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)
05/1989
05/09/1989US4828197 Method and device for winding magnetic tape using magnetic alignment
05/09/1989US4828196 Device for winding magnetic tape using magnetic alignment
05/09/1989US4828194 Apparatus for winding magnetic tape into cassettes
05/05/1989WO1989004036A1 Spacer for disks in a disk drive
05/03/1989EP0314010A2 Information recording disk
05/03/1989EP0313937A2 Packaging for record carrier
05/03/1989EP0235140B1 Device for holding objects, arrangement provided with such devices and method for the production thereof
05/02/1989US4827470 Information memory medium
05/02/1989US4827469 Optically readable information disk
05/02/1989US4827468 Information memory medium
05/02/1989US4826019 Handling apparatus for magnetic recording disks
05/02/1989US4826005 Packaging of information recording media
05/02/1989US4825680 Method of manufacturing metal substrates for disk for memory storage media
05/02/1989US4825497 Disc cleaner
04/1989
04/26/1989EP0312891A2 Magnetic tape cassette
04/25/1989US4825320 Club magnetic tape cassette having a protective layer
04/25/1989US4825314 Disc drive
04/25/1989US4824044 Tape cassette
04/25/1989US4823578 Method of manufacturing substrate for memory disk
04/25/1989CA1253250A1 Optical memory cartridge and drive apparatus
04/20/1989DE3733639A1 Write protection for the jacket of a flat data carrier
04/19/1989EP0312106A2 Tape cassette
04/19/1989EP0311920A2 Cassette with locking element
04/19/1989CN1032464A Improvments in magnetic tape cassettes
04/19/1989CN1032463A Flexible disk cassette
04/18/1989US4823223 Mechanism for locking tape reel in magnetic tape cassette
04/18/1989US4823214 Disk drive for cartridge disks
04/18/1989US4822327 Jacket for a flexible magnetic disk and production of the jacket
04/18/1989US4821917 Storage and dispensing means
04/18/1989US4821882 Insulated receptacle device for cassettes
04/18/1989CA1252890A1 Transaction card with magnetic stripe emulator
04/18/1989CA1252758A1 Tape cartridge storage system
04/12/1989EP0311373A2 Disk cartridge
04/12/1989EP0311089A2 An arrangement for preventing entrance of harmful particles for use in a cartridge
04/12/1989EP0310678A1 Disc recording/reproducing apparatus and disc recording/reproducing method
04/11/1989US4821135 Increased thermoconductivity, low coefficient of friction; prevents heat generation or accumulation
04/11/1989US4821124 Disc case having removable disc and sub-turntable
04/11/1989US4819890 Magnetic tape cassettes
04/11/1989US4819889 Magnetic tape cassette
04/11/1989US4819813 Rigid flat articles, such as cassettes
04/11/1989US4819802 Holder and ejector assembly for cassette-type casings
04/11/1989US4819801 Storage case
04/11/1989US4819798 Multiple container
04/05/1989EP0309727A1 Flexible disk cassette
04/05/1989CN1032255A Information recording disc and its manufacture technique
04/04/1989US4819223 Video record disc
04/04/1989US4819114 Write-protected data storage disk assembly
04/04/1989US4819105 Spacer for disks in a disk drive
04/04/1989US4818437 Conductive coatings and foams for anti-static protection, energy absorption, and electromagnetic compatability
04/04/1989US4817884 Method and device for winding magnetic tape using magnetic alignment
04/04/1989US4817881 Endless microcassette tape
04/04/1989US4817840 Apparatus for feeding leader tape
04/04/1989US4817799 Disk package
04/04/1989CA1252207A1 Visible image magnetic card
04/04/1989CA1252206A1 Stretched surface recording medium
03/1989
03/30/1989DE3739093A1 Video cassette
03/29/1989EP0309398A1 Cleaning cassette for a cassette tape apparatus
03/29/1989EP0309298A2 Recording selection, high speed and high quality duplication, and royalty payment apparatus and method
03/29/1989CN2035133U Winder of cassette tape
03/28/1989US4817079 For limiting movement
03/28/1989US4817078 Cleaning apparatus for a pick up lens of compact disc player using a front loading base
03/28/1989US4816954 Blocking switch for computer diskettes
03/28/1989US4816953 Tape cassette with groove engageable with loading hook
03/28/1989US4816952 Cleaning apparatus for a tape drive machine
03/28/1989US4816951 Device for cleaning tape contacting members in video tape recorders and the like apparatus
03/28/1989US4815795 Holder for tape cartridges
03/28/1989US4815646 Pinch roller assembly with dust prevention means
03/28/1989US4815611 Display rack assembly
03/28/1989US4815598 Storage magazine with plural leaf springs for recording tape cassettes in the cassette boxes
03/23/1989DE3730969A1 Magneto-optical store with a magnetic head integrated into the scanning unit
03/22/1989EP0308161A2 Disk cartridge
03/22/1989EP0308012A1 System for recording/reading information on/from a disc
03/22/1989EP0307492A1 Method and apparatus for manufacturing hollow cylindrical guide roller for magnetic recording tape
03/21/1989US4815065 Disc-record player comprising, a disc-loading mechanism and disc-holder for use in such a player
03/21/1989US4814928 Information recording disk provided with distinguishing mark
03/21/1989US4814927 Magnetic disk cartridge
03/21/1989US4814926 Flexible disk cassette
03/21/1989US4814925 Sealed cassette containing recording carrier tape
03/21/1989US4814924 Composite memory device
03/21/1989US4814923 Cassette condition indicating device
03/21/1989US4814906 Magnetic head slider
03/21/1989US4814899 Tape transporting device
03/21/1989US4814749 Protection system
03/21/1989US4814047 Digital audio disks
03/21/1989US4813838 Automatic loader for computer diskettes
03/21/1989US4813628 Slack limiter for a magnetic tape cassette
03/21/1989US4813540 High impact strength protective seals for tape reels
03/21/1989US4813534 Display package
03/16/1989DE3729241A1 Diskette
03/16/1989DE3726438A1 Expert documentation on video
03/15/1989EP0306667A1 Magazine and drawer for the receipt of disc-shaped record carriers
03/15/1989EP0190180B1 Device for storing flat recorded-material supports
03/14/1989US4812939 Magnetic recording disc having tensioned and elastically-supported recording surface
03/14/1989US4812938 Floppy disk liner with improved cleaning ability
03/14/1989US4812937 Magnetic disk cartridge with improved center plate for disk mounting
03/14/1989US4812936 Cassette having magnetic tape protected from contaminants
03/14/1989US4811995 Storage container for disc-form recording media
03/14/1989US4811911 Apparatus for winding a recording carrier onto a pair of spools
03/14/1989US4811851 Shelf organizer
03/09/1989DE3728168A1 Video cassette