| Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963) |
|---|
| 05/26/1987 | US4667524 Carriage driving machanism |
| 05/21/1987 | WO1987003130A1 Disk drive control system |
| 05/21/1987 | DE3540803A1 Record player with a pivotable pick-up arm |
| 05/20/1987 | EP0222647A1 Raising device for a magnetic writing and/or reading head slider in a disc memory apparatus |
| 05/20/1987 | EP0222362A2 Linear motor |
| 05/20/1987 | EP0222139A2 Sealed actuator assembly |
| 05/19/1987 | US4666315 Planar and cylindrical oscillating pneumatodynamic bearings |
| 05/13/1987 | EP0221740A2 Servo data demodulators |
| 05/12/1987 | US4665453 Floppy disc recording and/or reproducing apparatus |
| 05/12/1987 | US4665449 Rotating head type reproducing apparatus |
| 05/12/1987 | US4665447 Method and apparatus for recording a digital information signal and tracking pilot signals at different locations in the track |
| 05/12/1987 | US4665442 Cross-talk eliminating device in information-carrying disc player |
| 05/06/1987 | EP0220991A2 Recording and/or reproducing apparatus, in particular for still pictures |
| 05/06/1987 | EP0220382A2 Disk incremental rewrite |
| 05/05/1987 | US4663304 Acid-treated catalysts for olefin conversion and method for preparing the catalysts |
| 05/05/1987 | CA1221455A1 Magnetic transducer positioning apparatus |
| 05/05/1987 | CA1221454A1 Continuous-plus-embedded servo data position control system for magnetic disk device |
| 05/05/1987 | CA1221452A1 Method and apparatus for recording a digital information signal |
| 04/28/1987 | US4661873 Head lifter mechanism for hard disk drive |
| 04/28/1987 | US4661872 Head unit for preventing head oscillation due to disequilibrium between head and recording medium |
| 04/28/1987 | US4661735 Arrangement for mounting a plurality of motors |
| 04/28/1987 | US4661729 Voice coil motor magnet assembly |
| 04/28/1987 | CA1221164A1 Method and apparatus for hydrodynamic magnetic recording |
| 04/23/1987 | WO1987002498A1 Apparatus and method for damping head positioners for disk drives |
| 04/23/1987 | WO1987002497A1 Transducer positioning mechanism |
| 04/22/1987 | EP0219116A2 Positioning device for a read/write head |
| 04/22/1987 | EP0218985A2 Assembly of transducer and support therefor |
| 04/22/1987 | EP0218591A1 Encoder output phase selection system for magnetic disk memory |
| 04/21/1987 | US4660120 Disk drive unit comprising a head positioning device and electromagnetic releasing/arresting means therefor |
| 04/21/1987 | US4660112 Feed device for magnetic head |
| 04/21/1987 | US4660111 Pad lifting mechanism of a floppy disk device |
| 04/15/1987 | EP0218572A1 Apparatus and method for controlling the reproduction of recorded information |
| 04/14/1987 | US4658316 Head supporting structure |
| 04/14/1987 | US4658313 Magnetic shield for rotary actuator in a magnetic disc device |
| 04/14/1987 | US4658309 Tracking controlling apparatus |
| 04/14/1987 | US4658163 Rotary to linear converter employing a lead screw, for use in a flexible magnetic disk drive or the like |
| 04/14/1987 | CA1220549A1 Magnetic tachometer for disk drives |
| 04/08/1987 | EP0217460A1 Apparatus for reading information from a record carrier |
| 04/08/1987 | CN86105667A Apparatus for positioning a plurality of scanning devices |
| 04/07/1987 | US4656539 Method and apparatus with improved tracking control for recording a digital signal |
| 04/07/1987 | US4656538 Disk drive control system |
| 04/07/1987 | US4656529 Video signal recording apparatus |
| 04/07/1987 | US4655616 Computer direct disc drive with magnetically stabilized shaft |
| 04/01/1987 | EP0215867A1 Circuit arrangement for a playback device for audio or video discs. |
| 04/01/1987 | EP0056798B1 Information recording apparatus with a disc loaded in a cassette |
| 04/01/1987 | CN86105677A 改进的磁头支承装置 Improved magnetic head supporting device |
| 03/31/1987 | US4654735 Latch for head positioning actuator for disc files |
| 03/31/1987 | CA1219951A1 Self-loading magnetic head slider |
| 03/31/1987 | CA1219950A1 Slide lock mechanism for disk drives |
| 03/26/1987 | WO1987001853A1 Head load mechanism |
| 03/24/1987 | US4652953 Magnetic head actuating mechanism constructed to minimize address effect of disturbance thereto |
| 03/24/1987 | US4652952 Head moving device |
| 03/24/1987 | US4652951 Magnetic head indexing mechanism |
| 03/24/1987 | US4652950 Floppy disc driving apparatus |
| 03/18/1987 | EP0214200A1 Circuit for an audio and/or video disk playback device. |
| 03/17/1987 | US4651246 Lifting and lowering mechanism for the magnetic head of a floppy disk drive |
| 03/17/1987 | US4651244 Device comprising a cam for coupling/decoupling magnetic heads relative to a flexible disk |
| 03/17/1987 | US4651242 Magnetic disk apparatus |
| 03/11/1987 | EP0213937A2 Apparatus for recording an information signal |
| 03/11/1987 | EP0213875A2 Recording head and support arm for stretched surface recording medium |
| 03/11/1987 | EP0213845A2 Sample and hold circuit |
| 03/11/1987 | EP0213388A2 Self-loading slider for magnetic recording heads and method of fabricating such a slider |
| 03/11/1987 | CN85106846A Time-base control method |
| 03/10/1987 | CA1219070A1 Position tracking servo control systems and methods |
| 03/04/1987 | EP0212697A1 Device for guiding a slide, and electrodynamic apparatus comprising said device |
| 03/03/1987 | US4648087 Capacitive sensing employing thin film inductors |
| 03/03/1987 | US4647997 Aerodynamic latch for disk file actuator |
| 03/03/1987 | US4647992 Combined magnetic channel signal sensor and servo control track following system and method |
| 02/25/1987 | EP0211339A2 Apparatus for recording and/or reproducing with a plurality of rotary heads |
| 02/25/1987 | EP0211099A1 Method for lowering the frictional coefficient of the magnetic head-disk interface in a lubricated magnetic disk system and disk storage system |
| 02/24/1987 | US4646278 Pick-up positioning apparatus for data playback apparatus |
| 02/24/1987 | US4646182 Carriage assembly for a magnetic disc memory apparatus |
| 02/24/1987 | US4646181 Magnetic head retaining device |
| 02/24/1987 | US4646180 Floating head slider |
| 02/24/1987 | US4646175 Method and apparatus for positioning transducers by digital conversion of analog-type signals |
| 02/17/1987 | US4644514 Head drive control apparatus |
| 02/10/1987 | US4642717 Mechanism for lifting and lowering magnetic head in magnetic recording and reproducing device |
| 02/10/1987 | US4642541 Track following servo for higher density disk files |
| 02/04/1987 | EP0210781A1 Slidable carriage mount for disc memory apparatus |
| 02/04/1987 | EP0210400A1 Magnetic head supporting mechanism for a double surface type flexible disk |
| 02/03/1987 | US4641294 Method and apparatus for performing a memory operation on a fixed length block of data on a memory disk |
| 02/03/1987 | US4641209 Disc type information storage and retrieval system |
| 01/28/1987 | EP0210006A2 Record information reproducing method with content identifiers |
| 01/28/1987 | EP0209853A2 Track jump servo system disc players |
| 01/28/1987 | EP0209692A2 A disk file servo control system with fast reduction of repeatable head position error |
| 01/27/1987 | US4639906 Magnetic recording on tracking controlled grooveless medium having magnetic and capacitance properties |
| 01/27/1987 | US4639804 Head loading system |
| 01/27/1987 | US4639798 Disk drive having two interactive electromechanical control subsystems |
| 01/27/1987 | US4639796 Arrangement for positioning a transducer to at least one track of a tape-shaped recording medium |
| 01/27/1987 | US4639097 Apparatus for the inspection of combined read/write heads of data carrier disks in EDP installations |
| 01/24/1987 | CN85101069A Regeneration-delaying method |
| 01/21/1987 | EP0209140A2 A method of measuring a minute flying height of an object and a magnetic disk apparatus |
| 01/21/1987 | EP0208815A1 Dual transducer assembly with linear adjustment |
| 01/20/1987 | US4638379 Tracking control system for a video tape recorder |
| 01/20/1987 | US4638376 Rotary recording medium which is playable in still picture, slow-motion and normal reproduction modes |
| 01/14/1987 | EP0208605A2 Improved magnetic head supporting device |
| 01/14/1987 | EP0208280A2 Positioning device for objects with a low mass, in particular magnetic heads, with regard to a second object, and magnetic-disc memory with such a device |
| 01/14/1987 | EP0208054A2 A magnetic record disk and a magnetic record disk file |
| 01/13/1987 | US4637004 Optical data reading device |
| 01/13/1987 | US4637003 Amplitude modulated high frequency signal detection device |