| Patents for H01F 13 - Apparatus or processes for magnetising or demagnetising (2,363) |
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| 10/10/1989 | US4873605 Magnetic treatment of ferromagnetic materials |
| 09/26/1989 | CA1260284A2 Cylindrical key shank of magnetic material magnetised by apparatus |
| 07/11/1989 | US4847727 Magnetic memory disc purge erase apparatus |
| 07/05/1989 | CN2040667U Wheel pair bearing heating magnetic eliminator |
| 06/27/1989 | US4843516 Demagnetizing apparatus and method |
| 05/31/1989 | CN2038658U Magnetizing apparatus with multi-pole magnetic ring |
| 05/24/1989 | DE3738401A1 Vorrichtung zur entmagnetisierung von teilen Share apparatus for demagnetization of |
| 05/24/1989 | CN2038273U Multi-function resonance vibration type magnetic field processing unit |
| 05/09/1989 | US4829397 Apparatus for demagnetizing parts |
| 05/09/1989 | US4829214 Cathode ray tube degaussing control circuit |
| 05/09/1989 | US4829211 Method of manufacturing a color display tube having a magnetic quadrupole post-focusing mask and a color display tube made by the method |
| 04/18/1989 | US4823081 Interference magnetic field compensation method which includes supplying a current to a coil to compensate the field |
| 04/11/1989 | CA1252530A1 Injection method and apparatus |
| 03/29/1989 | CN2035135U Energy-saving demagnetiser |
| 03/29/1989 | CN2035134U Apparatus for magnetising or demagnetising |
| 03/28/1989 | US4816965 Increasing the effective service life of object under stress |
| 03/23/1989 | DE3730975A1 Magnetic spring and a method for adjustment |
| 03/22/1989 | EP0307736A1 Method and device for adjusting a trip device with a permanent magnet |
| 01/24/1989 | US4800353 Micropole undulator |
| 01/04/1989 | EP0174322B1 Multipolar magnetization device |
| 12/22/1988 | DE3719306A1 Magnet for NMR tomographs and process for the production thereof |
| 12/21/1988 | EP0295263A1 Magnetic treatment of ferromagnetic materials |
| 12/13/1988 | CA1246661A1 Magnetic assemblies |
| 11/08/1988 | US4783715 Automatic high-speed color CRT degaussing system |
| 11/01/1988 | US4782437 Magnetic material biasing method and apparatus |
| 11/01/1988 | US4782293 Process for adjusting the magnetic field strength of permanent magnets |
| 10/18/1988 | US4779069 Apparatus and method for making integral coaxial communication and rotor magnets |
| 10/05/1988 | EP0284615A1 Magnetic material biasing method and apparatus. |
| 09/14/1988 | CN88210035U Magnetizing treating device for fuel |
| 09/13/1988 | US4771358 Magnetic chuck controller |
| 09/08/1988 | DE3706613A1 Magnetisation device and a method for its production |
| 09/07/1988 | EP0281198A1 Method of manufacturing a colour display tube having a magnetic quadrupole post-focusing mask and a colour display tube made by the method |
| 08/24/1988 | CN87211364U Continuous demagnetising apparatus |
| 08/18/1988 | DE3803338A1 Einrichtung und verfahren zum entmagnetisieren Means and methods to demagnetize |
| 08/17/1988 | CN87217106U Magnetizing apparatus with multiple-pole permanent magnetic head |
| 07/26/1988 | US4760489 Video display degaussing apparatus |
| 07/20/1988 | EP0274854A1 Cathode ray tube degaussing control circuit |
| 07/05/1988 | CA1238764A1 Production of chlorine dioxide |
| 06/28/1988 | US4754177 Device for magnetic pulse treatment of ferromagnetic material |
| 06/22/1988 | CN87203438U 流体磁化装置 Fluid magnetization device |
| 06/21/1988 | US4752758 Demagnetization apparatus for magnetic markers used with article surveilliance systems |
| 06/14/1988 | US4751608 Bulk degausser |
| 06/07/1988 | US4749978 Magnet for catching thereon foreign bodies within reticulum or ruminant, and method and instrument for manufacture thereof |
| 06/07/1988 | US4748834 Key made of magnetic material |
| 06/01/1988 | DE3639934A1 Vessel for magnetisation |
| 05/31/1988 | US4748535 Method of magnetizing rotor of motor |
| 05/25/1988 | CN87107714A Non-inductive demagnetizing machine with rotating permanent magnet |
| 05/25/1988 | CN86107654A Electric and magnetic mixed excitation system |
| 05/05/1988 | DE3725494A1 Bottle for drinks - with bonded permanent magnet for magnetic field treatment |
| 04/27/1988 | EP0265095A2 Apparatus for erasing magnetic tape |
| 04/12/1988 | US4737753 Multipolar magnetization device |
| 03/29/1988 | US4734816 Demagnetizing device especially for naval vessels |
| 03/23/1988 | CN86100458B Demagnetization device for pm |
| 03/02/1988 | EP0257767A1 Improved demagnetization apparatus for magnetic markers used with article surveillance systems |
| 02/23/1988 | CA1233040A1 Magnetic key and apparatus for magnetising and identifying same |
| 02/17/1988 | CN87101641A Device for magnetizing layers, tapes, bands or foils containing magnetizable materials |
| 02/11/1988 | DE3625621A1 Arrangement for demagnetisation |
| 11/17/1987 | US4707677 Multipolar magnetization device |
| 11/04/1987 | EP0243564A2 Method and device for demagnetizing steel |
| 10/29/1987 | DE3613732A1 Compensation method |
| 10/06/1987 | CA1227654A1 Magnetic locking pins for locksets |
| 09/23/1987 | EP0237950A1 Method and apparatus for deactivating targets used in electromagnetic type article surveillance systems |
| 09/11/1987 | WO1987005435A1 Magnetic treatment of ferromagnetic materials |
| 09/10/1987 | DE3606251A1 Device or method for producing a magnetic flux, which is interrupted periodically for a relatively long period, for the purpose of releasing usable energy from hysteresis materials or permanent magnets |
| 08/25/1987 | US4689590 Demagnetization apparatus for magnetic markers used with electromagnetic article surveillance systems |
| 08/19/1987 | CN86206632U Conjugate rotating magnetic field demagnetiser |
| 08/18/1987 | US4687044 Injection method and apparatus |
| 08/04/1987 | US4684930 Method and apparatus for deactivating targets used in electromagnetic type article surveillance systems |
| 07/21/1987 | US4682137 Magnetizing apparatus for the magnetization of keys and rotors of magnetic safety lock systems |
| 07/09/1987 | DE3538022A1 Appliances for magnetising liquids |
| 07/07/1987 | US4678634 Method for the preparation of an anisotropic sintered permanent magnet |
| 07/07/1987 | US4678616 Method of producing permanent magnet |
| 06/30/1987 | US4676168 Magnetic assemblies for minesweeping or ship degaussing |
| 06/23/1987 | CA1223303A1 Treating ferromagnetic materials to increase wear resistance |
| 06/11/1987 | DE3543678A1 Demagnetisation apparatus |
| 06/09/1987 | US4672345 Degausser/demagnetizer |
| 04/15/1987 | EP0218044A1 Device for the magnetization of layers, tapes, ribbons or sheets comprising magnetizable material |
| 04/09/1987 | DE3535392A1 Device for magnetising liquids |
| 04/08/1987 | EP0217712A1 Demagnetizing device, particularly for ships |
| 04/01/1987 | CN86103829A Injection method and apparatus |
| 03/03/1987 | US4648004 Methods for detecting a magnetic preorientation in mechanical parts and for magnetizing the parts utilizing such detection method, and an associated device for magnetizing the parts in accordance with these methods |
| 02/05/1987 | DE3527035A1 Method and device for magnetizing permanent-magnet rotors |
| 02/04/1987 | EP0210643A1 Device for treating ferromagnetic materials with magnetic pulses |
| 02/03/1987 | CA1217526A1 Desensitizer for ferromagnetic markers used with electromagnetic article surveillance systems |
| 01/31/1987 | CN86100458A Demagnetization method and device for pm |
| 01/27/1987 | US4639821 Degausser/demagnetizer |
| 01/20/1987 | US4638280 Multipolar magnetizing device provided with cooling means |
| 12/24/1986 | CN85105029A Rapidly auto-magnetizing demagnetizing apparatus controlled by scr |
| 11/20/1986 | EP0202033A1 A degaussing apparatus |
| 11/05/1986 | EP0200572A2 Injection method and apparatus |
| 11/05/1986 | EP0151144B1 Improvements in or relating to magnetic assemblies |
| 11/04/1986 | US4621299 High energy degausser |
| 10/22/1986 | EP0198491A1 A method for the preparation of an anisotropic sintered permanent magnet |
| 10/14/1986 | US4617603 Degaussing system for bulk demagnetization of previously magnetized materials |
| 10/01/1986 | CN85107389A Method of manufacturing a colour display tube and device for carrying out this method |
| 09/30/1986 | US4614929 Method for manufacture of magnet |
| 09/12/1986 | WO1986005313A1 Device for demagnetization of parts |
| 08/19/1986 | US4607310 For use in cancelling the magnetic bias of a magentizable workpiece |
| 08/05/1986 | US4604042 Apparatus for producing anisotropic magnets |
| 07/30/1986 | CN85100977A Technical improvement for eliminating magnetism of generator and protection from overvoltage of rotation |