| Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963) |
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| 03/30/1993 | US5198942 Disc drive control device with accessing and power control |
| 03/25/1993 | CA2078803A1 Positioning controller |
| 03/24/1993 | EP0533178A2 Hard disc drive |
| 03/24/1993 | EP0532609A1 Two and one half inch diameter multiple disk drive |
| 03/18/1993 | WO1993005508A1 Slider and disk storage apparatus with the slider |
| 03/18/1993 | WO1993005504A1 1.8' winchester drive card |
| 03/16/1993 | US5195067 Track access control system for a disk storage system |
| 03/16/1993 | US5194798 Servo circuit control method and system |
| 03/16/1993 | US5194788 Servo circuit |
| 03/13/1993 | CA2074018A1 Slider and disk storage apparatus with the slider |
| 03/10/1993 | EP0530698A1 Head positioning device |
| 03/09/1993 | US5193037 Compact disk drive for use with laptop computer |
| 03/09/1993 | US5193036 Transducer head skew arrangement for disk drive system |
| 03/04/1993 | WO1993004469A1 Magnetic head drive device |
| 03/04/1993 | DE4128245A1 Read-write system for data discs using fixed heads - assigns microelements to specific radial locations relating to tracks and integrated and non-rotating disc |
| 03/03/1993 | EP0530040A2 Optomagnetic disc apparatus with floating type magnetic head |
| 03/03/1993 | EP0529987A1 Rotary positioning apparatus |
| 03/03/1993 | EP0529589A2 Translating apparatus for an optical pickup device |
| 03/03/1993 | CN1020007C The method and circuit compensating failure adjust voltage in circuit of focus and/or tracing |
| 03/02/1993 | US5191568 Disc drive apparatus with tracking control based on multiple reference tracks and with automatic seek time adjustment |
| 03/02/1993 | US5191567 Method for playback of a portion of a recorded disk played before interruption of playback |
| 03/02/1993 | US5191566 Velocity detection method and apparatus therefor |
| 03/02/1993 | US5191198 Transducing apparatus |
| 02/24/1993 | EP0494869A4 Disk drive system using multiple embedded quadrature servo fields |
| 02/23/1993 | US5189652 Multi-disc recording and reproducing apparatus having detachable optical head units |
| 02/23/1993 | US5189578 Disk system with sub-actuators for fine head displacement |
| 02/23/1993 | US5189576 Rotary inertial latch for disk drive actuator |
| 02/23/1993 | US5189575 Read/write head retract mechanism |
| 02/23/1993 | US5189574 Flexible information storing disk apparatus having laminar air flow |
| 02/23/1993 | US5189571 Adaptive settle time minimization for a hard disk drive |
| 02/23/1993 | US5189569 Head drive mechanism with pivoting mechanism |
| 02/16/1993 | US5187627 Magnetic latch and crash stop |
| 02/16/1993 | US5187625 Laminated load beam |
| 02/16/1993 | CA1313710C Method of recording position information of last track recorded with data in directory area |
| 02/09/1993 | US5184393 Method of manufacturing flying magnetic head |
| 02/04/1993 | WO1993002451A1 Mechanism for finely moving head |
| 02/03/1993 | EP0526250A2 Method of apparatus for playing back recordable optical disc |
| 02/03/1993 | EP0526229A2 Hard disc drive with improved servo system |
| 02/03/1993 | EP0526185A2 Information recording/reproducing method |
| 02/03/1993 | EP0525775A2 Optical recording medium driving apparatus |
| 02/02/1993 | US5184339 Information recording-reproducing head driving circuit |
| 02/02/1993 | US5184263 Loading method and drive unit for a floating magnetic head for loading the magnetic head while preventing contact between the magnetic head and a magnetic disk |
| 01/27/1993 | EP0524629A1 Magnetic head slider support device |
| 01/27/1993 | CN1068440A Transducer carrier for disk file with liquid film head-disk interface |
| 01/26/1993 | US5182724 Information processing method and information processing device |
| 01/26/1993 | US5182685 Stepper motor torque variance compensation using varied applied voltage |
| 01/26/1993 | US5182684 Estimator positioning system and method |
| 01/26/1993 | CA1313261C Low profile head-load beam slider arm for disk drive |
| 01/21/1993 | WO1993001596A1 Process for shortening the access time (track control circuit) |
| 01/21/1993 | WO1993001593A1 Audio record carrier and players for playing said record carrier |
| 01/20/1993 | EP0523843A2 Disk file with liquid film head-disk interface |
| 01/20/1993 | CN1068210A Disk file with liquid film head-disk interface technical field |
| 01/13/1993 | EP0522717A2 Pivot mechanism for a rotary actuator |
| 01/13/1993 | EP0522714A2 Transducer assembly with disk file with liquid film transducer disk interface |
| 01/13/1993 | EP0522597A2 Methods of monitoring operating temperatures in disc drives to prevent thermal mistracking |
| 01/13/1993 | EP0522499A2 Driving apparatus for optical recording medium with accurate optical head position detection |
| 01/12/1993 | US5179485 Optical encoder for disc apparatus |
| 01/12/1993 | US5179482 Disk drive with optical encoder having integral scale member |
| 01/12/1993 | US5179480 Still image reproducing system having means for causing a movement of the reproducing head |
| 01/07/1993 | WO1993000677A1 Method and apparatus for detecting data track misregistration |
| 01/07/1993 | DE4121852A1 Bearing support for rotary positioning unit of disc memory - has support bushes mounted on central spindle with ball bearings at either end and with outer race elements subjected to axial spring loading |
| 01/06/1993 | CN1067760A Multi-track servo recording head, resultant media containing prerecorded servo track, and servo controlled head positioning system |
| 01/05/1993 | US5177654 Air bearing manganese-zinc ferrite portion and nonmagnetic ceramic body; durability, friction resistance |
| 01/05/1993 | US5177652 Dual-actuator transducer position control apparatus for seeking and following track on rotary disk |
| 01/05/1993 | US5177648 Track position detecting mechanism |
| 01/05/1993 | US5177645 Method and apparatus for generating, storing, reproducing, and displaying image information |
| 01/05/1993 | US5177384 Stepping motor and carriage transport |
| 01/03/1993 | CA2067600A1 Disk file with liquid film head-disk interface |
| 12/30/1992 | EP0520734A2 Read error compensations in data storage systems |
| 12/29/1992 | US5175724 Capacitance disc information retrieval system |
| 12/29/1992 | US5175723 Direct drive mechanism for data pickup carriage with no direct attachment between motor and frame |
| 12/29/1992 | US5175716 Method for searching a track at high speed in an optical recording/reproducing apparatus |
| 12/29/1992 | US5175658 Thin film magnetic head having a protective coating and method for making same |
| 12/29/1992 | US5175657 Disc drive with magnetic coupling to a head actuator in a removable disc cartridge and with spindle motor rotor configured into the removable disc cartridge |
| 12/29/1992 | US5175482 Stepping motor control circuit |
| 12/23/1992 | EP0519461A2 Servo circuit for an optical pick-up of disc playing apparatus |
| 12/22/1992 | US5173647 Servo positioning circuit |
| 12/22/1992 | CA1311838C Magnetic head air bearing slider |
| 12/16/1992 | EP0518566A1 Air bearing slider with relieved trailing edge |
| 12/16/1992 | EP0254748B1 Device for detecting defect of disc-like recording media |
| 12/16/1992 | CN1067131A Devicefor inscribing and /or reading rotating information carrier |
| 12/15/1992 | US5172370 Disk reproducing apparatus equipped with a pickup device capable of reading both sides of a disk |
| 12/15/1992 | US5172367 Optical pickup guide rail positioning mechanism |
| 12/15/1992 | US5172353 Track seeking control apparatus for use in data recording/reproduction systems having data tracks thereon |
| 12/15/1992 | US5172286 Load beam interlocking boss |
| 12/10/1992 | WO1992022056A1 Low profile head disk assembly |
| 12/10/1992 | CA2110172A1 Low profile head disk assembly |
| 12/09/1992 | EP0517531A2 Multi-track servo recording head, resultant media containing pre-recorded servo track, and servo controlled head positioning system |
| 12/09/1992 | EP0517478A2 Servo data recovery circuit for disk drive having digital embedded sector servo |
| 12/09/1992 | EP0516854A1 Device for controlling positioning of head of disc drive and method of controlling the same |
| 12/09/1992 | CN1066931A Method for shortening access time |
| 12/08/1992 | US5170387 Apparatus for reading an information pattern from a record carrier and signal-processing circuit for use in such apparatus |
| 12/08/1992 | US5170300 Magnetic parking device for disk drive |
| 12/08/1992 | US5170299 Edge servo for disk drive head positioner |
| 12/03/1992 | DE4205188A1 Feed mechanism for optical disc pick=up - has module moving on guides around curved gear tooth rack unit to access both sides of disc |
| 12/02/1992 | EP0515438A1 Process for converting an analog voltage to a digital value. |
| 12/01/1992 | US5168483 Magnetic head position control apparatus including drive means responsive to a summed signal from a capacitance detection electrode and a disk size detector means |
| 12/01/1992 | US5168413 Transducer head flying height monitoring methods and apparatus for disk drive system |
| 12/01/1992 | US5168398 Head positioning control apparatus for a data storage device |
| 12/01/1992 | CA1311045C Apparatus for recording and/or reproducing with a plurality of rotaryheads |