Patents
Patents for H01F 1 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties (23,146)
08/1977
08/16/1977US4042429 Magnetic alloys having wasp-waisted magnetic hysteresis loop
08/16/1977US4042382 Temperature-stable non-magnetic alloy
07/1977
07/26/1977US4038073 Cobalt, iron, boron, carbon
07/19/1977US4036638 Soft magnetic properties
07/05/1977US4033891 Magnetic particle powder of acicular ferric oxide used for magnetic recording material and a process for producing the same
06/1977
06/28/1977US4032675 Method for producing coated electrical steel sheets having excellent punchability, weldability, electrical insulation and heat resistance
06/28/1977US4032366 Grain-oriented silicon steel and processing therefor
06/21/1977US4030950 Process for cube-on-edge oriented boron-bearing silicon steel including normalizing
06/21/1977US4030913 Nitro compounds
06/21/1977US4030892 Flexible electromagnetic shield comprising interlaced glassy alloy filaments
06/14/1977US4028905 PrNi5 as a cryogenic refrigerant
06/07/1977US4028144 Cobalt-nickel-chromium-copper or titanium-iron
05/1977
05/31/1977US4026981 Method of manufacturing a photomagnetic material having garnet structure
05/31/1977US4026713 Water based magnetic inks and the manufacture thereof
05/24/1977US4025611 Ferrous hydroxide suspension
05/24/1977US4025448 Superparamagnetic wax compositions useful in magnetic levitation separations
05/24/1977US4025379 Method of making laminated magnetic material
05/17/1977US4023991 Anisotropic permanent magnet of Mn-Al-C alloy
05/17/1977US4023990 Dynamo or electro band
05/17/1977US4023965 Magnetism
05/10/1977US4022701 High-performance anisotropic plastics magnet and a process for producing the same
05/03/1977US4021273 Hysteresis alloy
04/1977
04/26/1977US4020475 Magnetic device operating with the photomagnetic effect
04/26/1977US4019995 Lignosulfonate composition and process for its preparation
04/26/1977US4019994 Process for the preparation of aqueous magnetic material suspensions
04/19/1977US4018882 Reducing a-iron oxide to magnetite then oxidizing
04/19/1977US4018691 Aryl sulfonate-aldehyde composition and process for its preparation
04/12/1977US4017694 Method for making loudspeaker with magnetic fluid enveloping the voice coil
04/12/1977US4017303 Manufacture of acicular ferromagnetic metal pigments containing iron
03/1977
03/29/1977US4015030 Heat treatment
03/29/1977US4014717 Method for the production of high-permeability magnetic steel
03/29/1977US4014710 Iron oxide, magnetic tapes
03/01/1977US4010050 Processing for aluminum nitride inhibited oriented silicon steel
02/1977
02/15/1977US4008105 Zirconium-chromium-cobalt-iron alloy
02/08/1977US4007073 Method of producing articles having alternating magnetic and non-magnetic portions from continuous metal blanks
02/08/1977US4007072 Ferromagnetic metal powder comprising lead and method for making the same
02/08/1977US4007066 Material having a high magnetic permeability
02/08/1977US4007065 Hysteresis alloy
01/1977
01/18/1977US4003840 Ferrite powder and a polymer
01/18/1977US4003769 Method of making non-retentive Al-Ni-Co-Fe alloy
01/18/1977US4003768 Method for treating magnetic alloy to increase the magnetic permeability
01/18/1977US4003767 Procedure for the production of permanent magnetic sinter bodies using a ternary cobalt-lanthanoid compound
01/11/1977US4002508 Composition for permanent magnets of the family "rare earths-transition metals" and process for producing such a magnet
01/11/1977US4002507 Niobium-free semi-hard magnetic glass sealable alloy system of cobalt- (nickel, aluminum, titanium)- iron
01/11/1977US4002506 Semi-hard magnetic glass sealable alloy system of cobalt-nickel-titanium-iron
01/04/1977US4001363 Method of manufacturing a ceramic ferromagnetic object
01/04/1977US4001288 Precipitating ferric and ferrous ions in alkaline solution, complexing with hydroxy-carboxylic acid, solubilizing
12/1976
12/28/1976US4000015 Processing for cube-on-edge oriented silicon steel using hydrogen of controlled dew point
12/21/1976US3999216 Material for magnetic transducer heads
12/21/1976US3998669 Permanent magnet on the basis of cobalt-rare earth alloys and method for its production
12/14/1976US3997371 Permanent magnet
12/07/1976US3996073 Insulative coating for electrical steels
11/1976
11/30/1976US3994716 Process for the production of finely divided cobalt powders
11/09/1976US3990923 Method of producing grain oriented electromagnetic steel sheet
11/02/1976US3989557 Cobalt, niobium, iron alloy, annealing, cold working, stress relieving, cooling, aging
11/02/1976US3989555 Nickel-iron material having high magnetic permeability
11/02/1976US3989352 Bismuth substituted rare earth garnets as magneto-optic materials exhibiting magnetic circular dichroism
10/1976
10/26/1976US3988177 Decarburization and recrystallizing annealing
10/19/1976US3986902 Silicon steel suitable for production of oriented silicon steel using low slab reheat temperature
10/19/1976US3986901 Controlled catalyst for manufacturing magnetic alloy particles having selective coercivity
10/12/1976US3986194 Magnetic semiconductor device
10/12/1976US3985596 Process for producing crystal-oriented permanent magnets
10/12/1976US3985588 Spinning mold method for making permanent magnets
10/12/1976US3985583 Method for forming an insulating coating on an oriented silicon steel sheet
10/05/1976US3983916 Process for producing semi-hard co-nb-fl magnetic materials
09/1976
09/28/1976US3982973 Cube textured nickel
09/28/1976US3982972 Chromium-cobalt-silicon-iron
09/28/1976US3982971 Rare earth-containing permanent magnets
09/21/1976US3981844 Magnetic particles
09/07/1976US3979310 Thermal decomposition of chromium chromate, antimony
09/07/1976US3979233 Magnetic Ni-Cr-Mn-Ge-Fe alloy
08/1976
08/31/1976US3978398 Method for nondestructive magnetic inspection of an object employing a putty-like magnetic recording medium
08/31/1976US3977984 Barium ferrite, iron oxide, magnetism, phenolic resins, polyethylenimine-epichlorohydrin
08/31/1976US3977919 Method of producing doubly oriented cobalt iron alloys
08/31/1976US3977917 Permanent magnet materials
08/31/1976US3977838 Anti-wear ferrous sintered alloy
08/24/1976US3976519 Manganese-aluminum-carbon
08/24/1976US3976518 Process for producing grain-oriented electric steel sheets having remarkably improved magnetic flux density
08/17/1976US3975217 Finely divided magnetic cobalt powder
08/10/1976US3974079 Ferromagnetism, oxidation
08/10/1976US3974001 Paramagnetic alloy
08/03/1976US3972745 Nickel-iron-aluminum-niobium or silicon or chromium alloy
07/1976
07/27/1976US3971678 Method of making cold-rolled sheet for electrical purposes
07/27/1976US3971676 Magnetic material of high strength and toughness
07/20/1976US3970485 Binder and lubricant removal from cobalt-rare earth alloys
07/20/1976US3970484 Sintering methods for cobalt-rare earth alloys
07/13/1976US3969162 Method of producing silicon steel strip
07/06/1976US3967986 Method of preparing ferromagnetic material
07/06/1976US3967368 Method for manufacturing and using an internally biased magnetoresistive magnetic transducer
06/1976
06/29/1976US3966510 Ferromagnetic powder for magnetic recording medium and method for preparation thereof
06/22/1976US3965046 Process of making metal powders and products produced thereby
06/22/1976US3964939 Bodies including passivated metal particles
06/15/1976US3963829 Gadolinium, lanthanum or yttrium
06/08/1976US3961990 Cobalt-nickel alloy, oxidizing with nitrogen dioxide
06/08/1976US3961946 Magnetic alloy for use in thermo and magneto printing
06/01/1976US3960617 Method of producing metal parts having magnetic and non-magnetic portions
06/01/1976US3960616 Rare earth metal treated cold rolled, non-oriented silicon steel and method of making it
05/1976
05/25/1976US3959034 Method of providing an object of silicon steel with a heat-resistant, electrically insulating coating
05/25/1976US3959033 Process for manufacturing silicon-aluminum steel sheet with oriented grains for magnetic applications, and products thus obtained
05/25/1976US3959032 Cobalt-nickel