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)
11/1989
11/07/1989US4878632 Magnetic tape cassettes
11/07/1989US4878583 Storing and dispensing system
11/02/1989WO1989010616A1 Video and other tape or film cassettes
11/02/1989WO1989010615A1 Cassette for sequential access recording medium and apparatus for use therewith
11/02/1989EP0339916A1 Video or other tape or film cassettes
11/02/1989EP0339725A2 Recording apparatus for a driven record carrier
11/02/1989EP0339651A2 Disc cartridge
11/02/1989EP0339150A1 An apparatus for guiding a leader block and a tape in a tape cartridge for a magnetic instrument
11/02/1989EP0339149A1 An apparatus for guiding a leader block in a tape cartridge for a magnetic instrument
11/02/1989DE3912833A1 Tape cassette
11/02/1989DE3813529A1 Cover for video cassettes
11/02/1989DE3813031A1 Machining device for the facing of program carrier disks for data stores
11/02/1989DE3812963A1 Annular plate for insertion of a recording carrier in disk form
11/01/1989CN1036854A Disc changer and disc player comprising the disc changer
10/1989
10/31/1989US4877667 Optical disc with inhibited thermal distortion
10/31/1989US4877475 Method for producing information storage disk
10/26/1989DE3812747A1 Magnetic tape cassette and magnetic tape apparatus
10/25/1989EP0338652A2 Microfloppy disc drive head cleaner
10/24/1989US4876619 Disk cartridge having shutter and a device for opening and closing the shutter
10/24/1989US4876557 Recording medium of air-sandwich structure
10/24/1989US4875641 Screw for inseparably joining cassette members
10/24/1989US4875640 Tape cartidge
10/24/1989US4875584 Container for magnetic tape cassettes
10/24/1989US4875578 Container for record carriers
10/19/1989WO1989009992A1 Video and other tape or film cassettes
10/17/1989US4875128 Disc cartridge
10/17/1989US4875125 Tape head cleaner cartridge
10/17/1989US4875109 Record/not record latch for recording cassette
10/17/1989US4874143 Tape cassette having rewind control mechanism
10/17/1989US4874088 Container and method for carrying and transporting computer tape cartridges
10/17/1989US4874085 Storage cassette for high storage density, disc-shaped information carriers
10/12/1989DE3810967A1 Winding bobbin
10/12/1989DE3810842A1 Device for storing cassettes for sound and data carriers
10/11/1989EP0336643A1 Video and other tape or film cassettes
10/11/1989EP0336637A2 Disk cartridge
10/11/1989EP0336495A1 Disc changer, and disc player comprising the disc changer
10/11/1989CN2045885U Tape case with magnifying glass
10/11/1989CN1036284A Storage case for plurality of record-carrier discs, in particular optical discs
10/10/1989US4873595 Apparatus for positioning a magnetic disk on a disk drive
10/10/1989US4873594 Disk spacer ring having air pumps
10/05/1989DE3908032A1 Disc cartridge with an optical disc
10/05/1989DE3810276A1 Method of identifying EDP programs which have been duplicated without authorisation
10/04/1989EP0335620A1 Novel polymeric compounds and recording medium employing same
10/04/1989EP0335572A2 Storing and dispensing system
10/04/1989EP0335549A2 A tape cassette having means for locking reels thereof
10/04/1989EP0335465A2 Optical information recording disc and apparatus for driving the disc
10/04/1989EP0335461A1 Cassette
10/04/1989CN2045540U Magnetic tape box
10/03/1989US4872151 Compact disc player capable of playing plural selections recorded on a compact disc in a preselected sequence
10/03/1989US4871153 Spring for biasing a braking member of a tape cassette
10/03/1989US4871064 Cassette storage container
10/03/1989CA1262185A1 Tape cassette
09/1989
09/27/1989EP0334457A1 Storage device more particular for compact discs
09/27/1989CN2045142U Tape-replaceable box type cassette box
09/26/1989US4870636 Optical information processing apparatus and cleaning cartridge
09/26/1989US4870524 Substrate for rigid disk storage media
09/26/1989US4870291 Splice inspection method and apparatus using light inclined at a prescribed angle
09/26/1989US4869440 Magnetic tape cassette
09/26/1989US4869410 Magnetic tape container
09/26/1989CA1261280A1 Apparatus for cleaning a record disc
09/26/1989CA1261240A1 Nonwoven fabric
09/26/1989CA1261061A1 Magnetic disk cartridge with erasure-preventing device
09/26/1989CA1260404A1 Compact disc cleaner
09/26/1989CA1259929A1 Anti-theft device for compact discs
09/21/1989WO1989008918A1 Disk magazine and disk loading device
09/21/1989WO1989008552A1 Tape having a surface with a low coefficient of friction and long wear characteristics
09/20/1989EP0333271A1 Storage system for cassettes and elements adapted to be used therefore
09/20/1989EP0332784A2 A process of treating magnetic recording media
09/20/1989CN2044760U Video cassette with combined structure
09/20/1989CN2044759U Information recorder
09/19/1989US4868849 Telephone card and telephone card-operated telephone
09/19/1989US4868805 Inspection apparatus
09/19/1989US4868701 Recording disc assembly
09/19/1989US4868700 Cleaning device for disc drive unit
09/19/1989US4868699 Microfloppy disc drive head cleaner
09/19/1989US4868688 Elongated strip storage apparatus and recorder tape duplicator system utilizing endless tape stored in storage apparatus
09/19/1989US4867388 Magnetic tape winding device
09/19/1989US4867318 Storage rack and the like
09/19/1989US4867311 Computer diskette dispenser and storage device
09/19/1989US4867310 Cassette tape holder
09/19/1989US4867302 Recording medium keeping case
09/19/1989CA1259699A1 Optical memory card reader
09/19/1989CA1259698A1 Laser access apparatus for optical disk drive
09/13/1989EP0332395A2 Ultra-compact recorder
09/13/1989EP0332377A2 Display racks and brackets therefor
09/13/1989EP0332214A2 A disk cartridge
09/13/1989EP0332170A2 Combined memory medium, drive apparatus and method therefor and playback apparatus therefor
09/13/1989EP0332166A2 Method of and system for assembling magnetic disk cartridge
09/12/1989US4866697 Information memory medium
09/12/1989US4865265 Magnetic tape cassette
09/12/1989US4865195 Support or storage case for aligning a magnetic-tape cassette
09/12/1989US4865190 Security package with rotatable locking channel
09/12/1989US4864710 Method and apparatus for automatically loading flexible tape-like recording medium
09/08/1989WO1989008313A1 Disk drive apparatus
09/08/1989WO1989008312A1 Removable cartridge for radial arm voice coil actuated disc drive
09/08/1989WO1989008310A1 Tape cassette with rigid tape guide
09/07/1989DE3806411A1 Method for transmitting an audio signal and an auxiliary signal
09/06/1989EP0331389A2 Assembly of a disc, a cartridge and an adapter and adapter therefore
09/05/1989US4864452 Removable cartridge with lockable access door
09/05/1989US4864451 Flexible disk jacket