Patents
Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963)
09/1998
09/15/1998US5808836 Load beam with grooved wire-gluing region
09/15/1998US5808835 Head supporting device utilizing adhesive to secure the load beam to the actuator arm in a disk drive system
09/15/1998US5808834 Laminated adapter
09/15/1998US5808832 Air bearing surface
09/15/1998US5808830 Architecture for 2-1/2 inch diameter single disk drive
09/15/1998US5808736 Thin film flying height calibration disk for calibrating flying height testers
09/15/1998US5808440 Hybrid communication method and apparatus for a three-phase brushless DC motor
09/15/1998US5808438 Method and system for limiting current in a read/write head retract circuit
09/15/1998US5808302 Fine positioning apparatus with atomic resolution
09/15/1998US5808184 For use in detecting asperities on a surface of a disc
09/11/1998WO1998039771A1 Tape servo system and methods, write/read heads, and servo track configurations regarding same
09/10/1998DE19755708A1 Stable data write-in method for computer disc memory
09/09/1998EP0863508A2 Head position detecting method and disk device
09/09/1998EP0832483A4 Monostable active latch for a disk drive actuator
09/09/1998EP0752148B1 Sensorless closed-loop actuator unlatch
09/08/1998US5805388 For a head stack assembly of a disk drive
09/08/1998US5805386 Dual mode independent suspension read/write head assemblies in a hard disk drive
09/08/1998US5805384 Actuator latch activated by head gram load for hard disc drives
09/08/1998US5805382 Integrated conductor magnetic recording head and suspension having cross-over integrated circuits for noise reduction
09/08/1998US5805380 Overcoat magnetic head slider having overcoat and magnetic disk device
09/08/1998US5805374 Method and apparatus for fast positioning a head of a recording device
09/08/1998US5805368 Magnetic disk apparatus
09/08/1998US5805284 Optically verified glide
09/08/1998US5802701 Method of making an integrated suspension, actuator arm and coil assembly
09/03/1998WO1998038640A1 Digital servo signal processor, recording medium reproducing device, and recording medium
09/02/1998EP0862169A1 Optical storage apparatus
09/02/1998EP0604435B1 1.8" winchester drive card
09/02/1998CN1192022A Testing method and testing device for magnetic head unit
09/01/1998US5802584 Hardware alignment in a headerless disk drive architecture
09/01/1998US5802023 Method and circuit for uniformly controlling sled velocity of a disk drive
09/01/1998US5801907 Magnetic disk drive with automatic actuator and locking structure
09/01/1998US5801906 Magnetic head device incorporating a ferroelectric thin film
09/01/1998US5801903 Contact recording slider for use in a lubricant containing information storage system
09/01/1998US5801899 Mechanical shock protection for a disc drive
09/01/1998US5801896 Method and apparatus for servo pulse detection with high AC coupling and large pulse asymmetry
09/01/1998US5801894 Power-saving high performance data storage system
09/01/1998US5801505 Disk drive stiction release system
08/1998
08/27/1998WO1998037559A1 Streamlined actuator arm
08/27/1998WO1998037552A1 Piezoelectric head loading and unloading device for rigid disc drives
08/27/1998WO1998037546A2 Actuator latch with improved shock resistance
08/27/1998WO1998037545A2 Methods and apparatus for preventing disk drive damage due to microprocessor failures
08/27/1998WO1998037384A1 Optical position sensor utilizing a sinusoidal pattern
08/26/1998EP0860815A1 Short-moment-arm head assembly and gimbal for floppy disk drives
08/26/1998EP0860084A1 Flexible disk mode observer
08/26/1998EP0860006A1 Low inertia flux motor rotary actuator
08/26/1998EP0774153B1 Disk drive including embedded voice coil magnet plates
08/25/1998US5798890 Disk drive with identical three-element, side-by-side heads on opposite disk surfaces
08/25/1998US5798889 Negative pressure air bearing
08/25/1998US5798885 Head positioning control for disk apparatus using peak detection, polarity detection and sector mark detection
08/25/1998US5798884 Multiple zone data storage system and method
08/25/1998US5798883 Method for servo defect management of a magnetic disk in hard disk drive
08/25/1998CA2050120C An apparatus and a method for positioning coarse movement of a probe
08/20/1998WO1998036408A2 A magnetic structure urging an actuator assembly toward a home position
08/19/1998EP0858654A1 Tool for processing magnetic read/write heads and associated method
08/19/1998EP0827619A4 Suspension design for supporting a low mass read/write head
08/19/1998CN2288490Y Light recorder attached to basic structure of mobile phone
08/19/1998CN1190780A Method for determining encentric position and quality of fixed axle rotation magnetic head unit and apparatus thereof
08/19/1998CN1190775A Optical head feeder
08/18/1998US5796710 Information recording medium encoded to enable track following and method of recording
08/18/1998US5796703 Apparatus for controlling an electrical current passed to a writing device in an optical storage system
08/18/1998US5796702 Optical pickup system for an optical disc player
08/18/1998US5796558 Adaptive micro-actuated head gimbal assembly
08/18/1998US5796555 Transducer suspension system having bosses with different inner diameters, and equal outer diameters
08/18/1998US5796554 For attachment to an actuator arm in a disk drive
08/18/1998US5796552 Suspension with biaxially shielded conductor trace array
08/18/1998US5796551 Landing pads for air bearing sliders and method for making the same
08/18/1998US5796550 Method and apparatus for providing diverging rail edge geometry for air bearing slider
08/18/1998US5796546 Disk apparatus for controlling a seek operation of a read/write head to a target location of a recording disk
08/18/1998US5796545 Device and method for calibrating a time constant of one or more filter circuits
08/18/1998US5796543 Data track pattern including embedded servo sectors for magneto-resistive read/inductive write head structure for a disk drive
08/18/1998US5796542 Servo-track writer system having a plurality of engaging pins co-axially rotated with head actuator pivot axes
08/18/1998US5796537 Method and arrangement for servoing and formatting magnetic recording tape
08/18/1998US5796534 Apparatus which performs an ID operation simultaneously with a servo operation using a data recording medium with the ID area recorded immediately before the servo area
08/18/1998US5795490 Magnetic head damage evaluation method and apparatus therefor
08/18/1998US5795072 Bearing structure for hard disk drive
08/12/1998EP0858070A1 Disc medium substrate and disc device
08/12/1998EP0787343B1 Motion limiters in a direct access storage device for preventing disk data zone and spindle bearing damage
08/12/1998EP0655960B1 Pneumatic hub locking device for etching optical servo tracks on magnetic disks
08/12/1998EP0645043B1 Apparatus for and method of verifying etching of optical servo information on magnetic media
08/12/1998CN1190482A Magnetic head and process for producing the head
08/11/1998US5793572 Shock resistant actuator latch for a disk drive
08/11/1998US5793571 Method for manufacturing a head suspension with a microactuator
08/11/1998US5793570 Magnetic head
08/11/1998US5793569 Three piece suspension
08/11/1998US5793568 Air bearing slider deflection apparatus and method for fabricating same
08/11/1998US5793559 In drive correction of servo pattern errors
08/11/1998US5793558 Method for seek time optimization employing voice-coil motor current saturation level to define an adaptive deceleration profile
08/11/1998US5793557 Signal reproducing apparatus
08/11/1998US5793556 High speed PES demodulator
08/11/1998US5793555 Seek optimization for disk files with side-by-side head
08/11/1998US5793554 Self-servowriting system with dynamic error propagation reduction
08/11/1998US5793553 Method and assembly for increasing storage device reliability
08/06/1998WO1998034219A2 Suspension with biaxially shielded conductor trace array
08/06/1998DE19703374A1 Radial movement control method for read and write head for disk drive
08/05/1998EP0856380A2 Method for processing using beam of magnetic line of force, apparatus for carrying out said method, and carriage member for hard disk drive processed by said method
08/04/1998US5790348 Head stack assembly having a coil portion for damping vibrations which includes elongated openings in the plastic portion
08/04/1998US5790347 Head suspension load beam and flexure construction for reducing structural height
08/04/1998US5790341 Memory device for storing data
08/04/1998US5790340 Head position controller of magnetic disk unit
08/04/1998US5790333 Disk drive having optimized off-track compensation