| 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) |
|---|
| 04/10/1991 | EP0421394A2 Differential pressure measuring device |
| 04/10/1991 | CN1050634A Imformation processor and disk memory used in same |
| 04/09/1991 | US5007040 Magnetic recording and/or reproducing apparatus having a retaining mechanism for a disc-shaped magnetic record bearing medium |
| 04/09/1991 | US5006948 Disk cartridge with improved cleaning mechanism |
| 04/09/1991 | US5006947 magnetic tape cassette having improved dust proofing |
| 04/09/1991 | US5006942 Rigid magnetic data storage disk assembly with grooved spacer |
| 04/09/1991 | US5006058 Apparatus for injection molding information recording disks |
| 04/09/1991 | US5006038 Method for carrying and transporting computer tape cartridges |
| 04/09/1991 | US5005780 Reel spring for magnetic tape cassettes |
| 04/09/1991 | CA1282764C Limited play tape cassette system |
| 04/09/1991 | CA1282763C Tape cassette |
| 04/04/1991 | WO1991004558A1 Housing for storing a recording support such as a magnetic tape cassette, laser disc or the like |
| 04/03/1991 | EP0420304A1 Method of manufacturing an optical recording medium |
| 04/03/1991 | EP0420247A2 Magnetic tape cassette |
| 04/03/1991 | EP0420112A2 Information processor and disk memory used in the same |
| 04/03/1991 | EP0419953A2 Apparatus for two-layered injection moulding |
| 04/03/1991 | EP0236435B1 Reel storage container |
| 04/03/1991 | CN2074490U Tape-reel-changable tape recording case |
| 04/03/1991 | CN1012307B Elastic element structure for reel retention ratchet gear in magnetic tape cassettes |
| 04/03/1991 | CN1012306B Magnetic tape cassette loading system in recording and/or reproducing apparatus |
| 04/02/1991 | US5005099 Method and apparatus for the prevention of fast-forwarding of a video cassette tape |
| 04/02/1991 | US5005093 Recording and/or reproducing apparatus with cartridge lock mechanism |
| 04/02/1991 | US5005092 Shutter opening device |
| 04/02/1991 | US5004180 Magnetic tape cassette |
| 04/02/1991 | US5004175 Winding core for magnetic tape adapted for stacking |
| 03/28/1991 | DE4029843A1 Magnetic tape cassette housing - has base with spool-locating projections shaped to provide slight rotation to eliminate slack |
| 03/27/1991 | CN2074049U Shell type tape storage leaf (storage book) |
| 03/27/1991 | CN1012231B Mask for magnetic tape cassettes |
| 03/26/1991 | US5003425 Tape cassette having tape contacting slack regulating portions |
| 03/26/1991 | US5002455 Flow processing system |
| 03/26/1991 | US5002239 Locking/unlocking means for a cassette, and a cassette having this means |
| 03/26/1991 | US5002237 Removable tape reel assembly system for a magnetic tape cassette |
| 03/22/1991 | WO1991005347A1 Tape cartridge housing fastener system |
| 03/22/1991 | CA2066723A1 Tape cartridge housing fastener system |
| 03/21/1991 | DE4028151A1 Miniature magnetic tape cassette for video recording - restrains spool movement by inserts with damping material on surfaces |
| 03/20/1991 | EP0417969A2 Tape system |
| 03/20/1991 | EP0417886A2 Disk storage/select player |
| 03/20/1991 | EP0417726A2 Optical disk cartridge |
| 03/20/1991 | EP0417266A1 Magnetic head contour utilizing facets for air film skiving |
| 03/20/1991 | EP0417158A1 Method for writing and means for reading position-indicating markers on tape |
| 03/20/1991 | CN2073612U Videotape's box |
| 03/19/1991 | US5001667 Optical storage device |
| 03/19/1991 | US5000526 Video cassette holder apparatus |
| 03/19/1991 | CA1281815C Reader/writer apparatus for optical memory card |
| 03/19/1991 | CA1281705C Process for lubricating accessories of cassettes containing magnetictapes |
| 03/13/1991 | WO1991004161A1 Changeable labelling system for recording media structures |
| 03/13/1991 | EP0416579A2 A tape cartridge having a cartridge case with two-layer structure in cross section thereof |
| 03/13/1991 | CN2073148U Dust-proof dry storage box for video tape |
| 03/13/1991 | CN1049929A Tape cassette in particular magnetic tape cassette, and support liners for it |
| 03/13/1991 | CA2064891A1 Changeable labelling system for recording media structures |
| 03/12/1991 | US4999827 Recording and/or reproducing apparatus for tape type optical recording medium |
| 03/12/1991 | US4999727 Disc cartridge with alignment elements on two hub halves |
| 03/12/1991 | US4998985 Method of utilizing a videocassette identifying storage and display sleeve |
| 03/12/1991 | US4998618 Storage case for optical discs |
| 03/12/1991 | US4998424 Door attachable safe |
| 03/09/1991 | CA2024904A1 Optical memory element and sheet for use with the same |
| 03/09/1991 | CA2024757A1 Method and apparatus for assembling articles from two halves |
| 03/07/1991 | WO1991003052A1 Tape cassette, in particular magnetic-tape cassette, and foils for such cassettes |
| 03/07/1991 | WO1991003051A1 Tape cassette, in particular magnetic-tape cassette, and foils for such cassettes |
| 03/07/1991 | WO1991003050A1 Endless cassette tape |
| 03/06/1991 | EP0415696A2 Multi-unit storage carriers for disc-shaped containers |
| 03/06/1991 | EP0415348A2 Tape cassette |
| 03/06/1991 | EP0415083A2 Cassette container case |
| 03/05/1991 | US4998176 Nonwoven fabric, high molecular weight resin; low lint |
| 03/05/1991 | US4998174 Floating type magnetic head assembly |
| 03/05/1991 | US4997224 Compact disc removal tool |
| 02/28/1991 | DE4026190A1 Audio tape cassette contg. magnetic tape - with coating of pigment and binder on rear face with specified max. coefft. of friction against felt cushion |
| 02/28/1991 | DE3927939A1 Container for tape cassette - has hinged sections with controlled action to avoid ejection of cassette on opening |
| 02/27/1991 | EP0414544A2 Carrier with external interlock for videocassette |
| 02/27/1991 | EP0414543A2 Carrier with thumb wind tape advance for videocassette |
| 02/27/1991 | EP0246299B1 A cassette recording or non-recording indicating mechanism |
| 02/27/1991 | CN2072264U Tape cleaner for video tape rewinder |
| 02/27/1991 | CN1049567A Tape cassette, in particular magnetic tape cassette, and pairs of support liners for such cassette |
| 02/26/1991 | US4996681 Integral card for protectively enclosing an optical disk and a visual information bearing area |
| 02/26/1991 | US4996622 Achieving high density recording; smooth glass surface protects from dust |
| 02/26/1991 | US4995682 Storage facility for video cassettes |
| 02/26/1991 | US4995565 Cassette reel |
| 02/26/1991 | US4995199 Magnetic tape cassette having improved guide pole structure |
| 02/26/1991 | CA1280822C Disk file with air filtration system |
| 02/25/1991 | CA2020383A1 Carrier with external interlock for videocassette |
| 02/25/1991 | CA2020376A1 Carrier with thumb wind advance for videocassette |
| 02/21/1991 | WO1991002355A1 A recording and play-back system, primarily a video system, using tape cassettes |
| 02/21/1991 | WO1991002350A1 Floppy maintenance disk for a computer disk drive |
| 02/20/1991 | EP0412993A1 Tape drive machines. |
| 02/20/1991 | CN1011744B Improvements in magnetic tape cassettes |
| 02/19/1991 | US4995029 Optical disk identifying method, manufacture of cartridge-enclosed optical disks, and optical disk cartridges |
| 02/19/1991 | US4995026 Apparatus and method for encoding audio and lighting control data on the same optical disc |
| 02/19/1991 | US4994930 Mechanism for actuating a protective shutter provided on a cartridge accommodating a disk |
| 02/19/1991 | US4994658 A reader/writer |
| 02/19/1991 | US4993661 Tape cassette with tape leader detection improvements |
| 02/19/1991 | US4993658 Video tape cassette winding device |
| 02/19/1991 | US4993655 Plastic |
| 02/19/1991 | US4993197 Magnetic tape cassette having improved guide pole structure |
| 02/19/1991 | US4993146 Manufacturing apparatus for a disc cartridge |
| 02/14/1991 | DE3926602A1 case for data storage devices - allows indication of presence of storage device and recording and playback of data |
| 02/13/1991 | EP0412807A2 Magnetic tape cassette |
| 02/13/1991 | EP0412126A1 Split carrier for data storage disks |
| 02/13/1991 | CN1011642B Locking/unlocking means for cassette and cassette having this means |
| 02/12/1991 | US4992896 Cartridge shutter actuating device in recording and/or reproducing apparatus |
| 02/12/1991 | US4992300 Manufacturing method for a recording medium or a recording head |