Inventor · disambiguated record
Yuji Kurematsu
Also filed as: KUREMATSU YUJI
74 granted patents·8 pending applications·192 citations·filing 2006–2024
98Inventor score
Top patents by PatentIndex Score
82 records- 0196US11248682B2Tensioner leverTSUBAKIMOTO CHAIN CO·Filed 2020·Granted Feb 15, 2022·5 cites·6 claims
- 0295US8900079B2Transmission guideTSUBAKIMOTO CHAIN CO·Filed 2012·Granted Dec 2, 2014·22 cites·16 claims
- 0393US11767891B2Cam clutch unitTSUBAKIMOTO CHAIN CO·Filed 2023·Granted Sep 26, 2023·2 cites·7 claims
- 0493US8747263B2Transmission guideKONNO MASAHIKO·Filed 2012·Granted Jun 10, 2014·18 cites·3 claims
- 0591US10260603B2Chain tensionerTSUBAKIMOTO CHAIN CO·Filed 2016·Granted Apr 16, 2019·5 cites·5 claims
- 0691US8282520B2Chain tensionerKUREMATSU YUJI·Filed 2010·Granted Oct 9, 2012·13 cites·9 claims
- 0790US9523413B2Chain tensionerTSUBAKIMOTO CHAIN CO·Filed 2014·Granted Dec 20, 2016·10 cites·14 claims
- 0890US8888628B2Transmission guideKONNO MASAHIKO·Filed 2012·Granted Nov 18, 2014·11 cites·12 claims
- 0989US11125304B2TensionerTSUBAKIMOTO CHAIN CO·Filed 2019·Granted Sep 21, 2021·4 cites·5 claims
- 1088US10024401B2Chain tensionerTSUBAKIMOTO CHAIN CO·Filed 2015·Granted Jul 17, 2018·4 cites·5 claims
- 1188US8740737B2Transmission guideKONNO MASAHIKO·Filed 2012·Granted Jun 3, 2014·9 cites·5 claims
- 1287US11448292B2TensionerTSUBAKIMOTO CHAIN CO·Filed 2020·Granted Sep 20, 2022·2 cites·5 claims
- 1387US10107367B2Chain tensioner and relief valve unitTSUBAKIMOTO CHAIN CO·Filed 2016·Granted Oct 23, 2018·5 cites·9 claims
- 1486US8454462B2Chain guide mechanismKONNO MASAHIKO·Filed 2010·Granted Jun 4, 2013·10 cites·3 claims
- 1582US11028908B2Tensioner and relief valve unitTSUBAKIMOTO CHAIN CO·Filed 2018·Granted Jun 8, 2021·2 cites·4 claims
- 1682US10982737B2TensionerTSUBAKIMOTO CHAIN CO·Filed 2019·Granted Apr 20, 2021·2 cites·8 claims
- 1781US11143100B2TensionerTSUBAKIMOTO CHAIN CO·Filed 2018·Granted Oct 12, 2021·2 cites·11 claims
- 1880US10107369B2Chain tensionerTSUBAKIMOTO CHAIN CO·Filed 2016·Granted Oct 23, 2018·2 cites·5 claims
- 1979US10871208B2TensionerTSUBAKIMOTO CHAIN CO·Filed 2018·Granted Dec 22, 2020·2 cites·4 claims
- 2079US9702441B2Chain tensionerTSUBAKIMOTO CHAIN CO·Filed 2015·Granted Jul 11, 2017·2 cites·5 claims
- 2178US9915323B2TensionerTSUBAKIMOTO CHAIN CO·Filed 2015·Granted Mar 13, 2018·2 cites·4 claims
- 2277US11982324B2Cam clutch unitTSUBAKIMOTO CHAIN CO·Filed 2023·Granted May 14, 2024·0 cites·5 claims
- 2377US9689474B2Chain tensionerTSUBAKIMOTO CHAIN CO·Filed 2015·Granted Jun 27, 2017·2 cites·3 claims
- 2476US9746055B2Chain tensionerTSUBAKIMOTO CHAIN CO·Filed 2015·Granted Aug 29, 2017·2 cites·4 claims
- 2575US8419575B2Ball-type tensionerYOSHIDA OSAMU·Filed 2011·Granted Apr 16, 2013·4 cites·4 claims
- 2674US9541174B2Chain tensionerTSUBAKIMOTO CHAIN CO·Filed 2015·Granted Jan 10, 2017·2 cites·6 claims
- 2773US11499620B2Sprocket and drive mechanismTSUBAKIMOTO CHAIN CO·Filed 2019·Granted Nov 15, 2022·1 cites·4 claims
- 2873US9651121B2Chain guide mechanismTSUBAKIMOTO CHAIN CO·Filed 2014·Granted May 16, 2017·3 cites·3 claims
- 2973US9534671B2Chain guideTSUBAKIMOTO CHAIN CO·Filed 2014·Granted Jan 3, 2017·3 cites·8 claims
- 3073US9303735B2Chain tensionerTSUBAKIMOTO CHAIN CO·Filed 2014·Granted Apr 5, 2016·3 cites·9 claims
- 3172US10221924B2Chain tensionerTSUBAKIMOTO CHAIN CO·Filed 2016·Granted Mar 5, 2019·1 cites·5 claims
- 3271US12398765B2Positive clutchTSUBAKIMOTO CHAIN CO·Filed 2024·Granted Aug 26, 2025·0 cites·6 claims
- 3371US11913503B2Cam clutchTSUBAKIMOTO CHAIN CO·Filed 2023·Granted Feb 27, 2024·0 cites·5 claims
- 3471US8821326B2Ratchet-type tensionerYOSHIDA OSAMU·Filed 2012·Granted Sep 2, 2014·3 cites·10 claims
- 3571US8118699B2Sprocket for chainSAKURA SHUNJI·Filed 2009·Granted Feb 21, 2012·5 cites·8 claims
- 3670US12305722B2Cam clutchTSUBAKIMOTO CHAIN CO·Filed 2024·Granted May 20, 2025·0 cites·6 claims
- 3770US11009114B2Sprocket and transmission mechanismTSUBAKIMOTO CHAIN CO·Filed 2018·Granted May 18, 2021·1 cites·7 claims
- 3870US10670118B2TensionerTSUBAKIMOTO CHAIN CO·Filed 2017·Granted Jun 2, 2020·1 cites·6 claims
- 3969US12104663B2Positive clutchTSUBAKIMOTO CHAIN CO·Filed 2023·Granted Oct 1, 2024·0 cites·9 claims
- 4069US11761496B2Cam clutchTSUBAKIMOTO CHAIN CO·Filed 2023·Granted Sep 19, 2023·0 cites·4 claims
- 4169US8939856B2Hydraulic tensionerKUREMATSU YUJI·Filed 2012·Granted Jan 27, 2015·3 cites·4 claims
- 4269US8926460B2Ratchet-type tensionerKUREMATSU YUJI·Filed 2012·Granted Jan 6, 2015·3 cites·6 claims
- 4369US8740736B2Ring-type tensionerKUREMATSU YUJI·Filed 2012·Granted Jun 3, 2014·3 cites·4 claims
- 4469US8734278B2Rachet-type tensionerISHII AKIRA·Filed 2012·Granted May 27, 2014·3 cites·2 claims
- 4567US9086121B2Chain guideTSUBAKIMOTO CHAIN CO·Filed 2014·Granted Jul 21, 2015·2 cites·6 claims
- 4666US12196276B2Selectable clutchTSUBAKIMOTO CHAIN CO·Filed 2024·Granted Jan 14, 2025·0 cites·9 claims
- 4765US11846329B2Cam clutchTSUBAKIMOTO CHAIN CO·Filed 2023·Granted Dec 19, 2023·0 cites·6 claims
- 4865US11493114B2Chain guideTSUBAKIMOTO CHAIN CO·Filed 2019·Granted Nov 8, 2022·0 cites·8 claims
- 4964US12055189B2Positive clutchTSUBAKIMOTO CHAIN CO·Filed 2023·Granted Aug 6, 2024·0 cites·4 claims
- 5064US11198173B2Rotating member and forming method thereofTSUBAKIMOTO CHAIN CO·Filed 2019·Granted Dec 14, 2021·0 cites·6 claims
Showing the top 50 of 82 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →