Inventor · disambiguated record
Mutsuro Ohta
Also filed as: OHTA MUTSURO
29 granted patents·1 pending application·354 citations·filing 1995–2016
97Inventor score
Top patents by PatentIndex Score
30 records- 0196US7570455B2Data storage device and magnetic disk drive in hermetically sealed conditionHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Aug 4, 2009·65 cites·18 claims
- 0290US9672870B1Sealed bulkhead electrical feed-through X-Y positioning controlWESTERN DIGITAL TECH INC·Filed 2016·Granted Jun 6, 2017·13 cites·15 claims
- 0390US7609483B2Data storage device with load/unload tab inclined towards a diskHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Oct 27, 2009·11 cites·14 claims
- 0488US7564645B2Rotating disk storage device with mounting structure and enhanced fixing mechanismHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jul 21, 2009·8 cites·10 claims
- 0587US7450347B2Head suspension with bridge portion separating apertures near lift tabHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Nov 11, 2008·12 cites·17 claims
- 0685US6636380B2Hard disk driveIBM·Filed 2001·Granted Oct 21, 2003·20 cites·5 claims
- 0783US8305714B2Voice-coil motor with voice coils configured oriented in the same direction and substantially overlayed to reduce head vibrations in a disk driveSUZUKI KENJI·Filed 2010·Granted Nov 6, 2012·7 cites·25 claims
- 0883US6507461B1Inertial latch for an actuator in a disk drive deviceIBM·Filed 1999·Granted Jan 14, 2003·40 cites·4 claims
- 0981US6532137B2Head assembly, disk drive apparatus, hard disk drive and method for manufacturing disk drive apparatusIBM·Filed 2001·Granted Mar 11, 2003·15 cites·10 claims
- 1080US6952323B2System and method of constraining vibration in a disk drive unit and motor deviceIBM·Filed 2002·Granted Oct 4, 2005·15 cites·11 claims
- 1179US9747956B1Base for protecting external welds of hermetically sealed electronic devicesHGST Netherlands BV·Filed 2016·Granted Aug 29, 2017·6 cites·20 claims
- 1278US6639758B2Disk drive apparatus including a load/unload ramp with different angles for standard and depopulated versionsHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Oct 28, 2003·13 cites·1 claims
- 1375US8699166B2Magnetic head drive device with micro-actuators of end arms rotating in a direction opposite micro-actuators of intermediate armsSUZUKI KENJI·Filed 2010·Granted Apr 15, 2014·3 cites·7 claims
- 1474US7030527B2Data storage device with mechanism to control rotation of spindle motorHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Apr 18, 2006·19 cites·22 claims
- 1573US5796555ATransducer suspension system having bosses with different inner diameters, and equal outer diametersIBM·Filed 1997·Granted Aug 18, 1998·26 cites·8 claims
- 1670US6137658AApparatus for guiding and locking a rotary actuatorIBM·Filed 1998·Granted Oct 24, 2000·22 cites·8 claims
- 1769US6034843AActuator arm assembly and wiring aparatus used in a disk storage system for wiring voice coil wires to a flex cableIBM·Filed 1998·Granted Mar 7, 2000·20 cites·21 claims
- 1867US7830639B2Data storage device and disk driveHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Nov 9, 2010·1 cites·14 claims
- 1967US6900956B2Disk device and data-erasing methodHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted May 31, 2005·6 cites·14 claims
- 2063US8289657B2Actuator mechanism for magnetic disk driveOHTA MUTSURO·Filed 2008·Granted Oct 16, 2012·1 cites·10 claims
- 2160US6633452B2Disk drive apparatus, hard disk drive, and enclosure for hard disk driveIBM·Filed 2001·Granted Oct 14, 2003·5 cites·7 claims
- 2254US5896245AStructure in a disk drive system for attaching a load beam to a head actuator carriage including a mountplate having side ends surrounding a swage holeIBM·Filed 1996·Granted Apr 20, 1999·11 cites·7 claims
- 2353US8009390B2Head gimbal assembly with recessed portion and manufacturing method thereofHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Aug 30, 2011·0 cites·9 claims
- 2453US7787218B2Data storage deviceHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Aug 31, 2010·0 cites·17 claims
- 2553US7203034B2Using eddy-currents for releasing actuator suspension assembly of rotary disk storage deviceHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Apr 10, 2007·2 cites·20 claims
- 2651US8467152B2Actuator latching mechanism for magnetic disk driveCHAWANYA TAKESHI·Filed 2008·Granted Jun 18, 2013·0 cites·11 claims
- 2750US5628571ABearing structureIBM·Filed 1995·Granted May 13, 1997·12 cites·13 claims
- 2846US8514523B2Flexible-printed-circuit voice-coil assembly configured for integration in a voice-coil motorSUZUKI KENJI·Filed 2011·Granted Aug 20, 2013·0 cites·13 claims
- 2943US2015015995A1Hard disk drive spindle motor cupHGST Netherlands BV·Filed 2013·Application pending·0 cites
- 3032US5818657ADisk drive with impulse torque generating elementIBM·Filed 1996·Granted Oct 6, 1998·1 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →