Patents
Patents for H01F 1 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties (23,146)
03/1989
03/14/1989US4812181 Method of achieving a flat magnetization loop in amorphous cores by heat treatment
03/09/1989WO1989002156A1 OPTIMIZATION OF THE MICROSTRUCTURE OF SINTERED Fe-Nd-B MAGNETS
03/08/1989EP0306041A2 Noise suppression assembly
03/08/1989EP0305819A2 Ferromagnetic metal powder and process for preparation thereof
03/08/1989CN1031622A Method and equipment for producing barium ferrite from high-carbon iron scale
03/07/1989US4810572 Molding, rare earth, epoxy-crosslinked polyester binder
03/07/1989US4810524 Plasma polymerization
03/07/1989US4810431 Method of manufacturing plastic particles for a particle display
03/07/1989US4810402 Homogeneous mixture of required cations with thermally decomposable anion
03/07/1989US4810401 Superparamagnetic solid particles
03/07/1989US4810309 Method of manufacturing flakes from a magnetic material having a preferred crystallite orientation, flakes and magnets manufactured therefrom
03/01/1989EP0305069A2 A process for producing a ferromagnetic metal powder having an oxidized coating
03/01/1989EP0305038A2 Method of annealing an aperture shadow mask for a colour cathode ray tube
03/01/1989EP0304851A2 Process for the preparation of modified ferromagnetic chromium dioxide
03/01/1989CN1031443A Starting material for permanent magnets
02/1989
02/28/1989US4808464 Thin glass coating; silicon dioxide
02/28/1989US4808327 Compositions of particulate magnetic oxides with a defect spinel structure, preparation thereof and application thereof
02/28/1989US4808326 Resin-bonded magnetic composition and process for producing magnetic molding therefrom
02/28/1989US4808279 Process for preparing magnetic recording material
02/28/1989US4808224 Method of consolidating FeNdB magnets
02/28/1989US4808216 Gas phase pyrolysis of diluted transition metal carbonyl in magnetic field
02/23/1989WO1989001533A1 Magnetic core material for high frequency made of fe-co base alloy
02/23/1989WO1989001521A1 Process for producing magnetic powder
02/22/1989EP0304134A2 Magnetic resin composition
02/22/1989EP0304113A1 Starting material for permanent magnets
02/22/1989EP0304054A2 Rare earth-iron-boron magnet powder and process of producing same
02/21/1989US4806265 Amorphous ferromagnetic oxides
02/21/1989US4806176 Precipitation of aluminum nitride, annealing, hot & cold rolling
02/21/1989US4806155 Calcium chloride-free; calcium oxide and then hydroxide formation and removal by water washing
02/15/1989EP0303324A1 Magnetic material, method of manufacturing this material and a magnetic head provided with this material
02/15/1989EP0303151A1 Fine-grained magnetic hexaferrite pigments containing boron, process for their production and their use
02/15/1989EP0302947A1 Rare earth element-iron base permanent magnet and process for its production
02/15/1989EP0302912A1 Process for preparation of monodispersed barium containing ferrites
02/15/1989CN1003286B Reductive diffusion process for making permanent magnetic alloy powder
02/14/1989US4804561 Process for producing ferromagnetic metal fine particles
02/08/1989EP0302598A1 Method of lubrication during hot working of rare earth-transition metal alloys
02/08/1989EP0302395A1 Permanent magnets
02/08/1989EP0302355A1 Fe-base soft magnetic alloy powder and magnetic core thereof and method of producing same
02/07/1989US4803006 Stacked donor-acceptor molecular
02/07/1989US4802931 Fine crystal structure with boron; high coercive force and remanance
02/01/1989EP0301561A2 Magnetic shield-forming magnetically soft powder, composition thereof, and process of making
02/01/1989EP0301559A2 Spin castable mixtures useful for making deep-UV contrast enhancement layers
02/01/1989CN1030843A Using mechanically alloying method to producing new magnetic material-crystalloid silicon-steel powder and its application
01/1989
01/31/1989US4801340 Alloy of rare earth metal, iron and-or cobalt, boron
01/26/1989WO1989000754A1 Process for manufacturing a material having predetermined dielectric, pyroelectric and/or magnetic properties and its use
01/26/1989DE3802150A1 Verfahren zum herstellen eines bezueglich seiner dielektrischen, pyroelektrischen und/oder magnetischen eigenschaften vorgebbaren materials und dessen verwendung A process for the manufacture of a with respect to its dielectric, pyroelectric and / or magnetic properties of the material and its use predeterminable
01/25/1989EP0300310A2 Process for producing particulate magnetic pigments of hexaferrite
01/24/1989US4799969 To improve glass-like insulation film
01/18/1989EP0299846A1 Magnetizable microspheres based on polysiloxane, their preparation and their use
01/18/1989EP0299618A2 Preparation process for ferromagnetic metal fibers
01/18/1989EP0299590A2 Method for producing dysprosium-iron-boron alloy powder
01/18/1989EP0299498A1 Magnetic core and method of producing same
01/17/1989US4798622 High performance magnetic recording layer
01/12/1989DE3811655A1 Multipolar cylindrical permanent magnet - comprises sintered rare-earth iron-boride with optimised thickness for highest flux density and cracking resistance
01/11/1989EP0298764A2 Magnetic polymer compositions
01/04/1989EP0297793A2 Thermal conductor assembly
01/04/1989EP0297565A1 Sintered ferrite body, chip inductor, and composite LC part
01/04/1989EP0297392A2 Process for preparing finely divided barium hescaferrite pigments from halide molten masses and use thereof
01/04/1989EP0210244B1 Facetted nodular particles, their preparation and use
12/1988
12/27/1988US4793874 Permanent magnetic alloy and method of manufacturing the same
12/21/1988EP0295779A2 Method of manufacturing, concentrating, and separating enhanced magnetic parameter material from other magnetic co-products
12/20/1988US4792368 Magnetic materials and permanent magnets
12/20/1988US4792367 Hot pressing, cooling; magnets
12/20/1988CA1246968A1 Grain-oriented electrical steel sheet having stable magnetic properties resistant to stress-relief annealing, and method and apparatus for producing the same
12/15/1988WO1988010002A1 Process for producing ultrafine magnetic metal powder
12/14/1988EP0294981A1 Method of producing grain-oriented silicon steel with small boron additions
12/07/1988EP0293685A2 Process for the preparation of stabilized acicular ferromagnetic chromiumdioxide
12/06/1988US4789494 Magnetic recording media
11/1988
11/30/1988EP0293286A1 Method and device for manufacturing articles for magnetic use
11/24/1988DE3716005A1 Process for producing a magnet material based on Pr, Co and B
11/24/1988DE3714783A1 Printing ink and use thereof
11/23/1988EP0291726A2 Amorphous alloy for strip-shaped sensor elements
11/22/1988US4786430 Glassy boron matrix
11/22/1988US4786319 Proces for the production of rare earth metals and alloys
11/15/1988US4784827 Nonmagnetic steel for cryogenic use
11/15/1988CA1244675A1 Acicular ferromagnetic metal particles
11/09/1988EP0290263A1 Platelike magnetic powder and its manufacturing method and a recording medium which use the platelike magnetic powder
11/09/1988EP0290196A2 Method for improving magnesium oxide steel coatings using non-aqueous solvents
11/09/1988EP0290177A1 Process for producing ultrafine metal powder
11/09/1988EP0290175A1 Capacitive electrical discharge scribing for improving core loss of grain-oriented silicon steel
11/09/1988EP0290174A1 Electrical discharge scribing for improving core loss of grain-oriented silicon steel
11/09/1988EP0289979A1 Plastic magnets
11/09/1988EP0289680A2 Permanent magnet and method of producing the same
11/09/1988EP0289599A1 Process for producing permanent magnets
11/08/1988CA1244322A1 Hot pressed permanent magnet having high and low coercivity regions
11/02/1988EP0288768A2 Method of forming a laminate and the product thereof
11/02/1988EP0288637A2 Permanent magnet and method of making the same
11/01/1988US4781851 Preparation of ferromagnetic chromium dioxide
11/01/1988US4781754 Rapid solidification of plasma sprayed magnetic alloys
10/1988
10/26/1988EP0288010A2 Rare earth metal-iron group metal target, alloy powder therefor and method of producing same
10/25/1988US4780226 Dry glass lubricants
10/25/1988US4780155 Capacitive electrical discharge scribing for improving core loss of grain-oriented silicon steel
10/19/1988CN87101007A Amorphous material used for transformer and its oxidation treatment method
10/18/1988US4778542 Controlling crystal size; heating; homogeneous alloy
10/12/1988EP0286357A2 Multiphase permanent magnet of the Fe-B-MM type
10/12/1988EP0286324A1 Magnets
10/12/1988EP0285990A1 A rare-earth permanent magnet
10/11/1988US4776980 Inductor insert compositions and methods
10/11/1988US4776902 Mixing alloy, sintering aid, refractory particles, aligning, compaction, sintering
10/06/1988DE3808234A1 Nd-Fe-B group permanent magnet materials