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)
05/1990
05/22/1990US4928189 Multifunctional magnetic head cleaning media
05/22/1990CA2003065A1 Video and/or audio cassette assembly
05/17/1990WO1990005363A1 Magnetic recording apparatus
05/17/1990DE3838653A1 Conical store of glass for purely magnetic, magnetic-optical or structural-optical data storage and reproduction and process for producing the same
05/16/1990EP0368667A2 A magnetic recording and reproducing apparatus
05/16/1990EP0368627A2 Cassette container
05/16/1990EP0368416A1 System for recording and/or reading signals on/from information carriers in cassettes
05/16/1990EP0368347A2 Disk Cartridge
05/16/1990EP0368242A2 An optical disk apparatus
05/16/1990CN1042247A Film information exchange system using dedicated magnetic tracks on film
05/16/1990CA2003017A1 Rotatable shelf assembly
05/15/1990US4926411 Cassette having an information disc
05/15/1990US4926410 Disk
05/15/1990US4926406 Disk player
05/15/1990US4926279 Magnetic tape cassette
05/15/1990US4926277 Structure improvement of cleaner tape cartridge for video tape recorder/player
05/15/1990US4925027 Cassette container
05/14/1990CA2000477A1 High density disk drive with magnetic clutch and a removable cartridge
05/10/1990DE3838012A1 Workpiece carrier
05/09/1990EP0367694A1 Packaging box with interlocking trays
05/09/1990EP0367593A2 Transport apparatus for a single reel tape cartridge
05/09/1990EP0367518A2 A magnetic tape cleaner
05/09/1990EP0367510A2 Apparatus and method for near contact magnetic recording
05/09/1990CN1042020A 磁带盒 Cartridges
05/08/1990US4924338 Prolong VCR tape cassette
05/08/1990US4923137 Tape reel hub
05/08/1990US4923062 Insert in combination with audio cassette security packages
05/08/1990US4922734 Locking assembly for preventing the unauthorized use of an electrically powered device
05/03/1990WO1990004847A1 Computer communication interface
05/03/1990WO1990004548A1 A casing theft protection device
05/03/1990DE3836887A1 Closing device as insertion preventer for magnetic-tape cassettes, in particular video-tape cassettes
05/03/1990CA2001999A1 Threading apparatus for a single reel cartridge
05/02/1990EP0366452A2 Disk tray
05/02/1990EP0366368A2 Tape cassette
05/02/1990CN1041835A Frame-by-frame data recording film information exchange system using dedicated magnetic tracks on film
05/01/1990US4922406 Labyrinth seal in disk storage drive
05/01/1990US4922361 Pressure pad, particularly for magnetic tapes
05/01/1990US4922354 Disk drive air filter
05/01/1990US4921729 Two-layer coating method
05/01/1990US4921562 Process of preparing a casing for magnetic recording medium
05/01/1990US4921097 Display case for a jacketed cassette
04/1990
04/28/1990CA2000957A1 Stackable-shell packing case
04/25/1990EP0364476A1 Cleaning cassette.
04/24/1990US4920441 Flexible magnetic diskette
04/24/1990US4920440 Composite lid assembly
04/24/1990US4920439 Guide element structure engageable in sliding contact with a magnetic support
04/24/1990US4920436 Magnetic tape cassette system
04/24/1990US4919988 Information recording medium and process for producing the same
04/24/1990US4919873 Method of molding magnetic tape cassette body half
04/24/1990US4919356 Videotape tape guide
04/24/1990US4919287 Display unit for consumer products
04/19/1990WO1990004254A1 Frame-by-frame data recording film information exchange system using dedicated magnetic tracks on film
04/19/1990WO1990004214A1 Film information exchange system using dedicated magnetic tracks on film
04/19/1990WO1990003892A1 Video register
04/18/1990EP0364332A1 Casing for receiving and restraining a computer reel
04/18/1990CN1041471A Connectorless hermetic optical disk system
04/17/1990US4918559 Shutter assembly for a disk cartridge
04/17/1990US4918558 Magnetic tape cassette having reel locks controlled by an optical tape end detecting element
04/17/1990US4918557 Cleaner for magnetic head of tape recorder
04/17/1990US4917244 Library box closure device and hanger
04/12/1990DE3841731C1 Process for coating a tool base, and tool produced by this process
04/11/1990EP0362561A2 Method of, and video magnetic tape recorder for avoiding the inadvertent overwriting of video signal parts recorded on a video magnetic tape
04/11/1990EP0362463A1 Protection system
04/11/1990EP0362285A1 Disk drive architecture.
04/11/1990CN2055977U Cover plate locking device for cassette video tape
04/10/1990WO1990011584A1 Automatic cassette tape vending machine
04/10/1990US4916567 Storage cassette for a disc-shaped information carrier
04/10/1990US4916566 Magnetic tape cassette which avoids flange/housing contact
04/10/1990US4916565 Magnetic tape cassette having improved closure means
04/10/1990US4916564 Cleaning apparatus for a disc drive
04/10/1990US4915322 Cassette and locking element for the same
04/10/1990CA1267640A1 Storage container for recording media
04/05/1990WO1990003642A1 Connectorless hermetic optical disk system
04/04/1990EP0361414A2 Resin composition and article made of resin composition
04/04/1990EP0361269A2 A disc cartridge
04/03/1990US4914545 Cassette case light
04/03/1990US4913296 Storing and dispensing system
04/03/1990US4913287 Tape cartridge container
03/1990
03/29/1990DE3832932A1 Envelope for an EDP diskette
03/28/1990EP0362285A4 Disk drive architecture.
03/28/1990EP0360549A2 Disk cartridge
03/28/1990EP0360075A2 Folding box with an opening for insertion of magnetic recording cassettes
03/28/1990EP0147396B1 Secure transaction card and verification system
03/27/1990USRE33187 Stable stretched surface recording medium
03/27/1990US4912581 Magazine for supporting a plurality of magnetic disc packs each housing a magnetic disc
03/27/1990US4911776 Method of manufacturing a mold for an optically readable information disc
03/27/1990US4911774 Extraction leader tape from tape retaining means
03/27/1990US4911301 Laminated case for magnetic disk and method of manufacturing same
03/27/1990US4911298 Cassette storage container
03/22/1990DE3925902A1 Automatic cleaning of read write heads in optical disc drive - has cleaning cassette with brushes automatically loaded into position against head
03/21/1990EP0359364A2 A rigid transparent disk for testing sliders and a method of forming the same
03/21/1990EP0359214A2 Tape cassette detecting tape ends thereof with light sensing means
03/21/1990EP0358780A1 Disk magazine and disk loading device
03/21/1990CN2054931U Laser disc with ring shape set-off
03/20/1990US4910675 Diskette finishing unit
03/20/1990US4910625 Article surveillance apparatus and systems for computer data disks
03/20/1990US4910624 Optically readable disk with self centering hub
03/20/1990US4910623 Magnetic tape cassette
03/20/1990US4910618 Guide structure for guiding endless magnetic tape in a rotary head transport
03/20/1990US4910056 Carrier tape with series of apertures; center hub; used in recording