Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
11/1993
11/18/1993EP0570008A2 Sliding type magnetic head for magneto-optical recording
11/18/1993EP0569771A1 Metal thin film type magnetic recording medium
11/18/1993EP0569610A1 Method and apparatus for determining the tape position for a tape using dedicated servo format
11/18/1993EP0569593A1 Disc device
11/18/1993EP0569547A1 Microstructure array and activation system therefor
11/18/1993EP0563267A4 Rotary inertial latch for disk drive actuator
11/17/1993CN1078567A Thin film heads with multiple yokes
11/17/1993CN1078564A Computer-controlled multi-media processing device
11/16/1993US5262915 Magnetic head comprising a soft magnetic thin film of FeNiZrN having enhanced (100) orientation
11/16/1993US5262914 Magnetoresistive head with enhanced exchange bias field
11/16/1993US5262911 Apparatus and method for mounting transducer heads in a hard disk drive
11/16/1993US5262908 Tracking control device for magnetic recording/reproducing apparatus
11/16/1993US5262907 Hard disc drive with improved servo system
11/16/1993US5262905 For evaluating a scanning locus of a rotary head
11/16/1993US5262904 Method and apparatus for measuring and compensating nonlinear bitshift
11/16/1993US5262248 For use with magnetic tape heads, variable nitrogen composiition, higher saturation, minimum magnetostriction
11/16/1993US5262219 Composite film having slippery, electrically conducting surface
11/16/1993CA1324440C Recording head to minimize undershoots in readback pulses
11/16/1993CA1324438C Center of percussion head actuator assembly
11/11/1993DE4314167A1 Pendular positioner, e.g. for magnetic diskette drive - has moving coil at end of pendular arm swinging in air gap between flat permanent magnet and upper yoke
11/10/1993EP0568966A2 Thin film magnetic heads with multiple yokes
11/10/1993EP0568965A2 Assembly of headstacks in disk drives
11/10/1993EP0568719A1 Magnetic materials
11/10/1993EP0363468B1 Magnetic recording device using circumferentially offset heads with double sided media
11/10/1993EP0240529B2 Compositions of particulate magnetic oxides with a structure of the lacunar spinel type, preparation and application thereof
11/10/1993CN1078325A Megnatic head
11/10/1993CN1078324A Method and apparatus for magnetic transducing
11/09/1993US5260847 Sleeveless rotatable beryllium/aluminum actuator arm for a magnetic disc drive
11/09/1993US5260846 Compact hard disk assembly having a head carriage positioning arts located within the outer circumference of a hard disk
11/09/1993US5260845 Magnetic head having a thin film conductor coil assembly formed separate from a magnetic head core
11/09/1993US5260843 Magnetic recording and reproducing apparatus with individual correction of amplitude variations of recording currents supplied to plural rotary magnetic heads
11/09/1993US5260840 PCM signal recording system
11/09/1993US5260836 Apparatus for reproducing digital and analog audio signals
11/09/1993US5260652 Magnetoresistive sensor with electrical contacts having variable resistive regions for enhanced sensor sensitivity
11/09/1993US5260136 Magnetic recording medium comprising a cured dispersion coating of sulfonated hydroxy-functional polyurethane binder and magnetizable pigment
11/09/1993US5260132 Nickel, iron and cobalt alloy particles coated with ferrite, improved corrosion resistance
11/09/1993CA1324149C Class of dispersants for magnetic recording coatings
11/04/1993DE4313952A1 Supported magnetic recording material - having non magnetic support and magnetic pigment with polyurethane binder prepd. from di:isocyanate and polyester poly:ol
11/04/1993DE4313514A1 Magnetic recording medium with increased dispersion stability
11/04/1993DE4313513A1 Magnetic recording medium with uniform charging across pigment surface
11/04/1993DE4214273A1 Prodn. of magnetic recording material - by casting dispersion of magnetic pigment and binder onto substrate in presence of calculated amt. of dispersion stabiliser
11/03/1993EP0568257A1 Data transfer head
11/03/1993EP0568252A1 Transducer assembly and data recording disk file incorporating same
11/03/1993EP0568008A1 Laminated polyethylene 2,6-naphthalate film
11/03/1993EP0567974A1 Laminated film
11/03/1993EP0567973A1 Biaxially oriented laminated polyester film for magnetic recording media
11/03/1993EP0567972A1 Method for producing magnetic recording medium
11/03/1993EP0567963A1 Information recording and reproducing apparatus of the rotary head type
11/03/1993EP0567748A1 Fabrication and applications of rough silicon surfaces
11/03/1993EP0567657A1 Magnetic recording medium and production method thereof
11/03/1993EP0563246A4 Recording media containing (fluorinated phenoxy) (3-perfluoroalkylphenoxy)-cyclic phosphazene lubricant
11/03/1993EP0333828B1 Process for production of magnetic media
11/03/1993CN2145429Y Recorder and its tape with corresponding enlarge capacity
11/03/1993CN1022650C Recording device for recording optically detectable information pattern on record carrier
11/03/1993CN1022649C Method and apparatus for magnetic transducing
11/02/1993US5258940 Distributed arithmetic digital filter in a partial-response maximum-likelihood disk drive system
11/02/1993US5258884 Magnetoresistive read transducer containing a titanium and tungsten alloy spacer layer
11/02/1993US5258883 Thin-film magnetic head
11/02/1993US5258879 Tracking error detection circuit of magnetic recording and reproduction apparatus for determining tracking error based on pilot signals recorded on a recording meedium
11/02/1993US5258876 Zone bit recording with write compensation
11/02/1993US5258781 One-step encapsulation, air gap sealing and structure bonding of thermal ink jet printhead
11/02/1993US5258237 Multilayer element
11/02/1993US5258231 Magnetic recording medium having ferromagnetic powder, a binder containing a specified vinyl chloride copolymer, polar group containing polyurethane resin and a fatty acid amide
11/02/1993US5258223 Magnetic recording medium
11/02/1993CA1323926C Hand-operated low cost magnetic character recognition system
10/1993
10/31/1993CA2095167A1 Laminated polyethylene 2, 6-naphthalate film
10/31/1993CA2094434A1 Biaxially oriented laminated polyester film for magnetic recording media
10/31/1993CA2090708A1 Combination transducer/slider/suspension and method for making
10/29/1993CA2094948A1 Laminated film
10/28/1993WO1993021629A1 Precision-etched textured stop/start zone for magnetic-recording disks
10/28/1993WO1993017829A3 System and method for texturing magnetic data storage disks
10/28/1993DE4313218A1 FM signal processor with cosine equaliser - which has two output terminals and processes input signal with two different parameters
10/28/1993DE4213060A1 Magnetic recording medium prodn.
10/27/1993EP0567279A1 Laminated polyester film and magnetic recording medium using it as base film
10/27/1993EP0567134A1 Frequency control system in an audio device
10/27/1993EP0567097A1 A magnetic head
10/27/1993EP0567084A1 Polyester film for high density magnetic recording tape
10/27/1993EP0566989A2 Magneto-optical disc apparatus
10/27/1993EP0373179B1 Inline magnetic head assembly for use in a cassette loaded recorder
10/26/1993US5257255 Recording and/or reproducing apparatus with sensor for detecting head speed or acceleration
10/26/1993US5257154 Recording medium disk with clearance for adhesive bond
10/26/1993US5257151 Disc-drive with a rim-motor
10/26/1993US5257149 Disc drive with offset address field
10/26/1993US5257148 Method and apparatus for positioning a magnetic head in a magnetic layer memory system using tracking by reading a spaced pair of corresponding subtracks
10/26/1993US5257147 Method for setting tracking data of variable speed modes in a video tape recorder
10/26/1993US5257146 Magnetic head swing clamp and cross-talk eliminator for read/write preamplifier
10/26/1993US5257107 Digital signal recording system for recording digital signals on video tape
10/26/1993US5257093 Apparatus for measuring nanometric distances employing frustrated total internal reflection
10/26/1993US5256965 Quality inspecting method and apparatus for detecting defects in magnetic disks by dividing a plurality of concentric tracks into numbered sectors
10/26/1993US5256850 Azimuth adjusting method for magnetic head
10/26/1993US5256606 Metal oxides consisting of lead oxide, silicon oxide, alkali metal oxide, zinc oxide, tellurium oxide and titanium oxide; waterproofing, durability, low glass transition temperature
10/26/1993US5256497 Magnetic tape containing abrasives
10/26/1993US5256481 High density recording
10/26/1993US5256479 Ferromagnetic ultrafine particles, method of making, and recording medium using the same
10/26/1993US5256471 Composite polyester film
10/26/1993US5256266 Alumina material useful with thin film heads
10/26/1993US5256249 Method of manufacturing a planarized magnetoresistive sensor
10/26/1993CA1323695C Recording heads with side shields
10/26/1993CA1323692C Pcm audio signal recording and/or reproducing apparatus
10/26/1993CA1323527C Process for fabricating thin film magnetic recording heads having precision control of the width tolerance of the upper pole tip