Patents
Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963)
06/2000
06/13/2000US6075668 Method and apparatus for correcting for random errors in timing pattern generation
06/13/2000US6075667 Method and apparatus for determining head positioning in a magnetic disk drive system using first and second gray codes
06/13/2000CA2161799C Beryllium-containing alloys of aluminum and investment casting of such alloys
06/08/2000WO2000033302A1 Magnetic memory drive and optical device
06/08/2000WO2000033301A1 Integrated optical tracking system for magnetic media
06/08/2000WO2000033191A1 Disk security apparatus and method using stiction
06/08/2000DE19929124A1 Storage device such as hard disc reduces gain when reading data to e.g. half value of gain when writing data to reduce vibration
06/07/2000EP1006512A1 Servo control method and information storage device
06/07/2000EP0672287B1 Voice coil motor control circuit and method
06/07/2000CN1255705A Driving device and fixed speed shift servo method
06/06/2000US6072666 Head retraction system for retracting the heads of a disk drive
06/06/2000US6072665 Suspension arm for a head of a disk storage device
06/06/2000US6072664 Suspension assembly with resilient shock bumpers for a disk drive device
06/06/2000US6072663 Magnetic head slider with elongated projections for reducing stiction and dust buildup
06/06/2000US6072662 Magnetic head slider with U-shaped and/or V-shaped portions
06/06/2000US6072656 Stepping motor control method
06/06/2000US6072654 Frequency domain head linearization
06/06/2000US6072652 Technique for detecting stiction error in hard disk drive
06/06/2000US6072651 Information recording/reproducing apparatus for reproducing information without requiring tracking servo
06/06/2000US6072649 Constant density recording method and system for headless format in hard disc driver
06/06/2000US6072151 Method for adjusting head suspension load
06/02/2000WO2000031738A1 Disk drive, method of producing the same, and disk drive controller
06/02/2000CA2349598A1 Disk drive, method of producing the same, and disk drive controller
06/02/2000CA2287443A1 System and method for identifying and filtering a head suspension assembly resonance frequency
05/2000
05/31/2000EP1005038A1 Disc reproducing apparatus
05/31/2000DE19951680A1 Control method for magnetic disc device has position of magnetic head used for scanning recording track controlled by position error signal after phase adjustment of latter
05/31/2000CN1254921A Magnetic head unit and disk drive
05/31/2000CN1254909A Magnetic disk drive, magnetic disk drive controller and magnetic disk drve control system
05/30/2000US6069774 Magnetic head support device for magnetic disc recording device
05/30/2000US6069773 Shock protected high stack density suspension system
05/30/2000US6069771 Gimbal micropositioning device
05/30/2000US6069766 Miniature hard disc drive having low profile actuator arm voice coil and spindle motors
05/30/2000US6069764 Compensation for repeatable run-out error
05/30/2000US6069763 Data recording device
05/30/2000CA2078762C Recording disc
05/25/2000WO2000030080A1 Support mechanism for recording/reproducing head, and recording/reproducing device
05/25/2000WO2000030079A1 Optical apparatus for tracking a magnetic tape
05/25/2000WO2000030078A1 Disc drive anti-shock suspension cushions
05/24/2000EP1003273A2 Inductive boost circuit for disk drive
05/24/2000EP1003160A2 Pickup actuator
05/24/2000EP1003157A2 Hard disk burnishing head
05/24/2000EP0627113B1 Data recording medium, recorder, reader and recording method
05/24/2000CN1254436A Air-flow actuated latch
05/23/2000US6067210 Movable carriage assembly supporting glad/write heads for a disk drive
05/23/2000US6067209 Disk drive device with shock resistance flexure and ramp limited system
05/23/2000US6067206 Method and apparatus to compensate for servo wedge rotational offset after a head switch
05/23/2000US6067205 Positioning system for accurately positioning a read/write head over a track
05/23/2000US6067204 Disc drive servo pattern insensitive to read head
05/23/2000US6066380 Disc medium substrate and disc device
05/18/2000WO2000028540A1 Apparatus for developing a dynamic servo signal from data in a magnetic disc drive and method
05/18/2000WO2000028528A2 Subambient pressure slider
05/17/2000EP1001423A2 Data writing/reading apparatus
05/17/2000EP1000467A1 Apparatus and method for modulation /demodulation with consecutive minimum runlength limitation
05/17/2000EP0630512B1 Removable cartridge disk drive for receiving a cartridge housing a 105mb 3.5 inch hard disk
05/17/2000CN1253360A Disk set
05/17/2000CN1253359A Disk set
05/17/2000CN1253354A Disk set and its manufacturing method
05/16/2000US6064633 Track jumping controlling method/apparatus
05/16/2000US6064550 Head actuator with dual drive means
05/16/2000US6064542 Methods and apparatus for positioning read/write head in a computer disk drive
05/16/2000US6064541 Servo pattern writing method for magnetic disk drives, and magnetic disk drive adopting the method
05/16/2000US6064540 Active control for stabilizing a servo-controlled actuator system
05/16/2000US6064539 Method of retracting a read and/or write head for parking
05/16/2000US6063508 Swageable base plate with gram load offset and adjustment feature
05/16/2000US6061897 Fabrication of rail of magnetic head slider
05/16/2000US6061896 Method for assembling a disk drive actuator assembly having a spring lock mount
05/11/2000WO2000026913A1 Velocity limited loading of read heads onto disk drive media
05/11/2000DE19929280A1 Magnetic disc unit has optical arrangement for detecting track following information beneath magnetic head emitting laser beam onto recording medium and receiving reflected beam
05/11/2000DE19925876A1 Controlling position of optical acquisition head, e.g. for CD drive, involves detecting whether head has reached boundary position by detecting contact with boundary setting switch
05/10/2000CN1252879A Microactulor servo system in a disc drive
05/10/2000CN1052326C Transducer carrier for disk file with liquid film head-disk interface
05/10/2000CN1052324C Track seek method and device for use with optical information recording and reproducing apparatus
05/09/2000US6061208 Magnetic disc device with stopper on carriage to limit rotational movement of support spring
05/09/2000US6061207 Magnetic head transferring device of hard disk drive
05/09/2000US6061206 Head stack assembly for a disk drive having a unitary molded plastic E-block
05/09/2000US6061205 Slider support assembly and method
05/09/2000US6061200 In-drive correction of servo pattern errors
05/09/2000US6061199 Method and arrangement for servoing and formatting magnetic recording tape
05/09/2000US6061198 Start/stop architecture for hard disk drive utilizing a magnetoresistive head and zone texture media
05/04/2000WO2000025313A1 Adaptive filter for redundant sensor sampled magnetic tape drive control system
05/03/2000EP0997906A1 Information equipment
05/03/2000EP0997890A2 Disc reproducing apparatus
05/03/2000CN1251935A Twin coil rotating activator
05/03/2000CN1052092C Method for determining reproduction position of reproduction device
05/02/2000US6058335 Automated technique for manufacturing hard disk drive
05/02/2000US6058098 Head driving device
05/02/2000US6058081 Optical drive system having servomotor operated relative to maximum quad sum signal
05/02/2000US6057990 Multiple actuator assemblies for data storage devices
05/02/2000US6057988 Adjustable head suspension load/unload lift cam assembly
05/02/2000US6057987 Rigid disk drive with dynamic head loading apparatus and method of manufacturing a rigid disk drive with dynamic head loading apparatus
05/02/2000US6057986 Support mechanism for magnetic head sliders and method for producing the same
05/02/2000US6057985 Magnetic head device
05/02/2000US6057983 Flying head slider in which adhesion of a liquid dust is suppressed
05/02/2000US6057978 Disk driving device selectively using delayed step pulses
04/2000
04/27/2000WO2000023988A2 Overscan helical scan head for non-tracking tape subsystems reading at up to 1x speed and methods for simulation of same
04/27/2000WO2000023987A1 Liquid crystal polymer disk drive suspension assembly
04/27/2000DE19949771A1 Flexible circuit board for head gimbal assembly of hard disk has a conductive tab electrically connected to a pre-amp pad and head pad
04/27/2000DE19948314A1 Magnetic head for magneto-optical disc has glider supporting 2 magnetic field generators at different relative spacings from its rear edge
04/26/2000EP0996127A2 Method for tracking control
04/26/2000EP0996117A1 Near field optical head and reproduction method