| Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963) |
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| 10/20/1988 | EP0247068A4 Disk drive control system. |
| 10/19/1988 | EP0287394A2 Process for producing optical recording medium |
| 10/19/1988 | EP0286865A1 Helical band drive for disc storage apparatus |
| 10/18/1988 | US4779253 Sampled servo for an optical disk drive |
| 10/18/1988 | US4779155 Disc driving device employing a seven drive head positioning unit |
| 10/18/1988 | US4779149 Positioning mechanism for a transducer in a multitrack magnetic tape apparatus or the like |
| 10/18/1988 | US4779148 System and method for detecting deviations in the positioning of a head relative to a track on the disc of a disc storage unit wherein the unit generates a ramp signal having a gradient determined by the position of the track on the disc |
| 10/18/1988 | US4779145 Record member for magnetic and optical recording |
| 10/18/1988 | US4779032 Drive device |
| 10/12/1988 | EP0285867A2 Linear actuator using a compound parallel bendable element suspension system |
| 10/11/1988 | US4777544 Method and apparatus for in-situ measurement of head/recording medium clearance |
| 10/11/1988 | US4777538 For stabilizing video image during recorded program changes |
| 10/11/1988 | US4777417 Head position control system for a disc storage unit |
| 10/11/1988 | CA1243115A1 Apparatus for reproducing information from a record carrier |
| 10/05/1988 | EP0285452A2 Magnetic disk apparatus using both servo-surface servo and data-surface servo |
| 10/05/1988 | EP0285365A2 Tracking error signal producing apparatus |
| 10/04/1988 | US4775907 Radial access mechanism for disk recording/playback apparatus |
| 10/04/1988 | US4775903 Sampled servo seek and track follow system for a magnetic disc drive |
| 10/04/1988 | US4775902 Apparatus for recording and reading information on a magnetic disk with track following circuitry |
| 10/04/1988 | US4775825 Positioning method and apparatus therefor |
| 10/04/1988 | US4775608 Generation of capacitive servo patterns on magnetic storage disks |
| 09/27/1988 | US4774699 Method and apparatus for positioning a read head to a selected track on a record disc |
| 09/27/1988 | US4774614 Magnetic head adjusting device |
| 09/27/1988 | US4774612 Carriage moving device |
| 09/27/1988 | US4774611 Rotary to linear converter for use in a magnetic disk drive or the like |
| 09/27/1988 | US4774610 Transducer element assembly comprising a cantilever detachably coupled to a support |
| 09/27/1988 | US4774605 Rotary head type digital signal playback |
| 09/27/1988 | US4774595 Recording and reproducing apparatus with magnetic head protruded onto sheet of magnetic recording medium |
| 09/27/1988 | CA1242526A1 Read/write head positioner arrangement |
| 09/22/1988 | WO1988007255A1 Fine positioning for disk drive |
| 09/20/1988 | US4772972 Magnetic disc apparatus with head assembly aligning mechanism |
| 09/20/1988 | US4772962 Still image recording and/or reproducing apparatus |
| 09/14/1988 | EP0282209A2 Data reproducing device |
| 09/13/1988 | US4771348 Carriage moving apparatus for a magnetic disk |
| 09/13/1988 | US4771346 Method and apparatus for rewriting on a magnetic disk on which data has been written by another apparatus having half the track density capability of the first apparatus |
| 09/07/1988 | WO1988006789A1 Crash-prevention for disk drive positioning system |
| 09/07/1988 | WO1988006784A1 Controlled drag for magnet actuator |
| 09/06/1988 | US4769725 Servo head positioner using VCO and counter for digitizing position information |
| 09/06/1988 | US4769721 Still picture reproducing apparatus |
| 09/06/1988 | US4769613 Digitalized amplitude detection circuit for analog input signal |
| 09/06/1988 | CA1241741A1 Variable impedance contrast in data storage media |
| 08/31/1988 | EP0279993A2 A circuit for removing unwanted temporal portions of a voltage varying signal |
| 08/31/1988 | EP0279912A2 Multiple copy data mechanism on synchronous disk drives |
| 08/30/1988 | US4768115 Computer disc drive system |
| 08/30/1988 | US4767973 Systems and methods for sensing position and movement |
| 08/30/1988 | US4767958 Stepping motor actuator with two interposed pole tooth pairs |
| 08/30/1988 | CA1241439A1 Video tape recorder |
| 08/29/1988 | EP0183699A4 Servo pattern. |
| 08/24/1988 | EP0279696A2 Method of accessing track in still state of recording medium and apparatus thereof |
| 08/24/1988 | EP0279132A1 Device for detecting the position of a plurality of magnetic heads |
| 08/23/1988 | US4766509 Magnetic head assembly |
| 08/23/1988 | US4766508 Data storage system |
| 08/17/1988 | EP0278506A2 Head slider supporting mechanism for a magnetic disk apparatus |
| 08/17/1988 | EP0278006A1 A disc device and a disc-like recording medium |
| 08/16/1988 | US4764914 Least squares method and apparatus for determining track eccentricity of a disk |
| 08/16/1988 | US4764860 Servo circuit for an information recording and/or reproducing apparatus |
| 08/16/1988 | US4764831 Apparatus and method for retaining a head arm of a disk drive assembly |
| 08/16/1988 | US4764830 Magnetic head assembly in floppy disk drive |
| 08/16/1988 | US4764829 Magnetic head assembly capable of effectively correcting position error of a head |
| 08/16/1988 | US4764826 Tape cassette and cooperating apparatus |
| 08/10/1988 | EP0277799A2 Object positioning system |
| 08/10/1988 | EP0277793A2 Access control apparatus |
| 08/10/1988 | EP0277414A2 Self-loading gas bearing slider |
| 08/09/1988 | US4763214 Apparatus for recording information |
| 08/09/1988 | US4763213 Double-sided floppy disk driving apparatus having a mechanism for preventing heads from coming into contact with each other |
| 08/09/1988 | US4763205 Method of time axis control in an information recording system for compensation of tracking error caused by track jumping |
| 08/02/1988 | US4761699 Slider-suspension assembly and method for attaching a slider to a suspension in a data recording disk file |
| 07/28/1988 | WO1988005594A1 System for positioning the head in a memory and method thereof |
| 07/27/1988 | CN85101172B Slider assembly for magnetic head |
| 07/26/1988 | US4760480 Head access mechanism for magnetic disk memory device |
| 07/26/1988 | US4760319 Circuit for removing unwanted slope transitions from an incoming signal |
| 07/26/1988 | US4759119 Method of fabricating a magnetic head assembly |
| 07/20/1988 | CN88100145A Optical disc driving device |
| 07/19/1988 | US4758914 System for protecting newly installed disk units |
| 07/13/1988 | EP0274420A1 Optical-disk driving apparatus |
| 07/12/1988 | US4757409 Carriage movement device for a magnetic memory device |
| 07/12/1988 | US4757404 Double head supporting mechanism for magnetic disk drive |
| 07/12/1988 | US4757402 Slider assembly for supporting a magnetic head |
| 07/06/1988 | EP0273546A2 Servo system for a disk drive |
| 07/06/1988 | EP0273071A1 Rotary access arm for optical disks |
| 07/05/1988 | USRE32709 Tracking system for video disc player |
| 07/05/1988 | US4755896 Contact start/stop-type fixed magnetic disk apparatus with wind vane positioning |
| 06/28/1988 | US4754353 Hard disk head positioner assembly |
| 06/22/1988 | EP0272139A2 Reproduction method for disk player |
| 06/22/1988 | EP0272076A2 Magnetic disc drive system |
| 06/22/1988 | CN85108798B Head positioning control system in magnetic disk device of index servo system |
| 06/21/1988 | US4752849 Carriage support structure |
| 06/21/1988 | US4752848 Spacing device for magnetic recording and/or reading head-holder pads in a disc memory apparatus |
| 06/14/1988 | US4751693 Memory disk apparatus |
| 06/14/1988 | US4751692 Method and apparatus for recovering information from a videodisc |
| 06/14/1988 | US4751597 Center of percussion head actuator assembly |
| 06/14/1988 | US4751595 Disk drive unit with power-off head parking and locking mechanism |
| 06/14/1988 | US4751441 Transducer position control system for disk storage equipment |
| 06/09/1988 | DE3741404A1 Informationsaufzeichnungsplatte Information recording disc |
| 06/08/1988 | EP0270357A1 Optical disk drive device and information storage device |
| 06/08/1988 | EP0186662A4 Self-timed runout correction pattern. |
| 06/07/1988 | CA1237812A1 Recording and reproduction apparatus |
| 06/01/1988 | EP0269381A2 Sampled servo code format and system for a disc drive |
| 05/31/1988 | US4748613 Disc recording apparatus provided with a mechanism for moving the head-carriage by means of a metallic belt |
| 05/31/1988 | US4748610 Servo system in data reading apparatus |