Inventor · disambiguated record
Isao Hirai
Also filed as: HIRAI ISAO
23 granted patents·2 pending applications·163 citations·filing 2004–2016
95Inventor score
Top patents by PatentIndex Score
25 records- 0196US10207572B2Two-motor vehicle drive deviceNTN TOYO BEARING CO LTD·Filed 2016·Granted Feb 19, 2019·16 cites·4 claims
- 0296US9168818B2Electric vehicleNTN TOYO BEARING CO LTD·Filed 2013·Granted Oct 27, 2015·31 cites·16 claims
- 0394US11155161B2Motor drive device for automobile and equipped with speed reducerNTN TOYO BEARING CO LTD·Filed 2016·Granted Oct 26, 2021·13 cites·3 claims
- 0491US8100775B2Driving wheel bearing apparatusHIRAI ISAO·Filed 2010·Granted Jan 24, 2012·15 cites·11 claims
- 0585US7942584B2Wheel bearing apparatusNTN TOYO BEARING CO LTD·Filed 2006·Granted May 17, 2011·12 cites·8 claims
- 0685US7891879B2Hub wheel of a wheel bearing apparatus and a manufacturing method thereofNTN TOYO BEARING CO LTD·Filed 2009·Granted Feb 22, 2011·9 cites·10 claims
- 0783US8302309B2Process for producing bearing device for wheelHIRAI ISAO·Filed 2006·Granted Nov 6, 2012·9 cites·3 claims
- 0883US7824106B2Bearing device for wheelNTN TOYO BEARING CO LTD·Filed 2005·Granted Nov 2, 2010·8 cites·4 claims
- 0982US9534635B2Wheel bearing apparatusNORIMATSU TAKAYUKI·Filed 2011·Granted Jan 3, 2017·5 cites·4 claims
- 1079US8215846B2Wheel support bearing assemblyHIRAI ISAO·Filed 2009·Granted Jul 10, 2012·6 cites·7 claims
- 1178US7635226B2Bearing apparatus for a wheel of vehicleNTN TOYO BEARING CO LTD·Filed 2008·Granted Dec 22, 2009·6 cites·5 claims
- 1276US7776453B2Machine element and method for manufacturing thereofNTN TOYO BEARING CO LTD·Filed 2005·Granted Aug 17, 2010·2 cites·7 claims
- 1375US7950858B2Bearing apparatus for a wheel of vehicleNTN TOYO BEARING CO LTD·Filed 2008·Granted May 31, 2011·5 cites·7 claims
- 1472US8240922B2Bearing device for wheelHIRAI ISAO·Filed 2006·Granted Aug 14, 2012·2 cites·13 claims
- 1572US7942585B2Wheel bearing apparatus for a vehicleNTN TOYO BEARING CO LTD·Filed 2009·Granted May 17, 2011·4 cites·8 claims
- 1671US7618196B2Wheel bearing apparatusNTN TOYO BEARING CO LTD·Filed 2008·Granted Nov 17, 2009·4 cites·5 claims
- 1770US8393974B2Driving wheel bearing apparatusHIRAI ISAO·Filed 2011·Granted Mar 12, 2013·2 cites·5 claims
- 1869US8714829B2Wheel bearing assemblyHIRAI ISAO·Filed 2009·Granted May 6, 2014·4 cites·10 claims
- 1967US9797453B2Wheel bearing apparatusNORIMATSU TAKAYUKI·Filed 2006·Granted Oct 24, 2017·3 cites·7 claims
- 2059US7942750B2Constant velocity jointNTN TOYO BEARING CO LTD·Filed 2006·Granted May 17, 2011·1 cites·5 claims
- 2150US7665900B2Vehicle wheel bearing apparatusNTN TOYO BEARING CO LTD·Filed 2008·Granted Feb 23, 2010·0 cites·5 claims
- 2245US7452136B2Bearing apparatus for a wheel of vehicleNTN TOYO BEARING CO LTD·Filed 2004·Granted Nov 18, 2008·6 cites·14 claims
- 2344US2010239202A1Double-row angular bearing, bearing device for wheel, method of producing outer race, and method of producing inner raceKURODA MASAYUKI·Filed 2008·Application pending·0 cites
- 2440US8021054B2Wheel bearing apparatus for a vehicleNTN TOYO BEARING CO LTD·Filed 2010·Granted Sep 20, 2011·0 cites·7 claims
- 2538US2018339583A1Electric vehicleNTN TOYO BEARING CO LTD·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →