| Patents for H01F 41 - Apparatus or processes specially adapted for manufacturing or assembling the devices covered by this subclass (27,155) |
|---|
| 06/09/1981 | CA1102922A1 Forming electrically insulating layers |
| 06/02/1981 | US4271232 Amorphous magnetic film |
| 06/02/1981 | US4270264 Method for establishing an electrical contact between a normally conducting contact element and at least one superconductor |
| 06/02/1981 | CA1102183A1 Method of producing magnetic thin film |
| 05/26/1981 | US4269651 Controlling the parameters to provide a heat-resistant resonance frequency when depositing a thin film of single-crystal ferrite on a single-crystal garnet or spinel; ferromagnetism |
| 05/26/1981 | US4269367 Coil winding machine |
| 05/26/1981 | US4269366 Shuttleless toroid winder |
| 05/19/1981 | US4268810 Electrical article having electrical coil and method for manufacturing same |
| 05/19/1981 | US4268584 Nickel-X/gold/nickel-X conductors for solid state devices where X is phosphorus, boron, or carbon |
| 05/19/1981 | US4268541 Process for producing a material having a vapor-deposited metal layer, and process for producing a recording material |
| 05/13/1981 | EP0028494A1 Method for forming laminations for transformer cores |
| 05/13/1981 | EP0028244A1 Wire brake for a winding machine. |
| 05/12/1981 | CA1100722A1 Method for manufacturing synthetic resin packed product assembly |
| 05/05/1981 | US4265684 Magnetic core comprised of low-retentivity amorphous alloy |
| 05/05/1981 | US4265680 Method for making hollow magnetic pipe |
| 04/30/1981 | WO1981001218A1 An inductance coil having a core of magnetic material |
| 04/28/1981 | US4264675 High tolerance coil assembly |
| 04/28/1981 | US4264663 Laminated pack comprising a plurality of closely superposed sheets and method and device for forming the pack |
| 04/21/1981 | US4263374 Temperature-stabilized low-loss ferrite films |
| 04/21/1981 | US4262413 Method and apparatus for making an electrical coil with insulated lead structure |
| 04/15/1981 | EP0027073A1 Process for regulating the dimensions of bubbles in magnetic bubble elements |
| 04/14/1981 | US4262233 Inductors, transformers, magnetometers; stress relieving by heat treatment |
| 04/14/1981 | US4262054 Magnetic bubble memory device |
| 04/14/1981 | US4261097 Removal of any organic material prior to in situ annealing to prevent any formation of graphite |
| 04/08/1981 | EP0026373A1 Winding structure for transformers and inductance coils with one or more windings encapsulated in resin |
| 04/08/1981 | EP0026325A1 A wafer holder for use in growing liquid phase epitaxial films on wafers |
| 04/07/1981 | US4260582 Differential expansion volume compaction |
| 04/02/1981 | WO1981000841A1 A winding machine for winding elongate members or cores and an exchangeable cassette for the wire magazine for such a machine |
| 04/02/1981 | WO1981000840A1 A wire magazine for winding wire for use in a winding machine for the winding of elongate,preferably endless annular members or cores |
| 04/01/1981 | EP0026014A1 Method of manufacturing a permanent magnet assembly which is to be arranged in an air gap of a transformer core |
| 03/31/1981 | US4258467 Method of making transformer |
| 03/24/1981 | CA1098182A1 Method for forming a drive hole in arc plasma spray fabricated ferrite phasors |
| 03/24/1981 | CA1097895A1 Coil placing machine with stack height adjustment |
| 03/17/1981 | US4256781 Recording on a track using a magnetic tape head; catalytically toning; electroless plating a conductive layer |
| 03/17/1981 | US4256268 Coil winding machine to wind saddle-shaped coils |
| 03/17/1981 | US4255868 Method and device for optimally stabilizing the windings of transformers and chokes |
| 03/17/1981 | US4255849 Method for constructing a superconducting magnet winding |
| 03/10/1981 | US4255494 Sintered ferromagnetic powder metal parts for alternating current applications |
| 03/04/1981 | EP0024319A1 Process for making E-shaped core laminations and I-shaped yoke laminations for a choke or transformer, particularly for gas discharge lamps |
| 03/03/1981 | US4253231 Method of making an inductive circuit incorporated in a planar circuit support member |
| 03/03/1981 | CA1096968A1 Method and apparatus for fabrication of magnetic recording media |
| 03/03/1981 | CA1096711A1 Process for producing a material having a vapor- deposited metal layer, and process for producing a recording material |
| 02/24/1981 | US4251911 Method of terminating coil windings |
| 02/17/1981 | US4251319 Bubble memory chip and method for manufacture |
| 02/10/1981 | US4249704 Automatic taping apparatus |
| 02/10/1981 | CA1095219A1 Bobbin and method of making terminated bobbin coil |
| 02/04/1981 | EP0023328A1 Metallic thin film magnetic recording medium |
| 01/21/1981 | EP0022580A1 Advantageous fabrication technique for devices relying on magnetic properties |
| 01/20/1981 | US4246032 Ferromagnetic printing pastes |
| 01/14/1981 | EP0022207A1 Method of manufacturing high tension insulation and method of insulating an electric coil using this insulation |
| 01/13/1981 | US4245008 Multilayer, ferromagnetic material of iron, chromium and optionally cobalt |
| 01/13/1981 | US4244539 Perfect layer coil winding apparatus |
| 01/13/1981 | CA1093690A1 Magnetic recording material having columnar crystals |
| 01/13/1981 | CA1093667A1 Encapsulated electrical inductive apparatus |
| 01/13/1981 | CA1093261A1 Electrical apparatus encapsulated with resin coated filler |
| 01/07/1981 | EP0020936A1 Method of producing a patterned kill of a magnetoresistive layer in a bubble domain chip |
| 01/06/1981 | US4243697 Hexagonal barium hexaferrate single crystals grown on spinel substrate |
| 12/30/1980 | CA1092410A1 Polymeric resist mask composition |
| 12/23/1980 | US4241367 Thin film magnetic head |
| 12/16/1980 | US4239835 Magnetic recording medium |
| 12/16/1980 | US4239805 Substituting two types of nonmagnetic ions for iron ions, resulting in independence of collapse field to variations in growth temperature |
| 12/16/1980 | US4239077 Ultraviolet radiation sensitive photoinitiator and a polymerizable monomer on a paper sheet |
| 12/16/1980 | US4238879 Laminated inductor stacking and calibrating apparatus |
| 12/09/1980 | US4238534 Colloidal silica, monobasic phosphate, fine particle oxide, chromate |
| 12/09/1980 | US4238277 For propagating and detecting magnetic domains |
| 12/09/1980 | US4237602 Method of manufacture of precision transducer for position measurements |
| 12/09/1980 | CA1091313A1 Method of fabricating improved capacitors and transformers |
| 12/02/1980 | US4236946 Amorphous magnetic thin films with highly stable easy axis |
| 11/27/1980 | WO1980002548A1 Wire brake for a winding machine |
| 11/25/1980 | CA1090086A1 Method for producing a magnet plate for electroacoustic transducers |
| 11/04/1980 | US4232071 Method of producing magnetic thin film |
| 11/04/1980 | US4232061 Magnetic recording medium and process for producing the same |
| 11/04/1980 | US4231985 Method of connecting wire leads to miniature coil assemblies |
| 11/04/1980 | US4231816 Chromium, iron, cobalt |
| 11/04/1980 | US4231151 Method and apparatus for manufacturing a filament served bondable conductor |
| 11/04/1980 | US4231150 Method of tuning a flyback transformer for minimum ringing |
| 10/29/1980 | EP0018011A1 Method of making one or more contact connections between an enamel-insulated wire and one or more conductive parts of an electrical component |
| 10/28/1980 | CA1088386A1 Method for forming a heat-resistant coating on an oriented silicon steel sheet |
| 10/21/1980 | US4229248 Process for forming bonding pads on magnetic bubble devices |
| 10/15/1980 | EP0016960A1 Anisotropic polymeric magnet in the tubular form and process for producing the same |
| 10/14/1980 | US4227947 Method for modifying the easy direction of magnetization of an amorphous magnetic film |
| 10/07/1980 | US4226691 Forming aluminum alloy photoresist, etching, oxidation |
| 10/07/1980 | US4226681 Vapor depositing ferromagnetic metal containing cobalt on a heated substrate or subbing layer containing copper |
| 10/07/1980 | US4226623 Method for polishing a single crystal or gadolinium gallium garnet |
| 10/07/1980 | CA1087043A1 Anaerobic resin curing system |
| 10/01/1980 | EP0016404A1 Magnetic recording carrier and process for its manufacture |
| 09/17/1980 | EP0015692A1 A process for producing a magnetic recording medium |
| 09/16/1980 | US4222814 Method for forming a crystalline film for a paramagnetic sodium thallium type intermetallic compound |
| 09/16/1980 | US4222802 Process for producing electric windings |
| 09/16/1980 | CA1085951A1 Inductor casing |
| 09/16/1980 | CA1085902A1 Forming curved wafer thin magnets from rare earth- cobalt alloy powders |
| 09/09/1980 | US4221750 Method of curing phenolic resin in an electrical apparatus without degrading polyethyleneterephthalate insulation also in the electrical apparatus |
| 09/09/1980 | US4221243 Device for winding stators or the like |
| 09/02/1980 | US4220117 Apparatus for fabrication of magnetic recording media |
| 08/26/1980 | US4219610 To reduce magnetic bias field required to collapse magnetic domains |
| 08/12/1980 | US4217568 Magnetic pole pieces for use in a nuclear magnetic resonance apparatus |
| 08/12/1980 | US4217151 Cermet type magnetic material |
| 08/05/1980 | US4216455 Inductive device with precision wound coil |
| 07/29/1980 | US4214960 Method of electrolytically etching ferrite |
| 07/22/1980 | US4213792 Coating solution for applying tensioning coatings to electrical steel strip |