| Patents for G11B 17 - Guiding record carriers not specifically of filamentary or web form, or of supports therefor (20,090) |
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| 04/24/1991 | EP0423986A2 Input/output communication between autochanger and drive |
| 04/23/1991 | US5010536 Cartridge handling system |
| 04/23/1991 | US5010484 Disc guide mechanism for automotive disc player |
| 04/23/1991 | US5010428 Tilting optical disc loading mechanism with automatic centering and ejection of discs of different diameters |
| 04/23/1991 | US5010427 Apparatus for positioning a magnetic disk on a disk drive |
| 04/18/1991 | WO1991005334A1 Disc drive with spindle motor rotor configuration in a removable disc cartridge |
| 04/16/1991 | US5008874 Recording and/or reproducing apparatus |
| 04/16/1991 | US5008552 Data recording and reproducing apparatus for an optical card |
| 04/11/1991 | CA2027197A1 Magnetic read and write head assembly |
| 04/09/1991 | US5007040 Magnetic recording and/or reproducing apparatus having a retaining mechanism for a disc-shaped magnetic record bearing medium |
| 04/09/1991 | US5006945 Disk player having dual-side playback capability |
| 04/09/1991 | US5006944 Cassette loading device with a flat-cut cam follower |
| 04/09/1991 | US5006943 Disk storage drive |
| 04/09/1991 | US5006942 Rigid magnetic data storage disk assembly with grooved spacer |
| 04/03/1991 | EP0289555B1 A disk cassette loading/unloading mechanism with rigid shutter opening device |
| 04/02/1991 | US5005098 Disk drive with stabilizer block for insuring stable contact between a read/write head and a flexible recording medium |
| 04/02/1991 | US5005093 Recording and/or reproducing apparatus with cartridge lock mechanism |
| 04/02/1991 | US5005092 Shutter opening device |
| 04/02/1991 | US5005088 Recording and/or reproducing apparatus adapted to minimize electrical energy consumption |
| 04/02/1991 | CA1282492C Disk file with in-hub motor |
| 03/27/1991 | EP0419022A2 Disk storage apparatus |
| 03/27/1991 | EP0418996A2 Magazine loading disk player |
| 03/27/1991 | EP0288544B1 A disk cassette loading/unloading mechanism with flexible shutter opening device |
| 03/27/1991 | CN1050281A Holding device for a record in a magneto-optical recording-and/or reproducing-set |
| 03/27/1991 | CN1012229B Positioning transportation tape for positioning reproducing many of disc records and simple gramophone |
| 03/26/1991 | US5003530 Apparatus for adapting the diameter of a disk-like recording medium |
| 03/26/1991 | US5003419 Magnetic head supporting mechanism |
| 03/21/1991 | WO1991003812A1 Compact disc holding mechanism for coin operated phonograph |
| 03/20/1991 | EP0418040A1 Apparatus for selectively playing a plurality of discs enclosed therein |
| 03/20/1991 | EP0417886A2 Disk storage/select player |
| 03/19/1991 | US5001700 Disk clamp and centering apparatus for a beam addressable disk drive system |
| 03/19/1991 | US5001688 Apparatus for playing record carriers using playing frequency ranking |
| 03/19/1991 | US5001667 Optical storage device |
| 03/19/1991 | US5001582 Apparatus for automatically changing an information storage medium |
| 03/19/1991 | US5001581 Disk storage drive |
| 03/19/1991 | CA1281814C Apparatus using disc-shaped record bearing medium |
| 03/13/1991 | EP0416797A2 Loading apparatus for a disc-shaped record medium |
| 03/13/1991 | EP0239616B1 Apparatus including a mechanism housing and a protective cover therefor |
| 03/12/1991 | US4999725 Read/write head carrying mechanism for floppy disk drive |
| 03/12/1991 | US4999724 Disk drive having an electrically isolated disk stack |
| 03/12/1991 | US4998618 Storage case for optical discs |
| 03/07/1991 | WO1991003048A1 Process for adjusting a positioning device |
| 03/07/1991 | WO1991003047A1 Record holder for a magneto-optical recording and/or playback device |
| 03/06/1991 | EP0415543A2 Half-height magneto-optic disk drive |
| 03/06/1991 | CN1049738A Method for adjustment of positioning device |
| 03/05/1991 | US4998232 Optical disk handling apparatus with flip latch |
| 03/05/1991 | US4998175 Transducer-to-medium stabilizing device having a static pressure releasing arrangement for maintaining the transducer in a stable contact relationship with a recording medium |
| 03/05/1991 | US4998174 Floating type magnetic head assembly |
| 02/28/1991 | DE4011134A1 Juke box type selection equipment with multiple headphones - uses local operator selection keyboard and headphones connected to remote record retrieval and playback equipment |
| 02/28/1991 | DE3927901A1 Operating mechanism for magazine type players - uses combination of wheels and levers to transport recording devices in cassette or drawer e.g. compact disc |
| 02/28/1991 | DE3927889A1 Disc positioning equipment for juke box - uses scanner to locate start and end of reference marks to determine centre of mark in conjunction with 2nd scanner and control circuitry |
| 02/27/1991 | EP0414579A2 A carriage servo unit in a disk player |
| 02/26/1991 | US4996680 Automatic changing apparatus for a recording medium |
| 02/19/1991 | US4995027 Automatic loading disc player |
| 02/19/1991 | US4994930 Mechanism for actuating a protective shutter provided on a cartridge accommodating a disk |
| 02/12/1991 | US4993010 Laser disk cassette selecting system |
| 02/12/1991 | US4993009 Opto-magnetic recording apparatus with a bias magnetic field generating means movable parallel to a recording surface of a recording medium |
| 02/12/1991 | US4993008 Multiple-disk player with automatic fade-out function |
| 02/12/1991 | US4992896 Cartridge shutter actuating device in recording and/or reproducing apparatus |
| 02/12/1991 | US4992893 Alignment disk for magnetic disk driving apparatus and method and apparatus for verifying tracking error of the magnetic disk driving apparatus |
| 02/12/1991 | US4992758 Power amplifying apparatus for optical disk apparatus |
| 02/06/1991 | EP0411670A2 Disk cartridge |
| 02/06/1991 | EP0293494B1 Memorizing device with moving information carriers |
| 02/05/1991 | US4991044 Disk drive assembly with an auto-ejector driven by the assembly motors |
| 01/29/1991 | US4989197 Apparatus for playing cartridge-stored disc |
| 01/29/1991 | US4989191 Data processing system with mixed media memory packs |
| 01/29/1991 | US4989107 Microfloppy disk drive with centering mechanism |
| 01/29/1991 | US4989106 Cassette loading device with pull-in mechanism |
| 01/23/1991 | EP0409816A2 Optical system for aiming apparatus using a laser diode |
| 01/23/1991 | CN2070025U Fixer for release lever of video tape |
| 01/16/1991 | EP0407398A1 Removable cartridge disc drive with radial arm voice coil actuator |
| 01/10/1991 | WO1991000567A1 Library equipment |
| 01/09/1991 | EP0407140A2 Disc drive apparatus |
| 01/09/1991 | EP0407051A2 Disc loading apparatus |
| 01/09/1991 | EP0406950A1 Record player |
| 01/08/1991 | US4984228 Dual drive changer for records |
| 01/08/1991 | US4984225 System for applying magnetic field to opto-magnetic memory |
| 01/08/1991 | US4984121 Magnetic recording/reproduction apparatus having negative and positive pressure generating members for deforming a flexible magnetic disk |
| 01/08/1991 | US4984096 Video disk, disk player and method for long play mode constant angular velocity playback |
| 01/02/1991 | EP0404918A1 Method of retrieving data carriers from data-carrier archives |
| 01/01/1991 | US4982399 Information processing apparatus |
| 01/01/1991 | US4982299 Linear motor locking mechanism in a disc unit |
| 01/01/1991 | US4981409 Cartridge auto changer |
| 12/27/1990 | EP0404589A2 Disc drive apparatus |
| 12/25/1990 | US4980883 Disk tray |
| 12/25/1990 | US4980880 Method and apparatus for simultaneously reading both sides of an optical storage disk |
| 12/19/1990 | EP0403266A2 Magneto-optical recording and/or reproducting apparatus |
| 12/18/1990 | US4979161 Disc-record player with a loading device for loading a disc into the record player |
| 12/18/1990 | US4979160 Front loading disk player |
| 12/18/1990 | US4979057 Automatic cassette loading and reproducing apparatus |
| 12/18/1990 | CA1278094C Method and apparatus for correcting angular deviation of optical recording medium |
| 12/18/1990 | CA1278091C Disc cartridge |
| 12/13/1990 | DE3943332A1 Twin disc player using single drive motor and gearing - controlling position of playback device, movement of disc carriers and operation of shutter |
| 12/08/1990 | WO1990015497A1 Method and devices for transmitting to subscribers from a central server connected to a high throughput digital telecommunication network information recorded on digital disks |
| 12/08/1990 | CA2058439A1 Method and devices for transmitting to subscribers from a central server connected to a high throughput digital telecommunication network information recorded on digital disks |
| 12/06/1990 | DE4017633A1 Automatic cassette selection equipment for optical discs - uses electronically controlled transporter to collect cassette from magazine and deliver to play back device |
| 12/05/1990 | EP0400949A2 Disc loading apparatus |
| 12/05/1990 | EP0181937B1 Apparatus for reproducing recorded information from recording disk |
| 12/04/1990 | US4975794 Bernoulli effect transducer coupler |
| 11/29/1990 | WO1990014661A1 Non-contact magnetic head assembly for a flexible medium disk drive |