Patents
Patents for H01F 1 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties (23,146)
10/1987
10/21/1987EP0242032A2 Method of producing low core losses in oriented silicon steels
10/21/1987CN86102259A Production method of anisotropic hard magnet
10/20/1987US4701276 Super paramagnetic fluids and methods of making super paramagnetic fluids
10/20/1987US4701275 Testing system
10/14/1987EP0240770A1 Coated chromium dioxide particles
10/14/1987EP0240755A1 Heat treating method for obtaining a flat magnetization curve in amorphous cores
10/14/1987EP0240600A1 Glassy metal alloys with perminvar characteristics
10/14/1987EP0240529A1 Compositions of particulate magnetic oxides with a structure of the lacunar spinel type, preparation and application thereof.
10/07/1987EP0239838A1 Application of a fast quenched alloy to an iron-chrome-cobalt base
10/07/1987EP0239688A1 Annealing separator used in the finishing annealing step for producing a grain-oriented electrical steel sheet
10/06/1987US4698272 Extra-low iron loss grain oriented silicon steel sheets
10/06/1987US4698182 Autoclaving alkaline aqueous suspension of metal compounds followed by treatment with a silicon compound and heating; coercive force
09/1987
09/30/1987EP0239087A2 Process for the stabilization of acicular ferromagnetic chromium dioxide
09/30/1987EP0239052A2 Magnetic-shielding material
09/30/1987EP0239031A1 Method of manufacturing magnetic powder for a magnetically anisotropic bond magnet
09/30/1987EP0238713A2 Process for the preparation of chromium III oxide
09/30/1987CN86100769A Reductive diffusion process for making permanent magnetic alloy powder
09/29/1987US4696725 Magnetic core and preparation thereof
09/23/1987EP0237944A2 Process for the preparation of acicular alpha-iron-III oxide
09/23/1987EP0237943A2 Process for the preparation of acicular alpha-iron-III oxide
09/23/1987EP0237587A1 Method for producing a rare earth alloy and rare earth alloy
09/23/1987CN87100530A Permanent magnet made from the rare-earth with very low coercive force transition metal, boron alloy
09/22/1987US4695333 Iron-chromium-base spinodal decomposition-type magnetic (hard or semi-hard) alloy
09/22/1987CA1227072A1 Method for producing iron-silicon alloy articles
09/16/1987EP0237416A1 A rare earth-based permanent magnet
09/16/1987CN86102344A Method for producing rare earth alloy
09/15/1987US4693931 Magnetic recording medium and magnetic particles therefor
09/09/1987EP0235165A1 Pressure assisted sinter process
09/08/1987US4692193 Decarburization step after hot-rolling and before final cold-rolling
09/08/1987CA1226456A1 Method and apparatus for producing acicular iron or iron alloy particles
09/02/1987EP0234790A1 Permanent magnetic alloy comprising gold, platinum and cobalt
09/02/1987EP0234476A1 Permanent magnet and process for producing the same
09/01/1987US4690778 Electromagnetic shielding material
09/01/1987US4690768 Process for the preparation of ferrite magnetic particulate for magnetic recording
08/1987
08/25/1987US4689163 Resin-bonded magnet comprising a specific type of ferromagnetic powder dispersed in a specific type of resin binder
08/25/1987US4689086 Stabilized magnetic pigments
08/25/1987US4689073 Method for production of rare-earth element/cobalt type magnetic powder for resin magnet
08/18/1987US4687878 Separation of hydrocarbons using magnetizable adsorbents
08/18/1987US4687596 Polar carrier, polyol, magnetic particles, surfactant
08/12/1987EP0231620A2 Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy
08/11/1987US4686142 Process for the production of iron oxides epitaxially coated with cobalt the coated oxides and their cue
08/11/1987US4685980 Quick melting and rapid cooling; transformers
08/05/1987EP0231128A2 Plate-like barium ferrite particles and process for producing the same
08/04/1987US4684406 Permanent magnet materials
07/1987
07/29/1987EP0229946A1 Permanent magnetic alloy
07/29/1987EP0229846A1 Process for producing silicon steel sheet having soft magnetic characteristics
07/28/1987US4683167 Cores, cobaltous hydroxide-ferrous hydroxide coating, zinc ion
07/22/1987EP0229646A2 Method for producing a grain-oriented electrical steel sheet having an ultra low watt loss
07/22/1987EP0229478A2 Microcrystalline alloys prepared from solid state reaction amorphous or disordered metal alloy powders
07/21/1987US4682137 Magnetizing apparatus for the magnetization of keys and rotors of magnetic safety lock systems
07/21/1987US4681623 Process for producing alloy powder containing rare earth metals
07/15/1987EP0228839A2 Bicomponent ceramic fibers
07/14/1987US4680130 Preparation of finely divided isotropic ferrite powders having the spinel structure
07/07/1987CA1223761A1 Iron-boron solid solution alloys having high saturation magnetization and low magnetostriction
07/07/1987CA1223756A1 Amorphous alloys for electromagnetic devices
07/07/1987CA1223755A1 Amorphous metals and articles made thereof
07/01/1987EP0226738A1 Filamented, hollow microspheres and applications thereof
06/1987
06/30/1987US4677024 Magnetic recording medium
06/23/1987US4675170 Preparation of finely divided acicular hexagonal ferrites having a high coercive force
06/23/1987CA1223139A1 Amorphous iron-based alloy excelling in fatigue property
06/19/1987DE3640647A1 Particles containing cobalt carbide
06/16/1987US4673997 Electrically conductive ferrofluid bearing and seal apparatus and low-viscosity electrically conductive ferrofluid used therein
06/16/1987EP0225619A2 Grain-oriented electrical steel sheet having improved glass film properties and low watt loss and a process for producing same
06/16/1987EP0225392A1 Resin-bonded magnetic composition and process for producing magnetic molding therefrom
06/09/1987US4671885 Process for the preparation of magnetized hexagonal ferrites, use of these ferrites as base materials for magnets or for magnetic recording
06/09/1987CA1222648A1 Cobalt rich manganese containing near-zero magnetostrictive metallic glasses having high saturation induction
06/09/1987CA1222647A1 Near-zero magnetostrictive glassy metal alloys with high magnetic and thermal stability
06/09/1987CA1222646A1 Metallic glasses having a combination of high permeability, low coercivity, low ac core loss, low exciting power and high thermal stability
06/02/1987US4670177 Oxidation
05/1987
05/27/1987EP0223336A1 Transition metal poly(benzodithiolenes)
05/27/1987EP0223265A2 A method for manufacturing the working material used in a magnetic refrigerator
05/26/1987USRE32428 Amorphous antipilferage marker
05/26/1987USRE32427 Amorphous antipilferage marker
05/26/1987US4668414 Process for producing acicular particles containing an iron carbide
05/26/1987US4668310 Iron, cobalt, nickel; hafnium; third element
05/26/1987US4668283 Magnetic powder and production process thereof
05/19/1987US4666535 Method of producing low core losses in oriented silicon steels
05/19/1987US4666534 Non-oriented electrical steel sheet having a low watt loss and a high magnetic flux density and a process for producing the same
05/13/1987EP0221765A2 Ferrite-ceramic composite powder and method of manufacturing the same
05/13/1987EP0221595A1 Method of providing a bonding, electrically insulating layer, metal ribbon coated with such a layer, and low-loss magnet core
05/13/1987CN85104348A 2-17 type rare-earth permanent magnet having temperature compensation
05/12/1987US4664947 Multi-layer process for cobalt treatment of ferromagnetic oxides
05/12/1987US4664841 Fine particle substance-containing non-aqueous dispersions
05/12/1987US4664831 Preparation of finely divided ferrite powders
05/12/1987US4664724 Permanent magnetic alloy and method of manufacturing the same
05/12/1987US4664723 Samarium-cobalt type magnet powder for resin magnet
05/06/1987EP0220940A2 Process and apparatus for improvement of iron loss of electromagnetic steel sheet or amorphous material
05/06/1987EP0220586A2 Fine isometric hexaferrite pigments with a W structure, process for preparing same and use thereof
05/06/1987EP0220321A1 Soft magnetic material composition and method of molding the same
05/05/1987US4663066 Magnetic rare earth/iron/boron and rare earth/cobalt/boron hydrides, the process for their manufacture of the corresponding pulverulent dehydrogenated products
05/05/1987US4662954 Method for improving base coating formation on silicon steel by controlling winding tension
04/1987
04/29/1987EP0219611A1 Method for producing a grain-oriented electrical steel sheet
04/28/1987US4661408 Hydrolytically stable solid supports in heterogeneous immunoassays and bioaffinity separations
04/28/1987US4661174 Hot rolling, annealing, cold rolling, annealing
04/22/1987CN85107789A Surface treatment for magnetic particle with chemical agent
04/21/1987CA1220829A1 Ambient light ad electromagnetic noise reduction circuit
04/16/1987DE3536116A1 Process for stabilising acicular ferromagnetic chromium dioxide
04/15/1987EP0217966A1 Process for producing a multipolar magnet
04/14/1987US4657816 Ferromagnetic recording materials
04/14/1987US4657605 Circular criss-sections and stability against bias magnetic field; manganese-containing cobalt alloy