Inventor · disambiguated record
Akira Tokizono
Also filed as: TOKIZONO AKIRA
20 granted patents·374 citations·filing 1991–2004
96Inventor score
Top patents by PatentIndex Score
20 records- 0194US6754019B2System and method for implementing a rotary memory deviceHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Jun 22, 2004·46 cites·19 claims
- 0294US6549349B2Adaptive vibration control for servo systems in data storage devicesIBM·Filed 2001·Granted Apr 15, 2003·44 cites·100 claims
- 0392US6219196B1Method and apparatus for suppressing mechanical resonance in a disk drive storage device using a notch filterIBM·Filed 1998·Granted Apr 17, 2001·73 cites·21 claims
- 0489US7035034B2Data storage device, control device, off-track control method, and control methodIBM·Filed 2003·Granted Apr 25, 2006·26 cites·30 claims
- 0588US6831809B2Rotary recording apparatus and method of controlling the apparatusIBM·Filed 2002·Granted Dec 14, 2004·26 cites·19 claims
- 0684US6690537B2Method and system for controlling the positioning of a read/write head of a data recording deviceHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Feb 10, 2004·16 cites·10 claims
- 0776US7079337B2Bi staple flying height detection by BEMF control profile and data integrity problem protectionHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Jul 18, 2006·12 cites·20 claims
- 0876US6707634B2Control method and apparatus for reducing the effects of hard disk contaminationHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Mar 16, 2004·11 cites·6 claims
- 0972US6567230B1Method and system for performing positioning control of a head actuator in a disk device utilizing a digital filterIBM·Filed 1999·Granted May 20, 2003·25 cites·20 claims
- 1067US7245457B2Magnetic disk drive using femto slider and having predetermined linear velocity and gram load configurationHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Jul 17, 2007·6 cites·19 claims
- 1162US6337777B1Method and apparatus for controlling data write operationsIBM·Filed 1999·Granted Jan 8, 2002·15 cites·12 claims
- 1260US6377418B1Digital filter, servo control unit, and disk driveIBM·Filed 1998·Granted Apr 23, 2002·16 cites·17 claims
- 1359US5231625AOptical disk drive wherein a preset reading laser power is used to generate a desired white laser powerIBM·Filed 1991·Granted Jul 27, 1993·15 cites·3 claims
- 1458US6414809B1Data storage device servo control apparatus and methodIBM·Filed 1999·Granted Jul 2, 2002·13 cites·16 claims
- 1551US6930849B2Disk drive unit, controller for actuator, and method for controlling hard disk drive and disk drive unitHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Aug 16, 2005·3 cites·9 claims
- 1650US6218794B1Spindle motor startup method and apparatusIBM·Filed 1999·Granted Apr 17, 2001·15 cites·5 claims
- 1744US7019921B2Control method and apparatus for reducing the effects of hard disk contaminationHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Mar 28, 2006·0 cites·8 claims
- 1841US6324132B1Method and system for controlling the positioning of a read/write head of a data recording deviceIBM·Filed 1999·Granted Nov 27, 2001·4 cites·20 claims
- 1939US6529344B1Method and system for compensating a head positioning servo in a storage deviceIBM·Filed 1999·Granted Mar 4, 2003·4 cites·14 claims
- 2039US5872677AMagnetic head position detecting method and magnetic disk apparatusIBM·Filed 1996·Granted Feb 16, 1999·4 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →