Patents
Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963)
06/2004
06/08/2004US6747844 Disk drive
06/08/2004US6747843 Ramp design for reducing read-write head track positioning errors
06/08/2004US6747841 Optimization of temperature dependent variations in shield and pole recession/protrusion through use of a composite overcoat layer
06/08/2004US6747836 Position control system and method for magnetic hard disk drive systems with dual stage actuation
06/08/2004US6747833 Magnetic disk drive with a head oscillation function and the control method thereof
06/08/2004US6747832 Disk apparatus and head position control method
06/03/2004WO2004047107A1 Restoration method of non-detected hard disk for re-use keeping old data and emergency repair option
06/03/2004US20040105294 Center frequency adjustment for a notch filter
06/03/2004US20040105190 Voice coil motor coupling structure of hard disk drive
06/03/2004US20040105186 Method for servo writing and disk drive with servo control system
06/03/2004US20040105185 Method and apparatus to write and inspect servo information on a disc drive
06/03/2004US20040105184 Servo track writing device and method thereof
06/02/2004CN1501400A Adjustable current mode differential amplifier
06/02/2004CN1501390A Tape cassette
06/02/2004CN1501389A Method for disk drive
06/02/2004CN1501386A Recording/reproducing apparatus, program recorded medium, recorded medium, cache device, and transmitter
06/02/2004CN1501366A Compensation structure and method for positioning of laser head module track search
06/01/2004US6744723 Guide shaft support mechanism and recording medium recording and reproducing apparatus
06/01/2004US6744716 Pickup moving mechanism for optical disk apparatus and pickup moving method therefor
06/01/2004US6744703 Continuous recording apparatus by interpolating the audio signal during seeking operation
06/01/2004US6744702 Apparatus for accessing recording disk by controlling the coarse and precise actuators
06/01/2004US6744600 Magnetic disk device and magnetic head slider
06/01/2004US6744598 Magnetic disk device and magnetic head slider
06/01/2004US6744597 Dynamic absorber for an actuator arm in a disk drive
06/01/2004US6744591 Positioning control method
06/01/2004US6744590 Seek trajectory adaptation in sinusoidal seek servo hard disk drives
06/01/2004US6744588 Recording medium and apparatus for protecting copyrighted digital data
06/01/2004US6744584 Recording medium and apparatus for protecting copyrighted digital data
06/01/2004US6744183 Method of bonding piezoelectric element and electrode, and piezoelectric microactuator using the bonding method
06/01/2004US6742694 Solder ball disposing apparatus, solder ball reflow apparatus, and solder ball bonding apparatus
05/2004
05/27/2004US20040101387 Exchange method and mechanism for a component of the magnetic head and the suspension or the head gimbal assembly of the hard disk driver during manufacture
05/27/2004US20040100734 Pivot assembly for hard disk drive use
05/27/2004US20040100722 Magnetic disk storage system
05/27/2004US20040100721 Energy storage for use in emergency head retraction in disk drives
05/27/2004US20040100720 Digital processor controlled method and circuit for retracting a head carriage assembly to a parked position in a mass data storage device, or the like
05/27/2004US20040100718 Digital processor controlled method and circuit for retracting a head carriage assembly to a parked position in a mass data storage device, or the like, by actively detecting a collision with a crash stop
05/27/2004US20040100717 Digital processor controlled method and circuit for retracting a head carriage assembly to a parked position in a mass data storage device, or the like, by actively detecting a desired velocity
05/27/2004US20040100713 Head switching method and system using track number matching
05/27/2004DE10195365T5 Verfahren zur Herstellung einer Lade-/Entladerampe mit integriertem Schmiermittel für ein Plattenlaufwerk A process for preparing a load / unload ramp with integrated lubricant for a disk drive
05/26/2004EP1422695A1 Head switching method using track number matching
05/26/2004CN1500262A Adjustable fly height control using adjustable head actuator assembly
05/26/2004CN1499512A Head positioning control method, and disk device using such head positioning control method
05/26/2004CN1499492A Reproduction method of recording medium, reproducing control circuit and reproducer
05/26/2004CN1499489A Parts connector and connection structure formed by multiple parts
05/26/2004CN1499488A Method and device of data access operation for selecting queue in disc memory
05/26/2004CN1151509C Head locating actuator and disk apparatus incorporating same
05/25/2004US6741914 Notch filtering as used in a disc drive servo
05/25/2004US6741542 Disk device
05/25/2004US6741541 Disk player
05/25/2004US6741529 Method and apparatus for moving carriage assembly from initial position to target position and optical disc system including same
05/25/2004US6741427 Magnetic disk drive having arm displacement limit mechanism for shock resistance
05/25/2004US6741012 Piezoelectric actuator
05/21/2004WO2004042727A1 System and method for preventing computer storage media surface contaminant accumulation and for preventing impact-related head/slider damage
05/21/2004WO2004042726A1 Recorder/reproducer
05/21/2004WO2004042713A1 Optical disc drive apparatus, method of controlling the position of optical pickup unit, method of detecting an innermost position of an optical pickup unit
05/21/2004WO2004042706A1 Precise positioning actuator for head element, head gimbal assembly with the actuator and disk drive apparatus with the head gimbal assembly
05/20/2004US20040095688 Precise positioning actuator for head element, head gimbal assembly with actuator, disk drive apparatus with the head gimbal assembly and manufacturing method of head gimbal assembly
05/20/2004US20040095687 Precise positioning actuator for head element, head gimbal assembly with the actuator, disk drive apparatus with the head gimbal assembly and manufacturing method of head gimbal assembly
05/20/2004US20040095683 Disk drive actuator-pivot assembly with corrugated rings
05/20/2004US20040095682 System and method of damping vibration on coil supports in high performance disk drives with rotary actuators
05/20/2004US20040095681 Magnetic head suspension
05/20/2004US20040095680 Head slider for magnetic disks that prevents adhesion of dust
05/20/2004US20040095679 Hard disc drive
05/20/2004US20040095671 Data storage device, recording medium, servo writing method, and data reading/writing method
05/20/2004US20040095670 Method and apparatus actively damping mechanical vibration and shock in head suspensions of a disk drive
05/20/2004US20040095669 Hard disk balancing apparatus and method for hard disk drive
05/20/2004US20040095665 Disk writer and writing method thereof
05/20/2004US20040093971 Feed screw driver and information recorder/reproducer
05/19/2004EP1420405A2 Head retracting method/apparatus, and head actuator control circuit
05/19/2004EP1420404A2 System and method of damping vibration on coil supports in high performance disk drives with rotary actuators
05/19/2004EP1419892A1 A guide arrangement for an inkjet printer
05/19/2004CN1497594A Driving system of scanner of information recording or reproducing equipment
05/19/2004CN1497593A Piezoelectric drive, and disk device
05/19/2004CN1497536A Magnetic head universal rack assembly and its making method
05/18/2004US6738327 Servo control apparatus for optical disc player
05/18/2004US6738320 System and method for moving optical pick up from current position to target position with smooth control
05/18/2004US6738230 Method and apparatus for positioning a magnetic head using a dual-stage actuator in an information recording and/or playback device
05/18/2004US6738228 Magnetic head positioner assembly
05/18/2004US6738227 Negative pressure air bearing slider including negative pressure rail with a protruding stepped portion
05/18/2004US6738219 Seek pattern formation circuit
05/18/2004US6738218 Disk storage device and head positioning method
05/18/2004US6738217 Method and apparatus for controlling access to disk upon detection of condensation
05/18/2004US6738216 Apparatus and method for head load control in disk drive
05/18/2004US6738214 Detection of static and dynamic position of disk drive
05/18/2004US6738213 Disk drive for controlling maximum current that flows through same
05/18/2004US6738206 Decision error compensation technique for decision-directed timing recovery loop
05/13/2004WO2004040572A1 Actuator for magnetic head and magnetic disc drive
05/13/2004US20040091298 Guiding apparatus for an inkjet printer
05/13/2004US20040090713 Slim actuator and slim micro-drive apparatus comprising the same
05/13/2004US20040090712 Actuator locking apparatus for hard disk drive
05/13/2004US20040090710 Magnetic head apparatus, magnetic head supporting mechanism and magnetic recording apparatus
05/13/2004US20040090708 Flying head slider and disk storage apparatus using the same
05/13/2004US20040090698 Self-monitoring and self-healing of frequency specific position errors in a data storage device
05/13/2004US20040090697 Detection of a lower limit of tape head travel in a single reel tape drive
05/13/2004US20040090696 Recording device having disk-shaped recording medium and servo information processing method
05/13/2004US20040089638 Component jointing apparatus and joint structure formed of a plurality of parts
05/13/2004DE10085246B4 Verfahren und Vorrichtung für eine verbesserte Einstellung des statischen Rollwinkels Method and apparatus for improved setting of the static roll angle
05/13/2004DE10085239B4 Plattenkopf-Gleitstück mit eingelassenen, mit Einschnitten versehenen Schienen für verringerte Haftreibung Disk head slider with recessed provided with notches rails for reduced friction
05/12/2004EP1418578A2 Monitoring and correction of frequency specific position errors in a data storage device
05/12/2004CN1495753A Recording and/or replay equipment