Inventor · disambiguated record
Chikara Ohki
Also filed as: OHKI CHIKARA
39 granted patents·21 pending applications·68 citations·filing 2002–2023
96Inventor score
Top patents by PatentIndex Score
60 records- 0192US10344801B2Bearing part and rolling bearingNTN TOYO BEARING CO LTD·Filed 2017·Granted Jul 9, 2019·2 cites·3 claims
- 0291US11137031B2Bearing part, rolling bearing, and method for manufacturing bearing partNTN TOYO BEARING CO LTD·Filed 2018·Granted Oct 5, 2021·3 cites·12 claims
- 0385US7641742B2Rolling bearing and heat treatment method for steelNTN TOYO BEARING CO LTD·Filed 2005·Granted Jan 5, 2010·6 cites·4 claims
- 0481US7438477B2Bearing part, heat treatment method thereof, and rolling bearingNTN TOYO BEARING CO LTD·Filed 2002·Granted Oct 21, 2008·10 cites·8 claims
- 0578US12163555B2Bearing part and rolling bearingNTN TOYO BEARING CO LTD·Filed 2018·Granted Dec 10, 2024·1 cites·14 claims
- 0677US9951816B2Bearing part, rolling bearing, and method for manufacturing bearing partSATO DAISUKE·Filed 2013·Granted Apr 24, 2018·3 cites·13 claims
- 0773US2019003530A1Bearing part and rolling bearingNTN TOYO BEARING CO LTD·Filed 2018·Application pending·0 cites
- 0872US8177928B2Method of restrained-quenching of annular memberOHKI CHIKARA·Filed 2007·Granted May 15, 2012·2 cites·14 claims
- 0972US8128761B2Carbonitriding method, machinery component fabrication method, and machinery componentOHKI CHIKARA·Filed 2007·Granted Mar 6, 2012·2 cites·4 claims
- 1070US8485730B2Rolling bearingMORISHITA HIROSHI·Filed 2009·Granted Jul 16, 2013·6 cites·9 claims
- 1169US9206490B2Bearing part, rolling bearing, and methods of manufacturing themUENO TAKASHI·Filed 2012·Granted Dec 8, 2015·3 cites·33 claims
- 1269US7334943B2Differential support structure, differential's component, method of manufacturing differential support structure, and method of manufacturing differential's componentNTN TOYO BEARING CO LTD·Filed 2004·Granted Feb 26, 2008·8 cites·12 claims
- 1367US2016003300A1Bearing part and rolling bearingOHKI CHIKARA·Filed 2014·Application pending·0 cites
- 1466US9487843B2Method for producing a bearing ringYUKI HIROSHI·Filed 2012·Granted Nov 8, 2016·1 cites·2 claims
- 1565US7690847B2Rolling bearingNTN TOYO BEARING CO LTD·Filed 2004·Granted Apr 6, 2010·6 cites·10 claims
- 1662US10107335B2Bearing component and rolling bearingNTN TOYO BEARING CO LTD·Filed 2014·Granted Oct 23, 2018·0 cites·11 claims
- 1761US9032783B2Bearing part, bearing, and method for inspecting bearing partOHKI CHIKARA·Filed 2011·Granted May 19, 2015·1 cites·11 claims
- 1860US2016153496A1Method for heat-treating a ring-shaped member, method for producing a ring-shaped member, ring-shaped member, bearing ring, rolling bearing, and method for producing a bearing ringNTN TOYO BEARING CO LTD·Filed 2016·Application pending·0 cites
- 1959US7682087B2Transmission component, method of manufacturing the same, and tapered roller bearingNTN TOYO BEARING CO LTD·Filed 2004·Granted Mar 23, 2010·7 cites·6 claims
- 2058US7585114B2Compressor bearing and compressor componentNTN TOYO BEARING CO LTD·Filed 2004·Granted Sep 8, 2009·5 cites·8 claims
- 2157US2024418213A1Rolling component and rolling bearingNTN TOYO BEARING CO LTD·Filed 2022·Application pending·0 cites
- 2256US10156259B2Bearing component and rolling bearingNTN TOYO BEARING CO LTD·Filed 2014·Granted Dec 18, 2018·0 cites·9 claims
- 2356US7270607B2Constant velocity universal joint and method of manufacturing the sameNTN TOYO BEARING CO LTD·Filed 2004·Granted Sep 18, 2007·2 cites·2 claims
- 2455US8425690B2Bearing part, heat treatment method thereof, and rolling bearingOHKI CHIKARA·Filed 2005·Granted Apr 23, 2013·0 cites·5 claims
- 2554US10378076B2Double row tapered roller bearing, bearing ring, and method for producing double row tapered roller bearingNTN TOYO BEARING CO LTD·Filed 2016·Granted Aug 13, 2019·0 cites·8 claims
- 2654US8783961B2Bearing for alternator and bearing for pulleyNTN TOYO BEARING CO LTD·Filed 2012·Granted Jul 22, 2014·0 cites·2 claims
- 2754US8444912B2Heat treatment furnaceOHKI CHIKARA·Filed 2008·Granted May 21, 2013·0 cites·5 claims
- 2853US9062355B2Carbonitriding method, machinery component fabrication method, and machinery componentOHKI CHIKARA·Filed 2007·Granted Jun 23, 2015·0 cites·6 claims
- 2952US10525521B2Method of manufacturing rolling bearing ring and rolling bearing ringNTN TOYO BEARING CO LTD·Filed 2015·Granted Jan 7, 2020·0 cites·14 claims
- 3052US10087989B2Bearing component and rolling bearingNTN TOYO BEARING CO LTD·Filed 2014·Granted Oct 2, 2018·0 cites·10 claims
- 3152US9181599B2Method for heat-treating ring-shaped member and method for producing ring-shaped memberOHKI CHIKARA·Filed 2012·Granted Nov 10, 2015·0 cites·10 claims
- 3252US2025215932A1Mechanical componentNTN TOYO BEARING CO LTD·Filed 2023·Application pending·0 cites
- 3351US2012051682A1Bearing part, heat treatment method thereof, and rolling bearingOHKI CHIKARA·Filed 2011·Application pending·0 cites
- 3450US10094422B2Bearing component and rolling bearingNTN TOYO BEARING CO LTD·Filed 2014·Granted Oct 9, 2018·0 cites·9 claims
- 3550US2025020160A1Rolling component and rolling bearingNTN TOYO BEARING CO LTD·Filed 2022·Application pending·0 cites
- 3649US12169000B2Mechanical component and method for manufacturing mechanical componentNTN TOYO BEARING CO LTD·Filed 2018·Granted Dec 17, 2024·0 cites·22 claims
- 3749US11781596B2Bearing component and method for manufacturing the sameNTN TOYO BEARING CO LTD·Filed 2017·Granted Oct 10, 2023·0 cites·6 claims
- 3849US8337089B2Mechanical component and rolling bearingOHKI CHIKARA·Filed 2008·Granted Dec 25, 2012·0 cites·7 claims
- 3949US8333516B2Bearing for alternator and bearing for pulleyOHKI CHIKARA·Filed 2010·Granted Dec 18, 2012·0 cites·4 claims
- 4049US2014321789A1Machine part, rolling bearing, tapered roller bearing, and method for manufacturing machine partNTN TOYO BEARING CO LTD·Filed 2012·Application pending·0 cites
- 4148US10718377B2Method for producing bearing ring, double row tapered roller bearing, and method for producing double row tapered roller bearingNTN TOYO BEARING CO LTD·Filed 2016·Granted Jul 21, 2020·0 cites·4 claims
- 4248US8453528B2Mechanical component and rolling bearingOHKI CHIKARA·Filed 2011·Granted Jun 4, 2013·0 cites·7 claims
- 4348US2024035515A1Bearing part and rolling bearingNTN TOYO BEARING CO LTD·Filed 2021·Application pending·0 cites
- 4447US10047429B2Gas nitrocarburizing method and method for manufacturing bearing partOHKI CHIKARA·Filed 2012·Granted Aug 14, 2018·0 cites·2 claims
- 4547US2021025452A1Bearing partNTN TOYO BEARING CO LTD·Filed 2019·Application pending·0 cites
- 4646US10730098B2Method of manufacturing rolling bearing ringNTN TOYO BEARING CO LTD·Filed 2016·Granted Aug 4, 2020·0 cites·6 claims
- 4746US8747572B2Carbonitriding method, machinery component fabrication method, and machinery componentOHKI CHIKARA·Filed 2006·Granted Jun 10, 2014·0 cites·4 claims
- 4846US2007269336A1Ball-and-Roller BearingOHKI CHIKARA·Filed 2004·Application pending·0 cites
- 4946US2022411891A1Rolling bearingNTN TOYO BEARING CO LTD·Filed 2020·Application pending·0 cites
- 5045US8002907B2Bearing's component, heat treatment method thereof, heat treatment apparatus, and rolling bearingNTN TOYO BEARING CO LTD·Filed 2004·Granted Aug 23, 2011·0 cites·8 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →