| 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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| 12/12/1991 | WO1991019290A1 Optical information recording/reproducing device using pit edge recording system |
| 12/12/1991 | DE4015566A1 Security disc element for computer - is shaped like floppy disc to lock into drive to prevent use by unauthorised personnel and protect against virus |
| 12/12/1991 | CA2044225A1 Insertable element for the diskette or cassette station of an electronic data processing (edp) equipment |
| 12/12/1991 | CA2038573A1 Cabinet for storing a variety of magnetic or optical storage elements |
| 12/11/1991 | EP0461049A1 Unit for the display and protection of various articles at a selling site |
| 12/11/1991 | CN2090567U Cyclic memory tape |
| 12/10/1991 | US5072438 Optical information recording disc and apparatus for driving the disc |
| 12/10/1991 | US5072326 Disc cartridge and shutter assembly thereof |
| 12/10/1991 | US5072325 Videotape cartridge for use with an adaptor |
| 12/10/1991 | US5071335 Apparatus for two-layered injection moulding |
| 12/10/1991 | US5071084 Reel for magnetic tape |
| 12/04/1991 | EP0459791A2 Tape cassette |
| 12/04/1991 | EP0459743A2 Disc cartridges and methods of manufacturing such cartridges |
| 12/04/1991 | EP0459598A2 Miniaturised tape cartridge drive and data processors |
| 12/04/1991 | EP0459368A2 Tape reel capable of preventing the tape from being damaged |
| 12/04/1991 | CN2090099U Large capcaity circulation belt |
| 12/03/1991 | US5069358 Media case |
| 12/03/1991 | US5069236 Method and apparatus for cleaning disks |
| 11/30/1991 | CA2043395A1 Tape reel capable of preventing the tape from being damaged |
| 11/28/1991 | WO1991018388A1 Integrally molded recyclable video tape cassette |
| 11/28/1991 | WO1991017942A1 Spring-loaded tape spool for belt-driven cartridge |
| 11/27/1991 | EP0458558A2 A data recording cartridge and a flexible magnetic recording medium and a method of manufacturing the same |
| 11/27/1991 | EP0458477A2 Stabilisation of flexible optical media |
| 11/27/1991 | EP0457800A1 An improved box for storing a video cassette |
| 11/26/1991 | US5068761 Disk cartridge with notch for locking a shutter |
| 11/26/1991 | US5068146 Polymerized films, medium related members, and process for making |
| 11/26/1991 | US5067607 Intermittent feed system |
| 11/26/1991 | CA1292568C Tape cassette |
| 11/26/1991 | CA1292567C Leaf spring for video tape cassette |
| 11/21/1991 | EP0457459A2 Minimising focus error in optical information storage systems |
| 11/21/1991 | EP0457368A2 A cassette tape loading machine |
| 11/21/1991 | EP0457156A2 Tape cassette |
| 11/21/1991 | EP0456941A1 Display device for the selling in self service shops of products like discs and cassettes |
| 11/21/1991 | DE4015855A1 Tamper proof security lock for personal computer disc drives - uses modified diskette locking assembly to guarantee system integrity |
| 11/19/1991 | US5067119 Recording medium playing apparatus with automatic tonal response setting function |
| 11/19/1991 | US5067039 High track density magnetic media with pitted optical servo tracks and method for stamping the tracks on the media |
| 11/19/1991 | US5066347 Tape transport apparatus and method of introducing tape thereto |
| 11/19/1991 | US5066046 Method and apparatus for allocating and recording time blocks on VCR tapes |
| 11/19/1991 | US5065955 Tape cassette having outer and inner lids locked by the inner lid |
| 11/19/1991 | US5065548 Surface treating tape cartridge and surface treating machine |
| 11/19/1991 | US5065547 Surface processing machine for hard disks and the like |
| 11/15/1991 | WO1991017680A1 Cardholders incorporating keepers |
| 11/13/1991 | EP0456522A2 Improved display devices |
| 11/13/1991 | EP0456452A2 Magneto-optical disk and method of manufacturing the same |
| 11/13/1991 | EP0455781A1 Debris control in an enclosed magnetic tape cartridge |
| 11/13/1991 | CN1014751B Process for producing information recording discs |
| 11/12/1991 | US5065391 Cartridge case for a disk |
| 11/12/1991 | US5064065 Case for accommodating a magnetic tape cassette |
| 11/06/1991 | EP0455602A1 Holder for audio record carrier envelopes |
| 11/06/1991 | EP0455209A2 Tape cassette |
| 11/05/1991 | US5063558 Disk cartridge |
| 11/05/1991 | US5062579 Reel shaft in magnetic tape cassette recording and/or reproducing |
| 11/05/1991 | US5062535 Side-sliding storage rack for 3480 cartridges |
| 10/30/1991 | EP0454401A2 Floppy disk unit |
| 10/30/1991 | CN1014566B Process for producing magnetic hub |
| 10/30/1991 | CN1014563B Tape loading apparatus |
| 10/30/1991 | CN1014562B Optical disc |
| 10/29/1991 | US5062100 Combination disc cassette and apparatus for removing disc therefrom |
| 10/29/1991 | US5062021 Selectively textured magnetic recording media |
| 10/29/1991 | US5061537 Stability, minimized output variation |
| 10/29/1991 | US5060879 Fixture for attaching recording tape leader to a tape reel |
| 10/29/1991 | CA1291469C Endless microcassette tape |
| 10/23/1991 | EP0453263A1 Method of access to recording medium, and apparatus and method for processing information |
| 10/23/1991 | EP0452536A2 Hybrid nonwoven diskette liner |
| 10/23/1991 | EP0229052B1 A mechanism for joining tape leaders |
| 10/22/1991 | US5060220 Protection circuit for optical disc players |
| 10/22/1991 | US5060219 Recording system for recording only those types of information which are specified by the record carrier |
| 10/22/1991 | US5060106 Disk cartridge including door opening mechanism and improved hub assembly |
| 10/22/1991 | US5060105 Hybrid nonwoven diskette liner |
| 10/22/1991 | CA1291261C Video theater system |
| 10/22/1991 | CA1291100C Tape cassette |
| 10/17/1991 | DE4011955A1 Protecting against unauthorised access to disc drive - inserting unit with in-built key-operated lock resembling floppy disc |
| 10/17/1991 | CA2021511A1 Hybrid nonwoven diskette liner |
| 10/16/1991 | EP0452149A2 Recording/reproducing apparatus |
| 10/16/1991 | EP0452148A2 Tape cassette |
| 10/16/1991 | EP0452014A2 Tape cassettes |
| 10/16/1991 | EP0452008A2 Tape cassette with a lid |
| 10/16/1991 | EP0452007A2 Tape cassette with a lid |
| 10/16/1991 | EP0451582A2 Tape cassette for record carrier, particularly magnetic tape cassette |
| 10/16/1991 | CN1055440A Player, recorder/player and radio cassette tape recorder with display function |
| 10/16/1991 | CN1014368B Anti-friction and no-vibration spool for belt driving cassettee |
| 10/15/1991 | US5058100 Disc magazine |
| 10/15/1991 | US5057961 VCR tape drive test cassette |
| 10/15/1991 | US5057960 Hub for a disk type recording medium |
| 10/15/1991 | US5056735 Video cassette integral actuator/reel lock/spring |
| 10/15/1991 | US5056669 Cassette storage system |
| 10/14/1991 | CA2028631A1 Automatic label attaching apparatus for magnetic disk |
| 10/09/1991 | EP0450976A2 Tape cassette |
| 10/09/1991 | EP0450882A2 Tape cassette |
| 10/09/1991 | EP0450826A1 Tape Cassette |
| 10/09/1991 | EP0245457B1 Record disk assembly |
| 10/08/1991 | US5055960 Cassette transport diagnostic tool |
| 10/08/1991 | US5055949 Disk drive and method for controlling the cleaning of the floppy disk |
| 10/08/1991 | US5055948 Magnetic tape using two end position identifying parts and a data recording method and apparatus using the magnetic tape |
| 10/08/1991 | US5055947 Cassette for storing data in a solid state memory in lieu of tape |
| 10/08/1991 | US5055698 Real-time particle sensor for disk drives |
| 10/08/1991 | US5054709 Tape cassette reel having upper flanges molded therewith |
| 10/08/1991 | US5054643 Cassette housing |
| 10/08/1991 | US5054626 Storage rack |
| 10/08/1991 | US5054616 Removable windows for video tape cassette and related methods of assembly |