| Patents for H01F 1 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties (23,146) |
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| 10/23/1990 | US4964907 Sintered bodies and production process thereof |
| 10/23/1990 | CA1275377C High energy ball milling method for making rare earth- transition metal-boron permanent magnets |
| 10/18/1990 | WO1990011855A1 Manufacture of dimensionally precise pieces by sintering |
| 10/17/1990 | EP0392799A1 Method and apparatus for producing anisotropic rare earth magnet |
| 10/17/1990 | EP0392204A2 Use of a microcrystalline iron-based alloy as a magnetic material for a fault current-protective switch |
| 10/17/1990 | EP0392202A2 Use of a fine crystalline iron-based alloy as a magnet core in an interface transformer |
| 10/17/1990 | EP0392077A2 Magnetically anisotropic hot-worked magnets and composition and method for their production |
| 10/17/1990 | EP0391914A1 A method of preparing a bulk amorphous metal article |
| 10/17/1990 | CN1046243A Salt-fog resistant, high magnetic-induction ferritic soft magnetic alloy |
| 10/16/1990 | US4963429 Polybutene and polyethylene with zinc, iron, aluminum, cobalt, nickel, silver and copper salts dispersed therein; dielectrics for capacitors |
| 10/16/1990 | US4963320 Compression on surface of compacted material as it is extruded |
| 10/16/1990 | US4963281 Low loss oxide magnetic material |
| 10/16/1990 | US4963199 Drilling of steel sheet |
| 10/12/1990 | WO1990013134A1 Platinum-cobalt alloy permanent magnets of enhanced coercivity |
| 10/12/1990 | CA2033067A1 Platinum-cobalt alloy permanent magnets of enhanced coercivity |
| 10/10/1990 | EP0391361A2 Process and apparatus for continuous production of cobalt-modified magnetic iron oxide |
| 10/03/1990 | EP0390634A1 Hydrophobic, cross-linked, polymeric, magnetisable composite microspheres, method for their preparation and their biological uses |
| 10/03/1990 | EP0390140A1 Process for producing grain-oriented electrical steel sheet having excellent magnetic characteristic |
| 10/03/1990 | EP0389626A1 SINTERED RARE EARTH ELEMENT-B-Fe-MAGNET AND PROCESS FOR ITS PRODUCTION |
| 10/03/1990 | EP0389511A1 SINTERED Fe-Nd-B MAGNET |
| 10/03/1990 | CN1045888A Rare-earth-iron permanent-magnet material of th-mn oral structure |
| 10/02/1990 | US4960652 Grain-oriented electrical steel sheet having a low watt loss |
| 10/02/1990 | US4960582 Roasting the spinel structure nickel ferrite-modified with zinc compound deposites in presence of barium chloride |
| 10/02/1990 | US4960474 Iron, boron and rare earth components; anisotropic; flat disks |
| 10/02/1990 | US4960469 Method of manufacturing magnetically anisotropic magnet materials and device for same |
| 10/02/1990 | US4960462 Acicular, ferromagnetic metal particles essentially consisting of iron, and their preparation |
| 09/30/1990 | CA2013459A1 Magnetizable composite microspheres of hydrophobic crosslinked polymer, preparation process of same and application in biology |
| 09/26/1990 | EP0389096A1 Method of domain refinement of oriented silicon steel |
| 09/26/1990 | CN1045659A Permanent magnetic alloy containing rare earth element |
| 09/26/1990 | CN1045554A Production method of noncrystalline alloy thin layers |
| 09/25/1990 | US4959273 Corrosion-resistant permanent magnet and method for preparing the same |
| 09/23/1990 | CA2011106A1 Method of domain refinement of oriented silicon steel by using flux-printing |
| 09/20/1990 | DE3908623A1 Process for the steric stabilisation of iron ferrite particles |
| 09/19/1990 | EP0387629A2 Magnetic pigments containing cobalt, process for their production and their use |
| 09/19/1990 | EP0387573A1 Fine-grained magnetic hexaferrites with a low temperature dependence of the coercivity, and their use |
| 09/19/1990 | EP0387571A1 Fine-grained magnetic hexaferrites with a low temperature-dependent coercitive force, and their use |
| 09/18/1990 | US4958134 Noise suppression device comprising a toroid winding |
| 09/18/1990 | US4957668 Mixing particles with thermobonding agent |
| 09/18/1990 | US4957644 Magnetically controllable couplings containing ferrofluids |
| 09/18/1990 | US4957549 Rare earth metal-iron group metal target, alloy powder therefor and method of producing same |
| 09/12/1990 | EP0386747A2 Method of producing ferromagnetic rare earth-transition metal-boron powder by precipitation |
| 09/12/1990 | EP0386534A1 Fine-grained magnetic hexaferrites with a negative temperature-dependent coercivity, and their use |
| 09/12/1990 | EP0386472A2 Process for producing rare earth-iron-boron-type permanent magnets |
| 09/12/1990 | EP0386286A1 Rare earth iron-based permanent magnet |
| 09/11/1990 | US4956743 Ground fault interrupters for glassy metal alloys |
| 09/11/1990 | US4956114 Borosilicate glass having improved mechanical strength and electromagnetic properties |
| 09/11/1990 | US4956113 Process for preparing a magnetic fluid |
| 09/11/1990 | US4956011 Water atomizing powders, magnetism, cores |
| 09/06/1990 | DE3907090A1 Process for the powder metallurgical production of a soft magnetic body |
| 09/05/1990 | EP0385453A1 Microwave ceramic magnetic material manufacturing process |
| 09/04/1990 | US4954607 Ferromagnetic organic substance having triaryl methane structure and process for manufacturing the same |
| 09/04/1990 | US4954186 Compacted and sintered with rare earth oxide; computers, audio devices, motors, generators |
| 09/04/1990 | CA1273471A1 Process for producing acicular particles containing an iron carbide |
| 08/29/1990 | EP0384491A2 Core of a noise filter comprised of an amorphous alloy |
| 08/29/1990 | CN1009375B Productive method for particulate si-p-fe alloy |
| 08/28/1990 | US4952463 Precipitation of a crystalline ferritic film to coat the surface of a ceramic |
| 08/28/1990 | US4952331 Composite magnetic compacts and their forming methods |
| 08/28/1990 | US4952253 Grain-oriented silicon steel sheet having a low iron loss free from deterioration due to stress-relief annealing and a method of producing the same |
| 08/28/1990 | US4952252 Rare earth-iron-boron-permanent magnets |
| 08/28/1990 | US4952251 Alloy powder mixed with graphite and glass, hot worked |
| 08/28/1990 | US4952239 Rare earth metal, iron, boron and additives as alloy component |
| 08/28/1990 | CA1273232A1 Oxygen containing permanent magnet alloy |
| 08/28/1990 | CA1273231A1 Permanent magnet alloy |
| 08/23/1990 | CA2010587A1 Method of making non-oriented magnetic steel strips |
| 08/22/1990 | EP0383035A2 Iron-silicon alloy powder magnetic cores and method of manufacturing the same |
| 08/21/1990 | US4950550 Security systems; soft magnetic alloy core, hard magnetic alloy jacket |
| 08/21/1990 | US4950450 Neodymium iron boron magnets in a hot consolidation process of making the same |
| 08/21/1990 | US4950337 Magnetic and mechanical properties of amorphous alloys by pulse high current |
| 08/21/1990 | US4950335 Process for producing articles for magnetic use |
| 08/16/1990 | EP0381772A1 Plastic-bonded magnet |
| 08/15/1990 | CN1044730A Direct extraction of barium, strontium hard magnetic ferrite by use of open hearth dusts |
| 08/14/1990 | US4948656 Metallic core |
| 08/14/1990 | US4948434 Method for manufacturing Ni-Fe alloy sheet having excellent DC magnetic property and excellent AC magnetic property |
| 08/14/1990 | US4948433 Process for preparation of thin grain oriented electrical steel sheet having excellent iron loss and high flux density |
| 08/14/1990 | US4948422 Method of manufacturing superfine magnetic metal powder |
| 08/14/1990 | CA1272590A1 Ferromatic powder and method for producing the same |
| 08/09/1990 | WO1990008593A1 Method and apparatus for making polycrystaline flakes of magnetic materials having strong grain orientation |
| 08/09/1990 | DE4002330A1 Iron-boron based magnetic material - with transition metal-contg. pptes. formed by rapid solidification and heat treatment |
| 08/09/1990 | DE3902526C1 Metastable metal (alloy) prodn. - by melting metal (alloy), inoculating supercooled melt with different metal (alloy) seed, etc. |
| 08/08/1990 | EP0380866A2 Acrylate copolymers, and magnets using them as binder |
| 08/08/1990 | EP0215134B1 Process for producing unidirectional silicon steel plate with extraordinarily low iron loss |
| 08/07/1990 | US4947065 Stator assembly for an alternating current generator |
| 08/07/1990 | US4946746 Melt spinning a molten metal, heat treatment, quenching |
| 08/07/1990 | US4946623 Process for the production of a ferromagnetic composition, ferromagnetic liquid crystal obtained by this process and apparatus using said liquid crystal |
| 08/07/1990 | US4946613 Photosetting ferrofluid compositions |
| 08/07/1990 | US4946519 Semi-processed non-oriented electromagnetic steel strip having low core loss and high magnetic permeability, and method of making |
| 08/07/1990 | CA1272430A1 Method for producing a grain-oriented electrical steel sheet |
| 08/01/1990 | EP0380136A2 Soft magnetic thin film, method for preparing same and magnetic head |
| 08/01/1990 | EP0379583A1 SINTERED MAGNETIC Fe-Co MATERIAL AND PROCESS FOR ITS PRODUCTION |
| 07/31/1990 | US4945339 Anti-theft sensor marker |
| 07/31/1990 | US4945049 Method for preparing magnetic powder |
| 07/31/1990 | US4944801 Heating, crushing, wet treatment |
| 07/31/1990 | US4944270 Asymmetrical excitation type magnetic device and method of manufacture thereof |
| 07/26/1990 | WO1990008201A1 Nickel-iron base magnetic allow having high permeability |
| 07/26/1990 | DE4001524A1 Mfr. of grain-oriented silicon steel - including blowing slab steel with oxygen-enriched gas prior to de-scaling and hot rolling |
| 07/25/1990 | EP0379062A2 Acicular magnetic iron pigments with an adjustable coercive force, and process for their production; Fe metal pigments for magnetic recording with an adjustable coercive force |
| 07/25/1990 | EP0378823A2 Use of a magnet core in an interface transformer |
| 07/25/1990 | EP0378698A1 Method of producing permanent magnet |
| 07/25/1990 | EP0161245B1 Low density, electromagnetic radiation absorption composition |
| 07/24/1990 | US4943319 Process for producing highly functional composite material and composite material obtained thereby |