| 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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| 07/19/1990 | CA2005027A1 Hot working method for producing grain oriented silicon steel with improved glass film formation |
| 07/14/1990 | CA2007408A1 Acicular iron-magnet pigments having an adjustable coercive field strength and process for producing same |
| 07/11/1990 | EP0377359A1 Oxide superconducting material, process for preparing the same and applications thereof |
| 07/11/1990 | CN1043649A Process for preparing nd-fe-b spherical non-crystalline microcrystalline powder |
| 07/10/1990 | US4940596 Decomposing ferromagnetic complex |
| 07/10/1990 | CA1271394A1 Enhanced remanence permanent magnetic alloy and bodies thereof and method of preparing same |
| 07/04/1990 | EP0376536A2 Thin oriented polymer films containing metal-organic compounds, and methods of making the same |
| 07/04/1990 | EP0376319A2 A composite ferrite material |
| 07/03/1990 | US4938886 Superparamagnetic liquids and methods of making superparamagnetic liquids |
| 07/03/1990 | US4938267 Glassy metal alloys with perminvar characteristics |
| 07/03/1990 | CA1271062A1 Pressure assisted sinter process |
| 06/27/1990 | EP0374948A2 Very thin electrical steel strip having low core loss and high magnetic flux density and a process for producing the same |
| 06/27/1990 | EP0374847A2 Fe-based soft magnetic alloy |
| 06/27/1990 | EP0354929A4 Inductor insert compositions and methods. |
| 06/27/1990 | CN1008570B Process for manufacturing magnetic core with constant permeability |
| 06/26/1990 | US4937098 Surface treating ferromagnetic alloy powders with a triazine thiol, dispersing in binder, and coating on nonmagnetic support |
| 06/26/1990 | US4936929 Refractory amorphous Co-Ta-Hf alloy |
| 06/26/1990 | CA1270729A1 Method for improving base coating formation on silicon steel by controlling winding tension |
| 06/20/1990 | CN1008489B Composition of soft-magnetic material and shaping method thereof |
| 06/19/1990 | US4935201 Consisting of molybdenum, boron, calcium and the impurities sulfur, phosphorus, carbon, oxygen and nitrogen |
| 06/19/1990 | US4935075 Permanent magnet |
| 06/19/1990 | US4935074 Magnetic material comprising iron, boron and a rare earth metal |
| 06/14/1990 | WO1990006346A1 Magnetic coating compositions containing fluoropolyols |
| 06/13/1990 | EP0372948A2 Permanent magnet composition |
| 06/13/1990 | DE3833251C1 Active magnetic regenerator |
| 06/13/1990 | CN1043034A Method of manufacturing permanent magnet |
| 06/12/1990 | US4933059 Sputtering |
| 06/12/1990 | US4933026 Soft magnetic alloys |
| 06/12/1990 | US4933025 Method for enhancing magnetic properties of rare earth permanent magnets |
| 06/12/1990 | US4933014 Cobalt compound coating |
| 06/12/1990 | US4933009 Contains rare earth oxide |
| 06/12/1990 | US4933004 Preparation of acicular ferromagnetic metal particles of substantially iron |
| 06/06/1990 | CN1042794A Magnetic materials containing rare earth element iron nitrogen and hydrogen |
| 06/05/1990 | US4931613 Electrical discharge scribing for improving core loss of grain-oriented silicon steel |
| 06/05/1990 | US4931198 Magnetic particles composed mainly of FeC and a process for preparing same |
| 06/05/1990 | US4931092 Method for producing metal bonded magnets |
| 05/31/1990 | DE3840414A1 Process for producing a body containing a hard magnetic material |
| 05/30/1990 | EP0370939A2 Process to obtain fine magnetic Nd-Fe-B particles of various sizes |
| 05/29/1990 | US4929400 Production of monodisperse, polymeric microspheres |
| 05/29/1990 | US4929286 Method for producing a grain-oriented electrical steel sheet |
| 05/29/1990 | US4929275 Magnetic alloy compositions and permanent magnets |
| 05/24/1990 | CA2003715A1 Process to obtain ultra fine magnetic nd-fe-b particles of various sizes |
| 05/23/1990 | EP0369897A1 Process for the preparation of magnetic hexaferrite particles, particles obtained and product containing them |
| 05/23/1990 | EP0369462A1 Method of producing polar anisotropic rare earth magnet |
| 05/23/1990 | EP0369217A2 Magnetic material, method of producing the same, and magnetic head |
| 05/23/1990 | EP0369097A1 Magnetic materials containing rare earth element iron nitrogen and hydrogen |
| 05/22/1990 | US4927473 Compressed magnetic powder core |
| 05/22/1990 | CA1269234A1 Preparation of ferromagnetic chromium dioxide |
| 05/17/1990 | WO1990005367A1 Magnetic powder, its production method, magnetic recording medium and magnetic recording method |
| 05/17/1990 | DE3938177A1 Stossstrom-unterdrueckungsschaltung und magnetische einrichtung darin Surge current-unterdrueckungsschaltung and magnetic device is |
| 05/16/1990 | EP0368676A2 Process for producing ultrafine metal particles |
| 05/16/1990 | EP0368093A2 Preparation of acicular ferromagnetic material essentially consisting of chromium dioxide with iron |
| 05/15/1990 | US4925502 Iron-cobalt type soft magnetic material |
| 05/15/1990 | US4925501 Expolosive compaction of rare earth-transition metal alloys in a fluid medium |
| 05/15/1990 | CA1269029A1 Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy |
| 05/09/1990 | EP0367144A2 Laminated magnetic material and method of producing the same |
| 05/09/1990 | CN1042024A Method of de-calcifying rare-earth metals formed by a reduction-diffusion process |
| 05/08/1990 | US4923533 Iron-boron-silicon alloy |
| 05/08/1990 | US4923519 Magnetic iron oxide pigments and a process for their preparation |
| 05/03/1990 | WO1990004570A1 Method for preparing magnetic particles of hexaferrites, particles obtainted and product containing them |
| 05/03/1990 | DE3936519A1 Magnetic alloy layer for magnetic head - is used as interface providing high recording density performance |
| 05/02/1990 | EP0366370A2 Plate-like composite oxide fine particles containing mainly Ba and Fe, and a process for producing the same |
| 05/02/1990 | CN1007847B Process for producing magnets having improved corrosion resistance |
| 05/01/1990 | US4921553 Magnetically anisotropic bond magnet, magnetic powder for the magnet and manufacturing method of the powder |
| 05/01/1990 | US4921551 Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy |
| 04/25/1990 | EP0365498A1 Electrically conductive fluids |
| 04/25/1990 | EP0365079A1 Method of manufacturing a permanent magnet |
| 04/24/1990 | US4920010 Particles composed of iron compound, silicon compound layer, nonferrous transition metal layer; oxidation resistance |
| 04/24/1990 | US4920009 Method for producing laminated bodies comprising an RE-FE-B type magnetic layer and a metal backing layer |
| 04/24/1990 | US4919858 Mixture of particulate magnetic material and organic material in a mold which is rotated material is crosslinked by heat |
| 04/24/1990 | US4919776 Formation of metal layer on the surface of metal oxide particles |
| 04/24/1990 | US4919734 Compressed magnetic powder core |
| 04/24/1990 | US4919733 Method for refining magnetic domains of electrical steels to reduce core loss |
| 04/24/1990 | US4919732 Iron-neodymium-boron permanent magnet alloys which contain dispersed phases and have been prepared using a rapid solidification process |
| 04/24/1990 | CA1268102A1 Method of stress-relief annealing a magnetic core containing amorphous material |
| 04/19/1990 | WO1990004042A1 Iron/cobalt alloy filaments |
| 04/18/1990 | EP0364089A1 Method of de-calcifying rare-earth metals formed by a reduction-diffusion process |
| 04/18/1990 | EP0363457A1 Elctromagnet for an atomic absorption spectrometer. |
| 04/18/1990 | CN1007673B Nd fe b permanent magnet with high using temp. and process for producing thereof |
| 04/17/1990 | US4917778 Process for the corrosion protection of neodymium-iron-boron group sintered magnets |
| 04/17/1990 | US4917736 Method of transforming a passive ferromagnetic material into a permanent magnet |
| 04/17/1990 | US4917724 Method of decalcifying rare earth metals formed by the reduction-diffusion process |
| 04/11/1990 | EP0362812A2 Bonded isotropic R-Fe-B-magnet and method for making it |
| 04/11/1990 | EP0362805A2 Permanent magnet and method for producing the same |
| 04/11/1990 | CN1041238A High-magnetism and directionally-solidified machinable rare-earth cobalt permanent-magnet material |
| 04/11/1990 | CN1007521B Permanent magnet made from the rare-earth with very low coercive force transition metal, boron alloy |
| 04/10/1990 | US4915750 Annealing, electron beam treatment |
| 04/10/1990 | US4915728 Iron/cobalt alloy filaments |
| 04/10/1990 | EP0302912A4 Process for preparation of monodispersed barium containing ferrites. |
| 04/05/1990 | WO1990003652A1 Metallic glass alloys for mechanically resonant target surveillance systems |
| 04/04/1990 | EP0361967A1 Planar inductor |
| 04/04/1990 | EP0361698A1 Carbon-containing magnetic metal powder |
| 04/04/1990 | EP0361308A1 Corrosion-resistant permanent magnet and method for preparing the same |
| 04/03/1990 | US4913890 Heating precipitated iron/iii/ hydroxide and complexing agent as unfiltered aqueous suspension |
| 04/03/1990 | US4913750 Amorphous magnetic wire |
| 04/03/1990 | US4913745 Method for producing a rare earth metal-iron-boron anisotropic bonded magnet from rapidly-quenched rare earth metal-iron-boron alloy ribbon-like flakes |
| 04/03/1990 | US4913737 Mixing, kneading metallic powder and water-based binder, extruding, heating to remove binder, sintering, twisting; high density, toughness |
| 03/28/1990 | EP0360120A1 Preparation process of a material including a hard magnetic phase from powder components |
| 03/27/1990 | US4911957 Method of forming ferrite film on particles or fibers |
| 03/27/1990 | US4911882 Process for producing permanent magnets |