| Patents for H01F 41 - Apparatus or processes specially adapted for manufacturing or assembling the devices covered by this subclass (27,155) |
|---|
| 07/03/1991 | EP0435838A2 Sputtering apparatus |
| 07/02/1991 | US5029291 Electromagnetic sensor element and methods and apparatus for making and using same |
| 06/27/1991 | WO1991009234A1 Construction of armature of electromagnetic brake |
| 06/26/1991 | EP0434113A2 Alloying low-level additives into hot-worked Nd-Fe-B magnets |
| 06/26/1991 | CN1052568A Process for producing permanent magmets and products thereof |
| 06/25/1991 | US5027412 Voice coil with rectangular coil wire and foil leads |
| 06/25/1991 | US5026518 Compacting; sintering; sealing agent; outer coating, corrosion resisant, magnetic stability |
| 06/25/1991 | US5026470 Sputtering apparatus |
| 06/25/1991 | US5025999 Coil winding form apparatus |
| 06/25/1991 | US5025550 Automated method for the manufacture of small implantable transponder devices |
| 06/25/1991 | CA1285124C Method of forming permanent magnets within a motor yoke |
| 06/22/1991 | WO1991010243A1 Coil assemblies |
| 06/20/1991 | CA2023924A1 Alloying low-level additives into hot-worked nd-fe-b magnets |
| 06/19/1991 | EP0432239A1 Method for producing electronic components comprising fine wire winding. |
| 06/18/1991 | US5025241 Transformer of ferrite closed magnetic circuit type |
| 06/18/1991 | US5025240 Method and apparatus for forming magnetized zones on a magnetizable body |
| 06/18/1991 | US5024854 Partial oxidation of iron, cobalt, nickel, then vapor deposition of mixed metal and oxide particles at room temperature |
| 06/13/1991 | WO1991008578A1 Process for sputtering multilayers for magneto-optical recording |
| 06/13/1991 | WO1991008577A1 Composite magnetic sheet material and fabrication method |
| 06/12/1991 | EP0432038A1 Process for the preparation of a magnetooptical memory |
| 06/12/1991 | CN1052213A Method and apparatus for forming magnetized zones on magnetizable body |
| 06/12/1991 | CN1052212A Heat treatment method of permanent-magnet material |
| 06/11/1991 | US5022141 Method for manufacturing multiturn thin film coil |
| 06/06/1991 | DE4037407A1 Clip-on transformer giving improved measuring repeatability - uses self-aligning interlocking joints in toroidal core |
| 06/05/1991 | EP0430198A2 Rare earth-based permanent magnet having corrosion resistant surface film and method for the preparation thereof |
| 05/30/1991 | WO1991007520A1 Method and apparatus for thin film formation, device, electro-magnetic apparatus, data recording/reproduction apparatus, signal processor, and method of producing molten crystal |
| 05/29/1991 | EP0428933A2 Materials coated with plate like pigmets |
| 05/29/1991 | EP0428728A1 Electromagnet for solenoid valve and production method of the same |
| 05/29/1991 | CN2078037U Rebound clip of coil |
| 05/29/1991 | CN1051819A Planar coil construction |
| 05/29/1991 | CN1051818A Anticorrosive rare-earth-transition metal series magnet and method thereof |
| 05/28/1991 | US5018267 Method of forming a laminate |
| 05/22/1991 | EP0428262A2 Manufacture of electromagnetic articles, e.g. responder tags |
| 05/22/1991 | EP0428142A2 Planar coil construction |
| 05/22/1991 | CN1051636A Manufacturing method of removable non-adhesive coiled core |
| 05/21/1991 | US5016832 Method and apparatus for winding an amorphous magnetic toroidal transformer core |
| 05/15/1991 | EP0427171A2 Magnetic thin film structures |
| 05/08/1991 | EP0426614A2 Process and machine for forming a coil of material |
| 05/08/1991 | EP0425962A1 Device for the sequential winding of at least two windings on a same coil body, particularly for coils of electric components and the like |
| 05/07/1991 | US5013411 Surface coated with electroplated nickel layer |
| 05/02/1991 | EP0424770A2 Programmable self-adjusting device for tensioning wires during winding |
| 05/02/1991 | DE3936558A1 Coil winding machine wire control mechanism - has controlled forward brake and main brake according to wire tension to avoid breaking strains |
| 04/30/1991 | US5011581 Electrodeposition at cathode |
| 04/30/1991 | US5011365 Apparatus for feeding bundles of laminations |
| 04/17/1991 | EP0422943A1 Skeining device |
| 04/17/1991 | EP0422760A1 Amorphous alloy and process for preparation thereof |
| 04/17/1991 | EP0422679A2 Method of manufacturing insulated coil |
| 04/16/1991 | US5008643 Ignition coil having a divided high tension winding, in particular for internal combustion engines |
| 04/13/1991 | WO1991006107A1 Corrosion-resistant, rare earth-transition metal magnet and method of production thereof |
| 04/11/1991 | DE3933425A1 Prodn. of tubular coil holder - by mixing epoxide] resin and iron particles, centrifuging mix inside tube and curing to form uniform void free product |
| 04/09/1991 | US5006397 Printed circuit board |
| 04/09/1991 | US5006367 Demagnetization, then plating of ferromagnetic substrate gives smooth surface |
| 04/09/1991 | US5006164 Starting material for injection molding of metal powder |
| 04/04/1991 | DE3932313A1 Forming and cutting device for coil wires - has two cooperating cutters displaced parallel to longitudinal axis of cylindrical wire feed |
| 04/02/1991 | US5004580 Opening in cylinder mold; supplying magnetic powder; applying alternating current |
| 04/02/1991 | US5004499 Rare earth-iron-boron compositions for polymer-bonded magnets |
| 03/28/1991 | DE3930795A1 Dipping coils etc. in liq. resins - machine rotates coils and brings up to them series of baths contg. resin which is kept at constant level and then lowers baths again |
| 03/27/1991 | EP0418804A1 Soft magnetic thin film |
| 03/27/1991 | CN1050282A Magnetic material containing rare earth element, iron, nitrogen, hydrogen and oxygen |
| 03/27/1991 | CN1012235B Process for manufacturing permanent magnet |
| 03/21/1991 | WO1991003823A1 Permanent magnet |
| 03/20/1991 | EP0417951A2 Fe-Si-Al alloy magnetic thin film and method of manufacturing the same |
| 03/20/1991 | CN1050110A Process of high-voltage winding for the electronic transformer of neon lamp |
| 03/20/1991 | CN1050109A Production of amorphous constant-permeability core |
| 03/20/1991 | CN1050108A Production of amorphous inductor core |
| 03/20/1991 | CN1012116B Winding device and winding process |
| 03/19/1991 | US5001018 Fe-Co base magnetic film and process for producing the same |
| 03/19/1991 | US5000995 Vapor deposition of flux on a support, magnetic tapes or disks |
| 03/14/1991 | DE3930491A1 Stacking mechanism for transformer core laminations - has transverse stops, and programmable stop effective in lamination longitudinal direction |
| 03/14/1991 | DE3928389A1 Permanentmagnet Permanent magnet |
| 03/12/1991 | US4998339 Process for fabrication of an iron member with a winding for generation of electromagnetic fields |
| 03/06/1991 | EP0415841A1 Method and apparatus for forming magnetized areas on a magnetizable object |
| 03/06/1991 | EP0415576A1 Method of making a permanent magnet sensor element with a soft magnetic layer |
| 03/06/1991 | EP0414974A1 Thin soft magnetic alloy strip |
| 03/06/1991 | EP0414969A1 Method of producing a core for magnetic head |
| 02/27/1991 | EP0414376A2 Method for the preparation of a rare earth-iron-boron permanent magnet |
| 02/26/1991 | US4996023 Method of manufacturing a permanent magnet |
| 02/20/1991 | EP0413572A1 Demountable coil form for epoxy-impregnated coils |
| 02/20/1991 | EP0413423A2 Thin film metal alloy magnetic recording disk |
| 02/20/1991 | CN1049424A Method of double-auxiliary coupling compensating current transformer |
| 02/19/1991 | US4994633 Bend-tolerant superconductor cable |
| 02/19/1991 | US4994109 Method for producing permanent magnet alloy particles for use in producing bonded permanent magnets |
| 02/19/1991 | US4993141 Method of making transformers and cores for transformers |
| 02/19/1991 | US4993140 Method of making transformers and cores for transformers |
| 02/17/1991 | CA2017477A1 Demountable coil form for epoxy-impregnated coils |
| 02/13/1991 | EP0412743A1 Process for producing injection-moulded sinterings |
| 02/13/1991 | EP0412296A1 Method for winding coils, particularly for position sensors |
| 02/13/1991 | EP0412137A1 Magnetic materials for security applications. |
| 02/12/1991 | US4992234 Method for the preparation of rare earth-base permanent magnet |
| 02/07/1991 | WO1991001562A1 Anisotropic plastic-bonded magnet |
| 02/05/1991 | US4990492 Stress controlling superconductor wire |
| 02/05/1991 | US4990361 Method for producing magnetic recording medium |
| 02/05/1991 | US4990306 Molding an alloy of neodyum, iron and boron with other metals compacting, and sintering |
| 02/05/1991 | US4990276 Contains magnetic particle and dispersing agents in dialkyl ester of phthalic acid media |
| 02/05/1991 | US4990225 Electrodeposition using sulfate or halide salt of iron, cobalt, nickel, chromium, or copper |
| 01/30/1991 | EP0163695B1 Heating amorphous metal to facilitate cutting |
| 01/29/1991 | US4988968 Double insulated transformer and bobbin case thereof |
| 01/29/1991 | US4988755 Passivated rare earth magnet or magnetic material compositions |
| 01/29/1991 | US4988047 Winding apparatus |
| 01/23/1991 | EP0409691A2 Oxide garnet single crystal |