| 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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| 09/18/1991 | EP0447081A1 Method of recording servo information |
| 09/18/1991 | EP0447025A1 Magnetic recording media and processes for manufacture thereof |
| 09/18/1991 | EP0446906A2 Method for making magnetic recording media |
| 09/18/1991 | CN2085086U Cyclic megnetic head cleaning belt |
| 09/18/1991 | CN2085085U Information recording or reproducing device |
| 09/18/1991 | CN1054684A Circuit for reversing magnetic field |
| 09/18/1991 | CN1054683A Adjusting mechanism for head position of video tape recorder |
| 09/18/1991 | CN1014007B Ion implantation method for improving magnetism of co-cr film |
| 09/17/1991 | US5050143 Device for optical reading and magnetic writing on a data carrier |
| 09/17/1991 | US5050027 Ferrites separated by gap |
| 09/17/1991 | US5050026 Vertical flat coil for head actuator |
| 09/17/1991 | US5050025 Lead screw and follower-type head positioner for data recorders |
| 09/17/1991 | US5050024 Double azimuth magnetic head with two-piece adjustable base |
| 09/17/1991 | US5050018 Apparatus and method for reading helically recorded tracks and rereading tracks as necessary |
| 09/17/1991 | US5050017 Memory guided magnetic tape tracking |
| 09/17/1991 | US5050016 Disk drive servo system using gain limited high-frequency track-following compensator |
| 09/17/1991 | US5050015 Method and arrangement for reducing wear in a magnetic storage means |
| 09/17/1991 | US5050014 Magnetic recording apparatus for correcting the absolute track position |
| 09/17/1991 | US5050012 High-speed erasing apparatus for use in magnetic recording/reproducing system |
| 09/17/1991 | US5049454 Monocrystalline MnZn-ferroferrite material having a high content of Zn, and a magnetic head manufactured from said material |
| 09/17/1991 | US5049451 High-coercivity thin-film recording medium |
| 09/17/1991 | US5049448 Magnetic recording medium containing an ester lubricant branched from the number 2 carbon position of the acid residue |
| 09/17/1991 | US5049410 Perflurorpolyether |
| 09/17/1991 | US5049404 Method and apparatus for applying ultra-thin coatings to a substrate |
| 09/17/1991 | US5048175 Method for grounding pole structures in thin film magnetic heads |
| 09/17/1991 | CA1289180C Side-vented magnetic head air bearing slider |
| 09/11/1991 | EP0445883A1 Method of producing a thin-film magnetic head as well as a thin-film magnetic head producible by means of the method |
| 09/11/1991 | EP0445732A2 Method of manufacturing titanium magnetic disk substrate |
| 09/11/1991 | EP0445226A1 Magnetic encoding apparatus and method |
| 09/11/1991 | EP0445153A1 Magnetic coating compositions containing fluoropolyols |
| 09/11/1991 | CN1054450A Improved process for sputtering multilayers for magneto-optical recording |
| 09/10/1991 | US5047887 Method and apparatus for cleaning the tape head and tape path of a video cassette recorder using a wetted cleaning tape |
| 09/10/1991 | US5047886 Thin-film magnetic head |
| 09/10/1991 | US5047885 Magnetic head formed of thin metal film including a chevron shape |
| 09/10/1991 | US5047884 Magnetic head having a control portion for generating negative pressure |
| 09/10/1991 | US5047883 Pantograph head mount having double leaves integral with a rigid tip structure |
| 09/10/1991 | US5047882 Rotary head cylinder for video tape recorder |
| 09/10/1991 | US5047876 Adaptive prewrite compensation apparatus |
| 09/10/1991 | US5047873 Split swipe tape recording |
| 09/10/1991 | US5047872 Fast and slow playback method and apparatus for data recorded on magnetic tape |
| 09/10/1991 | US5047297 Chromium base layer containing nitrogen; reduced noise |
| 09/10/1991 | US5047290 Magnetic recording medium |
| 09/10/1991 | US5047278 Polyester film and magnetic recording medium |
| 09/10/1991 | US5047274 Annodized aluminum substrate for a magnetic recording disk in which pores are filled with a non magnetic material and the surface polished and etched |
| 09/10/1991 | US5047161 Magnetic recording media |
| 09/10/1991 | US5047115 Inorganic fluorine, oxidizing, and inert gas mixture |
| 09/10/1991 | US5046863 Dynamic pressure bearing device |
| 09/10/1991 | CA2037621A1 Method of manufacturing titanium magnetic disk substrate |
| 09/10/1991 | CA1288881C Phosphorylated reaction products and compositions incorporating such products |
| 09/05/1991 | WO1991013433A1 Systems using superimposed, orthogonal buried servo signals |
| 09/05/1991 | WO1989006054A3 Method for producing hall effect sensor for magnetic recording head |
| 09/04/1991 | EP0444903A2 Thin-film perpendicular magnetic recording and reproducing head |
| 09/04/1991 | EP0444833A2 Magnetic recording apparatus and magnetic recording method |
| 09/04/1991 | EP0444571A2 Magnetic transfer system |
| 09/04/1991 | CN1013811B Magnetic recording and/or reproducing apparatus |
| 09/03/1991 | US5045961 Thin film magnetic head |
| 09/03/1991 | US5045676 Optical media having interlaced data rings |
| 09/03/1991 | US5045622 Polycarbonate polyol, aromatic polycarbonate polyurethane resin, coating agent, cast film, magnetic recording medium |
| 09/03/1991 | US5045412 Sub-oxide of iron-cobalt alloy, high density, wear resistance |
| 09/03/1991 | US5045390 Magnetic recording medium |
| 09/03/1991 | US5045379 Containing barium ferrite |
| 09/03/1991 | US5045372 Magnetic recording medium containing ferromagnetic metal powder and a specific fatty acid ester in a content dependent upon the specific surface area of the ferromagnetic metal powder |
| 09/03/1991 | US5045351 Kneading ferromagnetic powder with binder |
| 09/03/1991 | US5045165 Method for sputtering a hydrogen-doped carbon protective film on a magnetic disk |
| 09/03/1991 | CA1288543C Magnetic disk |
| 08/28/1991 | EP0443942A1 Manufacturing process for an upper pole piece of a magnetic head and upper pole piece produced by this process |
| 08/28/1991 | EP0443941A1 Hall effect horizontal magnetic head and its production method |
| 08/28/1991 | EP0443847A2 Information recording/reproducing apparatus |
| 08/28/1991 | EP0443840A1 Superparamagnetic fine particles of iron oxide and magnetic recording media containing said particles |
| 08/28/1991 | EP0443810A2 Tracking control device for magnetic recording/reproducing apparatus |
| 08/28/1991 | EP0443584A2 Magnetic disk substrate |
| 08/28/1991 | EP0443553A2 Apparatus and method for recognizing head position information |
| 08/28/1991 | EP0443523A1 Magnetic recording medium |
| 08/28/1991 | EP0443478A2 Magnetic recording medium and method for preparing the same |
| 08/28/1991 | EP0443460A2 Method for manufacture of magnetic head |
| 08/28/1991 | EP0443042A1 Method and apparatus for seek control of disk apparatus |
| 08/28/1991 | EP0260325B1 Diene polymers, process for their preparation, and rubber composition containing them |
| 08/28/1991 | CN2083781U Recorder with electricity charging function |
| 08/28/1991 | CN1054163A Recording arrangement and reproducing arrangement |
| 08/27/1991 | US5043959 Apparatus for developing a magnetic field which maintains a neutral position when the magnetic biasing field is not applied |
| 08/27/1991 | US5043842 Magnetic head core with special gap structure |
| 08/27/1991 | US5043837 Alignment disk for magnetic head azimuth correction |
| 08/27/1991 | US5043835 Method and apparatus for adjusting the position of a magnetic head relative to a recording medium |
| 08/27/1991 | US5043833 Magnetic head assembly |
| 08/27/1991 | US5043831 Erasing device |
| 08/27/1991 | US5043577 Distance-controlled tunneling transducer |
| 08/27/1991 | US5043213 Magnetic disk |
| 08/27/1991 | US5043212 Magnetic recording medium |
| 08/27/1991 | US5043210 Magnetic recording media having two magnetic layers; the first for recording a baseboard signal and the second for recording a superimposed surface and signal |
| 08/27/1991 | US5042140 Process for making an apparatus utilizing a layered thin film structure |
| 08/27/1991 | CA1288011C Magnetic recording medium |
| 08/24/1991 | CA2036719A1 Magnetic disk substrate |
| 08/22/1991 | WO1991012668A1 Process for converting an analog voltage to a digital value |
| 08/22/1991 | DE4102885A1 Impulsformungssystem fuer festplattenlaufwerke Pulse shaping system for fixed disk drives |
| 08/22/1991 | DE4005211A1 Stabilising coercive finely divided chromium di:oxide - by tempering, using gas stream moistened with water, suspending in water and treating with reductant |
| 08/22/1991 | DE4005037A1 Analogue=digital voltage converter - uses binary values representing results of successive comparisons with respective reference voltages |
| 08/22/1991 | DE4004540A1 Ferromagnetic multilayer film with uniaxial magnetic anisotropy - has nickel-iron alloy layer and a second ferromagnetic layer contg. carbon or nitrogen on substrate |
| 08/21/1991 | EP0442760A2 Soft magnetic alloy films and magnetic heads using the same |
| 08/21/1991 | EP0442660A2 Air bearing surface of head core slider, and method of manufacturing it |
| 08/21/1991 | EP0442650A2 Disk file with adaptive correction for nonrepeatable disk runout |