Inventor · disambiguated record
Keiji Aruga
Also filed as: ARUGA KEIJI
32 granted patents·7 pending applications·951 citations·filing 1988–2012
98Inventor score
Top patents by PatentIndex Score
39 records- 0197US5349486AMagnetic disk storage apparatus having a vibration proof structureFUJITSU LTD·Filed 1992·Granted Sep 20, 1994·114 cites·25 claims
- 0294US4967293AMulti-positioner magnetic disk storage apparatus having means for reducing mechanical vibration interference between positionersFUJITSU LTD·Filed 1988·Granted Oct 30, 1990·67 cites·35 claims
- 0393US7336444B2Magnetic head assemblyFUJITSU LTD·Filed 2005·Granted Feb 26, 2008·21 cites·14 claims
- 0491US6373654B1Disk device and apparatus for writing reference signal into the deviceFUJITSU LTD·Filed 2000·Granted Apr 16, 2002·45 cites·10 claims
- 0591US6128153AHead position control for a disk drive which performs recording about the rotational center even if the recorded servo information is eccentricFUJITSU LTD·Filed 1997·Granted Oct 3, 2000·60 cites·22 claims
- 0691US5519270ASpindle motor and disk drive having the sameFUJITSU LTD·Filed 1993·Granted May 21, 1996·80 cites·43 claims
- 0790US7697240B2Magnetic head actuator and magnetic disk device having damper material attached to actuator armTOSHIBA STORAGE DEVICE CORP·Filed 2005·Granted Apr 13, 2010·12 cites·14 claims
- 0890US5880904ADisk drive having a thickness equal to an IC memory cardFUJITSU LTD·Filed 1995·Granted Mar 9, 1999·56 cites·35 claims
- 0989US6466400B1Magnetic disk drive capable of reducing noise at starting utilizing conjoining, damped washers to support shafts in the disk driveFUJITSU LTD·Filed 2000·Granted Oct 15, 2002·27 cites·9 claims
- 1088US6266207B1Sound reducing cover seal for information recording apparatusFUJITSU LTD·Filed 1998·Granted Jul 24, 2001·46 cites·7 claims
- 1188US5041935ARotary actuator for positioning magnetic heads in a disk driveFUJITSU LTD·Filed 1989·Granted Aug 20, 1991·36 cites·19 claims
- 1286US6567237B2Sound reducing cover seal for information recording apparatusFUJITSU LTD·Filed 2001·Granted May 20, 2003·18 cites·13 claims
- 1386US6501610B1Detecting circuit for read signal from magnetic recording system using partial responseFUJITSU LTD·Filed 1996·Granted Dec 31, 2002·52 cites·21 claims
- 1486US6487038B1Recording disk drive and method of assembling the sameFUJITSU LTD·Filed 1999·Granted Nov 26, 2002·44 cites·8 claims
- 1585US6008965ADisk drive with rectification wall for circulation filter and filter unit thereforFUJITSU LTD·Filed 1998·Granted Dec 28, 1999·43 cites·14 claims
- 1678US8804266B2Double servo type magnetic disc apparatusHANYA MASAO·Filed 2012·Granted Aug 12, 2014·4 cites·6 claims
- 1778US6543289B1Rotational vibration testing apparatusFUJITSU LTD·Filed 2000·Granted Apr 8, 2003·21 cites·20 claims
- 1878US5764441AHead actuator having reduced and controlled vibration characteristics for high speed disk drive systemsFUJITSU LTD·Filed 1996·Granted Jun 9, 1998·32 cites·39 claims
- 1977US7551399B2Head suspension including flexure having as elastic bending sectionFUJITSU LTD·Filed 2005·Granted Jun 23, 2009·3 cites·9 claims
- 2075US7619854B2Product including filmed screwFUJITSU LTD·Filed 2006·Granted Nov 17, 2009·2 cites·10 claims
- 2175US5995318AHead positioning control system for disk drives each formed by assembling disks after servo control information is written externally on respective disks and disk driveFUJITSU LTD·Filed 1997·Granted Nov 30, 1999·28 cites·13 claims
- 2274US7564647B2Filtering device for a magnetic disc apparatusFUJITSU LTD·Filed 2005·Granted Jul 21, 2009·2 cites·2 claims
- 2374US6025973AConstruction for attaching a disk in a disk driveFUJITSU LTD·Filed 1998·Granted Feb 15, 2000·30 cites·6 claims
- 2471US5608592AHead actuatorFUJITSU LTD·Filed 1995·Granted Mar 4, 1997·24 cites·17 claims
- 2568US6064541AServo pattern writing method for magnetic disk drives, and magnetic disk drive adopting the methodFUJITSU LTD·Filed 1997·Granted May 16, 2000·20 cites·22 claims
- 2666US6101453AMethod and apparatus for analyzing vibration of housing of disk deviceFUJITSU LTD·Filed 1998·Granted Aug 8, 2000·25 cites·18 claims
- 2765US5112147ARotating support apparatus in disk storage deviceFUJITSU LTD·Filed 1991·Granted May 12, 1992·15 cites·17 claims
- 2862US7730763B2Balance correctorTOSHIBA STORAGE DEVICE CORP·Filed 2007·Granted Jun 8, 2010·4 cites·4 claims
- 2960US7414810B2Magnetic head structure with insulating layer configured to reduce thermal deformation of floating surface towards diskFUJITSU LTD·Filed 2004·Granted Aug 19, 2008·3 cites·3 claims
- 3057US2007165329A1Magnetic head structure with enlarged insulating layerAOKI KENICHIRO·Filed 2007·Application pending·0 cites
- 3157US2007133126A1Magnetic head structure with enlarged insulating layerAOKI KENICHIRO·Filed 2007·Application pending·0 cites
- 3255US2010079902A1Controller and storage deviceFUJITSU LTD·Filed 2009·Application pending·0 cites
- 3354US5986362AMagnetic circuit for voice coil motor of flat-coil typeFUJITSU LTD·Filed 1998·Granted Nov 16, 1999·11 cites·4 claims
- 3454US2009290261A1Carriage assembly and disk driveFUJITSU LTD·Filed 2009·Application pending·0 cites
- 3552US2008225673A1Information recording device and headFUJITSU LTD·Filed 2008·Application pending·0 cites
- 3648US2008037163A1Clamp deviceFUJITSU LTD·Filed 2006·Application pending·0 cites
- 3747US6016237AShaft construction of a disk driveFUJITSU LTD·Filed 1998·Granted Jan 18, 2000·6 cites·20 claims
- 3846US7599150B2Head stack assembly, its manufacturing method, and magnetic disc drive having the sameFUJITSU LTD·Filed 2005·Granted Oct 6, 2009·0 cites·26 claims
- 3943US2005237908A1Method for arranging a vibration suppressing plate to be arranged on an arm of an actuator for a magnetic discTOTOKU ELECTRIC·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →