| 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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| 08/23/1983 | US4399960 Magnetic tape cassette |
| 08/23/1983 | US4399936 Pantocam web threading apparatus |
| 08/23/1983 | US4399913 Cassette container with flexible and hinged drawers |
| 08/23/1983 | US4399912 Tape cassette holder |
| 08/23/1983 | CA1152641A1 Information signal recording and/or reproducing apparatus and a recording jacket for use therewith |
| 08/17/1983 | EP0086177A1 Modular case for videocassettes and the like |
| 08/17/1983 | EP0086065A1 Radiation-sensitive record disc |
| 08/17/1983 | EP0085983A1 Magnetic recording disc cartridge |
| 08/17/1983 | EP0085911A1 Snap-in holder for magnetic tape cassette cases |
| 08/16/1983 | US4399481 Lockout device for tape cassette |
| 08/16/1983 | US4399480 Head access door, opening mechanism and method of sealing |
| 08/16/1983 | US4399471 Apparatus for recording image information and sound recordings, presented as electrical input signals, on an image record plate |
| 08/16/1983 | US4399327 Variable directional microphone system |
| 08/16/1983 | CA1152211A1 Method for recording information signal and control signal |
| 08/10/1983 | EP0085442A1 Magnetic-tape cassette |
| 08/10/1983 | EP0085165A1 Molded diskette with built in cleaning and head compliance pads |
| 08/09/1983 | US4397911 Cleaning tape |
| 08/09/1983 | US4397389 Tape cassette container |
| 08/03/1983 | EP0076307A4 Lockout device for tape cassette. |
| 08/02/1983 | US4396962 Having conveying means for an information carrier and apparatus for using the same |
| 08/02/1983 | US4396886 Document authentication by means of exchange-anisotropic magnetic material |
| 08/02/1983 | US4396465 Method for making seamless metallic ribbon belts for tape cartridges |
| 08/02/1983 | US4396169 Magnetic tape cassette |
| 08/02/1983 | US4396123 Tape cassette holder |
| 08/02/1983 | CA1151290A1 Magnetic tape cassette housing with separate reel holder |
| 08/02/1983 | CA1151002A1 Single pass ribbon cartridge for impact printers |
| 07/27/1983 | EP0084263A1 Method for making a bowed cassette shim |
| 07/26/1983 | US4395744 Disc-shaped recording medium reproducing apparatus |
| 07/26/1983 | US4394989 Adjustable endless loop tape cartridge with shipping lock |
| 07/26/1983 | US4394951 Active tape storage bin |
| 07/26/1983 | CA1150707A1 Endless type tape cassette |
| 07/19/1983 | US4394700 Restraining and sealing mechanism for disc cartridge |
| 07/19/1983 | CA1150408A1 Protective cap for a magnetic recording tape cassette |
| 07/19/1983 | CA1150407A1 Magnetic tape cassette |
| 07/19/1983 | CA1150201A1 Container for a cassette |
| 07/12/1983 | US4393423 Endless loop tape magazine, and a recording and/or playback machine utilizing the magazine |
| 07/12/1983 | CA1149946A1 Disc-shaped recording medium reproducing apparatus |
| 07/12/1983 | CA1149945A1 Disc-shaped recording medium reproducing apparatus |
| 07/12/1983 | CA1149944A1 Case for a disc-shaped recording medium |
| 07/12/1983 | CA1149942A1 Torque-measuring tape cassette |
| 07/12/1983 | CA1149937A1 Tape cassette |
| 07/05/1983 | US4392170 Magnetic recording disc cartridge with disc cleaning means |
| 07/05/1983 | US4392169 Magnetic shielding spring |
| 07/05/1983 | US4391669 Device for making recording disc cartridge |
| 07/05/1983 | CA1149330A1 Method and apparatus for controlled, low current start-up of one of a series of electrolytic cells |
| 06/29/1983 | EP0082836A2 Magnetic tape cartridge |
| 06/29/1983 | EP0082743A1 Cartridge for removable magnetic disk(s) |
| 06/29/1983 | EP0082337A2 Assembly including a flexible disk and a diskdrive therefor |
| 06/28/1983 | US4390978 Carriage translating mechanism for video disc player |
| 06/28/1983 | US4390914 Tape cassette and sound recording and reproducing apparatus for use therefor |
| 06/28/1983 | US4390913 Tape cassette and cassette receiver combination for transducing apparatus |
| 06/28/1983 | US4390579 Doped polyphenylene ether lubricant for high density information discs |
| 06/28/1983 | US4390146 Apparatus suitable for use in removing or reducing a crease or tangle in a magnetic recording tape of a cassette |
| 06/28/1983 | US4390119 Tape guide system |
| 06/28/1983 | CA1149061A1 Information recording element with lacquer screening layer |
| 06/23/1983 | WO1983002105A1 Counter assembly for a video cassette |
| 06/22/1983 | EP0082014A1 Tape cassette adapter |
| 06/22/1983 | EP0081933A1 Tape cassette cases |
| 06/22/1983 | EP0081649A2 Method for forming optical discs |
| 06/22/1983 | EP0081535A1 A device for opening a storage receptacle containing a cassette |
| 06/21/1983 | US4389690 Magnetic tape cassette including a locking mechanism |
| 06/21/1983 | US4389441 Methyl alkyl siloxane with an amine or quaternary amine dopant |
| 06/21/1983 | US4388991 Sealing and storage ring with latch apparatus |
| 06/21/1983 | CA1148654A1 Magnetic recording tape cassette |
| 06/15/1983 | EP0081023A1 Device for storing and dispensing magnetic tape cassettes |
| 06/14/1983 | US4388663 Cleaning cassette for a tape machine |
| 06/14/1983 | US4387864 Video cassette |
| 06/14/1983 | US4387843 Loop bin for magnetic tape recording apparatus |
| 06/14/1983 | US4387823 Magnetic tape cassette |
| 06/14/1983 | US4387807 Ring cover protector for records |
| 06/07/1983 | US4387411 Apparatus and method for cleaning a video player/recorder |
| 06/07/1983 | US4387114 Solidification of a liquid |
| 06/07/1983 | US4386746 Magnetic tape cassette |
| 06/07/1983 | CA1147857A1 Recirculating filter duct design |
| 06/07/1983 | CA1147856A1 Single disk cartridge |
| 06/07/1983 | CA1147853A1 Magnetic recording tape cassette |
| 05/31/1983 | US4385734 Ring with rib for winding magnetic tape |
| 05/31/1983 | US4385693 Origin identity insert for packaged cassettes |
| 05/31/1983 | CA1147461A1 Record handling mechanism for caddy type video disc player |
| 05/31/1983 | CA1147458A1 Recording system and cassette for such a recording system |
| 05/26/1983 | WO1983001863A1 Disc cartridge loading mechanism |
| 05/26/1983 | WO1983001861A1 Contaminant purging in a magnetic disc drive |
| 05/24/1983 | USRE31250 Slot loaded, low profile magnetic tape drive |
| 05/24/1983 | US4385335 Method and apparatus for centering magnetic disks |
| 05/24/1983 | US4385331 Tape cartridge assembly and tape transport apparatus for use therewith |
| 05/24/1983 | CA1147057A2 Mastering machine |
| 05/24/1983 | CA1147056A1 Air-flow system for a disk file |
| 05/24/1983 | CA1147054A1 Buffered recording |
| 05/18/1983 | EP0079110A1 Information-disc cassette |
| 05/18/1983 | EP0078997A2 Tape cassette with a record carrier with magnetic track and echo erasing device for such a tape cassette |
| 05/18/1983 | EP0078831A1 Improved optical disc unit, and cooperating record/playback apparatus |
| 05/17/1983 | US4384352 Rotary recording medium reproducing apparatus |
| 05/17/1983 | US4384311 Method for cleaning the disc surface and the head support structure in a magnetic disc drive |
| 05/17/1983 | US4383660 Single reel tape cartridge with leader block door seal |
| 05/17/1983 | US4383610 Cassette retention pocket |
| 05/11/1983 | EP0078696A1 Tape cassette |
| 05/11/1983 | EP0078369A2 Printer ribbon cartridge and loading arrangement therefor |
| 05/10/1983 | US4383285 Memory error signal devices for tape cassettes with memory |
| 05/10/1983 | US4382565 Biasing element of high density polyethylene blended with carbon |
| 05/10/1983 | US4382523 Tape cover of magnetic tape cassette and process for preparing tape cover |