| 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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| 09/05/1989 | US4864450 Protective cover for a magnetic tape cassette |
| 09/05/1989 | US4864449 Cassette for tape recording and/or reproducing apparatus accommodating cassettes of different sizes |
| 09/05/1989 | US4864448 Tape cassette |
| 09/05/1989 | US4864442 Magnetic read/write apparatus |
| 09/05/1989 | US4864122 Joint inspection apparatus for determining the size of a gap |
| 09/05/1989 | US4863809 Surface treatment for sliders and carbon coated magnetic media |
| 09/05/1989 | US4863116 Guide member in a cassette for data carrying material |
| 09/05/1989 | US4863115 Tape test cassette |
| 09/05/1989 | US4863114 Magnetic tape cartridge identification |
| 09/05/1989 | US4863111 Film reel with film-threading tensioning flange |
| 09/05/1989 | US4863110 Magnetic tape winding method and apparatus |
| 09/05/1989 | US4863039 Apparatus and method for handling a flexible disk for testing |
| 09/05/1989 | US4863031 Disc cartridge having peripheral disc support |
| 09/05/1989 | US4863026 Storage cases for information recording devices |
| 09/05/1989 | US4863025 Package for recording media |
| 09/05/1989 | CA1259131A1 Floppy disc jacket |
| 09/05/1989 | CA1259130A1 Magnetic tape cassette |
| 09/05/1989 | CA1259061A1 Ring for sealing and storage of a spool of recording tape |
| 08/30/1989 | EP0330292A2 Combination of a storage cassette and an element for receiving and holding an information disc, and a storage cassette and element for receiving and holding for use in said combination |
| 08/30/1989 | CN1035200A Information recording media |
| 08/29/1989 | US4862448 Disc cartridge and casing therefor |
| 08/29/1989 | US4862305 Optical system for magnetic tape end detection |
| 08/29/1989 | US4861437 Method of manfacturing a mould and providing it with a backing and mould manufactured according to the invention |
| 08/29/1989 | US4861226 Apparatus for stacking articles and feeding the stacks to a discharge site |
| 08/29/1989 | US4861086 Apparatus for taking up and depositing spools |
| 08/29/1989 | US4860967 Magnetic-tape cassette and tape-pressure member for use in such a cassette |
| 08/23/1989 | EP0329230A1 Storage case for a plurality of record-carrier discs, in particular optical discs |
| 08/23/1989 | EP0329122A2 Method for affixing information on read-only optical disks |
| 08/23/1989 | CN2043407U Cassette tape box with movable mistaking erasure prevention |
| 08/22/1989 | US4860278 Optical recording carrier, and recording-reading apparatus, and recording-reading process, employing the same |
| 08/22/1989 | US4860143 Temperature/humidity indicator for a floppy disk cassette |
| 08/22/1989 | US4860142 Computer disk adjustable write protect device |
| 08/22/1989 | US4860128 Recordable data device having identification symbols formed thereon and cooperating data processing system having registering symbols |
| 08/22/1989 | US4860127 Magnetic disk cartridge with erasure-preventing device |
| 08/22/1989 | US4858849 Tape cassette housing |
| 08/22/1989 | US4858848 Magnetic tape cassette |
| 08/22/1989 | US4858841 Apparatus for loading tape into a cassette |
| 08/22/1989 | US4858808 Tape handling apparatus |
| 08/22/1989 | US4858265 Cleaning apparatus for magnetic tape |
| 08/15/1989 | US4858221 Preformatted information medium and optical reader device |
| 08/15/1989 | US4858051 System for the recording and/or playback of signals |
| 08/15/1989 | US4858050 Structurally rigid disk cartridge adaptable to eliminating relative axial cartridge and/or transducer head loading/unloading movement |
| 08/15/1989 | US4858043 Magnetic head assembly for a flexible magnetic disk drive unit |
| 08/15/1989 | US4857828 Method and apparatus for detecting presence of objects |
| 08/15/1989 | US4857160 High vacuum processing system and method |
| 08/15/1989 | US4856653 Storage container for compact cassettes |
| 08/15/1989 | US4856304 Security device for cassette tape decks or the like |
| 08/15/1989 | US4856213 Combination picture frame and video cassette holder |
| 08/15/1989 | CA1258528A1 Magnetic tape cassette with improved spring member |
| 08/15/1989 | CA1258527A1 Tape cassette reel |
| 08/10/1989 | WO1989007317A1 Public video recording system |
| 08/09/1989 | EP0327098A2 A tape cartridge |
| 08/09/1989 | EP0327050A2 Center hub holder tape |
| 08/09/1989 | EP0327008A2 Magnetic disk cartridge |
| 08/09/1989 | CN1034631A Locking/unlocking means for cassette and cassette having this means |
| 08/09/1989 | CN1034628A Information recording discs |
| 08/08/1989 | US4855857 Magnetic disc cartridge with spindle abutment plate |
| 08/08/1989 | US4855856 Cleaning device for vhs video casette players |
| 08/08/1989 | US4855850 Disk drive apparatus with disk rotating means |
| 08/08/1989 | US4854569 Apparatus for taking out flexible work |
| 08/08/1989 | US4854519 Magazine for containing strip of recording medium |
| 08/08/1989 | US4854518 Hub setting device |
| 08/08/1989 | US4854517 Apparatus having means for unloosenly winding a tape to reels of a tape cassette |
| 08/08/1989 | US4854001 Diskette cleaner |
| 08/02/1989 | EP0326369A2 A magnetic recording and reproducing apparatus |
| 08/02/1989 | EP0326342A2 Information recording medium, production process and molding die for substrate therefor |
| 08/02/1989 | EP0325664A1 Self-locking hub assembly for a compact audio tape cassette and method for assembly |
| 08/01/1989 | US4853926 Split carrier for data storage disks |
| 08/01/1989 | US4853925 Information memory unit |
| 08/01/1989 | US4853922 Method of cleaning the surface of an optical disc and a cleaning device |
| 08/01/1989 | US4853817 Magnetic disk cartridge |
| 08/01/1989 | US4853816 Casing for cassette magnetic tape |
| 08/01/1989 | US4852739 Transport/display package for magnetic tape cassettes |
| 08/01/1989 | US4852327 Machine for assembling a container |
| 08/01/1989 | CA1258122A1 Magnetic disk cassette having internal biasing ribs |
| 08/01/1989 | CA1258121A1 Stable stretched surface recording medium |
| 07/26/1989 | EP0325399A2 Information recording media |
| 07/26/1989 | CN2041850U Rewind box of video tape |
| 07/26/1989 | CN2041849U Dampproof box for household video tape |
| 07/25/1989 | US4852078 Impact-absorbing buffer element for optical disk carrier |
| 07/25/1989 | US4851948 Disk cartridge with shutter biasing device |
| 07/25/1989 | US4851947 Improved disk cartridge including a shutter for opening and closing head entry apertures |
| 07/25/1989 | US4851945 Demagnetizing device having an oscillating permanent magnet |
| 07/25/1989 | US4851929 Recorder/player device with stationary recording medium and constant speed signal head drive |
| 07/25/1989 | US4850791 Flow processing system |
| 07/25/1989 | US4850547 Magnetic tape cassette |
| 07/25/1989 | US4850485 Cartridge magazine |
| 07/19/1989 | EP0324458A2 Magnetic tape cassette having improved erasure preventing device |
| 07/18/1989 | US4849959 Split disk carrier with locking mechanism |
| 07/18/1989 | US4849958 System for recording/reading information on/from a disc, comprising a disc cassette and an apparatus |
| 07/18/1989 | US4849844 Disk cartridge |
| 07/18/1989 | US4849839 Magnetic tape recording and/or reproducing apparatus rotary head assembly having sweeping device |
| 07/18/1989 | US4849618 Magnetic medium for magnetic embossment and magnetic card using the same |
| 07/18/1989 | US4848698 Method for writing and means for reading position-indicating markers on tape |
| 07/13/1989 | WO1989006420A1 Contoured head assembly for use in a cassette loaded recorder |
| 07/13/1989 | WO1989006176A1 Lathe |
| 07/12/1989 | EP0323576A2 Tape cassette loading mechanism in tape player |
| 07/11/1989 | US4847826 Disk cartridge |
| 07/11/1989 | US4847718 Cassette with erasing means |
| 07/11/1989 | US4847717 Handling of a tape cassette |