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