Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 21 - Head arrangements not specific to the method of recording or reproducing
Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963)
04/2003
04/01/2003US6542326 Microactuator-induced reactive forces for fine positioning a sensor
04/01/2003US6542324 Digital control of the speed of a motor by a power stage driven in discontinuous mode
04/01/2003US6541935 Method for controlling stepping motor
04/01/2003US6541898 Method of bonding piezoelectric element and electrode, and piezoelectric microactuator using the bonding method
04/01/2003US6539609 Method of forming a head gimbal assembly
03/2003
03/27/2003WO2003025932A1 Digital device configuration and method
03/27/2003US20030060905 Discretization processing method of transfer function in continuous time systems, system and program therefor, and compensator and feedback control system using the same
03/27/2003US20030059641 Metal matrix composites of aluminum, magnesium and titanium using silicon hexaboride, calcium hexaboride, silicon tetraboride, and calcium tetraboride
03/27/2003US20030058768 Position control method
03/27/2003US20030058758 Optical disc apparatus
03/27/2003US20030058753 Apparatus and method of removing disturbances
03/27/2003US20030058582 Disk unit, yoke built in disk unit and process of manufacturing same
03/27/2003US20030058581 Airflow assisted ramp loading and unloading of sliders in hard disk drives
03/27/2003US20030058577 Bonding pad of suspension circuit
03/27/2003US20030058571 Shock control for rotational recording apparatus
03/27/2003US20030058559 Gap fly height sensing using thermal load response
03/27/2003US20030058352 Information recording apparatus and information recording method
03/27/2003US20030057935 Resonance-frequency measuring method determining a resonance frequency by counting the number of off-track occurrences
03/27/2003US20030057900 Sinusoidal feed-forward seek with adaptive acoustic level constraint
03/27/2003US20030057804 Thin film piezoelectric element, manufacturing method therefor, and actuator unit using same
03/27/2003US20030056861 Metal matrix composites of aluminum, magnesium and titanium using calcium hexaboride
03/26/2003CN1406378A Dual mode disc drive and method
03/26/2003CN1405769A Information storage device of recording/generating after selecting among multiple operation mode, and control method thereof
03/26/2003CN1405761A Fixed delay-width delay comparing apparatus
03/25/2003US6538854 Actuator using piezoelectric element and head-positioning mechanism using the actuator
03/25/2003US6538853 E-block having improved resonance characteristics and improved fragility
03/25/2003US6538851 Magnetic disk apparatus
03/25/2003US6536265 Micro-textured glide sliders for super-smooth media
03/20/2003WO2002100156A3 Head suspension assembly for a slider tester
03/20/2003WO2002016306A3 Degradable, amorphous, fluoroacrylate polymers
03/20/2003US20030053381 Driving apparatus and driving method for actuator, and information recording / reproducing apparatus
03/20/2003US20030053264 Slider assemblies
03/20/2003US20030053258 Hard disk drive suspension with integral flexible circuit
03/20/2003US20030053257 Lead conductor member for thin-film magnetic head, head gimbal assembly, method for testing head gimbal assembly and manufacturing method of head gimbal assembly
03/20/2003US20030053256 Magnetic head including slider electrically connected to flexure with conductive resin film
03/20/2003US20030053254 Slider and disk device
03/20/2003US20030053247 Flexible disk drive having a thin thickness and reduced in number of parts
03/20/2003US20030053245 Circuit and method for detecting a servo wedge on spin-up of a data-storage disk
03/20/2003US20030053243 Positioning control apparatus and method capable of reducing relative position error without increasing gain and frequency band of transfer characteristics of control system
03/20/2003US20030053242 Fly height adjusted sweep cycle for a disc drive
03/20/2003US20030053240 Digital device configuration and method
03/20/2003US20030052078 Production process of electronic component using wet etching, electronic component, and suspension for hard disk
03/19/2003EP1293972A2 Method for detecting servo error, tracking error and tilt error, and apparatus therefore
03/19/2003CN1404061A Equipment and method for eliminating disturbance
03/19/2003CN1404060A Magnetic disk apparatus and servo signal recording method thereof
03/19/2003CN1404042A Disk driving equipment and track switch control method
03/19/2003CN1404038A Apparatus and method for controlling magnetic head loading in disk drive
03/18/2003US6535361 Contact planar magnetoresistive head
03/18/2003US6535360 Disk drive head suspension assembly with microactuator
03/18/2003US6535354 Head slider having pads that do not direct dust across the float patterns
03/18/2003US6535350 Over molded disc snubber
03/18/2003US6535348 Servo control method and information storage device
03/18/2003US6535347 Head controlling device in a disk apparatus
03/18/2003US6535346 Dual head disk drive unit for differing recording densities
03/18/2003US6534425 Mask design and method for controlled profile fabrication
03/13/2003WO2003022019A2 Wireless suspension design to accommodate multiple drive designs
03/13/2003WO2003021596A1 Disk drive having airflow adjusting mechanism and thin-plate member incorporated therein
03/13/2003WO2003021594A1 Disk type recording and reproducing device
03/13/2003WO2003021578A1 Disk drive head positioner with thin-film air-flow adjusting mechanism, thin film member and method of manufacturing
03/13/2003WO2003021303A2 Optical disk drive actuator assembly
03/13/2003US20030048729 Optical disc of sampled servo format, method for recording information on optical disc, and optical information recording and/or reproducing apparatus
03/13/2003US20030048571 Magnetic disk drive and control method thereof
03/13/2003US20030048567 Method and apparatus for providing positional information on a disk
03/13/2003US20030048562 Servo circuit having a synchronous servo channel and method for synchronously recovering servo data
03/13/2003US20030048561 Magnetic storage medium, method for controlling track pitch of the medium, and magnetic recorder for the medium
03/13/2003US20030048560 Data-storage disk having few or no spin-up wedges and method for writing servo wedges onto the disk
03/13/2003US20030047534 Wiring integrated flexure and method of manufacturing the same
03/12/2003EP1291853A2 Position demodulating method and circuit of disk apparatus
03/12/2003EP1291852A2 Magnetic disk drive and control method thereof
03/12/2003CN1402871A Tolerance ring with low consistent installation force profile
03/12/2003CN1402242A Position controlling method
03/12/2003CN1402241A 记录装置 Recording device
03/12/2003CN1103094C Magnetic disk apparatus and method of production thereof
03/11/2003US6532199 Optical actuator assembly with lens position sensor for recording or playback
03/11/2003US6532138 Mechanism for producing minute movement of a head of a disk device
03/11/2003US6532137 Head assembly, disk drive apparatus, hard disk drive and method for manufacturing disk drive apparatus
03/11/2003US6532136 Hard disk drive apparatus
03/11/2003US6532134 Silicon coating on air bearing surface for magnetic thin film heads
03/11/2003US6531431 Pivot assembly bearing
03/06/2003WO2003019559A1 Contact detection and calibration for electrostatic fly height control in a disc drive
03/06/2003WO2003019538A1 System and method for electrostatic fly height control
03/06/2003US20030044096 Pivot bearing for the swing arm of the hard disk drive device
03/06/2003US20030043729 Mechanism for limiting actuator assembley movement in a data storage/retrieval system
03/06/2003US20030043727 Eccentric CAM for limiting actuator tracking
03/06/2003US20030043726 Focus stop for limiting actuator assembly focus travel
03/06/2003US20030043717 Method for aligning actuator assembly to a base in a miniature optical disk drive
03/06/2003US20030043497 System and method for electrostatic fly height control
03/06/2003US20030043496 Apparatus and method for head load control in disk drive
03/06/2003US20030043494 Magnetic disk apparatus and its servo signal recording method
03/06/2003US20030043493 Auto centering of disks on a hard disk drive
03/06/2003US20030043491 Contact detection and calibration for electrostatic fly height control in a disc drive
03/06/2003US20030043371 Coatings for sensitivity enhancement of signal from glass disks
03/06/2003US20030041439 Device and method for mounting a spindle motor to a base in a miniature optical disk drive
03/05/2003EP1288929A2 Optical pickup
03/05/2003EP1288919A2 Magnetic disk apparatus and its servo signal recording method
03/05/2003EP1288918A2 Piezoelectric actuator
03/05/2003EP1288917A2 Pivot bearing for a swing arm of a hard disk drive device
03/05/2003EP1125289B1 Liquid crystal polymer disk drive suspension assembly
03/05/2003CN1400595A Destination sector search method of storage medium and its fetch device
03/05/2003CN1400593A Disc driving servo system and method for eccentricity compensation
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