| 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) |
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| 05/31/1988 | US4748526 Head cleaning cassette for magnetic tape cassette apparatus |
| 05/31/1988 | US4747620 Security card and security card blank |
| 05/31/1988 | US4747563 Tape cassette reel |
| 05/31/1988 | US4747554 Apparatus for winding magnetic tape |
| 05/31/1988 | US4747484 Container for video and sound recording media |
| 05/26/1988 | DE3639818A1 Audio-tape cassette for small dictating machine |
| 05/25/1988 | EP0268443A1 Tape transporting device |
| 05/25/1988 | EP0268390A2 Tape transporting device |
| 05/25/1988 | CN87201935U Diskette package holding device |
| 05/24/1988 | US4747007 Spring means for biasing a tape against a head inserted in a cassette |
| 05/24/1988 | US4747001 Disk cartridge and device for driving the same |
| 05/24/1988 | US4746575 Process for lubricating accessories of cassettes containing magnetic tapes |
| 05/24/1988 | US4746013 Disc cartridge with releasable locking means |
| 05/24/1988 | US4745690 Method of replenishing and/or preparing treating liquids |
| 05/19/1988 | WO1988003696A1 Floppy disk |
| 05/19/1988 | WO1988003692A1 Cleaning disk |
| 05/19/1988 | DE3736473A1 Process and apparatus for fitting anti-friction liners in magnetic-tape cassettes |
| 05/18/1988 | EP0267644A1 System for recording/reading information on/from a disc, comprising a disc cassette and an apparatus |
| 05/18/1988 | EP0267616A2 A cassette reel |
| 05/18/1988 | EP0267547A1 Magazine for disc-shaped record carriers |
| 05/18/1988 | CN87212243U Combined magnetic tape |
| 05/18/1988 | CN87107571A Elongated strip storage apparatus and recorder tape duplicator system utilizing enoless tape stored in storage apparatus |
| 05/17/1988 | US4745508 Plastic supply tape guide for videocassette |
| 05/17/1988 | US4745500 Disk drive for cartridge disks |
| 05/17/1988 | US4744833 Electrostatic removal of contaminants |
| 05/17/1988 | US4744530 Cartridge door-latching mechanism |
| 05/17/1988 | US4744528 Collapsible reel |
| 05/17/1988 | US4744463 Storage display tray |
| 05/11/1988 | EP0266983A2 Limited play tape cassette system |
| 05/11/1988 | EP0266902A1 Disk package |
| 05/11/1988 | EP0266794A2 Improved sliding shutter arrangement for disk cassette |
| 05/11/1988 | EP0266781A1 Sliding shutter mechanism for disk cassette |
| 05/11/1988 | EP0266747A2 Information memory medium |
| 05/11/1988 | EP0266746A2 Information memory medium |
| 05/11/1988 | EP0266366A1 Release tool |
| 05/11/1988 | CN87202228U Record and lor replay device |
| 05/10/1988 | US4744074 Disk-type recording medium |
| 05/10/1988 | US4743994 Arrangement for positioning a recording disc of a disc cartridge |
| 05/10/1988 | US4743993 Plate spring assembly for a magnetic recording disk cartridge |
| 05/10/1988 | US4743992 Magnetic tape cassette |
| 05/10/1988 | US4743990 Test cassette for measuring capstan azimuth angles |
| 05/10/1988 | US4743989 Plural magnetic disk assembly |
| 05/10/1988 | US4743984 Scheme for encoding a magnetic tape cassette |
| 05/10/1988 | US4743983 Recovering data from magnetic recording tape adhered after long storage |
| 05/10/1988 | US4743745 Optical memory card reader |
| 05/10/1988 | US4743490 Counterfeit-resistant magnetic recording tape |
| 05/10/1988 | US4743077 Magnetic tape cassette box |
| 05/05/1988 | WO1988003312A1 Cassette locking system |
| 05/05/1988 | WO1988003311A1 Flexible optical information recording medium and method of producing the same |
| 05/05/1988 | WO1988001783A3 Production of pre-recorded cassettes |
| 05/04/1988 | EP0266101A1 Composite memory device |
| 05/04/1988 | EP0265984A1 Optically readable record carrier for recording information, method and apparatus for manufacturing such a record carrier, apparatus for recording information on such a record carrier, and apparatus for reading information recorded on such a record carrier |
| 05/04/1988 | EP0265897A2 Disk handling system and apparatus |
| 05/04/1988 | EP0265896A2 Carrier for data storage disk |
| 05/03/1988 | US4742421 Magnetic recording disc having tensioned and elastically-supported recording surface |
| 05/03/1988 | US4742420 Magnetic disk with a porous substrate |
| 05/03/1988 | US4742419 Hub assembly for a recording disc cartridge |
| 05/03/1988 | US4742418 Tape cassette with means for limiting movement of reel brake |
| 05/03/1988 | US4742417 Magnetic tape cassette with snap coupled U-shaped slide guard |
| 05/03/1988 | US4742416 Magnetic tape cassette with U-shaped slide guard |
| 05/03/1988 | US4742415 Magnetic tape cassette having a guided reel brake pawl |
| 05/03/1988 | US4741496 Tape cartridge |
| 05/03/1988 | CA1236214A1 Videocassette wear button |
| 04/27/1988 | EP0265167A2 Disk player with disk magazine |
| 04/26/1988 | US4740949 Laser access apparatus for optical disk drive |
| 04/26/1988 | US4740948 Disc cartridge |
| 04/26/1988 | US4740938 Apparatus for rapid reproduction of information from a record carrier |
| 04/26/1988 | US4740937 Optical magnetic information recording and reproducing apparatus with separate supporting members for supporting disc clamper and magnetic field biasing device |
| 04/26/1988 | US4740857 Accurate,without malfunction; for audio or video tape recording apparatus |
| 04/26/1988 | US4740856 Tape cassette and cassette recorder using the same |
| 04/26/1988 | US4739949 Wheel locks for video tape cassettes |
| 04/26/1988 | CA1235809A1 Hinged visor-type door for tape cassette |
| 04/21/1988 | WO1988002916A1 Video cassettes |
| 04/20/1988 | EP0264237A2 Disk cartridge |
| 04/19/1988 | US4739434 Disk cartridge having a hub including a stepped portion |
| 04/19/1988 | US4739433 Method of cleaning magnetic recording disk of magnetic recording disk cartridge |
| 04/19/1988 | US4739432 Lid assembly for magnetic tape cassette |
| 04/19/1988 | US4739426 Disk drive system |
| 04/19/1988 | US4739425 Magnetic disk memory comprising a membrane spring-braced bearing of a disk pack which is rotatably mounted at both ends |
| 04/19/1988 | US4738408 Tape winding apparatus and method |
| 04/19/1988 | US4738361 Apparatus for storing recording media |
| 04/19/1988 | CA1235491A1 Disc package |
| 04/19/1988 | CA1235490A1 Magnetic-tape cassette |
| 04/19/1988 | CA1235489A1 Magnetic tape cassette |
| 04/19/1988 | CA1235488A1 Magnetic tape cassette having automatic brake |
| 04/19/1988 | CA1235487A1 Tape roller for a tape cassette |
| 04/19/1988 | CA1235486A1 Combination of a magnetic-tape cassette and a storage case for the cassette |
| 04/19/1988 | CA1235484A1 Magnetic-tape cassette |
| 04/19/1988 | CA1235396A1 Box |
| 04/13/1988 | EP0263477A2 Dynamic record medium wear monitor |
| 04/13/1988 | EP0263227A1 Container for magnetic-tape cassettes or the like |
| 04/12/1988 | US4737945 Multi-disk player |
| 04/12/1988 | US4737876 Write protect device for a record disk assembly |
| 04/12/1988 | US4737875 Device for preventing obstruction by a tape cassette cover |
| 04/12/1988 | US4737809 Static electricity eliminating mechanism for camera |
| 04/12/1988 | US4736904 Tape guide means for a tape to be transported, in particular in a magnetic tape cassette or in a tape transport apparatus |
| 04/12/1988 | US4736903 Self-locking hub assembly for a compact audio tape cassette and method for assembly |
| 04/12/1988 | US4736861 Butadiene-propylene copolymer bumpers |
| 04/12/1988 | US4736845 "Brake/hold down" plug for computer tape reel closure |
| 04/12/1988 | CA1235106A1 Magnetic tape cassette |