| Patents for H01F 13 - Apparatus or processes for magnetising or demagnetising (2,363) |
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| 11/21/1995 | US5469321 Magnetizing device having variable charge storage network and voltage control |
| 10/31/1995 | US5463523 Zero field degaussing system and method |
| 06/28/1995 | CN2202350Y Pulse magnetizing water heater |
| 06/27/1995 | US5428332 Magnetized material having enhanced magnetic pull strength and process and apparatus for the multipolor magnetization of the material |
| 06/13/1995 | US5424703 Magnetization of permanent magnet strip materials |
| 06/07/1995 | EP0591309B1 Method for automatically monitoring and controlling the degaussing of a naval vessel |
| 05/24/1995 | CN1102905A Magnetic energy-saving serial device for vehicles |
| 05/17/1995 | CN2197732Y Monopolar permenant magnetizer |
| 05/16/1995 | US5416664 Degaussing technique |
| 04/05/1995 | EP0646548A2 Magnetic circuit and a magnetization processing apparatus |
| 03/30/1995 | CA2133183A1 Combustion method of hydrocarbon fuels, fuel modifying apparatus, magnetic field sweeping apparatus, magnetic resonance apparatus, magnetizer, magnetization-processing method, andchemical-reaction-controlling method |
| 03/29/1995 | EP0645787A1 Process and device for creating in an object one or several magnetic fields in different directions or treating time variable fields |
| 03/23/1995 | WO1995008177A1 Device and method for deactivating magnetic security strips |
| 03/21/1995 | US5399311 Radial anisotropic ring magnet with a sinusoidal waveform and producing method thereof |
| 03/15/1995 | CN2192070Y Ring magnetic field demagnetizing machine |
| 03/15/1995 | CN1100196A Freshness retaining device for refrigerator |
| 03/08/1995 | EP0639292A4 Magnetization of permanent magnet strip materials. |
| 03/08/1995 | EP0636272A4 Magnetized material having enhanced magnetic pull strength and a process and apparatus for the multipolar magnetization of the material. |
| 02/22/1995 | EP0639839A1 Device for magnetising or demagnetising metal workpieces |
| 02/22/1995 | EP0639292A1 Magnetization of permanent magnet strip materials. |
| 02/22/1995 | CN1099214A Method for the manufacture of a degaussing coil, and coil obtained by this method |
| 02/09/1995 | DE4423992A1 Electromagnetic generator for fast current and magnetic field pulses, for example for use in magnetic conversion technology |
| 02/01/1995 | EP0636272A1 Magnetized material having enhanced magnetic pull strength and a process and apparatus for the multipolar magnetization of the material |
| 01/11/1995 | EP0633436A1 Freshness retaining device for refrigerator |
| 01/07/1995 | CA2121193A1 Freshness retaining device for refrigerator |
| 12/28/1994 | CN1027143C Permanent-magnetic rotary vibrating demagnetizing cleaning machine |
| 12/20/1994 | US5374915 Magnetizing device for permanent magnet rings that are bipolar on the end faces or multipolar on the lateral faces |
| 12/14/1994 | CN2185264Y Electromagnetic magnetizer |
| 10/12/1994 | CN2179379Y Stock magnetizer |
| 09/14/1994 | EP0615270A1 Procedure for the manufacture of a demagnetising coil und a coil produred by this procedure |
| 08/24/1994 | CN2175460Y Demagnetising machine of rotation permanent magnetism disc type |
| 07/28/1994 | DE4301771A1 Permanent magnet foil magnetising device |
| 07/27/1994 | CN1090086A Electromagnetic heating magnetic eraser |
| 06/23/1994 | WO1994014175A1 Method for the fabrication of magnetic materials |
| 06/23/1994 | DE4316671C1 Vorrichtung zur Magnetpulverprüfung mit berührungsloser Magnetisierung Apparatus for magnetic particle inspection with noncontact magnetization |
| 06/22/1994 | CN2169902Y Compound permanent magnet adjustable double arm disc type demagnetizer |
| 06/15/1994 | CN2169190Y Magnetizer for coiled magnetic conductor |
| 06/07/1994 | US5319335 Apparatus for magnetizing a magnetic roller |
| 06/01/1994 | CN2167432Y Apparatus for demagnetising |
| 06/01/1994 | CN2167431Y Electric permanent magnetic rotation disc |
| 05/25/1994 | CN1087198A Technique for forming single-pole magnetic field with pole boundary in violent strain space |
| 05/18/1994 | EP0597181A1 Method and device for demagnetizing of magnetic materials |
| 05/11/1994 | EP0596353A2 Method for manufacturing magnetisable bodies with preferred orientations |
| 05/04/1994 | CN2164095Y Pulse eraser |
| 04/21/1994 | DE4335080A1 Demagnetisation appts. including AC control relay and driver circuit - cuts off AC from demagnetising coil when driver transistor is blocked by rise of DC voltage on charged capacitor |
| 04/06/1994 | CN2160980Y Weak magnetic field demagnetizer |
| 04/05/1994 | US5300391 Field assisted processes for preparing imaging members |
| 02/24/1994 | DE4227503A1 Permanent magnet system for generating homogeneous field - has single element with variable field direction dependent upon position and produced within controlled field |
| 02/22/1994 | US5288454 Powder metallurgy, cold compression, sintering, magnetizing |
| 02/16/1994 | CN2156574Y Electric instrument integral magnetization and demagnetization machine |
| 02/15/1994 | US5287242 Degaussing apparatus |
| 02/01/1994 | US5283130 Thermomagnetically patterned magnets and method of making same |
| 01/12/1994 | EP0577807A1 A device for activating or deactivating an antitheft device |
| 01/05/1994 | CN2152341Y Multifunction repairing machine |
| 12/22/1993 | CN2150614Y Controller for regulating degauss and magnetic strength of disk |
| 11/30/1993 | US5267119 Electric permanent magnet chuck control |
| 11/25/1993 | WO1993023859A1 Magnetization of permanent magnet strip materials |
| 11/10/1993 | CN2146047Y High efficient drum magnetizer |
| 10/28/1993 | WO1993021643A1 Magnetized material having enhanced magnetic pull strength and a process and apparatus for the multipolar magnetization of the material |
| 10/26/1993 | US5257158 Apparatus for magnetizing and demagnetizing a tool |
| 10/13/1993 | CN2143810Y Screw moving permanent magnet demagnetising device |
| 10/07/1993 | DE4239491A1 Bi- or multi-polar permanent magnet ring magnetising device - induces current pulse in conductor rings on ends or sides of magnet ring whose magnetic field magnetises ring |
| 09/01/1993 | CN2141591Y High-change magnetic field generator |
| 09/01/1993 | CN2141590Y Strength time adjustable energy-saving magnetic eliminating machine |
| 08/18/1993 | EP0555563A2 A method for thermomagnetic encoding of permanent magnet materials |
| 08/05/1993 | WO1993015484A1 A device for activating or deactivating an antitheft device |
| 07/28/1993 | EP0553040A1 Remanent induction trimming method for a sintered magnet and product thus obtained |
| 07/28/1993 | EP0552359A1 A premagnetizing head. |
| 07/24/1993 | CA2087230A1 Method for controlling the remanent magnetization of a sintered magnet and product obtained with said method |
| 06/23/1993 | CN2137018Y Controllable polar palm magnetizing apparatus |
| 06/09/1993 | CN2135820Y Liquid magnetizer |
| 06/01/1993 | US5216326 Injection molded printed circuit degauss coil |
| 05/26/1993 | CN1020988C Method of manufacturing colour display tube and device for carrying out this method |
| 05/19/1993 | EP0542521A2 Radial anisotropic ring magnet and producing method thereof |
| 05/18/1993 | US5212344 Developing apparatus and manufacturing method of developing roller |
| 05/12/1993 | CN2133034Y Magnetizer for particulated or powder material |
| 05/12/1993 | CN2132463Y Hanging mag-mining healthy utensil |
| 05/04/1993 | CA1317205C Magnetic treatment of ferromagnetic materials |
| 04/21/1993 | CN2130280Y Strong-pulse magnetizing instrument |
| 04/20/1993 | US5204801 Degaussing technique |
| 04/20/1993 | US5204569 Anisotropic magnet for rotary electric machine |
| 04/07/1993 | CN2129120Y Strong magnetization device with multi-magnetic-field |
| 04/06/1993 | US5200729 Permanent magnet and magnetization apparatus for producing the permanent magnet |
| 03/11/1993 | DE4129456A1 Helmholtz degausser for ferromagnetic components - generates rotating electromagnetic field using coils mounted on gimbal unit, with frequency and field strength adjusted by computer |
| 03/04/1993 | WO1993004441A1 A premagnetizing head |
| 03/03/1993 | CN1069614A Magnetic field compensation apparatus |
| 03/03/1993 | CN1069430A Permanent magnet rotary magnetovibration cleaning machine for demagnetization |
| 02/23/1993 | US5189590 For controlling magnetic signatures surrounding a three dimensional space |
| 02/16/1993 | US5187462 Multiple magnet assembly for use with electromagnetic article surveillance markers |
| 02/09/1993 | US5185688 Split core degaussing coil loop |
| 01/07/1993 | WO1993000257A1 Method for automatically monitoring and controlling the degaussing of a naval vessel |
| 12/30/1992 | CN2126073U Acupuncture needle magnetizing box |
| 12/23/1992 | WO1992022916A1 Means for reducing or eliminating fields of remanent magnetism |
| 12/23/1992 | CN1067329A Magnetizing method for multi-pole magnetic stripe |
| 12/23/1992 | CN1067328A Magnetizing method for enhancing magnetic-field intensity of magnetic stripe |
| 12/10/1992 | DE4217302A1 Screened chamber with active screening for medical measuring appts. - measures magnetic field using induction coil around room and applies appropriate compensation current to coils to cancel LF interference field |
| 12/01/1992 | US5168195 For a picture |
| 11/26/1992 | DE4116527A1 Large vol. reduction appts. for magnetic fields, pref. of low frequency - measures magnitude, direction and time variation of field and generates compensating field accordingly |
| 11/25/1992 | CN2123110U Magnetic pole track treatment device |
| 10/21/1992 | EP0284615B1 Magnetic material biasing method and apparatus |