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5891270 |
Heat-treatment of glassy metal alloy for article surveillance system markers
A mechanically resonant marker comprises a strip of magnetic glassy metal alloy that has been annealed in a furnace for a predetermined time at a plurality of temperatures. A first of the...
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5876519 |
Fe-based amorphous alloy
An Fe-based amorphous alloy having a compositional formula in atomic percent represented by Fe 100 -a-b-c-d-e-f Al a Ga b P c C d B e Si f , wherein a to f satisfy 4≤a≤6, 1≤b≤3,...
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5873954 |
Amorphous alloy with increased operating induction
A ferromagnetic amorphous metallic alloy strip is annealed to minimize exciting power rather than core loss. The strip has an exciting power less than 0.5 VA/kg when measured at 60 Hz and an...
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5871593 |
Amorphous Fe-B-Si-C alloys having soft magnetic characteristics useful in low frequency applications
A rapidly solidified amorphous metallic alloy is composed of iron, boron, silicon and carbon. The alloy exhibits in combination high saturation induction, high Curie temperature, high...
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5861220 |
Method and apparatus for providing a magnetic storage and reproducing media with a keeper layer having a longitudinal anisotropy
A magnetic storage medium comprises a keeper layer of soft magnetic, saturable material disposed upon a magnetic storage layer. The keeper layer is disposed above the magnetic storage layer, and a...
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5858125 |
Magnetoresistive materials
A magnetoresistive material of the present invention has a structure in which many clusters are surrounded by a crystal phase of Cu and/or Ag, where each cluster has a grain size of 20 nm or less...
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5833769 |
Wide iron-based amorphous alloy thin strip, and method of making the same
A wide amorphous alloy thin strip having a width of 70 mm or above and useful as an iron core of electric power transformers, composed of Fe--Si--B--C amorphous alloy. Dispersion of an amorphous...
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5830587 |
Magnetic devices with enhanced poles
A process resulting in enhanced pole performance, relative to permalloy poles, in narrow track magnetic devices. A preferred process includes increasing the anisotropy field of the pole material...
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5804282 |
Magnetic core
A magnetic core is obtained by winding or laminating at least one alloy ribbon and has excellent squareness characteristic and magnetic saturation characteristic in a high frequency region wherein...
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5800635 |
Method of achieving a controlled step change in the magnetization loop of amorphous alloys
A magnetic theft detection system includes a glassy metal alloy strip having a value of magnetostriction near zero. The strip has been annealed to produce a step change in the magnetization versus...
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5801630 |
Article surveillance magnetic marker having an hysteresis loop with large barkhausen discontinuities at a low field threshold level
A harmonic-type EAS marker includes a wire segment formed of cobalt alloy. To form the wire segment, the cobalt alloy is cast as an amorphous wire, die-drawn to a smaller diameter, and then...
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5786103 |
Soft magnetic film and magnetic head employing same
A soft magnetic film having a high saturation magnetic flux density and superior soft magnetic properties and capable of maintaining superior soft magnetic properties when worked to a magnetic...
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5786762 |
Magnetostrictive element for use in a magnetomechanical surveillance system
A magnetostrictive element for use in a magnetomechanical article surveillance marker formed by first annealing an amorphous metal alloy, such alloy comprising iron and cobalt with the proportion...
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5780177 |
Magnetic thin film and thin film magenetic element using the same
A magnetic thin film is disclosed which has a composition represented substantially by the following chemical formula and, the same time, has the whole or part of the thin film formed of an...
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5757272 |
Elongated member serving as a pulse generator in an electromagnetic anti-theft or article identification system and method for manufacturing same and method for producing a pronounced pulse in the system
For security against theft or for identification of products using an electronic alternating field in an interrogation zone, a pulse generator, upon magnetic reversal due to a Barkhausen jump,...
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5750273 |
Soft magnetic thin film and thin film magnetic element using the same
A thin film magnetic element is disclosed which uses a soft magnetic thin film having a composition represented by the general formula: T 100 -x-y M x (AO v ) y (wherein T stands for at least...
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5738733 |
Ferrous metal glassy alloy
The present invention provides a ferrous metal glassy alloy having temperature interval ΔTx of supercooled liquid as expressed by the following formula: ΔTx=Tx-Tg (where, Tx is an onset...
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5728237 |
Magneto-elastically excitable tag having a reliably deactivatable amorphous alloy for use in a mechanical resonance monitoring system
Amorphous alloys having the formula Fe a Co b Ni c Si x B y M z are employed as monitoring strips for mechanically oscillating tags, for example for anti-theft protection, together with a...
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5725684 |
Amorphous hard magnetic alloy, amorphous hard magnetic cast alloy, and method for producing the same
It is an object of the present invention to provide an amorphous hard magnetic alloy which can be produced by a casting method having a low cooling rate and has a large thickness not achieved by...
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5658397 |
Iron-based amorphous alloy thin strip and transformers made therefrom
An iron-based amorphous alloy thin strip for wound transformers has a composition expressed by a chemical formula: Fe a B b Si c Mn d where about 78≤a≤ about 82 at %, about 8≤b≤ about...
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5647921 |
Process for producing and amorphous alloy resin
A process for producing an amorphous alloy ribbon by the single roll method is disclosed, which comprises injecting through a slot disposed at a nozzle tip a molten alloy having the composition...
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5626690 |
Low boron amorphous alloy having excellent soft magnetic characteristics
A low boron amorphous alloy having excellent soft magnetic characteristics, composed of B: about 6-10 at %, Si: about 10-17 at %, P: about 0.02-2 at % and the balance Fe and incidental impurities....
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5593518 |
Amorphous Fe-B-Si-C alloys having soft magnetic characteristics useful in low frequency applications
A rapidly solidified amorphous metallic alloy is composed of iron, boron, silicon and carbon. The alloy exhibits in combination high saturation induction, high Curie temperature, high...
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5591276 |
Magnetic alloy with ultrafine crystal grains and method of producing same
There is provided according to the present invention a magnetic alloy with ultrafine crystal grains having a composition represented by the general formula: Fe 100 -x-y M x B y (atomic %)...
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5576098 |
Thin film magnetic head
A thin film magnetic head includes an upper magnetic core film and a lower magnetic core film laminated one on another through a magnetic gap layer. The upper and lower magnetic core films are...
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5554232 |
Amorphous metal wire
An amorphous metal wire having the following composition by atomic %: (Fe a Co b ) 100 -(y+z) Si y B z where 0.4≤a≤0.6, a+b=1, 6≤y≤8, and 13≤z≤16. The wire shows a Large Barkhausen...
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5522946 |
Amorphous magnetic thin film and plane magnetic element using same
An amorphous magnetic thin film possesses as at least part of a thin film forming area a microstructure composed of a first amorphous phase containing at least either of iron and cobalt and bearing...
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5522947 |
Amorphous iron based alloy and method of manufacture
Disclosed are an amorphous iron based alloy having excellent magnetic characteristics as well as bendability and a method of manufacturing the amorphous iron based alloy. The amorphous iron based...
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5496418 |
Amorphous Fe-B-Si alloys exhibiting enhanced AC magnetic properties and handleability
This invention is directed to metallic alloy consisting essentially of iron, boron and silicon and having a composition in the region A, B, C, D, E, F, A of FIG. 1, said alloy having a...
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5456770 |
Amorphous magnetic alloy with high magnetic flux density
An amorphous magnetic alloy of a composition represented by Fe a Si b B c Sn x , where 60<a≤90, 1≤b≤19, 6≤c≤20, 0.01≤x<10 (atomic %) and a+b+c+x=100.
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5449418 |
Method of formation of magnetostrictive layer and strain sensor using same
A strain sensor for detecting strain in automobiles, robots, and the like includes a magnetostrictive layer. The magnetostrictive layer is formed by irradiating an alloy layer with a high energy...
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5435137 |
Ternary Dy-Er-Al magnetic refrigerants
A ternary magnetic refrigerant material comprising (Dy 1 -x Er x )Al 2 for a magnetic refrigerator using the Joule-Brayton thermodynamic cycle spanning a temperature range from about 60K to about...
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5433797 |
Nanocrystalline metals
A process for producing nanocrystalline materials, and in particular nanocrystalline nickel having an average grain size of less than about 11 nanometers and ternary and quaternary nickel-iron...
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5429725 |
Amorphous metal/metallic glass electrodes for electrochemical processes
Metallic glass/amorphous metal electrodes produced by rapid solidification (i) having a structure that is either amorphous or nanocrystalline, (ii) containing the principal alloying element as Ni,...
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5421915 |
Method for preparing same and magnetic head
A soft magnetic thin micro-crystalline film of FeT b N c (at %) wherein T is at least one of Zr, Hf, Ti, Nb, Ta, V, Mo and W, and 0<b≤20 and 0<c≤22 except the range of b≤7.5 and...
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5372657 |
Amorphous material for regenerator
Disclosed herein is an amorphous material in the form of foil for the regenerator, which is prepared by quenching a melt of a rare earth alloy by injection toward the surface of a roll running at a...
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5364477 |
Iron rich metallic glasses having high saturation induction and superior soft ferromagnetic properties at high magnetization rates
A magnetic metallic glass alloy exhibits, in combination, high saturation induction and low magnetic anisotropy energy. The alloy has a composition described by the formula Fe a Co b B c Si d C...
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5358576 |
Amorphous materials with improved properties
In amorphous materials including at least one iron-transition metal of Fe, Co, and Ni, and at least one metalloid of B, C, Si, and P, excellent magnetic characteristics can be provided subject to...
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5338376 |
Iron-nickel based high permeability amorphous alloy
This invention relates to a Fe-Ni based high permeability amorphous alloy consisting of, in atom percent Ni 30-45%, Cr 0.5-1.2%, Si 5-14%, B 5-15%, P 1.0-3.0%, the balance Fe and inevitable...
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5338373 |
Method of encoding and decoding a glassy alloy strip to be used as an identification marker
A process for making a large number of magneto-mechanically resonant markers having distinct resonant characteristics is disclosed. The process comprises modifying at least one surface of a glassy...
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5284528 |
Metallic glasses having a combination of high permeability, low coercivity, low ac core loss, low exciting power and high thermal stability
Metallic glasses having high permeability, low coercivity, low ac core loss, low exciting power, and high thermal stability are disclosed. The metallic glasses are substantially completely glassy...
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5256211 |
Rapid annealing method using shorted secondary technique
The present invention is directed to a process for rapidly field annealing ferromagnetic cores and the cores produced thereby. A current is applied across a magnetizing source associated with a...
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5254182 |
Thin film of amorphous alloy
A thin film of an amorphous alloy comprising (i) at least one element selected from Fe and Co, (ii) at least one element selected from Pt and Pd and (iii) at least one element selected from (a) 3d...
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5225005 |
Method of annealing/magnetic annealing of amorphous metal in a fluidized bed and apparatus therefor
A method of heat treating an amorphous metal alloy by immersing the alloy in a fluidized bed to heat the alloy to a temperature below its recrystallization temperature. The alloy is maintained in...
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5215710 |
Intermetallic compounds
Intermetallic compounds and hydrides thereof, characterized in that they have been prepared by reacting hydrides of the elements of the main groups I, II, III and IV of the Periodic Table,...
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5204526 |
Magnetic marker and reading and identifying apparatus therefor
A magnetic marker has a plurality of thin strips or wires of saturatable magnetic material having square φ-H characteristics and coercive forces different from each other. Amorphous magnetic...
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5200002 |
Amorphous low-retentivity alloy
An amorphous, low-retentivity alloy contains cobalt, manganese, silicon and boron. The alloy has the composition (Co a Ni b T c Mn d Fe e ) 100 -t (Si x B y M z ) t , whereby T is at least...
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5198040 |
Very thin soft magnetic Fe-based alloy strip and magnetic core and electromagnetic apparatus made therefrom
In the production by the single-roll technique of a thin amorphous strip as the matrix for the manufacture of a thin Co-based amorphous alloy strip or a thin Fe-based microcrystalline alloy strip,...
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5151137 |
Soft magnetic alloy with ultrafine crystal grains and method of producing same
A magnetic alloy with ultrafine crystal grains having a composition represented by the general formula: Co 100 -x -y-z-a-b Fe a M x B y X z T b (atomic %) wherein M represents at least one...
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5133814 |
Soft magnetic thin film
A novel soft magnetic amorphous alloy thin film which, on account of the composition of the film consisting in a combination of a transition metal, a metalloid or semiconducting element, namely B,...
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