Patents for H01F 13 - Apparatus or processes for magnetising or demagnetising (2,363)
10/1999
10/27/1999CN1233064A Magnetizing method and apparatus for large planar unipolar magnetic material
10/20/1999EP0950250A1 An apparatus for altering the magnetic state of a permanent magnet
10/19/1999US5967669 Rolling bearing unit with rotational speed sensor
09/1999
09/22/1999CN2340069Y Magnetizing apparatus and magnet block
09/15/1999EP0942186A2 Rolling bearing unit with rotating speed sensor
09/08/1999EP0939961A1 Method of manufacturing a device
09/07/1999US5949318 Apparatus for activating/deactivating sensors used with EAS tags
09/01/1999EP0938721A1 Method and apparatus for activating magnetomechanical eas markers while preventing formation of demagnetization field
09/01/1999CN1044942C Apparatus for forming magnetized zones on magnetizable body
08/1999
08/24/1999US5942963 Multiwound coil embedded in ceramic
08/24/1999US5942961 Magnetized material having enhanced magnetic pull strength and a process and apparatus for the multipolar magnetization of the material
08/12/1999WO1999040552A1 Redistributing magnetic charge in bias element for magnetomechanical eas marker
05/1999
05/19/1999CN2319905Y Magnetizing and demagnetizing machine
05/04/1999US5901029 Method of degaussing a color cathode ray tube
04/1999
04/13/1999US5893206 Method for the formation and polarization of micromagnets
03/1999
03/30/1999US5889338 Demagnetizing apparatus for an automotive engine
03/23/1999US5885370 Passing heat treated steel at or lower than curie temperature through strong magnetic field gradient to effect phase transformation
03/09/1999US5878482 Method for the manufacture of a degaussing coil
03/04/1999WO1999010900A1 Multi-functional system for demagnetising ferro-magnetic objects
03/03/1999CN1209675A Magnitizing method for permanent-magnet machine
02/1999
02/18/1999WO1999008294A1 Method of manufacturing a device
02/09/1999US5868832 With coils that produce zero axial field and material between coils that enhances radial field strength while maintaining zero point
01/1999
01/13/1999EP0890179A1 A method of magnetising a cylindrical body
01/12/1999US5858180 Magnetic field generator, coating method and apparatus including same, and devices having coating aligned therewith
12/1998
12/22/1998US5852393 Apparatus for polarizing rare-earth permanent magnets
11/1998
11/18/1998CN1199232A Magnet block assembly for insertion device
11/11/1998EP0877397A2 Magnet block assembly for insertion device
10/1998
10/21/1998CN2295266Y Magnetizing demagnetizing device
10/20/1998US5825604 Demagnetization circuit
09/1998
09/16/1998CN1193170A Mangetizing apparatus and method for ring-shape permanent magnet
08/1998
08/11/1998US5791040 Method for making ceramic tools for the production of micromagnets
08/05/1998EP0856144A2 Position encoder
08/05/1998CN1189676A High efficiency fluid treater
07/1998
07/15/1998CN2286336Y Bar-shape magnetizer for magnetic substance
07/09/1998WO1998029883A1 An apparatus for altering the magnetic state of a permanent magnet
05/1998
05/26/1998US5757272 Elongated member serving as a pulse generator in an electromagnetic anti-theft or article identification system and method for manufacturing same and method for producing a pronounced pulse in the system
05/22/1998WO1998021700A1 Method and apparatus for activating magnetomechanical eas markers while preventing formation of demagnetization field
05/22/1998CA2541740A1 Method and apparatus for activating magnetomechanical eas markers while preventing formation of demagnetization field
05/12/1998US5751206 Degaussing coil
04/1998
04/23/1998DE19637732A1 Method of quality control of permanent magnets
04/15/1998EP0836020A2 Rolling bearing unit with rotating speed sensor
04/09/1998WO1998014963A1 Apparatus and method for material treatment using a magnetic field
04/08/1998EP0834890A1 Method of demagnetizing electro-permanent devices
04/07/1998US5735038 Magnet assembling device
03/1998
03/18/1998EP0829018A1 Magnetizing arrangement for a magneto-resistive thin-film sensor element with a bias layer part
03/11/1998EP0828264A1 Superconducting magnet device and method for adjusting magnetization of the same
02/1998
02/25/1998EP0825622A1 Magnetic field generation
01/1998
01/21/1998CN1037142C Method for manufacture of degaussing coil, and coil obtined by this method
11/1997
11/19/1997CN2268296Y Multi-purpose magnetizing device
11/19/1997CN2268295Y Magnetic eraser
11/04/1997US5684341 Electromagnetic generator for fast current and magnetic field pulses, for example, for use in magnetic metal working
10/1997
10/09/1997WO1997037362A1 A method of magnetising a cylindrical body
09/1997
09/25/1997WO1997035328A1 Superconducting magnet device and method for adjusting magnetization of the same
09/24/1997EP0552359B1 A premagnetizing head
09/09/1997US5666097 Periodic magnetizer
09/03/1997EP0639292B1 Magnetization of permanent magnet strip materials
08/1997
08/26/1997US5660786 Method of manufacturing ferrite magnets for motors
08/20/1997CN2260372Y Demagnetising apparatus connected with work piece channel
08/19/1997US5659280 Apparatus and system for magnetization of permanent magnet cylinder elements
08/19/1997US5659279 Magnetizer holding fixture
08/19/1997US5659278 Superconducting magnet device, magnetizing device and method for superconductor
06/1997
06/25/1997CN2257069Y Magnetic energy fluid activating device
05/1997
05/29/1997WO1997014935A3 Position encoder
05/20/1997US5631093 Magnetically coded device
05/07/1997CN2253863Y Circular iron core electric capacitor energy storage type magnetizing machine
05/06/1997US5628047 Method of manufacturing a radially oriented magnet
04/1997
04/24/1997WO1997014935A2 Position encoder
04/09/1997CN2251778Y Universal strength magnetic tea block
03/1997
03/12/1997EP0762354A1 Elongated bodies as security label for electromagnetic theft security systems
12/1996
12/31/1996US5589039 In-plane parallel bias magnetic field generator for sputter coating magnetic materials onto substrates
12/11/1996CN2242511Y permanent magnetism apparatus for surface magnetising
12/05/1996WO1996038738A1 Magnetizing arrangement for a magneto-resistive thin-film sensor element with a bias layer part
12/05/1996DE19520172A1 Magnetisierungseinrichtung für ein magnetoresistives Dünnschicht-Sensorelement mit einem Biasschichtteil Magnetizing device for a magnetoresistive thin-film sensor element with a bias layer part
11/1996
11/13/1996CN2240189Y Three-pole permanent-magnet surface magnetizing apparatus
11/12/1996US5574616 Degaussing technique
10/1996
10/23/1996CN1033128C Magnetic field compensation apparatus
10/16/1996CN1133480A Magnetic activating method and device
10/02/1996CN1132400A Magnetizing and demagnetizing controller of sucker of grinder
09/1996
09/17/1996US5557493 Method of adjusting linearity
09/17/1996US5557248 For magnetizing a body of material
09/04/1996CN1130290A Demagnetizing device for block mine
07/1996
07/10/1996CN2230970Y Permanent magnetizer
06/1996
06/11/1996US5526221 Degaussing circuit
06/05/1996CN2228684Y Magnetising and demagnetising device
05/1996
05/07/1996US5515020 Premagnetizing head
04/1996
04/03/1996CN2223864Y Permanent magnetic field formation and orientation device of double loop high magnetic conductivity magnetic path type
03/1996
03/27/1996EP0703552A1 Apparatus for deactivation of electronic article surveillance tags
03/26/1996US5502424 Method of magnetizing rotary machine field core unit
03/20/1996CN1118947A Apparatus and method for fastening magnetic body
03/13/1996CN2222396Y Demagnetising device for floppy disc
03/01/1996CA2148749A1 Apparatus for deactivation of electronic article surveillance tags
02/1996
02/28/1996CN2221253Y Half-wave pulse magnetizing device
02/21/1996EP0697683A1 Apparatus for activating/deactivating sensors EAS tags
02/11/1996CA2148564A1 Apparatus for deactivating/reactivating sensors used with eas tags
01/1996
01/31/1996CN2218962Y Energy-saving demagnetising machine
01/31/1996CN2218961Y Automatic demagnetsing device for material path
01/10/1996CN2217258Y High efficiency magnetising energy saving apparatus
01/03/1996EP0690548A1 Method for producing ferrite magnets for motors
12/1995
12/13/1995EP0686984A1 Demagnetisation of materials
11/1995
11/30/1995DE4417903A1 Magnetising device e.g. for electrical permanent magnet rotor machines
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