Patents
Patents for H01F 41 - Apparatus or processes specially adapted for manufacturing or assembling the devices covered by this subclass (27,155)
10/1999
10/19/1999US5969456 Electromagnetic equipment
10/19/1999CA1340795C Magnetic ribbon and magnetic core
10/15/1999CA2234760A1 Deactivatable magnetic marker and method for production thereof
10/14/1999DE19811578A1 Multiple layer circuit board especially for chip card
10/13/1999EP0949640A1 Method for producing electronic components comprising a winding
10/13/1999CN1231756A Corrosion-resistant permanent magnet and method for manufacturing the same
10/12/1999US5966065 Ferric oxide core
10/07/1999WO1999050859A1 Amorphous metal transformer having a generally rectangular coil
10/07/1999DE19913358A1 Single crystal growth process especially for a cerium substituted yttrium-iron garnet single crystal for optical applications
10/07/1999CA2326147A1 Amorphous metal transformer having a generally rectangular coil
10/06/1999CN1231094A Pulse transformer for U-shape interfaces operating according to echo compensation principle
10/06/1999CN1230757A Method for producing casting resin transformer
10/06/1999CN1230744A Exchange coupling film, magnetoresistance effect device, magnetoresistance effective head and method for producing exchange coupling film
10/05/1999US5963416 Electronic device with outer electrodes and a circuit module having the electronic device
10/05/1999US5963118 Electromagnetic coil and manufacturing apparatus for the same
09/1999
09/30/1999WO1999049482A1 Coil winder and coil winding method
09/30/1999WO1999049478A2 Method of impregnation and polymerisation for a high-current coil
09/30/1999DE19905747A1 Production of coil with rectangular wire
09/30/1999DE19811083C1 Inductive component in chip multilayer technology
09/23/1999WO1999048069A1 Transverse field annealing process to form e.a.s. marker having a step change in magnetic flux
09/23/1999WO1999039336A3 Methods for creating a magnetically permeable film
09/23/1999DE19844399C1 Electrical heating system for component with winding
09/23/1999CA2323517A1 Transverse field annealing process to form e.a.s. marker having a step change in magnetic flux
09/21/1999US5955685 Sputtering target for forming magnetic thin film and fabrication method thereof
09/21/1999US5954909 Direct adhesive process
09/16/1999DE19901376A1 Multi-function audio system can perform a number of functions yet forms unit that allows hands-free telephone operation
09/15/1999EP0942441A2 Coil element and method for manufacturing thereof
09/15/1999EP0941544A1 Improvements in and relating to coils
09/15/1999CN2338863Y Vertical circular section iron core winding machine
09/15/1999CN1045136C Super-fine magnetic powder and its prepn. method
09/15/1999CN1045135C Gama Fe2O3 magnetic powder prepn. method
09/14/1999US5952909 Multi-layered printed-coil substrate, printed-coil substrates and printed-coil components
09/14/1999US5952893 Integrated circuit inductors for use with electronic oscillators
09/14/1999US5951881 Fabrication of small-scale cylindrical articles
09/14/1999US5950956 Ignition coil bank-winding method
09/14/1999CA2086138C Laser-formed electrical component and method for making same
09/10/1999CA2265125A1 Coil element and method for manufacturing thereof
09/09/1999DE19907973A1 Winding arrangement, e.g. for winding wires onto a magnetic core
09/09/1999DE19805628A1 Manufacture of ignition coils
09/08/1999EP0940826A2 Inductor for use with electronic oscillators
09/08/1999EP0939963A1 Method of impregnating components
09/08/1999EP0939962A1 Method of impregnating components
09/08/1999EP0853649B1 Treatment of transition metal containing pigments with chelating or silylating compounds
09/08/1999EP0842519B1 Winding device for forming an electrical coil on a magnetic air gap circuit
09/08/1999EP0641461B1 Encapsulated magnetic particles, pigments and carbon black, compositions and methods related thereto
09/08/1999CN2337658Y Permanent-magnetic ferrite burn-in material parison
09/08/1999CN1228193A Method for making transponder coil and transponder produced by said method
09/07/1999US5949321 Planar transformer
09/07/1999US5949319 Bar coil for ignition systems
09/07/1999US5948200 Method of manufacturing laminated ceramic electronic parts
09/02/1999WO1999043862A1 Method of applying a corrosion-resistant coating
09/01/1999EP0939426A1 Magnetic core and deflection yoke having the same
09/01/1999CN1227392A Rare-earth-Fe-B permanent magnetic material and its preparation technology
09/01/1999CN1044943C Apparatus for making a transformer core comprising strips of amorphous steel wrapped around the core window
09/01/1999CN1044942C Apparatus for forming magnetized zones on magnetizable body
08/1999
08/31/1999US5945902 Core and coil structure and method of making the same
08/31/1999US5945007 Method for etching gap-vias in a magnetic thin film head and product
08/25/1999EP0938105A1 Powder for permanent magnet, method for its production and anisotropic permanent magnet made using said powder
08/25/1999EP0937304A1 A coil manufacturing and attachment method and apparatus for carrying out the method
08/25/1999CN2335239Y Novel transformer coil frame structure
08/24/1999US5943580 Method of forming a capacitor or an inductor on a substrate
08/24/1999US5942963 Multiwound coil embedded in ceramic
08/24/1999US5942961 Magnetized material having enhanced magnetic pull strength and a process and apparatus for the multipolar magnetization of the material
08/24/1999US5942051 Improved magnetic properties; steel comprising carbon, silicon, manganese, aluminum, rare earth metal, titanium, zirconium, iron
08/18/1999EP0936639A2 Process for forming device comprising metallized magnetic substrates
08/18/1999EP0936638A2 Process for producing a ferromagnetic compact,ferromagnetic compact and its utilisation
08/18/1999CN1226335A Monolithic thick film inductor and method for making same
08/18/1999CN1226100A Method for producing conductor bar designed preferably as roebel conductor and device thereof
08/18/1999CN1225857A Production apparatus for rare earth magnet powders
08/17/1999US5939966 Inductor, transformer, and manufacturing method thereof
08/17/1999US5938143 Ignition coil bank-winding method
08/12/1999WO1999040594A1 Amorphous alloy with increased operating induction
08/12/1999WO1999040592A1 Magnetic film and a method for the production thereof
08/12/1999DE19822434C1 Electrical heating system for component with winding
08/12/1999DE19804757A1 Method of forming a flat mounting surface on at least one side of electrical component, especially SMD component
08/12/1999CA2320084A1 Amorphous alloy with increased operating induction
08/10/1999US5936504 Chip-type coil device
08/10/1999US5936298 Method for realizing magnetic circuits in an integrated circuit
08/10/1999US5935722 Assembling in a cavity alternating layers of uncoated metal powder and an inorganic bonding media of ceramic, glass, or glass-ceramic powders; applying heat to sinter each layer; manufacture of high perfomance magnets when alloy is magnetic
08/10/1999US5935403 Magnetic thin film and magnetic thin film manufacturing method
08/10/1999US5935347 FE-base soft magnetic alloy and laminated magnetic core by using the same
08/05/1999WO1999039336A2 Methods for creating a magnetically permeable film
08/05/1999WO1999038623A1 A method of forming a coating onto a non-random monolayer of particles, and products formed thereby
08/05/1999WO1999022386A3 Method for producing a coil from a high temperature superconductive material, and a high temperature superconductive coil with low alternating current loss
08/05/1999CA2319539A1 A method of forming a coating onto a non-random monolayer of particles, and products formed thereby
08/04/1999CN2332049Y Device for increasing raial magnetic performance of isotropic ferrite bead by dry method
08/04/1999CN1224900A Multiple-point driving and multiple-shaft synchronizing wire winding method and equipment
08/04/1999CN1224899A Built-up magnet, its producing method and Fe-Al-Si soft magnetic alloy powder used therefor
08/03/1999US5932819 Deflection ring of sintered MgZn-ferrite material, cathode ray tube comprising such a ring and moulding made from this material
08/03/1999US5932396 1,2-naphthoquinonediazidosulfonyl-substituted novolak resist
08/03/1999US5932082 Adding ethylenediamine to hydrochloric acid bath to increase mass ratio of nickel to iron in the plated thin film permalloy at low applied current density; computer hard disk drive heads
08/03/1999US5932032 Die casting low melting soft magnetic alloy to form nonporous magnet without die tool wear, then extracting melting point-lowering element from alloy by heat treatment in reactive hydrogen atmosphere
08/03/1999US5931405 Method for achieving windings in radial layers
08/03/1999US5931404 Electric coil with a low voltage differential between adjacent windings
08/03/1999CA2071927C Coil assemblies
07/1999
07/29/1999WO1999038174A1 Bonded magnet, magnet roll and ferrite powder to be used for their preparation, and method for producing the same
07/28/1999EP0932170A1 Cost-reduced transformer manufacture
07/28/1999EP0931322A1 Soft magnetic, deformable composite material and process for producing the same
07/28/1999CN2331068Y Power transformer high-tension coil automatic winding machine
07/28/1999CN2331067Y Magnetic steel die for oriented formation of special magnetic field