| Patents for G11B 23 - Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus (25,121) |
|---|
| 04/08/1980 | US4196873 Two tape-cartridge type magnetic-tape recording/reproducing apparatus |
| 04/08/1980 | US4196806 Case-type storage box for sound and/or video recording tape |
| 04/01/1980 | US4195844 Audiovisual card reproducing device |
| 04/01/1980 | US4195797 Tape cassette |
| 04/01/1980 | US4195796 Tape cassette |
| 04/01/1980 | US4195733 Shipping and storage container |
| 04/01/1980 | CA1074916A1 Arrangement for compensating duty factor variations in an optical video disc |
| 03/25/1980 | US4195320 Record track identification and following |
| 03/25/1980 | US4194636 Bracket assembly |
| 03/19/1980 | EP0008690A1 Flexible disk pack assembly |
| 03/19/1980 | EP0008598A1 Cleaning and lubricating compositions |
| 03/18/1980 | US4194228 Magnetic disc housing with means to prevent radial disc shift |
| 03/18/1980 | US4194225 Housing for disk drive unit |
| 03/18/1980 | US4193497 Storage and shipping container |
| 03/18/1980 | CA1073884A2 Tape cassette |
| 03/04/1980 | US4191984 Tape cassette |
| 03/04/1980 | US4191979 Device for extracting and positioning video tape from a cassette to around a slit head drum |
| 03/04/1980 | US4191345 Tape cassette |
| 03/04/1980 | US4191292 Container for interchangeable tape cassette |
| 03/04/1980 | CA1073098A1 Magnetic recording control circuit |
| 03/04/1980 | CA1072938A1 Tape cassette |
| 02/26/1980 | US4190870 Disk drive assembly |
| 02/26/1980 | CA1072678A1 Cleaning jacket |
| 02/26/1980 | CA1072672A1 Magnetic position marker for a tape recorder |
| 02/20/1980 | EP0008001A1 Resilient shielding element, particularly for magnetic tape cassettes |
| 02/19/1980 | US4189115 Auto-loading magnetic tape |
| 02/19/1980 | US4189114 Fast rewinding device for cassette tapes |
| 02/12/1980 | US4188650 Diskette with access cover means |
| 02/12/1980 | US4188646 Sectorized data path following servo system |
| 02/12/1980 | US4187998 Tape cassette |
| 02/12/1980 | CA1071607A1 Tape cassette |
| 02/06/1980 | EP0007540A1 Container for a magnetic recording tape cassette |
| 02/05/1980 | US4186891 Endless tape winding device |
| 02/05/1980 | CA1071327A1 Cassette tape recording and/or reproducing apparatus |
| 01/29/1980 | US4186411 Recording and playback modulation method and apparatus |
| 01/29/1980 | US4185793 Cassette using tape-marking elements |
| 01/29/1980 | CA1070830A1 Magnetic tape cleaning and tensioning apparatus |
| 01/29/1980 | CA1070656A1 Method of and apparatus for the tape loading and use of a single turntable in the rendition of a taped program |
| 01/23/1980 | EP0007200A1 Method and apparatus for controlling the reading of information from an information storage medium |
| 01/23/1980 | EP0007138A1 A rigid object pocket with musicassette compartment, for fixing to the inside of automobile doors |
| 01/22/1980 | US4185314 Record disk cartridge having eject spring within cartridge |
| 01/22/1980 | US4185313 Disc memory module dust shield |
| 01/22/1980 | US4185310 Cooling apparatus for spinning magnetic disc memory apparatus |
| 01/22/1980 | US4185308 Enclosed-type magnetic disc recording and/or reproducing apparatus |
| 01/22/1980 | US4185306 Magnetic tape processor having cleaning and evaluating means |
| 01/22/1980 | US4185134 Assembly for adhesively splicing pliable tape ends |
| 01/22/1980 | US4184650 Plastic tape reel |
| 01/22/1980 | US4184631 Device for reading information magnetically coded on a carrier |
| 01/22/1980 | US4184594 Video cassette storage container |
| 01/22/1980 | CA1070261A1 Process for producing a stamper for videodisc purposes |
| 01/15/1980 | US4184184 Cartridge with improved access door closing means |
| 01/15/1980 | US4184181 Method and device for tracking video signals on a magnetic tape by detecting phase jumps |
| 01/15/1980 | US4183477 Cassette adapter |
| 01/15/1980 | CA1070010A1 Random selection control system for recording tape cartridges |
| 01/09/1980 | EP0006754A1 Testing apparatus for cassette type tape recorders |
| 01/09/1980 | EP0006631A1 Disk storage apparatus |
| 01/09/1980 | EP0006238A1 Magnetic recording tape cartridge |
| 01/08/1980 | USRE30184 Holders for tape cassettes |
| 01/08/1980 | US4182538 Storage module for tapes |
| 01/01/1980 | US4181272 Tape cassette reel |
| 01/01/1980 | US4181089 Casette tape take-up indicator |
| 12/25/1979 | US4180833 Apparatus and method for reproducing video signals |
| 12/25/1979 | US4180431 Tape splicing device |
| 12/25/1979 | US4180299 Carrier |
| 12/25/1979 | US4180220 Tape cassette |
| 12/25/1979 | US4180181 Tape splicing device and dispenser therefor |
| 12/25/1979 | US4179852 Method and apparatus for polishing floppy discs |
| 12/25/1979 | CA1068817A Magnetic video recording and reproducing apparatus |
| 12/25/1979 | CA1068816A Interchangeable information storage element |
| 12/18/1979 | US4179717 Method and apparatus for video signal recording |
| 12/18/1979 | US4179079 Process and an apparatus for loading a cassette with an endless roll |
| 12/18/1979 | CA1068400A1 Stacked flexible disk structures |
| 12/13/1979 | WO1979001059A1 Grammophone record sleeve |
| 12/12/1979 | EP0005966A1 Positioning servo system |
| 12/11/1979 | US4177899 Disc memory module with stackable dust shield |
| 12/11/1979 | US4177896 Recessed hook and handle for a plastic box |
| 12/04/1979 | US4176804 Reel for tape |
| 12/04/1979 | CA1067616A1 Recording and/or playback apparatus and cassette for such an apparatus |
| 11/27/1979 | US4175999 Apparatus for loading magnetic tape cassettes with magnetic tape |
| 11/27/1979 | US4175659 Cleaning kit |
| 11/27/1979 | CA1067057A1 Tape cassette |
| 11/20/1979 | CA1066549A1 Method of optically producing a reproducible recording of video or other signals |
| 11/13/1979 | US4174247 Apparatus for splicing the ends of magnetic tape wound on spools of the type used in endless tape cartridges |
| 11/13/1979 | US4174130 Record handling device |
| 11/13/1979 | US4174080 Tape cassette |
| 11/13/1979 | US4174039 Recording disk cartridge |
| 11/13/1979 | CA1066411A1 Video disc and method of making the same |
| 11/13/1979 | CA1066406A2 Magnetic record member for use with rotating head magnetic recording apparatus |
| 11/13/1979 | CA1066405A1 Head drum assembly |
| 11/06/1979 | US4173773 Tape end alarm for tape recorder |
| 11/06/1979 | US4173348 Grooved record playback system |
| 11/06/1979 | US4173319 Magnetic tape cassette |
| 10/30/1979 | US4172569 Tape transport system with peripheral belt drive |
| 10/30/1979 | CA1065478A1 Tape player preamplifier circuit |
| 10/23/1979 | CA1065053A1 Leader for magnetic recording tape |
| 10/18/1979 | WO1979000804A1 Box for cassette cases |
| 10/16/1979 | US4171110 Peripheral drive tape winding methods and apparatus |
| 10/16/1979 | CA1064609A1 Magnetic record member for use with rotating head magnetic recording apparatus |
| 10/16/1979 | CA1064453A2 Tape cassette with features for preventing the tape from moving up or downwardly relative to the cassette |
| 10/09/1979 | US4170683 Reflective sense marker for magnetic recording tape |