Patents
Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963)
09/1997
09/16/1997US5668678 Detecting servo data and servo bursts from discrete time samples of an analog read signal in a sampled amplitude read channel
09/16/1997US5668545 Simplified encoding apparatus and method for pilot tone modulation in automatic-track-following
09/16/1997US5667600 Aluminum alloys containing beryllium and investment casting of such alloys
09/16/1997US5666717 Method for manufacturing a magnetic head suspension
09/12/1997WO1997033281A1 Disk drive and recording or reproducing method therefor
09/10/1997CN1159051A Velocity detector for sled motor
09/09/1997US5666336 Reproduction apparatus for reproducing first and second data regions on a CD-ROM
09/09/1997US5666244 Rotary actuator assembly in a disk drive having a magnetic actuator arm latch
09/09/1997US5666236 Velocity control for a disk drive actuator
09/04/1997WO1997032301A1 In-drive correction of servo pattern errors
09/03/1997EP0793229A1 Air bearing surface features for optimized transducer spacing
09/03/1997EP0587905B1 Data recording medium and data recording apparatus
09/03/1997EP0547218B1 Audio record carrier and players for playing said record carrier
09/02/1997US5663937 Magnetic head slider for supporting a recessed magnetic head and having a side recess to prevent inadvertent contact with disc surface at rim
09/02/1997US5663847 Rejection of disturbances on a disk drive by use of an accelerometer
09/02/1997US5663846 Driving apparatus for floating-type magnetic head
08/1997
08/27/1997EP0791924A2 Method and apparatus for reducing phase lag resulting from digital to analog conversion
08/27/1997EP0791917A2 Head suspension arm
08/26/1997US5661760 Wide biphase digital servo information detection, and estimation for disk drive using servo Viterbi detector
08/26/1997US5661705 Optical disk pickup control apparatus and method providing stabilized search operations
08/26/1997US5661619 Gimballing flexure with static torque offset compensation feature
08/26/1997US5661618 Magnetic recording device having a improved slider
08/26/1997US5661617 Head positioning control system
08/20/1997EP0789906A1 Flexures which reduce friction in an actuator for a data storage device
08/20/1997EP0789905A1 Head load/unload and cleaning in a data storage device
08/20/1997EP0789904A1 Wing attachment for head load/unload in a data storage device
08/20/1997EP0789903A1 Low flying magnetic heads for stabilizing flexible media
08/20/1997CN1157459A Multiple zone data storage system and method
08/20/1997CN1157138A Oral liquor using clam extract as main medicinal component and its produsing method
08/19/1997US5659526 Optical seeking apparatus with track crossing signal generation using a corrected tracking error signal having a constant amplitude during periods of data
08/19/1997US5659448 Magnetic head supporting mechanism including a slider fixed to a slider spacer by a fixing area smaller than a contact area
08/19/1997US5659438 Head positioning control system using stored voice coil motor correction data
08/19/1997US5659437 Data storage apparatus having servo control system
08/19/1997US5659436 Radial self propagation pattern generation for disk file servowriting
08/19/1997US5657531 Magnetic head arm, method of producing the same and apparatus for producing the same
08/13/1997EP0789357A2 Method and apparatus for manufacturing information storage devices
08/13/1997EP0789351A1 Conductive trace flexure for a magnetic head suspension assembly
08/13/1997CN1157049A System for storying and reproducing information
08/13/1997CN1156874A Method and apparatus for positioning dual element magnetoresistive head
08/12/1997US5657300 Magnetic head having elastic members for magneto-optical recording device
08/12/1997US5657188 Head suspension with tracking microactuator
08/12/1997US5657187 Load beam having tuned resonance mode performance for supporting a read/write head
08/12/1997US5657186 Device for supporting a magnetic head slider and magnetic head apparatus provided with the device including grounding electrical connection
08/12/1997US5657185 Floating magnetic head having a reinforced structure and a manufacturing method thereof
08/12/1997US5656877 Swing-type actuator and method of making same
08/12/1997US5655286 Integrated transducer-suspension structure for longitudinal recording
08/07/1997WO1997028529A1 Disc drive system using multiple pairs of embedded servo bursts
08/06/1997EP0787343A1 Motion limiters in a direct access storage device for preventing disk data zone and spindle bearing damage
08/06/1997EP0787342A1 Device for reading an information carrier, including discriminating means for determining a type of information carrier
08/05/1997US5654946 Method for determining reproduction position of a reproduction device
08/05/1997US5654852 Stopper mechanism in a floppy disc apparatus
08/05/1997US5654848 Voice coil motor for a disc drive
08/05/1997US5654835 Magnetic disk controller capable of avoiding erroneous write operations to ZBR-type magnetic disks
07/1997
07/30/1997EP0786133A1 Synchronous detection of concurrent servo bursts for fine head position in disk drive
07/29/1997US5652746 Electronic track detection methods for apparatus for simultaneously reading multiple adjacent tracks of an optical disk
07/29/1997US5652685 Read/write head for contact with a media disk
07/24/1997DE19701373A1 Servo control of head position in magnetic disc memory
07/23/1997EP0785553A1 Method and apparatus for minimizing seek time in a disk drive
07/23/1997EP0785542A1 Magnetic disk drive
07/23/1997CN1155148A Double driving magnetic-head actuator
07/22/1997US5650894 Gimballed spring arm having a reinforced plate for use with a magnetic head
07/22/1997US5650893 Roll insensitive air bearing slider
07/22/1997US5650891 Apparatus for performing multiple functions in a data storage device using a single electro-mechanical device
07/16/1997EP0783662A1 Fine positioning apparatus with atomic resolution
07/16/1997EP0783551A1 Precision joining process for at least two workpieces
07/16/1997EP0672174A4 Htlv-1 probes for use in solution phase sandwich hybridization assays.
07/16/1997CN1154555A Slider suspension assembly and method for attaching slider to suspension in data-recording disk file
07/16/1997CN1035457C Disk drive servo system
07/15/1997US5648947 Optical disk device having track jumping control
07/10/1997WO1997024608A1 Method and apparatus for positioning a magnetoresistive head
07/10/1997DE19654590A1 Programmierbare Ablaufsteuerung einer Plattensteuerung und ein Verfahren für eine zugehörige Kartenzuweisung Programmable sequence control of a disk controller and method for assigning a corresponding map
07/09/1997EP0783165A2 Method and apparatus for positioning a dual element magnetoresistive head
07/09/1997CN1153980A Retraction of disc drive actuator
07/08/1997US5646932 Optical disk, tracking error signal generating apparatus, and tracking control apparatus
07/08/1997US5646915 Information recording/reproducing apparatus in which a control value for controlling a recording/reproducing head is generated on the basis of a corrected current moving velocity and a target moving velocity
07/08/1997US5646797 Digital servo control system for use in disk drives
07/08/1997US5646682 Track width error inspector apparatus
07/08/1997US5645735 Gimbal flexure and electrical interconnect assembly
07/08/1997CA2062041C Information processing apparatus having a floating-type head with a bevelled slider
07/08/1997CA2054880C Information recording and reproducing device
07/03/1997WO1997023867A1 Hard disk drive having ring head sliding on perpendicular media
07/02/1997CN1153569A Magnetic head and system for controlling position of magnetic head
07/02/1997CN1153377A Apparatus for generating track count pulse
07/01/1997US5644452 Apparatus connecting a flexible circuit to an actuator arm of a disc drive
07/01/1997US5644449 Magnetic head slider assembly
07/01/1997US5644448 Head signal supply/retrieval structure for magnetic disk drive
07/01/1997US5642943 Self-aligning air bearing for use with servo-track writer
07/01/1997US5642773 Melting solid aluminum and beryllium charge in refractory lined furnace pot in vacuum melting furnace, pouring into disposable shell mold, freezing melt, removing mold
06/1997
06/26/1997WO1997022966A1 Method of detecting and isolating defective servo bursts
06/26/1997DE19654229A1 Automatic gain controller for optical disc replay apparatus
06/26/1997DE19653132A1 Multi-track head unit for hard disc drive
06/25/1997EP0780836A1 Subambient pressure air bearing slider
06/25/1997EP0780688A2 Velocity detector for sled motor
06/25/1997EP0610449B1 Slider air bearing surface with angled rail configuration
06/25/1997CN1152778A Structure for supporting light-sensor
06/24/1997US5640755 Method for manufacturing a magnetic head
06/19/1997WO1997022121A1 A variable pneumatic loader for testing a disk drive head gimbal assembly
06/19/1997WO1997022119A1 Magnetic recording device
06/18/1997EP0779611A2 Multiple zone data storage system and method
06/18/1997EP0549814B1 Mechanism for finely moving head