| 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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| 05/22/1991 | EP0427928A2 Feed forward differential equalizer for narrowing the signal pulses of magnetic heads |
| 05/22/1991 | EP0427927A2 Track position syncopation cancellation in a disk drive |
| 05/22/1991 | EP0427926A2 Disk drive having an electrically isolated disk stack |
| 05/22/1991 | EP0415936A4 Bimodal multi-track magnetic head |
| 05/22/1991 | CN1051570A Polymeric film |
| 05/21/1991 | US5018038 Thin film magnetic head with laminated metal and non magnetic film |
| 05/21/1991 | US5018037 Magnetoresistive read transducer having hard magnetic bias |
| 05/21/1991 | US5018036 Rotary head type magnetic recording and reproducing apparatus with dedicated recording and reproducing magnetic heads |
| 05/21/1991 | US5018035 Disc storage apparatus having an arcuate pivot assembly |
| 05/21/1991 | US5018034 Bi-directional tape recorder with pivoted magnetic head |
| 05/21/1991 | US5018033 Guide mechanism for head transfer apparatus |
| 05/21/1991 | US5018032 Audio reproduction device with head base moving mechanism |
| 05/21/1991 | US5017784 Thermal detector |
| 05/21/1991 | US5017337 Aluminum alloy for magnetic disc substrate execellent in platability |
| 05/21/1991 | US5016961 Optical apparatus for electrically inter-coupling rotating and stationary devices |
| 05/21/1991 | US5016342 Method of manufacturing ultra small track width thin film transducers |
| 05/21/1991 | US5016341 A process for producing magnetic heads of the floating type |
| 05/21/1991 | CA1284379C Apparatus and method for damping head positioners for high performance disk drives |
| 05/21/1991 | CA1284378C Limit stop control for a disc memory drive |
| 05/21/1991 | CA1284377C Modular structural disc drive assembly |
| 05/16/1991 | WO1991006962A1 Method of manufacturing a magnetic recording head and mask used therefor |
| 05/16/1991 | WO1991006952A2 Offset correction apparatus |
| 05/16/1991 | WO1991006948A1 Method of producing magnetic recording medium |
| 05/16/1991 | WO1991006947A1 Multiple actuator disk drive |
| 05/16/1991 | WO1991006946A1 Head lead termination |
| 05/16/1991 | WO1991006397A1 Method of machining slider for magnetic head |
| 05/15/1991 | EP0427612A1 Burnishing head for hard-discs and method for manufacturing the same |
| 05/15/1991 | EP0427490A2 Disk drive apparatus |
| 05/15/1991 | EP0427171A2 Magnetic thin film structures |
| 05/15/1991 | EP0427008A2 Rotating magnetic head assembly |
| 05/15/1991 | EP0426867A1 Method of producing substrates for magnetic disks |
| 05/15/1991 | CN2077150U Automatic commenting unit |
| 05/15/1991 | CN1051451A Head lead terminal |
| 05/14/1991 | US5016238 Linear actuator for radial access in disk recorder/player |
| 05/14/1991 | US5016132 Magnetic recording and reproducing tape guide unit |
| 05/14/1991 | US5016131 Integral balanced-moment head positioner |
| 05/14/1991 | US5016130 Retaining device for a magnetic head |
| 05/14/1991 | US5016129 Flying-type composite magnetic head with appropriate bonding glasses and method of producing same |
| 05/14/1991 | US5016128 Superconducting information storage device |
| 05/14/1991 | US5016126 Device for controlling an access operation of an information recording and reproducing device |
| 05/14/1991 | US5016122 Coil switching device |
| 05/14/1991 | US5016120 Apparatus for recording and reproducing a digitized audio signal on a magnetic tape which has a slant track format including means for detecting a control signal to identify a digitized audio signal on the slant track |
| 05/14/1991 | US5015850 Microfabricated microscope assembly |
| 05/14/1991 | US5015498 Method for preparing a magnetic recording medium |
| 05/14/1991 | US5015430 Method for manufacturing magnetic tape |
| 05/14/1991 | US5014414 Method for producing a magnetic head core |
| 05/14/1991 | CA1284216C Apparatus for recording video and pcm audio signals with insert editing using axially displaced heads |
| 05/10/1991 | WO1991007746A1 Servo tracking for helical scan recorder |
| 05/10/1991 | WO1991007744A1 Dual channel helical scan recorder |
| 05/08/1991 | EP0426440A2 Lubrication of thin film disks |
| 05/08/1991 | EP0426439A2 Method and apparatus for texturing magnetic disks |
| 05/08/1991 | EP0426399A2 Segmented bias coil for magneto-optical recording |
| 05/08/1991 | EP0426326A2 Magnetic read/write head and method of making such a head |
| 05/08/1991 | EP0426080A2 Magnetic recording medium |
| 05/08/1991 | EP0425916A2 Programmable air bearing slider including magnetic read/write element |
| 05/08/1991 | EP0425705A1 Helical scan-type rotary head drum unit |
| 05/08/1991 | CA2028316A1 Polymeric film |
| 05/07/1991 | US5014149 Thin film magnetic head |
| 05/07/1991 | US5014148 Perpendicular magnetic recording and reproducing head |
| 05/07/1991 | US5014147 Magnetoresistive sensor with improved antiferromagnetic film |
| 05/07/1991 | US5014146 Magnetic head mounting arm having asymmetrical configuration |
| 05/07/1991 | US5014145 Head arm structure mounting a circuit element in a magnetic disc device |
| 05/07/1991 | US5014144 Magnetic head slider supporting apparatus |
| 05/07/1991 | US5014142 Magnetic disk apparatus with head supporting structures of different proper oscillations |
| 05/07/1991 | US5013616 Magnetic recording medium of thin metal film type |
| 05/07/1991 | US5013602 Magnetic recording medium |
| 05/07/1991 | US5013583 Method of producing a magnetic recording medium |
| 05/07/1991 | US5013580 Video recording/play-back head, method for making it and apparatus applying said method |
| 05/07/1991 | US5013394 Method for detection of end of grinding of a thin layer magnetic head |
| 05/07/1991 | US5012618 Magnetic disc surface treatment and apparatus |
| 05/07/1991 | US5012572 Method for producing a head core slider |
| 05/07/1991 | CA1283975C Compensation method to correct thermally induced off-track errors in disc drives |
| 05/07/1991 | CA1283813C Magnetic recording medium |
| 05/02/1991 | WO1991006096A1 Disk drive servo system using gain limited high-frequency track-following compensator |
| 05/02/1991 | WO1991006095A1 Method for positioning a magnetic head on a track |
| 05/02/1991 | WO1991006094A1 Adaptive read/write channel controls |
| 05/02/1991 | EP0425064A2 Method and apparatus for automatic write current calibration in a streaming tape drive |
| 05/02/1991 | EP0424884A2 Biaxially oriented polyester film for use in floppy disc |
| 05/02/1991 | EP0424411A1 Process for treating metal particles against corrosion and the particles thereby obtained |
| 05/01/1991 | CN1012540B Improved magnetic recording medium curing process |
| 04/30/1991 | US5012377 Homogeneous magnetic head cleaning material |
| 04/30/1991 | US5012376 Tape head cleaner cartridge having a mesh cleaning layer |
| 04/30/1991 | US5012375 Wide-write, narrow-read, single-gap magnetic head |
| 04/30/1991 | US5012374 Recording and/or reproducing apparatus in which the position of head means relative to the record bearing medium is controlled between two positions |
| 04/30/1991 | US5012373 Apparatus for positioning a magnetic head on a head drum |
| 04/30/1991 | US5012372 Head access mechanism for moving heads |
| 04/30/1991 | US5012371 Disk drive crash stop/actuator latch |
| 04/30/1991 | US5012370 Head lifting and damper mechanism for disc drive unit |
| 04/30/1991 | US5012369 Head suspension mechanism of a recording apparatus with a constant flying height |
| 04/30/1991 | US5012368 Magnetic head/support assembly and access mechanism for a disk file |
| 04/30/1991 | US5012367 Removable ball staked head gimbal assembly |
| 04/30/1991 | US5012362 Apparatus for positioning a transducer for recording, reproducing or erasing information on a medium |
| 04/30/1991 | US5012356 Switching circuit |
| 04/30/1991 | US5012355 Rotary head type magnetic recording/reproducing apparatus with read-after-write feature |
| 04/30/1991 | US5011818 Sensing a magnetic field with a super conductive material that exhibits magneto resistive properties |
| 04/30/1991 | US5011714 Controlleld extrusion velocity gives efficiency, quality |
| 04/30/1991 | US5011581 Electrodeposition at cathode |
| 04/30/1991 | US5011395 Surface smoothing apparatus for magnetic recording medium |
| 04/26/1991 | CA2008474A1 Apparatus and method for automatic write current calibration in a streaming tape drive |
| 04/25/1991 | DE4033349A1 Magnetic recording carrier - with ferromagnetic cobalt-chromium-platinum alloy thin film |