Inventor · disambiguated record
Takehito Tamaoka
Also filed as: TAMAOKA TAKEHITO
105 granted patents·50 pending applications·473 citations·filing 2003–2025
99Inventor score
Top patents by PatentIndex Score
155 records- 0196US7005768B2Dynamic bearing device, producing method thereof, and motor using the sameNTN TOYO BEARING CO LTD·Filed 2003·Granted Feb 28, 2006·52 cites·21 claims
- 0295US8324771B2Spindle motor and storage disk drive apparatusYAWATA ATSUSHI·Filed 2010·Granted Dec 4, 2012·20 cites·12 claims
- 0393US8508882B1Spindle motor having magnetic circuit for stator and rotor magnet, and storage disk drive having the sameTAMAOKA TAKEHITO·Filed 2012·Granted Aug 13, 2013·11 cites·26 claims
- 0493US8385017B2Spindle motor including fluid bearing and storage disk drive including the sameNIDEC CORP·Filed 2011·Granted Feb 26, 2013·16 cites·23 claims
- 0592US7556433B2Fluid dynamic bearing device and motor equipped with the sameNTN TOYO BEARING CO LTD·Filed 2006·Granted Jul 7, 2009·17 cites·6 claims
- 0692US7411762B2Fluid dynamic pressure bearing including dynamic pressure generating grooves, and spindle motor and disc drive including the bearingNIDEC CORP·Filed 2005·Granted Aug 12, 2008·14 cites·18 claims
- 0792US7021829B2Fluid-dynamic-pressure bearing, spindle motor furnished with the fluid-dynamic-pressure bearing, method of manufacturing rotor assembly applied in the spindle motor, and recording-disk drive furnished with the spindle motorNIDEC CORP·Filed 2004·Granted Apr 4, 2006·49 cites·33 claims
- 0891US8879204B2Motor and disk drive apparatusNIDEC CORP·Filed 2013·Granted Nov 4, 2014·7 cites·28 claims
- 0991US7830049B2Motor and disk drive using the sameNIDEC CORP·Filed 2008·Granted Nov 9, 2010·23 cites·15 claims
- 1090US10917995B2Cooling deviceNIDEC CORP·Filed 2019·Granted Feb 9, 2021·6 cites·12 claims
- 1190US8379345B2Spindle motor having dynamic pressure fluid bearing for use in a storage disk driveNIDEC CORP·Filed 2011·Granted Feb 19, 2013·14 cites·20 claims
- 1289US8873198B1Motor and disk drive apparatusNIDEC CORP·Filed 2014·Granted Oct 28, 2014·8 cites·32 claims
- 1389US7514831B2Motor having fluid dynamic bearing and disk drive with the-like motorNIDEC CORP·Filed 2006·Granted Apr 7, 2009·9 cites·17 claims
- 1488US11920879B2Heat dissipation device and cooling deviceNIDEC CORP·Filed 2022·Granted Mar 5, 2024·2 cites·12 claims
- 1588US11252837B2Cooling apparatusNIDEC CORP·Filed 2019·Granted Feb 15, 2022·3 cites·11 claims
- 1688US7542232B2Motor unit including spindle motor and recording-disk-driving device including the sameNIDEC CORP·Filed 2006·Granted Jun 2, 2009·9 cites·19 claims
- 1788US7515379B2Spindle motor and recording disk drive having spindle motorNIDEC CORP·Filed 2006·Granted Apr 7, 2009·9 cites·4 claims
- 1885US10072672B2FanNIDEC CORP·Filed 2016·Granted Sep 11, 2018·3 cites·8 claims
- 1985US9523373B2FanNIDEC CORP·Filed 2014·Granted Dec 20, 2016·5 cites·12 claims
- 2085US9366263B2Bearing apparatus, motor, and blower fanNIDEC CORP·Filed 2013·Granted Jun 14, 2016·6 cites·18 claims
- 2185US8675304B2Disk drive spindle motor with hole volume and component density relationshipTAMAOKA TAKEHITO·Filed 2012·Granted Mar 18, 2014·7 cites·23 claims
- 2285US7650697B2Methods of manufacturing fluid-dynamic-pressure bearing and spindle motor incorporating the bearing, and spindle motor and recording-disk drive incorporating the bearingNIDEC CORP·Filed 2005·Granted Jan 26, 2010·13 cites·7 claims
- 2384US8754554B2Motor and disk drive apparatusTAMAOKA TAKEHITO·Filed 2012·Granted Jun 17, 2014·6 cites·12 claims
- 2484US8416524B2Spindle motor having connecting mechanism connecting lead wire and circuit board, and storage disk drive having the sameSAICHI MASAYOSHI·Filed 2011·Granted Apr 9, 2013·11 cites·36 claims
- 2584US8324776B2Spindle motor including an electrically conductive adhesive and a non-conductive adhesive arranged between a base and a bearing unitTAMAOKA TAKEHITO·Filed 2010·Granted Dec 4, 2012·9 cites·10 claims
- 2684US8223455B2Rotor hub, motor, and disk driving deviceIGUCHI TAKURO·Filed 2007·Granted Jul 17, 2012·8 cites·11 claims
- 2784US7764000B2Spindle motorNIDEC CORP·Filed 2007·Granted Jul 27, 2010·8 cites·13 claims
- 2884US7593182B2Recording disk driving device motor unit having a sheet member attached to a baseNIDEC CORP·Filed 2006·Granted Sep 22, 2009·7 cites·22 claims
- 2983US8520335B2Spindle motor including hydrodynamic bearing and storage disk drive including sameMIZUKAMI JUNYA·Filed 2011·Granted Aug 27, 2013·7 cites·15 claims
- 3082US8794839B2Bearing apparatus, spindle motor, and disk drive apparatusKIMURA AKIHIRO·Filed 2012·Granted Aug 5, 2014·5 cites·31 claims
- 3181US9909591B2Blower fanNIDEC CORP·Filed 2014·Granted Mar 6, 2018·5 cites·10 claims
- 3279US10959353B2Cooling deviceNIDEC CORP·Filed 2019·Granted Mar 23, 2021·2 cites·3 claims
- 3379US10677258B2Blower comprising impeller and motorNIDEC CORP·Filed 2018·Granted Jun 9, 2020·3 cites·21 claims
- 3479US8711514B2Motor and disk drive apparatusIWASAKI SHUJI·Filed 2012·Granted Apr 29, 2014·6 cites·32 claims
- 3579US7988810B2Sleeve unit, method of manufacturing thereof, and motor using the sleeve unitNIDEC CORP·Filed 2007·Granted Aug 2, 2011·9 cites·15 claims
- 3678US9360019B2FanNIDEC CORP·Filed 2014·Granted Jun 7, 2016·4 cites·19 claims
- 3778US7866047B2Sleeve-unit manufacturing methodNIDEC CORP·Filed 2006·Granted Jan 11, 2011·9 cites·25 claims
- 3876US8553355B2Spindle motor and storage disk driveNIDEC CORP·Filed 2013·Granted Oct 8, 2013·4 cites·22 claims
- 3976US8259408B2Spindle motor having magnetic circuit for stator and rotor magnet, and storage disk drive having the sameTAMAOKA TAKEHITO·Filed 2011·Granted Sep 4, 2012·3 cites·13 claims
- 4075US8922945B2Disk drive spindle motor with wiring substrate having extension portion passing through opening in baseNIDEC CORP·Filed 2013·Granted Dec 30, 2014·3 cites·30 claims
- 4175US8189290B2Spindle motor and disk drive apparatus using the sameSAKATA YASUHIRO·Filed 2009·Granted May 29, 2012·5 cites·19 claims
- 4274US10161405B2Cooling apparatusNIDEC CORP·Filed 2014·Granted Dec 25, 2018·3 cites·20 claims
- 4373US7525231B2Stator used for recording disk driving motor, recording disk driving motor, and recording disk driving deviceNIDEC CORP·Filed 2006·Granted Apr 28, 2009·6 cites·25 claims
- 4472USD1106402SPlug of pipe jointNIDEC CORP·Filed 2025·Granted Dec 16, 2025·0 cites·1 claims
- 4572US9051938B2Fan bearing system having a fluid reservoirHIRONO TEIICHI·Filed 2012·Granted Jun 9, 2015·4 cites·7 claims
- 4672US8542459B2Spindle motor and storage disk driveNIDEC CORP·Filed 2013·Granted Sep 24, 2013·3 cites·22 claims
- 4771US2025334304A1Flow path unit and refrigerant circulation deviceNIDEC CORP·Filed 2025·Application pending·0 cites
- 4870US11841183B2Cooling unitNIDEC CORP·Filed 2022·Granted Dec 12, 2023·0 cites·8 claims
- 4970US10047755B2FanNIDEC CORP·Filed 2014·Granted Aug 14, 2018·2 cites·18 claims
- 5070US9316229B2Motor and fanNIDEC CORP·Filed 2013·Granted Apr 19, 2016·3 cites·11 claims
Showing the top 50 of 155 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →