| 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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| 11/05/1991 | US5062885 Rare earth metal-iron group metal target, alloy powder therefor and method of producing same |
| 10/31/1991 | WO1991016718A1 Method for assembling a coil on a printed circuit |
| 10/31/1991 | WO1991016717A1 Method of manufacturing high energy rare earth alloy magnets |
| 10/30/1991 | CN2087811U Miniature core-type or shell-type transformer iron core sheet-inserting machine |
| 10/29/1991 | US5062095 Actuator and method of manufacturing thereof |
| 10/29/1991 | US5061551 UV-cured ink of a cycloaliphatic epoxy resin containing silver-coated magnetite having been positioned by magnetic waves to increase conductivity |
| 10/29/1991 | US5061093 Non-impact printing apparatus |
| 10/24/1991 | DE4012806A1 Insulated core coil with glued turns - having intermittent, sequential adhesion zones in longitudinal direction |
| 10/23/1991 | EP0452581A1 Dies for extrusion moulding |
| 10/23/1991 | EP0452580A1 A resin bound magnet and its production process |
| 10/22/1991 | US5059337 Soft magnetic materials comprising 9 to 15 atomic percent carbon atoms |
| 10/22/1991 | CA1291264C Multi-phase electronic temperature controller |
| 10/19/1991 | CA2014975A1 Resin bound magnet and its production process |
| 10/19/1991 | CA2014974A1 Dies for extrusion moulding |
| 10/16/1991 | EP0451812A2 Electromagnetic sensor element and method for making same |
| 10/16/1991 | EP0451172A1 Control device for controlling over time the filling pressure in a compression moulding die. |
| 10/16/1991 | CN2086932U Double-pipe current mutual inductor |
| 10/15/1991 | US5056214 Method of making a molded transformer enclosure |
| 10/09/1991 | EP0450784A1 Method of forming thin-walled and long-sized cylindrical compact for magnet |
| 10/09/1991 | CN1055255A Rinsing method and rinser for reduction-diffusion process in producing rare-earth iron-based permanent-magnetic material |
| 10/09/1991 | CN1014281B Turn-loss method for improving distribution transformer |
| 10/08/1991 | US5055816 Method for fabricating an electronic device |
| 10/08/1991 | US5055815 Stationary induction electric apparatus |
| 10/08/1991 | US5055142 Process for preparing permanent magnets by division of crystals |
| 10/02/1991 | EP0449665A1 A process for producing a rare earth-iron-boron magnet |
| 10/02/1991 | CN1014192B Method for gaining heat-resisting electric insulation coating layer |
| 10/01/1991 | CA1289736C Apparatus and method for fabricating a low voltage winding for a toroidal transformer |
| 09/25/1991 | EP0448482A1 Preparation process of an oriented and textured magnetic body |
| 09/25/1991 | EP0448114A1 Thin-film magnetic material and process of production thereof |
| 09/25/1991 | EP0447567A1 Corrosion-resistant tm-b-re type magnet and method of production thereof |
| 09/25/1991 | CN2085555U Flat edge trimmer for metal foil |
| 09/24/1991 | US5050840 Electromagnet for solenoid valves and method of manufacturing same |
| 09/24/1991 | US5050294 Method for making a transformer core comprising amorphous steel strips surrounding the core window |
| 09/24/1991 | US5050293 Method of making a laminated conductor for high current coils |
| 09/24/1991 | US5050292 Automated method for the manufacture of transponder devices by winding around a bobbin |
| 09/24/1991 | CA2038702A1 Method of forming thin-walled and long-sized cylindrical compact for magnet |
| 09/23/1991 | CA2038639A1 Method for preparing an oriented and textured magnetic material |
| 09/19/1991 | WO1991014274A1 High efficiency encapsulated power transformer |
| 09/19/1991 | WO1991014272A1 Process for producing se permanent magnets |
| 09/19/1991 | WO1991014260A1 Magnetic composition and its applications |
| 09/18/1991 | EP0446714A1 Method of manufacturing laminated core |
| 09/17/1991 | US5049053 Metal mold for molding anisotropic permanent magnets |
| 09/15/1991 | WO1991014275A1 Process for manufacturing a polymeric encapsulated transformer |
| 09/11/1991 | CN2084647U 箔绕机 Foil winding machine |
| 09/11/1991 | CN1054503A Low-magnetic-moment magneto-optical material without rare-earth and preparing process thereof |
| 09/11/1991 | CN1054450A Improved process for sputtering multilayers for magneto-optical recording |
| 09/11/1991 | CN1013906B Method of manufacturing superconducting pattern by light irradiation |
| 09/10/1991 | US5047745 Laminations |
| 09/10/1991 | US5047743 Integrated magnetic element |
| 09/10/1991 | US5047296 Composite magnetic material and its production process |
| 09/10/1991 | US5047260 Curing by UV radiation an interior coating of silver-coated magnetite particles suspended in a polymer |
| 09/10/1991 | US5047205 Method and assembly for producing extruded permanent magnet articles |
| 09/10/1991 | US5046235 Method of and apparatus for assembling a transformer core |
| 09/10/1991 | CA1288796C Permanent magnet assembly and method of making same |
| 09/05/1991 | WO1991013450A1 Modified i-plate core structures and methods of yoking amorphous metal stacked core transformers |
| 09/04/1991 | EP0444702A2 Superconducting coil and process for manufacturing the same, composite superconductor and process for manufacturing the same and superconducting apparatus |
| 08/29/1991 | DE4104087A1 Electronic wire tension regulator for coil winding device - has successive tensioning braking and dynamic regulation stages |
| 08/28/1991 | WO1991012960A1 Laminated strips of amorphous metal |
| 08/28/1991 | EP0443812A1 Powder coating composition |
| 08/28/1991 | CN1054144A Method for reforming high loss distribution transformer |
| 08/28/1991 | CA2053300A1 Laminated strips of amorphous metal |
| 08/27/1991 | US5042736 Apparatus for production of thin strip core, method for the production of a thin strip core and thin strip core |
| 08/27/1991 | US5042139 Method of making an excitation coil for an electrodeless high intensity discharge lamp |
| 08/24/1991 | CA2036689A1 Powder coating composition |
| 08/22/1991 | WO1991012619A1 Magnetic coil composed of stacked metal sheets, electrical machine with magnetic coils composed of stacked metal sheets, and process for manufacturing magnetic coils |
| 08/22/1991 | DE4005359A1 Electrical coil winding device - has reciprocating wire guide with wire calibration device at wire entry point |
| 08/22/1991 | DE4004540A1 Ferromagnetic multilayer film with uniaxial magnetic anisotropy - has nickel-iron alloy layer and a second ferromagnetic layer contg. carbon or nitrogen on substrate |
| 08/21/1991 | EP0442124A1 Method and arrangement for the application of a measuring coil to a prestressed tendon in a concrete construction |
| 08/21/1991 | EP0442022A2 Method of forming ferrite coatings |
| 08/20/1991 | US5041419 High energy product radially oriented toroidal magnet and method of making |
| 08/20/1991 | US5041331 Ribbon for non-impact printing of magnetic ink |
| 08/20/1991 | US5041200 Heat treating a thin film formed by the simultaneous deposition of a rare earth component and a pnictide on a substrate |
| 08/20/1991 | US5040286 Method for making permanent magnet rotor |
| 08/14/1991 | EP0441581A2 Method for producing magnetic structure |
| 08/14/1991 | DE4004019A1 Magnetspule aus gestapelten blechen, elektrische maschine mit magnetspulen aus gestapelten blechen, verfahren zur herstellung von magnetspulen Magnetic coil of stacked metal sheets, electrical machine with solenoid stacked metal sheets, process to manufacture of solenoid |
| 08/14/1991 | CN1013532B 绕线机 Winder |
| 08/13/1991 | US5039903 Excitation coil for an electrodeless high intensity discharge lamp |
| 08/13/1991 | US5039292 Device for manufacturing magnetically anisotropic magnets |
| 08/06/1991 | US5037706 Laminated strips of amorphous metal |
| 08/06/1991 | US5037669 Methods of manufacturing electromagnetic articles |
| 08/06/1991 | US5036580 Process for manufacturing a polymeric encapsulated transformer |
| 08/02/1991 | WO1991011816A1 Magnetic dispersion |
| 08/02/1991 | CA2046885A1 Magnetic dispersion |
| 07/31/1991 | EP0439410A2 Laminate for magnetic core |
| 07/31/1991 | EP0439389A1 Method of making electromagnetic coils |
| 07/31/1991 | EP0438687A1 Iron/iron nitride multilayer films |
| 07/31/1991 | CN2082013U Combined die for winding transformer coil |
| 07/30/1991 | US5036128 UV curable ink containing thermosetting resin binder, ketone-amine curing agent, electroconductive particles |
| 07/30/1991 | CA1286877C Shed winding machine |
| 07/24/1991 | EP0438027A1 Electrical connexion fabricating method,apparatus or element produced with this method and device for the execution of this method |
| 07/17/1991 | EP0437299A2 Conical coiling of wire on a spool with a cylindrical core and two straight flanges mounted perpendicularly to the cylindrical core |
| 07/17/1991 | EP0269667B1 Method for the preparation of permanent magnets by division of crystals |
| 07/16/1991 | US5032945 Magnetic thin film structures fabricated with edge closure layers |
| 07/16/1991 | US5032815 Lamination type inductor |
| 07/16/1991 | CA1286276C Electrical coil body |
| 07/11/1991 | WO1991010244A1 Toric-type transformer |
| 07/10/1991 | EP0436434A1 Toroidal transformer |
| 07/10/1991 | EP0436385A2 High-frequency inductor and manufacturing method thereof |
| 07/10/1991 | EP0436274A2 Thin film magnetic core memory and method of making same |
| 07/10/1991 | CN2080725U 自动绕线机 Automatic winding machine |