Patents for H01F 41 - Apparatus or processes specially adapted for manufacturing or assembling the devices covered by this subclass (27,155) |
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12/10/1987 | DE3618144A1 Arrangement for winding filter coils |
12/09/1987 | EP0248665A2 Rare earth-iron magnet and method of making same |
12/08/1987 | US4711694 Process for producing a layer having a high magnetic anisotropy in a ferrimagnetic garnet |
12/08/1987 | US4711019 Method of making core laminations, and punch die for carrying out the method |
12/03/1987 | WO1987007425A1 Method for the preparation of permanent magnets by division of crystals |
12/01/1987 | USH383 Laminated magnet field coil sheath |
12/01/1987 | US4709847 Device for assembling electrical components on a terminal carrier plate |
12/01/1987 | US4709471 Method of making a magnetic core |
12/01/1987 | US4709470 Method and apparatus for fabricating a curved magnet coil |
11/25/1987 | EP0246827A1 Apparatus for fabricating a high voltage winding for a toroidal transformer |
11/25/1987 | CN87201995U 镇流器 Ballast |
11/25/1987 | CN87103615A Apparatus and method for fabricating high voltage winding for toroidal transformer |
11/24/1987 | US4709221 Sheet coil |
11/24/1987 | US4708976 Polymer compositions containing magnetically susceptible filler |
11/17/1987 | US4707678 Consolidated magnetic core containing amorphous metal |
11/17/1987 | US4707313 Ferrous metal, dielectrics, spraying |
11/17/1987 | CA1229390A1 Transformer and process for its fabrication |
11/11/1987 | EP0244968A2 Method for the thermal treatment of sintered metal permanent magnets |
11/11/1987 | EP0244923A2 Method of winding a field coil with flattened round wire and field coil produced by said method |
11/10/1987 | US4706058 Miniature inductor with molded cover |
11/10/1987 | US4705613 Sputtering method of making thin film head having improved saturation magnetization |
11/10/1987 | US4705578 Method of constructing a magnetic core |
11/10/1987 | US4705566 Polishing composition for memory hard disc |
11/10/1987 | US4704789 Method of manufacturing electromagnetic members |
11/10/1987 | CA1229066A1 Thermally controlled sputtering of high anisotrophy magnetic material |
11/05/1987 | DE3615037A1 Arrangement in the production of coil formers for SMD coils |
11/04/1987 | EP0243627A1 Electro-deposited CoNiFe alloy for thin film heads |
11/03/1987 | US4704592 Chip inductor electronic component |
11/03/1987 | US4704199 Method of forming an iron oxide film by reacting sputtering with control of a glow discharge by monitoring an emission spectrum of iron from the glow discharge |
10/28/1987 | EP0242536A1 Device for winding coils on annular cores |
10/28/1987 | CN87103212A Magnetic recording carrier |
10/27/1987 | US4702935 Production method of a high magnetic permeability alloy film |
10/27/1987 | US4702794 Production of thin film magnetic head |
10/27/1987 | CA1228572A2 Sputtering device suitable for perpendicular recording medium |
10/22/1987 | WO1987006196A1 Transfer medium |
10/22/1987 | DE3612803A1 Wire winding machine, especially an armature winding machine |
10/21/1987 | EP0241964A1 Conical coiling of wire on a spool with at least one conically formed flange |
10/20/1987 | US4701735 Bobbins for electrical coils and method of manufacturing electrical coils therefrom |
10/20/1987 | US4701385 Ion-implanted magnetic bubble device and a method of manufacturing the same |
10/14/1987 | EP0241190A2 Method and apparatus for photodeposition of films on surfaces |
10/14/1987 | EP0240755A1 Heat treating method for obtaining a flat magnetization curve in amorphous cores |
10/13/1987 | US4699702 Process for preparing soft magnetic film of Permalloy |
10/13/1987 | US4699184 Apparatus and method for fabricating a high voltage winding for a toroidal transformer |
10/08/1987 | DE3609896A1 Winding machine |
10/07/1987 | EP0240420A1 A method for manufacturing a continuous-length extruded bar of plastic magnet with circumferentially multipolar magnetization |
10/06/1987 | US4698281 Garnet-type magnetic material high faraday rotation magnetic film containing such a material and process for the production thereof |
10/06/1987 | US4698273 Alternate layers of iron and ferromagnetic iron compounds |
10/06/1987 | US4697752 Coil winding machine |
09/30/1987 | EP0239140A2 Process for producing structured epitaxial films on a substrate |
09/29/1987 | US4696725 Magnetic core and preparation thereof |
09/29/1987 | US4696100 Method of manufacturing a chip coil |
09/29/1987 | CA1227452A1 Perpendicular magnetic recording medium and fabrication |
09/29/1987 | CA1227326A1 Process for making a transformer, transformer thus made, and wheel for winding it coils |
09/24/1987 | WO1987005743A1 A wound transformer core and method of manufacturing same |
09/23/1987 | CN87100530A Permanent magnet made from the rare-earth with very low coercive force transition metal, boron alloy |
09/22/1987 | US4694999 Toroidal winding apparatus |
09/22/1987 | US4694868 Apparatus for manufacturing a disc-shaped curved magnet coil |
09/16/1987 | EP0113783B1 Winding method and winding apparatus therefor |
09/16/1987 | CN87100199A Coil assembly and support system for transformer, transformer employing same and method for manufacture thereof |
09/15/1987 | US4693001 Apparatus for air gapping the armature in a compound spool valve |
09/09/1987 | EP0236213A1 Automatic process for making coils without supporting frame and for mounting them on a printed circuit, and machine for carrying out the process |
09/09/1987 | EP0235809A2 Superconducting dipole electromagnets and process for producing the same |
09/08/1987 | US4691872 For winding a wire through a hole of an object |
09/02/1987 | EP0234476A1 Permanent magnet and process for producing the same |
09/01/1987 | US4690726 Liquid phase epitaxial growth of bismuth-containing garnet films |
09/01/1987 | US4690346 Tape winding machine |
08/27/1987 | WO1987005147A1 Electrical component with inductive and capacitive properties |
08/25/1987 | US4689594 Multi-layer chip coil |
08/25/1987 | US4689590 Demagnetization apparatus for magnetic markers used with electromagnetic article surveillance systems |
08/25/1987 | US4688733 Toroidal core winding apparatus |
08/20/1987 | DE3604784A1 Method and device for producing sections of a metal foil |
08/18/1987 | US4687898 Method of fusing wire to a terminal |
08/18/1987 | US4687608 Composite permanent magnet for magnetic excitation and method of producing the same |
08/12/1987 | EP0232197A1 Method of making an inductive chip-component |
08/12/1987 | EP0231620A2 Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy |
08/12/1987 | CN86201059U Low-power factor mutual-inductor |
08/11/1987 | US4686347 Method for welding amorphous wound cores |
08/06/1987 | DE3603473A1 Method and device for producing magnetic annular cores (toroidal cores) |
08/04/1987 | US4684438 Process for producing a coil for a magnetic recording head |
08/04/1987 | US4683919 Apparatus and method for fabricating a high voltage winding for a toroidal transformer |
07/30/1987 | WO1987004559A1 Method of manufacturing toroidal coils |
07/28/1987 | US4683012 Magnetic thin film |
07/28/1987 | US4682486 Amorphous alloy toroids |
07/21/1987 | US4680857 Winding method |
07/21/1987 | CA1224548A1 Method of making an electrical transformer |
07/15/1987 | CN86106790A Ferro-silicon-aluminium magnetic film and its manufacturing method and laminated film magnetic head |
07/08/1987 | EP0228352A2 Process for obtaining layers of different magnetic anisotropy properties in epitaxial films of magnetic garnets |
07/07/1987 | US4679020 Superconducting solenoid and method of making same |
07/07/1987 | US4678634 Method for the preparation of an anisotropic sintered permanent magnet |
07/07/1987 | US4678616 Method of producing permanent magnet |
07/07/1987 | US4677743 Winding method |
07/01/1987 | CN86108881A Method and apparatus for dipping articles in the varnish |
06/30/1987 | US4677036 Multilayer-magnetic cores between dielectrics |
06/25/1987 | DE3544974A1 Electromagnet with plug connection |
06/23/1987 | US4675639 Transformer assembly and winding therefor |
06/23/1987 | US4675239 Perpendicular magnetization film |
06/18/1987 | WO1987003738A1 Amorphous metal transformer core and coil assembly and method of manufacturaing same |
06/16/1987 | US4673482 Sputtering apparatus |
06/10/1987 | EP0225316A1 Method and apparatus for winding wedge-shaped segments for an electrical coil of an electrical transformer |
06/09/1987 | US4672348 Electrical coil assembly and terminal therefor |