Inventor
TAMAOKA TAKEHITO
JP106 patents
⚠️ This page may combine multiple inventors who share the name “TAMAOKA TAKEHITO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIDEC CORP
35 patentsUS7021829B2Apr 4, 2006
Fluid-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 motor
NIDEC CORP49 citations93
US7830049B2Nov 9, 2010
Motor and disk drive using the same
NIDEC CORP23 citations91
US8879204B2Nov 4, 2014
Motor and disk drive apparatus
NIDEC CORP7 citations84
US7988810B2Aug 2, 2011
Sleeve unit, method of manufacturing thereof, and motor using the sleeve unit
NIDEC CORP9 citations84
US7866047B2Jan 11, 2011
Sleeve-unit manufacturing method
NIDEC CORP9 citations84
US7764000B2Jul 27, 2010
Spindle motor
NIDEC CORP8 citations84
US7650697B2Jan 26, 2010
Methods of manufacturing fluid-dynamic-pressure bearing and spindle motor incorporating the bearing, and spindle motor and recording-disk drive incorporating the bearing
NIDEC CORP13 citations84
US7514831B2Apr 7, 2009
Motor having fluid dynamic bearing and disk drive with the-like motor
NIDEC CORP9 citations84
US7411762B2Aug 12, 2008
Fluid dynamic pressure bearing including dynamic pressure generating grooves, and spindle motor and disc drive including the bearing
NIDEC CORP14 citations84
US10917995B2Feb 9, 2021
Cooling device
NIDEC CORP6 citations83
US8873198B1Oct 28, 2014
Motor and disk drive apparatus
NIDEC CORP8 citations83
US8385017B2Feb 26, 2013
Spindle motor including fluid bearing and storage disk drive including the same
NIDEC CORP16 citations83
US8379345B2Feb 19, 2013
Spindle motor having dynamic pressure fluid bearing for use in a storage disk drive
NIDEC CORP14 citations83
US7542232B2Jun 2, 2009
Motor unit including spindle motor and recording-disk-driving device including the same
NIDEC CORP9 citations83
US7515379B2Apr 7, 2009
Spindle motor and recording disk drive having spindle motor
NIDEC CORP9 citations82
US10161405B2Dec 25, 2018
Cooling apparatus
NIDEC CORP3 citations73
US10072672B2Sep 11, 2018
Fan
NIDEC CORP3 citations73
US10047755B2Aug 14, 2018
Fan
NIDEC CORP2 citations73
US9523373B2Dec 20, 2016
Fan
NIDEC CORP5 citations73
US9366263B2Jun 14, 2016
Bearing apparatus, motor, and blower fan
NIDEC CORP6 citations73
US9360019B2Jun 7, 2016
Fan
NIDEC CORP4 citations73
USD1089566SAug 19, 2025
Plug of pipe joint
NIDEC CORP2 citations72
US11252837B2Feb 15, 2022
Cooling apparatus
NIDEC CORP3 citations72
US10959353B2Mar 23, 2021
Cooling device
NIDEC CORP2 citations72
US9909591B2Mar 6, 2018
Blower fan
NIDEC CORP5 citations72
US9316229B2Apr 19, 2016
Motor and fan
NIDEC CORP3 citations71
US7593182B2Sep 22, 2009
Recording disk driving device motor unit having a sheet member attached to a base
NIDEC CORP7 citations71
US10677258B2Jun 9, 2020
Blower comprising impeller and motor
NIDEC CORP3 citations68
US11920879B2Mar 5, 2024
Heat dissipation device and cooling device
NIDEC CORP2 citations67
US10962018B2Mar 30, 2021
Gas dynamic pressure bearing, motor, and blower
NIDEC CORP0 citations63
US7550883B2Jun 23, 2009
Rotor hub, spindle motor, and recording disk driving apparatus
NIDEC CORP4 citations63
US7525231B2Apr 28, 2009
Stator used for recording disk driving motor, recording disk driving motor, and recording disk driving device
NIDEC CORP6 citations63
US8922945B2Dec 30, 2014
Disk drive spindle motor with wiring substrate having extension portion passing through opening in base
NIDEC CORP3 citations62
US8553355B2Oct 8, 2013
Spindle motor and storage disk drive
NIDEC CORP4 citations62
US8542459B2Sep 24, 2013
Spindle motor and storage disk drive
NIDEC CORP3 citations62
TAMAOKA TAKEHITO
5 patentsUS8508882B1Aug 13, 2013
Spindle motor having magnetic circuit for stator and rotor magnet, and storage disk drive having the same
TAMAOKA TAKEHITO11 citations84
US8324776B2Dec 4, 2012
Spindle motor including an electrically conductive adhesive and a non-conductive adhesive arranged between a base and a bearing unit
TAMAOKA TAKEHITO9 citations83
US8675304B2Mar 18, 2014
Disk drive spindle motor with hole volume and component density relationship
TAMAOKA TAKEHITO7 citations82
US8754554B2Jun 17, 2014
Motor and disk drive apparatus
TAMAOKA TAKEHITO6 citations73
US8508883B2Aug 13, 2013
Motor including hydrodynamic bearing and disk drive apparatus including same
TAMAOKA TAKEHITO2 citations62
NTN TOYO BEARING CO LTD
2 patentsYAWATA ATSUSHI
1 patentMIZUKAMI JUNYA
1 patentIGUCHI TAKURO
1 patentSAICHI MASAYOSHI
1 patentKIMURA AKIHIRO
1 patentIWASAKI SHUJI
1 patentHIRONO TEIICHI
1 patentYAMAGUCHI KATSUKI
1 patentShowing the top 50 of 106 patents by PatentIndex Score.