for constant velocity universal jointNAKAGAWA NAOKI·Filed 2015·Granted Nov 19, 2019·0 cites·12 claims
- 4642US11073179B2Sliding-type constant velocity universal joint and method for manufacturing sameNTN TOYO BEARING CO LTD·Filed 2017·Granted Jul 27, 2021·0 cites·9 claims
- 4742US6733394B2Constant velocity jointNTN TOYO BEARING CO LTD·Filed 2002·Granted May 11, 2004·4 cites·18 claims
- 4841US7160193B2Constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2004·Granted Jan 9, 2007·4 cites·5 claims
- 4940US10352369B2Constant velocity universal joint outer joint member and manufacturing method for sameNTN TOYO BEARING CO LTD·Filed 2015·Granted Jul 16, 2019·0 cites·12 claims
- 5040US2018259002A1Tripod type constant velocity universal jointNTN TOYO BEARING CO LTD·Filed 2016·Application pending·0 cites
Showing the top 50 of 63 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →