| Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963) |
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| 04/26/2000 | EP0996114A2 Servo system and method with multiple phase clock |
| 04/25/2000 | USRE36672 Read/write head retract mechanism |
| 04/25/2000 | US6055134 Combined load/unload ramp and snubber for disc drives |
| 04/25/2000 | US6055132 Integrated lead suspension flexure for attaching a micro-actuator with a transducer slider |
| 04/25/2000 | US6055131 Magnetic head suspension having selected thicknesses for enhancing rigidity |
| 04/25/2000 | US6055130 Slider with negative pressure air bearing |
| 04/25/2000 | US6055129 Flying negative pressure air bearing slider with divided negative pressure pockets |
| 04/25/2000 | US6055128 Dual etch step pad air bearing design with three etch depths |
| 04/25/2000 | US6055127 Disc head slider having surface discontinuities to minimize fly stiction |
| 04/25/2000 | US6055125 Cartridge load and eject mechanism for a removable cartridge drive |
| 04/25/2000 | US6055122 Magnetic recording apparatus having a reduced thickness |
| 04/25/2000 | US6054833 Disk drive having improved head-velocity control, and method therefor |
| 04/25/2000 | US6054828 Circuitry and methods for adjusting and switching the gain of a digital-to-analog converter in a disk drive |
| 04/25/2000 | US6053061 Sliding feed mechanism having worm gear |
| 04/25/2000 | US6052890 Method of making a head disk assembly using a propagated light beam to detect a clearance between a disk and a head |
| 04/20/2000 | WO2000022614A1 Disc drive method and apparatus for dynamically adjusting seek operations |
| 04/20/2000 | WO2000022613A1 Head suspension with flexible circuit interconnect for reduced moisture permeability |
| 04/20/2000 | DE19948334A1 Hard disk drive control system, for reducing the noise generated by the movement of the transducer head in a hard disk drive, uses a controller to provide a sinusoidal function of time for the acceleration of the transducers head |
| 04/19/2000 | EP0994478A1 Head control unit for a disk apparatus |
| 04/19/2000 | EP0994474A1 Disc drive and control thereof |
| 04/19/2000 | EP0994467A2 Head control unit in a disk apparatus |
| 04/19/2000 | EP0766883B1 Actuator retraction circuit |
| 04/19/2000 | CN1250934A Tracing control method |
| 04/18/2000 | US6052358 Head feeding mechanism and optical pick-up feeding mechanism |
| 04/18/2000 | US6052259 Head support arm having conductive wires of a disk drive device |
| 04/18/2000 | US6052252 Adaptive feed forward device for reducing current control errors |
| 04/18/2000 | US6052251 Actuator arm integrated piezoelectric microactuator |
| 04/18/2000 | US6052250 Disk drive with separately determined servo and data track pitch |
| 04/18/2000 | US6052244 Servo signal processing apparatus, recorded data reading apparatus and method for processing servo signal |
| 04/18/2000 | US6052243 Magnetic disk unit for detecting contact between a magnetic head slider and a magnetic disk and method therefor |
| 04/18/2000 | US6049969 Head-disc merge station for a disc drive |
| 04/18/2000 | US6049968 Method for producing floating type of magnetic head used in a magnetic recording apparatus |
| 04/18/2000 | CA2017841C Digital transmission system using subband coding of a digital signal |
| 04/13/2000 | WO2000021145A1 Piezoelectric drive device |
| 04/13/2000 | DE19949155A1 Actuator arm for a hard disk drive, has a magnetic latch formed from the base plate of the actuator support |
| 04/13/2000 | DE19846835A1 Verfahren zur Spurlageregelung Method for tracking control |
| 04/12/2000 | EP0992995A1 Driving device and servo method |
| 04/12/2000 | CN1250207A Method for producing magnetic head slug and method for producing combined recording head |
| 04/11/2000 | US6049444 Rotatable door and door opening mechanism for a cartridge |
| 04/11/2000 | US6049442 Multiply-written servo burst patterns for minimizing position error in servo disk drives |
| 04/11/2000 | US6049441 Method and apparatus for real-time filtering of a position error signal for a disk drive servo system |
| 04/11/2000 | US6049440 Self written read/write track servo parameter for spindle RRO compensation |
| 04/11/2000 | US6049438 Method and apparatus for encoding digital servo information in a servo burst |
| 04/11/2000 | US6049437 Apparatus for providing new servo information on a disk without entirely erasing old servo information |
| 04/06/2000 | WO2000019427A1 Extending actuator range through magnetic flux reversal detection |
| 04/06/2000 | WO2000019417A1 Actuator assembly debris reduction |
| 04/06/2000 | DE19845134A1 Piezoelektrische Antriebsvorrichtung Piezoelectric drive unit |
| 04/05/2000 | EP0991175A1 High-performance integrated microactuator, particularly for a hard disc read/write transducer |
| 04/05/2000 | EP0991056A2 Disk recording or playback device and method of adjusting initial position of pickup thereof |
| 04/05/2000 | EP0991055A1 Magnetic head device and disc drive device |
| 04/05/2000 | CN1249840A Tape servo system and method, write/read heads, and servo track configurations |
| 04/05/2000 | CN1249516A Negative pressure air bearing slider |
| 04/05/2000 | CN1249511A Disk record system and method for controlling rotating of rotary disk in system |
| 04/05/2000 | CN1249504A Disk recording/replaying unit and its pick-up initial position adjusting method |
| 04/05/2000 | CN1249502A Loading mechanism with matched finger for loading magnetic disc support assembly on magnetic disc |
| 04/04/2000 | US6046976 Disc cartridge with grooves for a recording and reproducing apparatus |
| 04/04/2000 | US6046974 Optical pickup transport mechanism |
| 04/04/2000 | US6046888 Base plate-mounted microactuator for a suspension |
| 04/04/2000 | US6046887 Suspension for disc drive |
| 04/04/2000 | US6046884 Low mass disc drive suspension |
| 04/04/2000 | US6046883 Head suspension having a flexure motion limiter |
| 04/04/2000 | US6046878 Object positioning using discrete sliding mode control with variable parameters |
| 04/04/2000 | US6046877 Protection apparatus and method for hard disk drive unit of a portable computer |
| 03/30/2000 | WO2000017866A1 Positioning system and apparatus including the positioning system |
| 03/30/2000 | DE19941109A1 Drive for hard disc has magnetic substance fixed at defined point on spool to lie in region of boundary between poles of permanent magnet when head is in parking zone |
| 03/30/2000 | DE19929504A1 Vacuum air bearing slider for data storage device has single air bearing surface, pair of air bearing surfaces on underside of sliding body, air flow passage formed between pair of surfaces |
| 03/29/2000 | EP0989549A1 Method and apparatus for controlling a voice control motor in a hard disk drive |
| 03/29/2000 | EP0989548A2 Voice coil motor control circuit and method |
| 03/29/2000 | EP0988631A1 Laser assisted track width definition and radial control with magnetic recording |
| 03/29/2000 | EP0667615B1 Load/unload apparatus and driving control circuit |
| 03/29/2000 | CN1248772A Disc driving device |
| 03/28/2000 | US6044334 Method for calculating an amount and determining a position of an eccentric mass of a rotary head apparatus of a fixed shaft type and apparatus for calculating and determining the same |
| 03/28/2000 | US6044057 Optical disk drive having an adjusting mechanism for adjusting phase and tilt |
| 03/28/2000 | US6043957 Head positioning mechanism for magnetic disk device provided with micro tracking actuator using magnetic force and drive control method therefor |
| 03/28/2000 | US6043956 Suspension for disk drive |
| 03/28/2000 | US6043954 Cartridge load and eject mechanism for a removable cartridge drive |
| 03/28/2000 | US6043952 Method of positioning a head in a disk drive using groups of servo bursts |
| 03/28/2000 | US6042658 Rotatable actuator armset produced by precision investment casting of aluminum-based alloy containing significant amounts of beryllium |
| 03/23/2000 | WO2000016332A1 Concentric spacing of virtual data tracks using run-out compensation |
| 03/22/2000 | EP0986810A1 Apparatus for recording data in parallel tracks |
| 03/22/2000 | CN1248048A Magnetic head assembly and magnetic disk drive |
| 03/21/2000 | US6041028 Dynamic adjustment of disk-drive pickup signals |
| 03/21/2000 | US6040960 Air damper for disc drive actuator latch mechanism |
| 03/21/2000 | US6040959 Slider with blunt edges |
| 03/21/2000 | US6040958 Magnetic head slider and magnetic disk apparatus having the magnetic head slider |
| 03/21/2000 | US6040674 Motor driving device, method of adjusting the same, and information storage device |
| 03/16/2000 | WO2000000976A3 Synchronous digital demodulator with integrated read and servo channels |
| 03/16/2000 | DE19942434A1 Position detector for optic receiver in optic disk recording or reproduction device, e.g. CD drive, having switch arranged between input of controller and motor |
| 03/15/2000 | EP0986102A2 Polycrystalline silicon carbide ceramic wafer and substrate |
| 03/15/2000 | EP0986049A1 Head assembly and disk drive |
| 03/15/2000 | EP0985211A2 Optical scanning unit comprising a first and a second lens unit |
| 03/15/2000 | EP0985209A1 Head gimbal protection for a disk drive |
| 03/15/2000 | CN1050434C Seal for bearings in small angle oscillation applications |
| 03/15/2000 | CN1050433C Tribo-attractive contact slider for optical read/write storage system |
| 03/14/2000 | US6038113 Surface Characteristics of a Magnetic disk and a magnetic disk apparatus |
| 03/14/2000 | US6038111 Cartridge having brushes above and below a cleaning tape for cleaning the reciprocating read/write head of a magnetic tape player and/or recorder |
| 03/14/2000 | US6038104 Rotating disk type information storage apparatus having a movable member integrated with a support member |
| 03/14/2000 | US6038102 Conductor trace array having interleaved passive conductors |
| 03/14/2000 | US6038101 Magnetic head and method of manufacturing magnetic head |
| 03/14/2000 | US6038096 Adaptive sector seeking method for reducing disk drive power consumption |