| Patents for H01F 41 - Apparatus or processes specially adapted for manufacturing or assembling the devices covered by this subclass (27,155) |
|---|
| 04/17/1990 | US4917316 Method and apparatus for winding wire to form coil using hook |
| 04/11/1990 | CN1007521B Permanent magnet made from the rare-earth with very low coercive force transition metal, boron alloy |
| 04/10/1990 | US4915891 Method for producing a noncircular permanent magnet |
| 04/10/1990 | US4915738 Alloy target for manufacturing a magneto-optical recording medium |
| 04/10/1990 | US4915737 Rare earth and cobalt, iron or nickel; three or more intermetallic phases |
| 04/10/1990 | US4914804 Method of making a surface mountable electronic device |
| 04/05/1990 | WO1990003653A1 Magnet molding apparatus and method |
| 04/04/1990 | EP0362035A1 Method of cutting strips for wound core, and apparatus therefore |
| 04/04/1990 | EP0361967A1 Planar inductor |
| 04/04/1990 | EP0361451A1 Process for producing a thin alloy film having high saturation magnetic flux density |
| 04/04/1990 | EP0361308A1 Corrosion-resistant permanent magnet and method for preparing the same |
| 04/04/1990 | EP0361236A1 Magnetic apparatus |
| 04/04/1990 | CN1041059A Method for gaining heat-resisting electric insulation coating layer |
| 04/03/1990 | US4913374 Paying out device |
| 04/03/1990 | CA2000086A1 Thermal conductive material |
| 03/28/1990 | EP0360120A1 Preparation process of a material including a hard magnetic phase from powder components |
| 03/28/1990 | CN1040885A Core and coil assembly for transformer having amorphous steel core and method of making said assembly |
| 03/27/1990 | US4911957 Method of forming ferrite film on particles or fibers |
| 03/27/1990 | US4911627 Apparatus for fabrication of permanent magnet toroidal rings |
| 03/27/1990 | US4910863 Method of making an amorphous metal transformer |
| 03/27/1990 | US4910858 Automatic coil winding and finishing machine |
| 03/22/1990 | WO1990003039A1 Process and winding device for producing complex shaped windings |
| 03/20/1990 | US4908934 Process of producing a foil-roll electronic part |
| 03/14/1990 | CN2054562U Open-close type wrapping model |
| 03/13/1990 | US4908164 Procedure for the production of magnetic plastic laminate |
| 03/13/1990 | US4907731 Dynamic high pressure process for fabricating superconducting and permanent magnetic materials |
| 03/13/1990 | US4907339 Method of construction of a distribution transformer having a coiled magnetic circuit |
| 03/08/1990 | WO1990002408A1 Device for winding a wire onto an annular core |
| 03/08/1990 | DE3828629A1 Vorrichtung zum bewickeln eines ringkerns mit draht Apparatus for wind the wire with a ring nucleus |
| 03/07/1990 | EP0357357A1 Core and coil assembly for a transformer having an amorphous steel core and method of making said assembly |
| 03/07/1990 | EP0356498A1 Process for making an iron body with a winding for generating electromagnetic fields. |
| 03/06/1990 | US4906960 Distribution transformer with coiled magnetic circuit |
| 03/06/1990 | US4905814 Coil configuration for electronic coin tester and method of making |
| 02/28/1990 | EP0356279A1 Process for the obtention of a transparent magnetic material with a high resistance |
| 02/28/1990 | EP0355741A2 Highly oriented permanent magnet and process for producing the same |
| 02/28/1990 | EP0355704A1 Anisotropic rare-earth permanent magnets and method for making same |
| 02/28/1990 | EP0355573A2 Coil winding machine and coil winding method using the same |
| 02/27/1990 | US4904975 Coil Former for a high-voltge transformer |
| 02/27/1990 | US4904973 Foil-roll electronic part |
| 02/27/1990 | US4904543 Compositionally modulated, nitrided alloy films and method for making the same |
| 02/27/1990 | US4904175 Magnetic plastic rotor disk manufacturing apparatus |
| 02/27/1990 | US4903396 Method of making a transformer |
| 02/21/1990 | CN1039832A Oxidation resistant compositions for use with rare earth magnets |
| 02/20/1990 | US4902583 Thick deposited cobalt platinum magnetic film and method of fabrication thereof |
| 02/20/1990 | US4902357 Containing rare earth elements |
| 02/20/1990 | US4901930 Winding apparatus for deflection yoke |
| 02/20/1990 | US4901773 High voltage coil winding machine |
| 02/14/1990 | CN2052935U Low, high, low coil arrangement for superhigh voltage transformer |
| 02/14/1990 | CN1006831B Ferro-silicon-aluminium magnetic film and its manufacturing method and use |
| 02/08/1990 | DE3817467A1 Method for protecting magnets against hydrogen embrittlement |
| 02/07/1990 | EP0354131A2 Ferrite particle plating system and electromagnetic shielding |
| 02/07/1990 | EP0353911A2 Flux spreading thin film magnetic devices |
| 02/07/1990 | EP0353885A2 Perpendicular anisotropy in thin film devices |
| 02/07/1990 | EP0353433A1 Superconducting magnet winding, and process for manufacturing the same |
| 02/07/1990 | CN1039502A Radial direction orientation nd-fe-b permanent magnet ring and the preparation method thereof |
| 02/07/1990 | CN1006745B Miniature inductor and method of manufacture same |
| 02/06/1990 | US4897916 Method for making a tranformer core assembly |
| 01/31/1990 | EP0353029A2 Improvements in laminations |
| 01/31/1990 | EP0352969A2 Plank and frame transformer |
| 01/31/1990 | EP0352924A2 Inductive device |
| 01/31/1990 | EP0197988B1 Winding device |
| 01/30/1990 | US4896839 Apparatus and method for winding a strip of material into an arcuate elongate passage |
| 01/25/1990 | WO1990000804A1 Winding device |
| 01/24/1990 | CN2051771U Winding and slot-jumping mechanism of automatic slot-jumping winding machine |
| 01/17/1990 | EP0350781A2 Magnetic powder material and resin-bonded type magnet |
| 01/17/1990 | EP0350520A1 Noise filter and method of making the same |
| 01/17/1990 | CN1006501B Inductance adjustment for transformers |
| 01/16/1990 | US4894742 Containing entrapped argon |
| 01/16/1990 | US4894098 Process for preparing magnetic layer and magnetic head prepared using the same |
| 01/16/1990 | US4893401 Automatic transformer core assembly system |
| 01/16/1990 | US4893400 Method of making a repairable transformer having amorphous metal core |
| 01/10/1990 | EP0350232A2 Penetrable, epoxy resin composition |
| 01/09/1990 | US4892773 Preparation of amorphous metal core for use in transformer |
| 01/03/1990 | CN1006341B Premagnetization method of premanent-magnet alloy and its product |
| 12/28/1989 | WO1989012902A1 Method of producing permanent magnet |
| 12/27/1989 | EP0348230A2 Process for producing thin film magnetic head |
| 12/27/1989 | EP0348038A2 Manufacturing method of a permanent magnet |
| 12/27/1989 | EP0347758A1 Method and device for winding electric coils |
| 12/27/1989 | CN1038372A Turn-loss method for improving distribution transformer |
| 12/20/1989 | CN1038044A Method and apparatus for producing magnetic-disc |
| 12/19/1989 | US4888512 Surface multipolar rare earth-iron-boron rotor magnet and method of making |
| 12/18/1989 | EP0332614A4 Apparatus for air gapping the armature in a compound spool valve. |
| 12/13/1989 | EP0345771A2 Electromagnetic type fuel injection valve |
| 12/13/1989 | CN2049397U 绕线机 Winder |
| 12/12/1989 | US4887059 Iron core of electromagnet and method of producing the same |
| 12/06/1989 | EP0345092A1 A method for producing a corrosion resistant rare earth- containing magnet |
| 12/06/1989 | CN2049013U Ring coil winding device |
| 12/05/1989 | US4884759 Winding apparatus |
| 12/05/1989 | US4884758 Self-loading wire winding assembly and method |
| 11/29/1989 | EP0343420A1 Apparatus for feeding bundles of laminations |
| 11/29/1989 | CN2048618U Telescopic coil winding mould |
| 11/28/1989 | US4882833 Method and apparatus for mounting coils inside a hollow cylindrical article |
| 11/23/1989 | EP0342468A1 Rail winding |
| 11/21/1989 | US4881984 Radial orientation and compaction by heating an evacuated and sealed container charged with gas-atomized particles of a rare earth metal/fe/b/ alloy |
| 11/21/1989 | CA1263160A1 Nonuniform laser scribing techniques and resulting products |
| 11/21/1989 | CA1263011A1 Method and apparatus for winding double-layer motor coils |
| 11/16/1989 | WO1989011155A1 Process and device for producing coils of resistance wire having a predetermined electrical resistance |
| 11/15/1989 | EP0341435A2 Method of forming a particulate solid ferromagnetic alloy by rapidly quenching |
| 11/14/1989 | US4879804 Method of fabricating a coil |
| 11/09/1989 | DE3912874A1 Trockentransformator mit ummantelten wicklungen, leiter sowie analoge elektrische installationen und verfahren zur herstellung des harzes fuer die ummantelung Dry-type transformer windings coated, conductor and analog electrical installations and process for manufacture of resin for the wrapping |