Assignee
ALPHANA TECHNOLOGY CO LTD
JP·20 granted patents·12 pending applications·73 citations·filing 2006–2013
Top patents by PatentIndex Score
32 records- 0188US7489059B2Motor mounted with improved dynamic pressure fluid bearing mechanismALPHANA TECHNOLOGY CO LTD·Filed 2006·Granted Feb 10, 2009·17 cites·2 claims
- 0283US8358484B2Manufacturing method of disk drive device capable of reducing amount of unbalance, disk drive device and subassembly thereofALPHANA TECHNOLOGY CO LTD·Filed 2009·Granted Jan 22, 2013·4 cites·15 claims
- 0383US7656064B2Motor having suction ringALPHANA TECHNOLOGY CO LTD·Filed 2008·Granted Feb 2, 2010·5 cites·1 claims
- 0480US8345379B2Disk drive device equipped with a bearing unit relatively rotatably supporting a hub against base memberALPHANA TECHNOLOGY CO LTD·Filed 2010·Granted Jan 1, 2013·12 cites·20 claims
- 0576US7745968B2Motor and disc drive with motorALPHANA TECHNOLOGY CO LTD·Filed 2007·Granted Jun 29, 2010·7 cites·7 claims
- 0676US7525226B2Dynamic pressure bearing and motor using the sameALPHANA TECHNOLOGY CO LTD·Filed 2006·Granted Apr 28, 2009·5 cites·3 claims
- 0775US7612476B2MotorALPHANA TECHNOLOGY CO LTD·Filed 2007·Granted Nov 3, 2009·4 cites·6 claims
- 0873US8773815B2Fluid bearing component including thrust bearing groove recesses and disk drive device including sameALPHANA TECHNOLOGY CO LTD·Filed 2013·Granted Jul 8, 2014·4 cites·20 claims
- 0971US8553354B2Disk driving apparatus having improved qualityALPHANA TECHNOLOGY CO LTD·Filed 2012·Granted Oct 8, 2013·3 cites·20 claims
- 1069US8693137B2Fluid dynamic bearing unit and rotating deviceALPHANA TECHNOLOGY CO LTD·Filed 2012·Granted Apr 8, 2014·2 cites·20 claims
- 1169US7931404B2Bearing device and motor mounted with the bearing deviceALPHANA TECHNOLOGY CO LTD·Filed 2008·Granted Apr 26, 2011·4 cites·6 claims
- 1266US8456050B2Disk drive device for rotating a diskALPHANA TECHNOLOGY CO LTD·Filed 2012·Granted Jun 4, 2013·1 cites·8 claims
- 1365US8979374B2Rotating deviceALPHANA TECHNOLOGY CO LTD·Filed 2013·Granted Mar 17, 2015·2 cites·20 claims
- 1459US8381404B2Method manufacturing of fluid dynamic bearing using cutting tool that performs micro alternating driveALPHANA TECHNOLOGY CO LTD·Filed 2009·Granted Feb 26, 2013·3 cites·19 claims
- 1557US8619387B2Disk drive device with hub with thinness and suppressed torque decreaseALPHANA TECHNOLOGY CO LTD·Filed 2013·Granted Dec 31, 2013·0 cites·20 claims
- 1654US2011109995A1Bearing lubricant, bearing and disk drive deviceALPHANA TECHNOLOGY CO LTD·Filed 2009·Application pending·0 cites
- 1750US2009001844A1Motor adopting improved mechanismALPHANA TECHNOLOGY CO LTD·Filed 2008·Application pending·0 cites
- 1848US8922944B2Rotating deviceALPHANA TECHNOLOGY CO LTD·Filed 2013·Granted Dec 30, 2014·0 cites·14 claims
- 1948US2013148918A1Method manufacturing of fluid dynamic bearing using cutting tool that performs micro alternating drive, fluid dynamic bearing manufactured by using the method, and disk drive device using the bearingALPHANA TECHNOLOGY CO LTD·Filed 2013·Application pending·0 cites
- 2048US2013000106A1Method of manufacturing a disk drive device having base member, bearing unit, drive unit and hub, and disk drive device manufactured by the manufacturing methodALPHANA TECHNOLOGY CO LTD·Filed 2012·Application pending·0 cites
- 2146US2013154409A1Disk drive deviceALPHANA TECHNOLOGY CO LTD·Filed 2012·Application pending·0 cites
- 2245US7901138B2Fluid bearing deviceALPHANA TECHNOLOGY CO LTD·Filed 2006·Granted Mar 8, 2011·0 cites·2 claims
- 2345US2013181558A1Rotating deviceALPHANA TECHNOLOGY CO LTD·Filed 2013·Application pending·0 cites
- 2445US2013234552A1Rotating deviceALPHANA TECHNOLOGY CO LTD·Filed 2013·Application pending·0 cites
- 2544US7744282B2MotorALPHANA TECHNOLOGY CO LTD·Filed 2006·Granted Jun 29, 2010·0 cites·2 claims
- 2642US2013025117A1Method for manufacturing a rotating deviceALPHANA TECHNOLOGY CO LTD·Filed 2012·Application pending·0 cites
- 2741US8368282B2Disk drive device rotationally driving recording diskALPHANA TECHNOLOGY CO LTD·Filed 2010·Granted Feb 5, 2013·0 cites·17 claims
- 2840US2011200279A1Rotary deviceALPHANA TECHNOLOGY CO LTD·Filed 2010·Application pending·0 cites
- 2940US2010239194A1Disk drive device improved in handling propertyALPHANA TECHNOLOGY CO LTD·Filed 2010·Application pending·0 cites
- 3038US8365413B2Fluid dynamic bearing filled with lubricant in work area having reduced pressure, method of manufacturing the fluid dynamic bearing, apparatus for manufacturing the fluid dynamic bearing, and rotating deviceALPHANA TECHNOLOGY CO LTD·Filed 2010·Granted Feb 5, 2013·0 cites·20 claims
- 3138US2011064341A1Disk drive device capable of being improved in anti-vibration characteristicALPHANA TECHNOLOGY CO LTD·Filed 2010·Application pending·0 cites
- 3225US2013081262A1Manufacturing method for totating device having improved qualityALPHANA TECHNOLOGY CO LTD·Filed 2012·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →