| 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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| 09/20/1989 | EP0333393A1 Method for preparing magnetic recording medium |
| 09/20/1989 | EP0333347A2 Magnetic read and write head with side shields |
| 09/20/1989 | EP0333285A1 A method for applying a layer to be magnetised, and an object or surface provided with such a layer |
| 09/20/1989 | EP0333128A2 Linear access mechanism and magnetic disk apparatus |
| 09/20/1989 | EP0333101A2 Process for manufacturing magnetic recording material |
| 09/20/1989 | EP0333068A2 Magnetic recording medium |
| 09/20/1989 | EP0332990A2 Particulate magnetic hexaferrite pigments containing potassium from precipitated magnetite, process for their production and their use |
| 09/20/1989 | EP0332784A2 A process of treating magnetic recording media |
| 09/20/1989 | EP0332689A1 Least squares method and apparatus for determining track eccentricity of a disk |
| 09/19/1989 | US4868700 Cleaning device for disc drive unit |
| 09/19/1989 | US4868699 Microfloppy disc drive head cleaner |
| 09/19/1989 | US4868698 Magnetic head |
| 09/19/1989 | US4868697 Magnetic head with constant area wear profile |
| 09/19/1989 | US4868694 Flexure for rotary actuated arm |
| 09/19/1989 | US4868692 Tracking error signal forming circuit |
| 09/19/1989 | US4868691 Recording or reproducing apparatus |
| 09/19/1989 | US4868688 Elongated strip storage apparatus and recorder tape duplicator system utilizing endless tape stored in storage apparatus |
| 09/19/1989 | US4868432 Multi-coil actuator with end cap flux carrier |
| 09/19/1989 | US4868070 Vertical magnetization type recording medium and manufacturing method therefor |
| 09/19/1989 | US4868060 Wear resistance, antistatic, polyisocyanurates |
| 09/19/1989 | US4868046 Magnetic recording mediums comprising a modified vinyl chloride resin binder in at least a magnetic recording layer |
| 09/19/1989 | US4868017 Structure-free application of dispersions to flexible base materials |
| 09/19/1989 | US4868009 Method for uniform deposition of solid lubricant on rigid data storage discs |
| 09/19/1989 | US4867795 Luster coatings |
| 09/19/1989 | US4867101 Apparatus for producing magnetic recording medium |
| 09/19/1989 | US4866836 Method for mounting a magnetic head on a suspension arm |
| 09/19/1989 | CA1259697A1 Actuator arm bearing preload arrangement for a rotary disc drive |
| 09/19/1989 | CA1259696A1 Actuator arm assembly for a disk memory drive |
| 09/19/1989 | CA1259693A1 Tape recording apparatus |
| 09/13/1989 | EP0332520A1 Rotating head recorder provided with a rotatable electrical coupling device |
| 09/13/1989 | EP0332320A2 Method for fabricating magnetic recording poles |
| 09/13/1989 | EP0332200A2 Servo positioning apparatus |
| 09/13/1989 | EP0332079A2 Adaptive equalizer system |
| 09/13/1989 | EP0332056A1 Magnetic disc storage device with position control information recorded on a separate servo surface |
| 09/13/1989 | CN1035575A Method of and apparatus for recording information signal |
| 09/13/1989 | CN1035574A Arranging structure of inverting heads for auto-inverting recorder |
| 09/12/1989 | US4866555 Magnetic head |
| 09/12/1989 | US4866553 Magnetic disk apparatus having a structure suitable for measuring a minute flying weight |
| 09/12/1989 | US4866548 Method and arrangement for precise positioning of a magnetic head to various tracks of a magnetic tape |
| 09/12/1989 | US4866543 Multiple slave video tape reproduction system |
| 09/12/1989 | US4865924 Binder between layers has vinyl chloride copolymer and another resin; audio and video tapes, durability |
| 09/12/1989 | US4865916 Thin protective layer of zinc, copper, tin, or yttrium oxide; durability |
| 09/12/1989 | US4865898 With specific light transmittance and surface roughness |
| 09/12/1989 | US4865878 A soft magnetic film layer and a vertical magnetic film layer are formed on two sides of a nonmagnetic support by sputtering or vacuum deposition; uniform characteristics, high efficiency |
| 09/12/1989 | US4865834 Process for producing plate-like magnetite particles and plate-like maghemite particles |
| 09/12/1989 | US4865703 Particulate magnetic recording media and method of manufacture thereof |
| 09/12/1989 | US4864717 Method of making a digital magnetic head structure |
| 09/12/1989 | CA1259407A1 Magnetic head |
| 09/12/1989 | CA1259405A1 Tape recorder cleaner |
| 09/12/1989 | CA1259404A1 Thermal isolation of the voice coil motor from base plate and carriage guide rails of a disc drive |
| 09/12/1989 | CA1259402A1 Method and apparatus for recording pcm signal |
| 09/08/1989 | WO1989008313A1 Disk drive apparatus |
| 09/08/1989 | WO1989008308A1 Process for recording servo position information embedded in data tracks of rotating record carriers |
| 09/08/1989 | WO1989008306A1 Removable cartridge disc drive with radial arm voice coil actuator |
| 09/08/1989 | WO1989008305A1 Support device for electromagnetic transducer heads |
| 09/07/1989 | DE3806171A1 Thin-film magnetic head with a layered structure for longitudinal magnetisation |
| 09/07/1989 | DE3805787A1 Magnetic recording medium for perpendicular (vertical) data storage and process for its production |
| 09/06/1989 | EP0331054A1 Process for the preparation of acicular alpha-ferric oxide |
| 09/05/1989 | US4864446 Mechanism for guiding head carriage |
| 09/05/1989 | US4864445 Head loading mechanism for recording and/or reproducing apparatus |
| 09/05/1989 | US4864442 Magnetic read/write apparatus |
| 09/05/1989 | US4864436 Rotary head digital audio recording/reproducing apparatus |
| 09/05/1989 | US4864435 Magnetic record erase circuit |
| 09/05/1989 | US4864434 Method for writing a tri-phase servo pattern which provides information for positioning the transducers of a magnetic storage device |
| 09/05/1989 | US4864433 Magnetic recording and reproducing device |
| 09/05/1989 | US4864431 Tape dubbing apparatus in which each of a plurality of slave recorders is operated in synchronism with a master player |
| 09/05/1989 | US4864122 Joint inspection apparatus for determining the size of a gap |
| 09/05/1989 | US4863811 Magnetic recording medium and method of making |
| 09/05/1989 | US4863809 Surface treatment for sliders and carbon coated magnetic media |
| 09/05/1989 | US4863795 Magnetic recording medium |
| 09/05/1989 | US4863793 Magnetic recording medium |
| 09/05/1989 | US4863557 Pattern forming process and thin-film magnetic head formed by said process |
| 09/05/1989 | US4863114 Magnetic tape cartridge identification |
| 09/05/1989 | US4863039 Apparatus and method for handling a flexible disk for testing |
| 08/30/1989 | EP0330398A2 Magnetic read head |
| 08/30/1989 | EP0330356A1 A thin film magnetic medium and method of producing same |
| 08/30/1989 | EP0330121A2 Non-magnetic substrate of magnetic head, magnetic head and method for producing substrate |
| 08/30/1989 | EP0330116A2 Magnetic recording medium |
| 08/30/1989 | CN2043778U Read following device for improving memory |
| 08/29/1989 | US4862437 Magneto-optical recording reproducing, and erasing apparatus having two independent magnetic field applying devices |
| 08/29/1989 | US4862304 Composite magnetic head |
| 08/29/1989 | US4862302 Air bladder apparatus for positioning a magnetic head |
| 08/29/1989 | US4862301 Double cassette tape player |
| 08/29/1989 | US4862296 PCM signal reproducing apparatus with adjustable phase lock loop circuitry |
| 08/29/1989 | US4862294 Disc erasing apparatus for selective erasure of disc tracks |
| 08/29/1989 | US4862292 Digital information signal recording apparatus |
| 08/29/1989 | US4862078 Circuit for detecting defects of a magnetic recording head |
| 08/29/1989 | US4861836 Novel, iodine-containing compound, preparation thereof and block copolymer comprising the same |
| 08/29/1989 | US4861683 Terpolymer of vinyl chloride, vinyl monomer containing hydroxy groups, and vinyl monomer containing quaternary ammonium groups |
| 08/29/1989 | US4861674 Magnetic recording medium |
| 08/29/1989 | US4861662 Protective layer for magnetic disk |
| 08/29/1989 | US4861656 Optical recording medium |
| 08/29/1989 | US4861655 Blend of polyurethane and vinyl chloride terpolymer |
| 08/29/1989 | US4861619 Method for producing magnetic recording medium |
| 08/29/1989 | US4861398 Method for making a thin film magnetic head |
| 08/29/1989 | CA1258904A1 Yoke type magnetic transducer head utilizing a magnetoresistance effect |
| 08/29/1989 | CA1258903A1 Apparatus for recording and/or reproducing an additional information signal |
| 08/24/1989 | WO1989007823A1 Photomagnetic recording method |
| 08/24/1989 | WO1989007522A1 Method for producing rigid magnetic recording disks |
| 08/23/1989 | EP0329395A2 Magnetic recording and playback apparatus |