| 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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| 12/11/1990 | US4977475 Lining member for the surface of a casing for a disc cartridge |
| 12/11/1990 | US4977474 Magnetic tape cartridge requiring uniform force during leader block attachment and detachment |
| 12/11/1990 | US4977466 Magnetic tape wind-up control method, and tape wind-up apparatus |
| 12/11/1990 | US4977040 Magnetic card |
| 12/11/1990 | US4976350 Apparatus for accommodating box-like articles |
| 12/05/1990 | EP0400933A2 Tape cassette |
| 12/05/1990 | EP0400744A1 System for recording/reproducing signals on magnetic tape in cassettes |
| 12/05/1990 | EP0400579A2 A tape cartridge with a transparent window for watching a state of wound tape |
| 12/05/1990 | EP0400218A2 Recording medium playing apparatus with automatic tonal response setting function |
| 12/05/1990 | EP0215023B1 Magnetic tape cassette having a prerecorded low frequency tone |
| 12/05/1990 | CA2018169A1 Disk cartridge |
| 12/04/1990 | US4975789 Recording apparatus for a drivable record carrier |
| 12/04/1990 | US4974791 Magnetic tape cassettes |
| 12/04/1990 | US4974785 Splicing head assembly for tape loading machines |
| 12/04/1990 | CA1277419C Magnetic data storage media |
| 11/29/1990 | WO1990014667A1 High storage capacity compact cartridge for use with a precision magnetic tape recorder |
| 11/29/1990 | WO1990014661A1 Non-contact magnetic head assembly for a flexible medium disk drive |
| 11/28/1990 | EP0399110A1 Record diskette or disk jackets lined with powder bonded nonwoven fabrics |
| 11/28/1990 | EP0398978A1 Public video recording system |
| 11/28/1990 | EP0398899A1 Security device for a video recorder of player |
| 11/28/1990 | CN1047413A Compact cassette having at least one substantially rectangular support liner and support liner for this cassette |
| 11/27/1990 | US4974108 Elastic element structure for the reel retention ratchet gear in magnetic tape cassettes |
| 11/27/1990 | US4974106 Non-contact magnetic head assembly for a flexible medium disk drive |
| 11/27/1990 | US4974105 Hand-held transducing device |
| 11/27/1990 | US4974103 High density disc drive with magnetic clutch for use with a sealed removable cartridge |
| 11/27/1990 | US4974100 Endless tapedrive system |
| 11/27/1990 | US4973088 Changeable labelling system for recording media structures |
| 11/27/1990 | US4973012 Magnetic tape cassette |
| 11/27/1990 | US4972951 Tray for video tape |
| 11/22/1990 | EP0398671A2 Topload tape cartridge for videocassette |
| 11/22/1990 | EP0397713A1 Contoured head assembly for use in a cassette loaded recorder. |
| 11/21/1990 | CN1010521B Flexible disk cassette |
| 11/21/1990 | CN1010520B Imformation storage device |
| 11/20/1990 | US4972404 Optical disc |
| 11/20/1990 | US4971648 Apparatus for bonding hubs to diskettes |
| 11/20/1990 | US4971206 Video cassette display module for slot-wall merchandising |
| 11/20/1990 | US4971199 Holder for tape cartridges |
| 11/20/1990 | US4970748 Apparatus for cleaning magnetic tape |
| 11/20/1990 | CA1276722C Optical recording disc |
| 11/18/1990 | CA2015374A1 Topload tape cartridge for videocassette |
| 11/14/1990 | EP0397528A2 Tape cassette with tape leader detection improvements |
| 11/14/1990 | EP0397436A2 Tape cassette |
| 11/14/1990 | CN2065791U Convenient video tape and v-o box there of |
| 11/14/1990 | CN1010444B Method of fixedly mounting tape on core portion of reel made of plastics |
| 11/13/1990 | US4970618 Disk cartridge case formed by ultrasonic welding |
| 11/13/1990 | US4970617 Cleaning device for tape in a cassette |
| 11/13/1990 | US4969612 Cassette formed from a bendable material |
| 11/13/1990 | US4969611 Magnetic tape cassette |
| 11/13/1990 | CA1276294C Magnetic tape cassette with magnetic tape protective closure and bias means therefor |
| 11/13/1990 | CA1276292C Tape loading device |
| 11/12/1990 | CA2014336A1 Tape cassette with tape leader detection improvements |
| 11/07/1990 | EP0396234A2 One-way clutch assembly |
| 11/07/1990 | EP0395974A1 Modular apparatus used for the orderly display, in particular of advertising fliers accompanying video cassettes, video cassettes themselves or like materials |
| 11/07/1990 | EP0395948A2 Closing adhesive tape printed with identification marks for recording medium |
| 11/07/1990 | EP0395694A1 Video cassette rental system and method and record playback counter therefor |
| 11/06/1990 | US4969138 Multi-disk player system |
| 11/06/1990 | US4969061 Particulate removing means for cartridges |
| 11/06/1990 | US4969060 Floppy disk write protector and method of providing same |
| 11/06/1990 | US4968356 Method of producing hardened aluminum alloy forming sheet having high strength and superior corrosion resistance |
| 11/06/1990 | US4967915 Storage rack and the like |
| 11/01/1990 | WO1990013118A1 Video cassette recorder protection system |
| 10/31/1990 | EP0395238A2 Insertable tape cartridge for videocassette |
| 10/31/1990 | EP0394995A2 Information record/reproducing apparatus and information recording medium |
| 10/31/1990 | EP0394780A2 Cassette for magnetic tape |
| 10/31/1990 | EP0394686A2 Integral data storage disk card |
| 10/31/1990 | DE3926997A1 Thermoplastics memory diskette housing - has slider for blocking access window spring=biased into closed position |
| 10/31/1990 | DE3914415A1 Information carrier reception housing - has decorative appearance that simulates book for use in home |
| 10/31/1990 | CN2064925U Cassette capable of automatically ejecting tape |
| 10/30/1990 | US4967286 Method and apparatus for forming a digital image on an optical recording disc |
| 10/30/1990 | US4967184 Computer disk with security protection |
| 10/30/1990 | US4966285 Container having index sheet and recording medium |
| 10/30/1990 | US4966283 Cassette album with channel-form hinges and method |
| 10/26/1990 | WO1990013123A1 Viewing aid |
| 10/26/1990 | CA2053882A1 Viewing aid |
| 10/26/1990 | CA2012911A1 Insertable tape cartridge for videocassette |
| 10/25/1990 | DE4012669A1 Magnetic tape cassette with dust-excluding front cover - has front and rear flaps whose surfaces meet along contact face describing circular arc during opening |
| 10/25/1990 | DE3915485A1 Computer disk cleaner with vacuum system for dirt removal - operates by suction of particles transferred to relatively soft brush from disk rotated on rubber support |
| 10/25/1990 | DE3913827A1 Storage device for compact discs or audio cassettes - is divided into compartments by upright partitions thicker than width of grooves into which they slide |
| 10/25/1990 | DE3913141A1 Video tape cassette with contactless tape course control - has locking and release mechanism operated by motor-driven pin from outside cassette contg. spring lever |
| 10/24/1990 | EP0393955A1 Video recording apparatus |
| 10/24/1990 | EP0393915A2 Magnetic disk drive with seal |
| 10/24/1990 | EP0393862A2 Disk drive with disk stack assembly |
| 10/24/1990 | EP0393858A1 Optical disk case assembly |
| 10/24/1990 | CN2064533U Open type compact cassette boxes and shell tape cores |
| 10/24/1990 | CN2064532U Case for tapes |
| 10/24/1990 | CN1010136B Mask structure for cassettes of magnetic tape |
| 10/24/1990 | CN1010135B Flat spring structure for magnetic type cassettes, in particular video cassettes |
| 10/24/1990 | CA2011824A1 Integral data storage disk card |
| 10/23/1990 | US4965691 Sealed removable cartridge for use with a high density disc drive with magnetic clutch |
| 10/23/1990 | US4965690 Tape cassette having outer housing layers of elastomeric material |
| 10/23/1990 | US4965686 Disc drive assembly for magnetic disc memory unit |
| 10/23/1990 | US4965118 Adapter for reproduction of digital information; suitable for mass production |
| 10/23/1990 | US4964588 Right parallelepiped cassette for tape-like recording media, and housing part thereof |
| 10/23/1990 | US4964286 Security device for a video recorder or player |
| 10/18/1990 | WO1990012398A1 Magnetic head contour utilizing facets for air film skiving |
| 10/18/1990 | WO1990012393A1 A method of and an arrangement for manufacturing coded tapes |
| 10/18/1990 | WO1990012392A1 Magnetic recording medium |
| 10/18/1990 | DE4009834A1 Magnetic tape cassette housing for audio or video recording |
| 10/18/1990 | CA2013817A1 Optical disk case assembly |
| 10/17/1990 | EP0392620A2 Apparatus for automatically accessing cartridges in an array |