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