Patents
Sitemap › H01 - Basic electric elements › H01F - Magnets; Inductances; Transformers; Selection of materials for their magnetic properties › H01F 1 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
Patents for H01F 1 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties (23,146)
12/1991
12/10/1991US5071076 Slurrying with metal hydroxide, milling
12/05/1991WO1991019301A1 In situ use of gelatin in the preparation of uniform ferrite particles
12/03/1991US5069972 Moldable microcapsule that contains a high percentage of solid core material, and method of manufacture thereof
12/03/1991US5069731 Low-frequency transformer
12/03/1991US5069713 Permanent magnets and method of making
12/03/1991CA1292630C Microcrystalline alloys prepared from solid state reaction amorphous or disordered metal alloy powders
11/1991
11/28/1991WO1991018403A1 Ceramic material for use in high-frequency field
11/27/1991CN1056600A Proportioning and manufacture method of cd rare-earth binding permanent magnet
11/27/1991CN1056599A Proportioning and manufacture method of cd rare-earth permanent-magnet alloy
11/26/1991US5068050 High stable magnetic thin film and cores
11/26/1991US5067993 Magnetic core material made of fe-co base alloy for high frequencies
11/26/1991US5067992 Electromagnetic steel sheets with small closely spaced holes
11/26/1991US5067991 Alloy of iron, copper, vanadium, silicon and boron
11/26/1991US5067990 Iron, rare earth element boride substrate with phosphate coatings
11/26/1991US5067979 Sintered bodies and production process thereof
11/21/1991DE4015683A1 Rare earth-iron-copper-cobalt alloy for permanent magnet - ŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸ resistant to corrosion, high temp. and high opposite magnetic field
11/19/1991WO1991018404A1 Magnetic cores utilizing metallic glass ribbons and mica paper interlaminar insulation
11/19/1991US5066706 Polymerizing pyrrole in medium containing polyvinyl alcohol, ferric chloride, anionic surfactant
11/14/1991WO1991017584A1 Antenna element
11/13/1991EP0455718A1 Method and apparatus for making polycrystaline flakes of magnetic materials having strong grain orientation
11/13/1991CN1014688B Process for preparing nd-fe-b spherical non-crystalline microcrystalline powder
11/12/1991US5064550 Superparamagnetic fluids and methods of making superparamagnetic fluids
11/12/1991US5064465 Magnets
11/12/1991US5064464 Gas phase pyrolysis of transition metal carbonyl compounds diluted with diluent gases
11/12/1991CA1291868C Permanent magnet and process for producing the same
11/07/1991DE4014266A1 Permanent magnet with high max. energy prod. and corrosion resistance - comprises transition metal, rare earth metal, nitrogen and boron
11/06/1991EP0455113A2 Fe based soft magnetic alloy, magnetic material containing same, and magnetic apparatus using the magnetic materials
11/06/1991CN1056015A Prescription and manufacture of permanent-magnetic cd rare-earth alloy
11/05/1991US5063011 Doubly-coated iron particles
11/05/1991US5062991 Coating
11/05/1991US5062983 Magnetic powder for magnetic recording media
11/05/1991US5062982 Coercive force!
11/05/1991US5062981 Chelate resins
11/05/1991US5062909 Iron rich metallic glasses having saturation induction and superior soft ferromagnetic properties at high magnetization rates
11/05/1991US5062907 Hard magnetic material and magnet manufactured from such hard magnetic material
11/05/1991US5062904 Treatment of ferromagnetic metal powders and magnetic recording media using the same
11/05/1991US5062888 Method of producing precipitate of rare earth ferromagnetic alloy
11/05/1991US5062885 Rare earth metal-iron group metal target, alloy powder therefor and method of producing same
10/1991
10/31/1991WO1991016717A1 Method of manufacturing high energy rare earth alloy magnets
10/31/1991WO1991016462A1 Process for producing unidirectional magnetic steel sheet excellent in magnetic characteristics
10/29/1991US5062095 Actuator and method of manufacturing thereof
10/29/1991US5061577 Magnetic coating compositions containing fluoropolyols
10/29/1991US5061439 Manufacture of dimensionally precise pieces by sintering
10/29/1991US5060478 Magnetical working amorphous substance
10/29/1991CA1291318C Process for the preparation of isometric magnetic iron oxide pigments
10/23/1991EP0453284A2 Process for manufacturing double oriented electrical steel having high magnetic flux density
10/23/1991EP0453270A2 Rare-earth based magnetic materials, production process and use
10/22/1991US5059337 Soft magnetic materials comprising 9 to 15 atomic percent carbon atoms
10/19/1991CA2040686A1 Magnetic materials
10/19/1991CA2014975A1 Resin bound magnet and its production process
10/16/1991EP0451812A2 Electromagnetic sensor element and method for making same
10/15/1991US5057738 Low power loss ower loss, permeability
10/15/1991US5057165 Reduced cobalt content; good magnetic properties
10/15/1991US5057148 Method of decalcifying rare earth metals formed by the reduction-diffusion process
10/15/1991US5056585 High magnetic coercivity and remanence; boron
10/11/1991CA2031281A1 Permanent magnet having improved corrosion resistance and method for producing the same
10/09/1991EP0450784A1 Method of forming thin-walled and long-sized cylindrical compact for magnet
10/09/1991EP0450092A1 Organic magnetic composite
10/09/1991CN1055255A Rinsing method and rinser for reduction-diffusion process in producing rare-earth iron-based permanent-magnetic material
10/09/1991CN1055131A Prodn process of hard-magnetic ferrite material by using open hearth dust as raw material
10/08/1991US5055214 Magnetic material for microwave and millimeter wave frequencies
10/08/1991US5055146 Permanent magnet alloy
10/08/1991US5055142 Process for preparing permanent magnets by division of crystals
10/08/1991US5055129 Rare earth-iron-boron sintered magnets
10/08/1991US5055128 Sintered fe-co type magnetic materials
10/07/1991CA2039899A1 Process for producing magnetic metal powder and coating for magnetic recording medium
10/03/1991WO1991015020A1 Magnetic core
10/02/1991EP0449665A1 A process for producing a rare earth-iron-boron magnet
10/02/1991EP0449289A2 Method of manufacturing high permeability Fe-Ni system alloy
10/02/1991EP0448875A1 Method of making discs of material
10/02/1991DE4109550A1 Cold rolled iron-nickel alloy sheet - used esp. to mfr. shadow masks for high definition television tubes
10/02/1991DE4009666A1 Permanent magnetic materials - contain at least one rare earth metal, iron, and cobalt
10/01/1991US5053156 Oxidation of magnetite or mill scale powders, mixing iron oxides and stronium or barium oxides or carbonates, calcining in inclined rotary kiln
10/01/1991US5053075 Reductionof iron oxides with metal hydride-boron carrier complex (in organic solvents)
10/01/1991CA1289873C Coated chromium dioxide particles
09/1991
09/26/1991DE4009010A1 Antitheft magnetic security strip
09/25/1991EP0448482A1 Preparation process of an oriented and textured magnetic body
09/25/1991EP0448114A1 Thin-film magnetic material and process of production thereof
09/25/1991EP0447793A2 Security label capable of deactivation
09/25/1991EP0447567A1 Corrosion-resistant tm-b-re type magnet and method of production thereof
09/24/1991US5051201 Preparation of finely divided hexagonal ferrite powder
09/24/1991US5051200 Flexible high energy magnetic blend compositions based on rare earth magnetic particles in highly saturated nitrile rubber
09/24/1991US5051138 Quenching and solidification of melts of steel sheets, cold rolling and annealing
09/24/1991CA2038702A1 Method of forming thin-walled and long-sized cylindrical compact for magnet
09/23/1991CA2038639A1 Method for preparing an oriented and textured magnetic material
09/19/1991WO1991014273A1 PROCESS FOR MANUFACTURING A SINTERED SEFe PERMANENT MAGNET
09/19/1991WO1991014272A1 Process for producing se permanent magnets
09/19/1991WO1991014271A1 Perromagnetic materials
09/19/1991WO1991014260A1 Magnetic composition and its applications
09/18/1991EP0446910A1 Theft detection apparatus and flattened wire target and method of making same
09/17/1991US5049454 Monocrystalline MnZn-ferroferrite material having a high content of Zn, and a magnetic head manufactured from said material
09/17/1991US5049335 Cooling melt to solidify; compressive pressurization
09/17/1991US5049307 Process for the production of a ferromagnetic composition, ferromagnetic liquid crystal obtained by this process and apparatus using said liquid crystal
09/17/1991US5049208 Permanent magnets
09/17/1991US5049205 Decarburization, nitriding
09/17/1991US5049203 With boron and iron
09/14/1991CA2037958A1 Theft detection apparatus and flattened wire target and method of making same
09/13/1991CA2027623A1 High temperature-generating method and application thereof
09/11/1991EP0446188A1 Stainless steel
09/11/1991EP0445965A1 Low power loss Mn-Zn ferrites
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