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| Number | Title | Issue Date |
| 7744702 | Soft magnetic alloy powder, compact, and inductance element A soft magnetic alloy powder containing Fe—Ni-based crystal particles is provided as one capable of adequately reducing core loss of a powder magnetic core and achieving satisfactory magnetic characteristics at an effective operating temperature of an element. The... | 06/29/2010 |
| 7435485 | Magnetic material, and a MEMS device using the magnetic material A magnetic material comprises 50-80 wt % of Cobalt, 9-15 wt% of Nickel, 10-25 wt% of Rhenium, 0.1 to 2.0 wt% of Phosphorus, and 5-10 wt % of Tungsten or Platinum. It can be formed as a layer having good vertical magnetic properties (e.g. when magnetised it can provi... | 10/14/2008 |
| RE40524 | Magnet powder-resin compound particles, method for producing such compound particles and resin-bonded rare earth magnets formed therefrom The magnet powder-resin compound particles substantially composed of rare earth magnet powder and a binder resin are in such a round shape that a ratio of the longitudinal size a to the transverse size b (a/b) is more than 1.00 and 3 or less, and that an average par... | 09/30/2008 |
| 7381239 | Alloy nano-particles Disclosed are alloy nano-particles having a fluctuation coefficient of particle size of 20% or less and a fluctuation coefficient of composition of 20% or less. The alloy nano-particles have a low transformation point and hardly aggregate and which can form a flat m... | 06/03/2008 |
| 7381282 | Co alloy target and its production method, soft magnetic film for perpendicular magnetic recording and perpendicular magnetic recording medium A Co alloy target comprising 1 to 10 atomic % of Zr and 1 to 10 atomic % of Nb and/or Ta, the balance being unavoidable impurities and Co, is produced by rapidly solidifying a melt of the Co alloy to produce an alloy powder, classifying the alloy powder to maximum p... | 06/03/2008 |
| 7336556 | Magnetic non-volatile memory device A non-volatile magnetic memory device is proposed, which provides sufficient magnetic shielding performance for external magnetic fields. A first magnetic shield layer 60a and a second magnetic shield layer 60b, both made of a soft magnet... | 02/26/2008 |
| 7294418 | Magnetic film for magnetic head The magnetic film includes an FeCo layer, restrains erasing data by a magnetic field leaked from a magnetic pole, has high saturation magnetic flux density and soft magnetism and writes data with high recording density. The magnetic film for a magnetic head of the p... | 11/13/2007 |
| 7192491 | Increased damping of magnetization in magnetic materials In order to dampen magnetization changes in magnetic devices, such as magnetic tunnel junctions (MTJ) used in high speed Magnetic Random Access Memory (MRAM), a transition metal selected from the 4d transition metals and 5d transition met... | 03/20/2007 |
| 7141127 | Low core loss magnetic alloy with high saturation magnetic flux density and magnetic parts made of same A low core loss magnetic alloy with a high saturation magnetic flux density, which has a composition represented by the general formula: (Fel-aCoa)100-y-cM′yX′c(atomic %) where M′ repre... | 11/28/2006 |
| 7133582 | Fiber-optic filter with tunable grating A tunable optical fiber has a grating which is attached to an expander responsive to an external control including a temperature or a magnetic field. The expander changes length, and this is coupled to the optical fiber, which changes pitch, thereby accomplishing a ... | 11/07/2006 |
| 7075163 | Electromagnetic noise suppressor, semiconductor device using the same, and method of manufacturing the same In a semiconductor bare chip (57) on the front surface whereof is formed an integrated circuit, a magnetic loss film 55 is formed on the back surface of that semiconductor bare chip. ... | 07/11/2006 |
| 6946097 | High-strength high-temperature creep-resistant iron-cobalt alloys for soft magnetic applications A high strength and creep resistant soft magnetic Fe—Co alloy includes, in weight %, Fe and Co such that the difference between the Fe and Co is at least 2%, at least 35% Co, and 2.5%≦(V+Mo+Nb), wherein 0.4%≦Mo and/or 0.4%≦Nb. This alloy can further include ... | 09/20/2005 |
| 6797137 | Mechanically alloyed precious metal magnetic sputtering targets fabricated using rapidly solidfied alloy powders and elemental Pt metal A cobalt-chromium-boron-platinum sputtering target alloy having multiple phases. The alloy can include Cr, B, Ta, Nb, C, Mo, Ti, V, W, Zr, Zn, Cu, Hf, O, Si or N. The alloy is prepared by mixing Pt powder with a cobalt-chromium-boron master alloy, ball milling the p... | 09/28/2004 |
| 6699579 | Particulates of controlled dimension We make particulates, especially magnetic Fe--Co alloys having high magnetic permeability, of controlled dimensions, especially those having a narrow thickness size distribution centered around a median or target thickness in the range of about 0.1-1.0 μ... | 03/02/2004 |
| 6676772 | Magnetic material The magnetic material for magnetic refrigeration of the present invention is characterized by exhibiting, in a certain temperature region, preferably, only in part of a temperature region from 200 K to 350 K, an inflection point at which a second order di... | 01/13/2004 |
| 6648990 | Co-based magnetic alloy and magnetic members made of the same Disclosed is a Co-base magnetic alloy excellent in high-frequency magnetic properties, of which chemical composition is represented by the following general formula, by atomic %, (Co1-a Fea)100-y-c M'y X'c | 11/18/2003 |
| 6607612 | Magnetic alloy and magnetic recording medium and method for preparation thereof, and target for forming magnetic film and magnetic recording device The magnetic alloy includes cobalt (Co), chromium (Cr), and germanium (Ge), the composition of the magnetic alloy being represented by the general formula: Cox Cry Gez where x, y and z, which represent the composition ratio in ... | 08/19/2003 |
| 6585866 | High purity cobalt sputter target and process of manufacturing the same A high purity cobalt sputter target is disclosed which contains a face centered cubic (fcc) phase and a hexagonal close packed (hcp) phase, wherein the value of the ratio of X-ray diffraction peak intensity, Ifcc (200)/Ihcp (10 1), i... | 07/01/2003 |
| 6556139 | System for authentication of products and a magnetic tag utilized therein A magnetic microwire for use in a magnetic tag attachable to a product is provided to enable authentication of the product, as well as the magnetic tag, a detector device and a system for product authentication utilizing the same. The magnetic microwire i... | 04/29/2003 |
| 6514358 | Stretching of magnetic materials to increase pass-through-flux (PTF) Magnetic materials for use in sputtering targets are hot rolled and stretched at ambient temperature or at a temperature not exceeding 1400° F. The magnetic material can be pure Co, pure Ni, or Co based alloys.... | 02/04/2003 |
| 6423386 | Magnet powder-resin compound particles, method for producing such compound particles and resin-bonded rare earth magnets formed therefrom The magnet powder-resin compound particles substantially composed of rare earth magnet powder and a binder resin are in such a round shape that a ratio of the longitudinal size a to the transverse size b (a/b) is more than 1.00 and 3 or less, and that an ... | 07/23/2002 |
| 6406600 | CoPt-base sputtering target, method of making same, magnetic recording film and Co-Pt-base magnetic recording medium Provided are a CoPt-base sputtering target which can produce a magnetic recording medium having a recording layer with uniform film characteristics and excellent recording and reproducing characteristics, a method of making this sputtering target, a magne... | 06/18/2002 |
| 6398880 | Magnetic data-storage targets and methods for preparation Cobalt-based Ta-containing magnetic target alloy materials are produced in which homogeneity of the magnetic material is improved by eliminating Ta-rich second phases in the microstructure by a process comprising soaking ingots of said alloy from which ta... | 06/04/2002 |
| 6391172 | High purity cobalt sputter target and process of manufacturing the same A high purity cobalt sputter target is disclosed which contains a face centered cubic (fcc) phase and a hexagonal close packed (hcp) phase, wherein the value of the ratio of X-ray diffraction peak intensity, Ifcc (200)/Ihcp (10 11), ... | 05/21/2002 |
| 6376063 | Making particulates of controlled dimensions by electroplating We make particulates, especially magnetic Fe--Co alloys having high magnetic permeability, of controlled dimensions, especially those having a narrow thickness size distribution centered around a median or target thickness in the range of about 0.1-1.0 μ... | 04/23/2002 |
| 6350323 | High permeability metal glassy alloy for high frequencies A high permeability metal glassy alloy for high frequencies contains at least one element of Fe, Co, and Ni as a main component, at least one element of Zr, Nb, Ta, Hf, Mo, Ti, V, Cr, and W, and B. In the metal glassy alloy, the temperature interval ƊTx ... | 02/26/2002 |
| 6342108 | Low core loss, well-bonded soft magnetic stator, rotor, and armature A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150° C and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic powd... | 01/29/2002 |
| 6299703 | Process for fabricating improved iron-cobalt magnetostrictive alloy and article comprising alloy An article comprising an alloy exhibiting high magnetostriction in relatively low applied magnetic fields is provided, the alloy capable of being formed in a relatively easy manner and having desirable physical properties. The Co--Fe alloy of the inventio... | 10/09/2001 |
| 6190516 | High magnetic flux sputter targets with varied magnetic permeability in selected regions A planar ferromagnetic sputter target is provided for use as cathode in the magnetron sputtering of magnetic thin films, wherein the ferromagnetic material has localized regions of differing magnetic permeability. A solid, unitary, planar sputter target i... | 02/20/2001 |
| 6153020 | Process for fabricating improved iron-cobalt magnetostrictive alloy and article comprising alloy An article comprising an alloy exhibiting high magnetostriction in relatively low applied magnetic fields is provided, the alloy capable of being formed in a relatively easy manner and having desirable physical properties. The Co--Fe alloy of the inventio... | 11/28/2000 |
| 6146474 | Iron-cobalt alloy An iron--cobalt alloy the chemical composition of which comprises, by weight: 35%ࣘCoࣘ55%; 0.5%ࣘVࣘ2.5%; 0.02%ࣘTa+2×Nbࣘ0.2%; 0.0007%ࣘBࣘ0.007%; Cࣘ0.05%; the balance being iron and impurities resulting from the smelting operation.... | 11/14/2000 |
| 6124047 | Soft magnetic film and a magnetic head of an MR/inductive composite type using such a soft magnetic film A soft magnetic film comprises a Co--M--T--C alloy wherein a film structure is predominantly made of an amorphous phase and element M and C are chemically combined. The use of this film as a lower core layer in an MR/inductive composite-type thin film mag... | 09/26/2000 |
| 6123783 | Magnetic data-storage targets and methods for preparation A method for making a magnetic data storage target includes warm-rolling a magnetic alloy sheet at a temperature of less than about 1200° F., optimally followed by annealing. The method results in increased pass-through-flux (PTF) and improved performanc... | 09/26/2000 |
| 6103405 | Planar inductance element A planar inductance element is provided which has good high-frequency magnetic properties and which can be manufactured at high yield. The element has at least one ferromagnetic film which, whose high-frequency properties change only a little when thermal... | 08/15/2000 |
| 6093262 | Corrosion resistant solenoid valve A ferromagnetic, high strength, corrosion resistant material for use in electromagnetic equipment. The material comprises Cobalt or Nickel or a combination of these elements in an amount equal to or greater than 60% by weight, with the balance comprising ... | 07/25/2000 |
| 6060181 | Low loss magnetic alloy A more resistive, low loss magnetic alloy containing at least 80% cobalt, at least 10 wt % iron, about 2.5 wt % nickel, and about 0.3-2 wt % impurities including boron and manganese. The alloy is well suited for deposition upon dielectric substrates such ... | 05/09/2000 |
| 5993939 | Method for preparing permanent magnet material, chill roll, permanent magnet material, and permanent magnet material powder A permanent magnet material is prepared by cooling with a chill roll a molten alloy containing R wherein R is at least one rare earth element inclusive of Y, Fe or Fe and Co, and B. The chill roll has a plurality of circumferentially extending grooves in ... | 11/30/1999 |
| 5976715 | Articles comprising magnetically soft thin films The invention is embodied in a soft magnetic thin film article comprising an iron--chromium-nitrogen (Fe--Cr--N) based alloy and methods for making such article. The soft magnetic thin film article is formed using an iron--chromium--nitrogen based alloy w... | 11/02/1999 |
| 5908514 | Magnetic alloy for improved corrosion resistance and magnetic performance A new magnetic alloy exhibits high Hc and Ms while exhibiting excellent corrosion resistance, thereby providing ideal physical properties for high density recording applications. Other parameters of the media, such as SNR, PW50, and S are at least maintai... | 06/01/1999 |
| 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 and composed of an amorphous phase containing at least one ... | 01/12/1999 |
