| Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826) |
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| 02/12/1980 | US4187726 Computer performance measurement device and process |
| 02/12/1980 | CA1071478A1 Magnetic recording substance |
| 02/06/1980 | EP0007764A1 Stabilized ferromagnetic chromium dioxide and a process for preparing it |
| 02/06/1980 | EP0007755A1 Method for producing a magnetic recording medium and magnetic recording medium so produced |
| 02/06/1980 | EP0007642A1 Magnetic recording medium |
| 02/06/1980 | EP0007638A1 Device for regulating the speed of a positioner for the write/read heads of a magnetic disc memory |
| 02/06/1980 | EP0007548A1 A dual magnetic recording assembly for a flexible record member |
| 02/06/1980 | EP0007449A1 Method for generating digital signals representing the real velocity in a positioning system for the write/read heads of a magnetic disc memory |
| 02/06/1980 | EP0007401A1 Magnetic transducer head support assemblies |
| 02/05/1980 | US4187521 DC erase head |
| 02/05/1980 | US4187345 Ethylene oxide-propylene oxide copolymer, lubricant |
| 02/05/1980 | US4187341 Magnetic recording tape |
| 02/05/1980 | US4186944 Security document |
| 02/05/1980 | US4186481 Method for fabrication of rear chip for hall effect magnetic head |
| 02/05/1980 | US4186480 Method of manufacturing a rotatable magnetic head arrangement |
| 02/05/1980 | CA1071325A1 Head to track alignment in a rotating head magnetic tape unit |
| 01/29/1980 | US4186411 Recording and playback modulation method and apparatus |
| 01/29/1980 | US4186364 Method of magnetizing erasing head |
| 01/29/1980 | US4186228 Containing a 1,2-epoxyalkane as a lubricant |
| 01/29/1980 | CA1070521A1 Linear actuator |
| 01/23/1980 | EP0006959A1 Thin-film coil producing method |
| 01/22/1980 | US4185310 Cooling apparatus for spinning magnetic disc memory apparatus |
| 01/22/1980 | US4185309 Magnetic head adjustment mechanism |
| 01/22/1980 | US4184631 Device for reading information magnetically coded on a carrier |
| 01/22/1980 | CA1070422A1 Magnetic disk storage apparatus |
| 01/15/1980 | US4184183 Field replaceable heads for magnetic tape machine |
| 01/15/1980 | US4184181 Method and device for tracking video signals on a magnetic tape by detecting phase jumps |
| 01/15/1980 | US4184178 Drop-out compensator for sound reproducing apparatus during tape reversal |
| 01/15/1980 | US4184108 Self-regulating electronic tachometer |
| 01/15/1980 | US4183976 Process of producing a magnetic recording element |
| 01/15/1980 | US4183819 Solution and method for cleaning, polishing and lubricating magnetic heads |
| 01/15/1980 | CA1070010A1 Random selection control system for recording tape cartridges |
| 01/09/1980 | EP0006269A1 Elements for magnetic heads, magnetic heads manufactured with these elements, methods for producing both |
| 01/09/1980 | EP0006142A1 Protective circuit arrangement for data recorded on a magnetic tape |
| 01/08/1980 | US4183070 Electromagnet for degaussing record-reproduce heads |
| 01/08/1980 | US4183067 Helical scan VTR with means for displacing head along track direction |
| 01/08/1980 | US4182987 Magnetometer employing hard axis thin film inductor |
| 01/08/1980 | US4182643 Method of forming gaps in magnetic heads |
| 01/08/1980 | CA1069615A1 Head to disc interface adjustment |
| 12/25/1979 | US4180840 Cleaning disk assembly for oppositely-oriented, dual-component magnetic transducers |
| 12/25/1979 | US4180839 Information reproducing apparatus |
| 12/25/1979 | US4180837 Magnetic coding method |
| 12/25/1979 | US4180836 Positioning device of play-back heads and pressing devices in play-back and/or recording apparatus |
| 12/25/1979 | US4180835 Magnetic erasing head with gaps utilizing high flux density and high permeability |
| 12/25/1979 | US4180833 Apparatus and method for reproducing video signals |
| 12/25/1979 | US4180832 Video recording and reproducing apparatus having variable reproduction speeds |
| 12/25/1979 | US4180597 Manufacture of magnetic recording media |
| 12/25/1979 | CA1068819A Magnetic bubble devices with controlled temperature characteristics |
| 12/25/1979 | CA1068818A Method of fabricating stainless steel aluminum rotor |
| 12/25/1979 | CA1068816A Interchangeable information storage element |
| 12/25/1979 | CA1068814A Decoding of digital information in a tape |
| 12/18/1979 | US4179720 Magnetic recorded information reproducing apparatus |
| 12/18/1979 | US4179719 Thin film magnetic head |
| 12/18/1979 | US4179717 Method and apparatus for video signal recording |
| 12/18/1979 | US4179715 Electric circuit for accessory for host tape recorder |
| 12/18/1979 | US4179713 Method and equipment for the production of multi-channel sound signal |
| 12/18/1979 | US4179387 Process for producing magnetic FE oxide |
| 12/18/1979 | CA1068412A1 Magnetoresistive sandwich including sensor electrically parallel with electrical shunt and magnetic biasing layers |
| 12/18/1979 | CA1068401A1 Magnetoresistive read head assembly for servo operation |
| 12/18/1979 | CA1068399A1 Disk file access mechanism |
| 12/18/1979 | CA1068398A1 Bistable deflection separation of flexible disks |
| 12/18/1979 | CA1068396A1 Guide drum apparatus for a video tape recorder and/or player |
| 12/18/1979 | CA1068320A1 Multi-actuator system using single magnetic circuit |
| 12/12/1979 | EP0005966A1 Positioning servo system |
| 12/12/1979 | EP0005845A1 Method and apparatus for manufacturing magnetic media |
| 12/11/1979 | US4178416 Acicular ferric oxide for magnetic recording and process for producing same |
| 12/11/1979 | US4178171 Manufacture of acicular ferromagnetic iron particles |
| 12/11/1979 | CA1067997A1 Servo system for controlling the position of a reading head |
| 12/04/1979 | US4177442 Production of magnetic media |
| 12/04/1979 | US4177317 Stabilization of chromium dioxide magnetic pigments |
| 11/29/1979 | WO1979001049A1 Automatic cassette head demagnetizer |
| 11/27/1979 | USRE30161 Apparatus measuring relative velocity of movable members including means to detect velocity from the position encoder |
| 11/27/1979 | US4176384 Magnetic recording head assembly defining precision gaps |
| 11/27/1979 | US4176381 Recording and/or reproducing apparatus for a magnetic record carrier in the form of a tape, provided with a control system for the magnetic head position |
| 11/27/1979 | US4176380 Adaptive speed/interblock gap control for tape drive |
| 11/27/1979 | US4176377 Video disc configuration |
| 11/27/1979 | US4176172 Particle gamma ferric oxide |
| 11/27/1979 | US4176016 Forming electrically insulating layers by sputter deposition |
| 11/27/1979 | US4175659 Cleaning kit |
| 11/20/1979 | US4175275 R/W Arm that prevents catastrophic failure |
| 11/20/1979 | US4175010 Method of reinforcing a conductive base pattern by electroplating and device obtained by means of the method |
| 11/20/1979 | CA1066483A1 Process for production of finely divided magnetite particles |
| 11/14/1979 | EP0005255A1 Erase head for erasing single tracks of a multi-track magnetic recording tape |
| 11/13/1979 | CA1066412A2 Double mirror beam steering in video disc playback assembly |
| 11/13/1979 | CA1066410A1 Positioning device for the access arm of the magnetic head of a magnetic disk storage |
| 11/13/1979 | CA1066407A1 Initialization circuitry for magnetic recording system |
| 11/13/1979 | CA1066406A2 Magnetic record member for use with rotating head magnetic recording apparatus |
| 11/13/1979 | CA1066405A1 Head drum assembly |
| 11/06/1979 | US4173065 Method of manufacturing a magnetic head |
| 11/06/1979 | CA1065962A1 Method of manufacturing magnetic heads |
| 11/06/1979 | CA1065696A1 Articles including passivated metal particles and their production |
| 11/06/1979 | CA1065651A1 Process for production of ferromagnetic powder |
| 10/30/1979 | US4172318 Method of joining manganese zinc ferrite pole pieces |
| 10/30/1979 | CA1065481A1 Magnetic recording tape |
| 10/30/1979 | CA1065480A1 Magnetic sheet player for audiovisual teaching purposes |
| 10/30/1979 | CA1065479A1 Method and apparatus for aligning read/write heads in a disc recorder |
| 10/23/1979 | US4172267 Dynamic filter for a moving head disk storage system |
| 10/23/1979 | US4172265 Automatic head tracking system |
| 10/23/1979 | US4172176 Magnetizable particles dispersed in resinous binder, ester of 2-ethylhexanoic acid as lubricant |
| 10/23/1979 | US4172171 Magnetic recording medium |