| 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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| 09/11/1991 | EP0445153A1 Magnetic coating compositions containing fluoropolyols |
| 09/11/1991 | CN1054503A Low-magnetic-moment magneto-optical material without rare-earth and preparing process thereof |
| 09/11/1991 | CN1054502A 稀土合金 Rare earth alloy |
| 09/10/1991 | US5047296 Composite magnetic material and its production process |
| 09/10/1991 | US5047205 Method and assembly for producing extruded permanent magnet articles |
| 09/10/1991 | US5047161 Magnetic recording media |
| 09/05/1991 | DE4006568A1 Prodn. of highly coercive magnetic material - by grinding molten initial product to partially amorphous intermediate and then heat treating |
| 09/04/1991 | EP0445094A1 High strength stainless steel |
| 09/03/1991 | US5044613 Uniform and homogeneous permanent magnet powders and permanent magnets |
| 08/28/1991 | EP0443647A1 Hot-worked rare earth-iron-carbon magnets |
| 08/28/1991 | CN1054101A Amorphous fe-b-si alloys exhibiting enhanced ac magnetic properties and handleability |
| 08/22/1991 | WO1991012617A1 Amorphous fe-b-si alloys exhibiting enhanced ac magnetic properties and handleability |
| 08/21/1991 | EP0442022A2 Method of forming ferrite coatings |
| 08/20/1991 | US5041172 Permanent magnet having good thermal stability and method for manufacturing same |
| 08/20/1991 | US5041171 Hard magnetic material |
| 08/20/1991 | CA1287750C Process for producing permanent magnet materials |
| 08/14/1991 | EP0441616A2 Anisotropic plastic bonded magnet of the Nd-Fe-B-type and method for making same |
| 08/13/1991 | US5039559 Method of making magnetically attractable particles |
| 08/13/1991 | US5039553 Treating magnetic iron oxide powder with alkaline solution, adding cobalt salt, heating under pressure |
| 08/13/1991 | US5039464 Process for densifying a ceramic part |
| 08/13/1991 | US5039292 Device for manufacturing magnetically anisotropic magnets |
| 08/13/1991 | CA1287509C Process for producing magnetic materials |
| 08/13/1991 | CA1287507C Method for producing rare earth alloy |
| 08/08/1991 | WO1991011815A1 Iron-rich metallic glasses having high saturation induction and superior soft ferromagnetic properties at high magnetization rates |
| 08/08/1991 | CA2071930A1 Iron-rich metallic glasses having high saturation induction and superior soft ferromagnetic properties at high magnetization rates |
| 08/07/1991 | EP0439524A1 Method for preparing magnetic particles of hexaferrites, particles obtainted and product containing them |
| 08/06/1991 | US5037494 Amorphous alloy for strip-shaped sensor elements |
| 08/06/1991 | US5037492 Mixing elemental zinc or other metals to melted alloy, solidification by quenching, heating and hot pressing |
| 08/02/1991 | WO1991011816A1 Magnetic dispersion |
| 08/02/1991 | CA2046885A1 Magnetic dispersion |
| 08/01/1991 | DE4030791A1 Alloy with enhanced saturation flux density - contg. cobalt, germanium, aluminium and iron used for magnetic video items, has outstanding magnetic properties |
| 07/31/1991 | EP0439367A2 Magnetic toner particles containing iron as the main component and process for producing the same |
| 07/31/1991 | EP0439103A2 Ferromagnetic la-ba-cu-o compound and ferromagnetic device containing same |
| 07/31/1991 | EP0438601A1 Insulation coating composition for electric sheet and method of insulation coating of electric sheet |
| 07/31/1991 | EP0438592A1 Production method of unidirectional electromagnetic steel sheet having excellent iron loss and high flux density |
| 07/30/1991 | US5035960 Porous aluminum oxide film with iron, cobalt and/or nickel magnetic material deposited in the pores |
| 07/30/1991 | US5035947 Powders containing iron, manganese, alkaline earth metals |
| 07/30/1991 | US5035755 Amorphous metal alloys having enhanced AC magnetic properties at elevated temperatures |
| 07/24/1991 | EP0437851A2 Process for preparation of resin composition for powder molding and process for production of powder molded product |
| 07/24/1991 | EP0322420B1 Magnetic recording material |
| 07/24/1991 | CN1013323B Method for producing rare earth alloy |
| 07/23/1991 | US5034146 Rare earth metal with iron or cobalt to form an alloy, pulverization, blending and compression molding |
| 07/23/1991 | US5034145 Polysiloxane or polyethersiloxane matrix for encapsulation of magnetizable particles |
| 07/23/1991 | CA1286793C Thermal conductor assembly |
| 07/23/1991 | CA1286553C Process for applying an insulating layer |
| 07/17/1991 | EP0269667B1 Method for the preparation of permanent magnets by division of crystals |
| 07/16/1991 | US5032947 Method of improving magnetic devices by applying AC or pulsed current |
| 07/16/1991 | US5032355 Method of manufacturing sintering product of Fe-Co alloy soft magnetic material |
| 07/16/1991 | CA1286100C Magnetic powders for magnetic recording media and magnetic recording media employing said magnetic powder therein |
| 07/10/1991 | EP0436450A1 Magnetisable core-shell microspheres based on crosslinked organopolysiloxane, their preparation process and their biological use |
| 07/10/1991 | EP0435885A1 Metallic glass alloys for mechanically resonant target surveillance systems. |
| 07/09/1991 | US5031063 Magnetic head for use in a magnetic recording apparatus using a soft magnetic alloy film consisting primarily of cobalt |
| 07/09/1991 | US5030371 Process for preparing acicular ferromagnetic material consisting essentially of iron-containing chromium dioxide |
| 07/03/1991 | EP0435785A1 Magnetisable composite microspheres based on a crosslinked organosilicon polymer, their preparation process and their biological use |
| 07/03/1991 | EP0435680A2 Fe-based soft magnetic alloy, method of producing same and magnetic core made of same |
| 07/03/1991 | CN1052746A 永久磁体 Permanent magnet |
| 07/02/1991 | US5029291 Electromagnetic sensor element and methods and apparatus for making and using same |
| 07/02/1991 | US5028347 Flame-retardant magnetic composite resin composition |
| 07/02/1991 | US5028279 Roughening the surface, glass adheres to oxide layer which partially protrudes into steel sheet |
| 07/02/1991 | US5028278 Forming silicon compound and transition metal compound layers on iron oxide particle, reduction to the metal, magnetic recording media |
| 07/02/1991 | US5028269 Co-containing magnetic pigments, processes for the production thereof and the use thereof |
| 06/28/1991 | CA2033145A1 Magnetizable "core-shell" microspheres containing a cured organopolysiloxane; process for preparing the same and their use in biology |
| 06/28/1991 | CA2033144A1 Magnetizable composite microspheres containing a cured polysilsesquioxane; process for preparing the same and their use in biology |
| 06/26/1991 | EP0434669A2 Method of making a coated magnetic powder and a compressed magnetic powder core |
| 06/26/1991 | EP0434113A2 Alloying low-level additives into hot-worked Nd-Fe-B magnets |
| 06/26/1991 | EP0433894A1 Process for producing magnetic metal powder for magnetic recording |
| 06/26/1991 | EP0277243B1 Process for forming insulating film on electrical sheet |
| 06/26/1991 | CN1052568A Process for producing permanent magmets and products thereof |
| 06/25/1991 | US5026518 Compacting; sintering; sealing agent; outer coating, corrosion resisant, magnetic stability |
| 06/25/1991 | US5026438 Method of making self-aligning anisotropic powder for magnets |
| 06/25/1991 | US5026419 Magnetically anisotropic hotworked magnet and method of producing same |
| 06/20/1991 | CA2023924A1 Alloying low-level additives into hot-worked nd-fe-b magnets |
| 06/19/1991 | EP0432732A2 Thermal flattening semi-processed electrical steel |
| 06/18/1991 | US5024542 Magnetic actuator |
| 06/15/1991 | WO1991009141A1 Magnetically responsive fluorescent polymer particles and application thereof |
| 06/12/1991 | EP0432060A1 Permanent magnet alloy of the type iron-neodymium-boron, sintered permanent magnet and manufacturing process |
| 06/12/1991 | CN1052212A Heat treatment method of permanent-magnet material |
| 06/11/1991 | US5022939 Incorporating some of the cesium into the glass |
| 06/05/1991 | EP0430278A1 Rare earth-iron-boron permanent magnet |
| 06/05/1991 | EP0430198A2 Rare earth-based permanent magnet having corrosion resistant surface film and method for the preparation thereof |
| 06/05/1991 | EP0430085A2 Magnetic alloy with ultrafine crystal grains and method of producing same |
| 06/05/1991 | EP0429651A1 Iron base, soft magnetic steel material |
| 06/04/1991 | US5021315 Method for making magnetic particles having improved conductivity and their use in electrostatographic printing applications |
| 06/04/1991 | CA1284612C Enhanced remanence permanent magnetic alloy and bodies thereof |
| 06/02/1991 | CA2031242A1 Fe, nd and b alloy for permanent magnet; sintered permanent magnet and process therefor |
| 05/29/1991 | EP0429022A2 Magnetic alloy with ulrafine crystal grains and method of producing same |
| 05/29/1991 | EP0428718A1 Improved magnetic materials and process for producing the same |
| 05/29/1991 | CN1051818A Anticorrosive rare-earth-transition metal series magnet and method thereof |
| 05/28/1991 | US5019190 Fe-based soft magnetic alloy |
| 05/22/1991 | EP0428155A2 Rare earth-iron-garnet fine particles and magneto-optical material using the same |
| 05/22/1991 | CN1051635A Biphase rare earth permanent-magnet alloy material |
| 05/21/1991 | US5017247 Coercive force |
| 05/16/1991 | DE3941974A1 Low magnetic efficiency material - used as stators and rotors in current generators |
| 05/15/1991 | EP0427227A2 Fibrous anisotropic permanent magnet and production process thereof |
| 05/14/1991 | US5015993 Ferromagnetic alloys with high nickel content and high permeability |
| 05/14/1991 | US5015992 Cobalt-niobium amorphous ferromagnetic alloys |
| 05/14/1991 | US5015699 Polyimines from hydrazine or diamines and diketones and reaction with iron ions |
| 05/14/1991 | US5015307 Corrosion resistant rare earth metal magnet |
| 05/14/1991 | US5015306 Method for preparing rare earth-iron-boron sintered magnets |
| 05/14/1991 | US5015304 Rare earth-iron-boron sintered magnets |