| Patents for G11B 17 - Guiding record carriers not specifically of filamentary or web form, or of supports therefor (20,090) |
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| 07/03/1990 | CA1271258A1 Device for determining a centring error of a round track-shaped information structure in an optical record carrier relative to the axis of rotation of a turntable supporting the record carrier, apparatus provided with such a device, and record carrier... |
| 06/28/1990 | WO1990007182A1 Method of retrieving data carriers from data-carrier archives |
| 06/28/1990 | DE3843216A1 Verfahren zum bereitstellen von datentraegern in automatischen datentraegerarchiven A method for providing of data medium in automatic datentraegerarchiven |
| 06/27/1990 | EP0375182A2 Optical disk insertion apparatus |
| 06/27/1990 | EP0197159B1 Optical disc player |
| 06/27/1990 | CN1008565B Disc player |
| 06/26/1990 | US4937690 Automatic exchanging system for storage and retrieval of magnetic tape cassettes |
| 06/26/1990 | US4937684 Information recording-reproducing apparatus |
| 06/21/1990 | DE3942119A1 Magnetplatten-antriebsvorrichtung A magnetic disk driving device |
| 06/13/1990 | EP0372638A1 Turntable assembly, method of manufacturing a turntable assembly, and disc player comprising a turntable assembly |
| 06/13/1990 | EP0246298B1 A storage disk drive mechanism and hub member |
| 06/13/1990 | CN1043031A Disc memory device |
| 06/12/1990 | US4933927 Disk centering method and apparatus for centering disks for disk drives |
| 06/12/1990 | US4933793 Magnetic disc drive |
| 06/12/1990 | US4933785 Disk drive apparatus using dynamic loading/unloading |
| 06/06/1990 | EP0371707A2 Optical disk handling apparatus with flip latch |
| 06/05/1990 | US4931891 Magnetic disc plack loading mechanism with shutter opening and closing mechanism |
| 06/05/1990 | CA1270059A1 Method of detecting the position of an optical head |
| 05/31/1990 | WO1990005974A1 High density disc drive with magnetic clutch and a removable cartridge |
| 05/30/1990 | EP0370722A2 Disk-storage device |
| 05/29/1990 | US4930029 Magnetic disk apparatus |
| 05/24/1990 | CA2003640A1 Disk-storage device |
| 05/23/1990 | EP0369978A2 Loading, unloading and centering device for discs with different diameters |
| 05/23/1990 | EP0369601A2 Multi-disc storage player |
| 05/23/1990 | EP0369367A1 Device and process for short circuit arc welding |
| 05/22/1990 | US4928271 Holder for discs of different diameters |
| 05/22/1990 | US4928196 Magnetic recording device using circumferentially offset heads with double sided media |
| 05/22/1990 | US4928194 Anti-static support for a cartridge in a disk drive |
| 05/17/1990 | WO1990005363A1 Magnetic recording apparatus |
| 05/16/1990 | EP0368242A2 An optical disk apparatus |
| 05/15/1990 | US4926410 Disk |
| 05/15/1990 | US4926406 Disk player |
| 05/15/1990 | US4926404 Disk playing method for disk player |
| 05/14/1990 | CA2000477A1 High density disk drive with magnetic clutch and a removable cartridge |
| 05/09/1990 | EP0367510A2 Apparatus and method for near contact magnetic recording |
| 05/09/1990 | EP0367370A2 Disc player having automatic disc ejection, and method of providing same |
| 05/03/1990 | WO1990004845A1 A record player |
| 05/02/1990 | EP0366452A2 Disk tray |
| 05/02/1990 | EP0366311A2 Record disk file |
| 05/01/1990 | US4922476 Playing method for disk player |
| 05/01/1990 | US4922406 Labyrinth seal in disk storage drive |
| 05/01/1990 | US4922354 Disk drive air filter |
| 05/01/1990 | US4922353 Apparatus for loading a tape cartridge for a magnetic instrument |
| 05/01/1990 | US4922351 Optical information recording and reproducing apparatus |
| 04/24/1990 | US4920437 Disc clamping device |
| 04/17/1990 | US4918553 Recording/reproducing apparatus for a disk cassette |
| 04/17/1990 | US4918548 Cartridge loader |
| 04/17/1990 | US4918545 Disk clamp for rigid disk file without radial load |
| 04/17/1990 | CA1267974A1 Optical information recording and reproducing apparatus |
| 04/12/1990 | DE3932556A1 Disc loading system for CD player - has linkage mechanism that adjusts to support different size disc |
| 04/10/1990 | US4916687 Apparatus for mounting and rotating an optical card for recording and/or reproducing information |
| 04/03/1990 | US4914647 Optical disc player |
| 03/27/1990 | US4912582 Floppy disk drive system with improved record/playback heads |
| 03/27/1990 | US4912581 Magazine for supporting a plurality of magnetic disc packs each housing a magnetic disc |
| 03/27/1990 | US4912575 Apparatus for automatically changing an information memory medium |
| 03/27/1990 | US4911776 Method of manufacturing a mold for an optically readable information disc |
| 03/22/1990 | WO1990003031A1 Recording/reproducing apparatus |
| 03/22/1990 | DE3925902A1 Automatic cleaning of read write heads in optical disc drive - has cleaning cassette with brushes automatically loaded into position against head |
| 03/21/1990 | EP0358780A1 Disk magazine and disk loading device |
| 03/21/1990 | CN2054931U Laser disc with ring shape set-off |
| 03/20/1990 | US4910629 Magnetic head |
| 03/20/1990 | US4910624 Optically readable disk with self centering hub |
| 03/20/1990 | US4910620 Thermal compensation structure for a disk pack module |
| 03/20/1990 | US4909640 Ball bearing |
| 03/15/1990 | DE3830300A1 Compact-disc jukebox |
| 03/14/1990 | EP0358243A2 Multidisk player |
| 03/13/1990 | US4907889 Video cassette library retrieval and sequencing system |
| 03/07/1990 | EP0357171A2 Optical disc player and method for its manufacture |
| 03/07/1990 | EP0356984A2 Disc player |
| 03/06/1990 | US4907161 Batch mailing system |
| 03/06/1990 | US4907112 Recording/reproducing head providing evenly distributed contact pressure with magnetic medium |
| 02/22/1990 | WO1990001771A1 Double-sided magnetic recording device supporting two transducers in fixed relation |
| 02/21/1990 | EP0355011A2 Disc magazine |
| 02/20/1990 | US4903252 Disc file apparatus |
| 02/20/1990 | US4903156 Magnetic recording and/or reproducing apparatus having a head support mechanism for suppressing vibration of magnetic heads |
| 02/20/1990 | US4903155 Disc drive |
| 02/20/1990 | US4903154 Automatic diskette stack loader |
| 02/13/1990 | US4901303 Photo-electro-magnetic disc device |
| 02/13/1990 | US4901176 Magnetic head support assembly for floppy device |
| 02/13/1990 | US4901174 Disk cassette loading and ejecting mechanism for a magnetic disk apparatus |
| 02/13/1990 | US4901173 Apparatus for coupling record disk to disk drive |
| 02/13/1990 | US4901172 Recording/playback apparatus with auto-changer |
| 02/07/1990 | EP0353566A2 Read/write head carrying mechanism for floppy disk drive |
| 02/07/1990 | EP0353502A2 System and apparatus for automatic management of texts recorded on magnetic tapes, or the like, in a safety room protected against damaging or destructive events |
| 02/06/1990 | US4899331 Random reproducing system for disk player |
| 02/06/1990 | US4899330 Adaptor for mini CD |
| 02/06/1990 | US4899326 Magazine-housed disk player |
| 02/06/1990 | US4899244 Disk cartridge with hub seal |
| 02/06/1990 | US4899238 Cartridge shutter actuating device in recording and/or reproducing apparatus |
| 02/06/1990 | US4898397 Segmented disk clamp |
| 01/31/1990 | EP0352918A2 A disk cartridge |
| 01/30/1990 | CA1265243A1 Recording and/or reproducing apparatus for flexible magnetic disks |
| 01/25/1990 | WO1990000798A1 Clamping mechanism for computer hard disks |
| 01/24/1990 | EP0351837A2 Read/write head slider with medium access aperture |
| 01/24/1990 | EP0351470A2 Automatic disk exchange device |
| 01/23/1990 | US4896312 Cartridge loading apparatus |
| 01/23/1990 | US4896232 Chucking mechanism for floppy disk drive |
| 01/18/1990 | DE3914130A1 Multi-compartment magazine record player |
| 01/18/1990 | DE3914128A1 Multi-compartment magazine record player |
| 01/17/1990 | EP0351221A2 Apparatus including dual carriages for storing and retrieving information containing discs and method |