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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05/23/1984 | EP0108921A1 Toroidal magnetic strip wound core with air gap and method of making such a core |
05/22/1984 | US4450186 Method and device for manufacturing magnetic recording medium |
05/22/1984 | US4449293 Coil winding and inserting machine |
05/22/1984 | US4449291 Method of making a multiple layer coil winding system |
05/16/1984 | EP0108343A1 Method of automatically winding miniature toroidal coils, and device for carrying out the method |
05/15/1984 | US4449111 Transformer |
05/15/1984 | US4448054 Coil winding apparatus |
05/15/1984 | US4447990 Machine for finishing ferrite magnetic pot cores |
05/10/1984 | WO1984001854A1 Adjustable air gap ferrite structures and methods of manufacture |
05/10/1984 | WO1984001853A1 Tunable-inductance magnetically-soft ferrite core structures and methods of manufacture |
05/10/1984 | WO1984001852A1 Inductance tuning means and methods of manufacture |
05/09/1984 | EP0107802A2 Method of manufacturing a resin encapsulated wire or foil type coil, and winding material employed in this method |
05/08/1984 | US4446816 Apparatus for manufacturing a magnetic recording medium |
05/02/1984 | EP0106856A1 Casing, particularly for transformers, and method for manufacturing the casing. |
05/01/1984 | US4446170 Method of manufacturing a magnetic recording film of a thin metallic film type |
05/01/1984 | CA1166709A1 Transformer |
04/24/1984 | US4444550 Permanent magnet mold apparatus for injection molding plastic bonded magnets |
04/18/1984 | EP0105426A1 Coil winding device |
04/17/1984 | US4443294 Process for forming magnetic film pattern |
04/10/1984 | US4441940 Method for producing toroidal tape cores for fault current safety switches and use of such cores |
04/10/1984 | US4441875 Mold apparatus for forming article under influence of magnetic field |
04/10/1984 | US4441874 Apparatus for differential expansion volume compaction |
04/10/1984 | CA1165150A1 Rolled core |
04/10/1984 | CA1165110A1 Magnetic recording medium manufacturing device |
04/04/1984 | EP0104792A1 Method of making an ignition coil core |
04/03/1984 | US4440609 Method of electrodepositing a low coercine force, corrosion-resistant alloy of nickel, iron and boron |
04/03/1984 | CA1164636A1 Termination strips for stick wound coils |
03/27/1984 | US4439294 Reactive ion etching of soft-magnetic substrates |
03/27/1984 | US4439255 Coating with dispersion of inorganic material in binder and heating |
03/27/1984 | CA1164283A1 Magnetic recording medium and process for production thereof |
03/21/1984 | EP0103237A2 Method of making resin-encapsulated coils for transformers |
03/21/1984 | EP0103223A2 Method and apparatus for winding wires |
03/20/1984 | US4438508 Rare-earth metal and transition metal alloy layer |
03/20/1984 | US4438066 Zero to low magnetostriction, high coercivity, polycrystalline, Co-Pt magnetic recording media |
03/13/1984 | CA1163673A1 Method and device for multipolar magnetisation of a strip material |
03/13/1984 | CA1163538A1 Holder for liquid phase epitaxial growth |
03/07/1984 | EP0102261A1 Method of obtaining a coil with a closed magnetic circuit and a permanent magnet for the ignition of combustion engines |
03/07/1984 | EP0101826A1 Method of forming a magnetic layer on a substrate |
03/06/1984 | US4434945 Winding apparatus |
03/06/1984 | CA1163293A1 Apparatus and method of drying a transformer |
02/28/1984 | US4433474 For electromagnetic devices |
02/14/1984 | CA1162113A1 Process for producing magnetic recording medium |
02/08/1984 | EP0100054A2 Magnetic recording medium |
01/31/1984 | US4429007 Coating with slurry of glass, fillers, and binder in solvent, and heating |
01/31/1984 | US4428540 Apparatus for maintaining the relative position between wire being fed onto a bobbin and wire wound about the bobbin for forming a coil of wire |
01/24/1984 | US4427740 Covering a conductive member with porous cycloaliphatic epoxy resin, silicon carbide and curing agent, vacuum pressure impregnation with resin, and heating |
01/17/1984 | US4426265 Cobalt-iron-chromium alloy |
01/10/1984 | US4424939 Apparatus for winding wire around toroidal core |
01/05/1984 | WO1984000077A1 Winding method and winding apparatus therefor |
01/04/1984 | EP0097205A1 Method of winding coils, and coil-winding apparatus |
01/03/1984 | US4424580 Method and apparatus for generating electron spin reversal in ferrimagnetic material |
01/03/1984 | US4424271 Release agent, thin film magnetic tape heads |
12/28/1983 | EP0096809A1 A magnetic circuit or part of a magnetic circuit and a method for preparation thereof |
12/21/1983 | EP0096516A1 Multi-turn inductor and LC network and method of construction thereof |
12/21/1983 | EP0096058A1 Electric transformer and method for making it. |
12/20/1983 | US4420876 Method of coil assembly for hot melt induction heater apparatus |
12/13/1983 | US4419814 Method of making a bobbin construction for autotransformer ballast |
12/08/1983 | WO1983004341A1 A winding machine comprising a wire catching member for the provision of tappings |
12/06/1983 | US4419381 Plasma |
12/06/1983 | CA1158145A1 Electrical steel lamination |
11/29/1983 | US4418241 Insulated coil |
11/29/1983 | US4417701 Method and means for controlling the manufacture of windings for inductive apparatus |
11/29/1983 | US4417699 Apparatus for winding a wire or thread on C-shaped cores |
11/29/1983 | CA1157635A1 Method of manufacturing a pernament magnet which is to be arranged in an air gap of a transformer core |
11/22/1983 | US4416056 Process for preparation of film coils |
11/16/1983 | EP0093931A1 Leakage current release with a wound coil, process for winding the coil and device for carrying out the process |
11/16/1983 | EP0093838A2 Perpendicular magnetic recording medium and method for producing the same |
11/15/1983 | US4415990 Complementary bi-level magnetic bubble propagation circuit |
11/15/1983 | CA1156964A1 Electroplating nickel-iron alloy on complex shape substrate using low density current |
11/10/1983 | WO1983003921A1 Method for manufacturing a casing, particularly for transformers |
11/08/1983 | US4414554 Magnetic imaging apparatus |
11/08/1983 | US4414523 Encapsulated magnet for magnetic drive |
11/08/1983 | US4414287 Magnetic recording medium and its manufacture |
11/08/1983 | US4413406 Processing amorphous metal into packets by bonding with low melting point material |
11/01/1983 | US4412929 Iron oxide particles and glue |
11/01/1983 | US4412507 Magnetic recording medium manufacturing device |
10/27/1983 | WO1983003711A1 Metal oxide patterns with planar surface |
10/26/1983 | EP0092423A2 Method for making permanent magnets of Mn-Al-C alloys |
10/26/1983 | EP0092422A2 Permanent Mn-Al-C alloy magnets and method for making same |
10/25/1983 | US4412201 Coil form and assembly for automated manufacturing operations |
10/25/1983 | US4411757 Formation of electrodes for magnetoresistive sensor |
10/19/1983 | EP0091818A2 Process for the production of a metal oxide patterns with planar surface |
10/18/1983 | US4410565 Method of making a magnetic recording medium |
10/18/1983 | US4410406 Cobalt-nickel-phosphorus alloy |
10/18/1983 | CA1155276A1 Device for adjusting the inductance of a coil |
10/11/1983 | US4408875 Method of projecting circuit patterns |
10/11/1983 | US4408726 Orthocyclic coil winding machine |
10/04/1983 | US4407894 Flexible magnetic tape |
10/04/1983 | US4407859 Multi-level conductor patter<ns |
09/28/1983 | EP0089609A2 Magnetic recording medium and method of manufacturing a magnetic recording medium |
09/27/1983 | US4406056 Method of making a cellulose-free transformer coil |
09/27/1983 | CA1154532A1 Magneto-optical memory element |
09/27/1983 | CA1154507A1 Method of introducing a magnetic core into a coil |
09/21/1983 | EP0088869A2 Thin film techniques for fabricating narrow track ferrite heads |
09/20/1983 | US4405912 Solenoid assembly and method of making same |
09/20/1983 | US4405677 Diffusion or etching of grain boundary layer to enhance particle separation |
09/20/1983 | US4405436 Magnetic pole shields and target of same ferromagnetic material |
09/20/1983 | US4404740 Method for mounting a winding in a transformer |
09/14/1983 | EP0088663A1 Focusing solenoid, its application and manufacturing process |
09/13/1983 | US4404233 Ion implanting method |