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| Number | Title | Issue Date |
| 6452385 | Magnetoresistive effect sensor with double-layered film protection layer A manufacturing method of a MR sensor includes forming a MR multi-layered structure of a first anti-ferromagnetic material layer, a first ferromagnetic material layer (pinned layer) which receives bias magnetic field caused by exchange coupling with the f... | 09/17/2002 |
| 6449167 | Method and apparatus for building and testing electronic circuits A method and system with a magnetically attractive breadboard and associated devices for constructing and testing electronic circuits. The breadboard can comprise a single or multi-layer circuit board with metallic foil conductors that can be connected to... | 09/10/2002 |
| 6447935 | Method and system for reducing assymetry in a spin valve having a synthetic pinned layer A method and system for providing a spin valve for use in a magnetoresistive head is disclosed. The method and system include providing a synthetic pinned layer, a nonmagnetic spacer layer, and a free layer. The free layer has a first magnetization canted... | 09/10/2002 |
| 6447936 | Magnetic recording medium and magnetic recording apparatus using the same Magnetic recording medium includes at least two layers having different magnetic anisotropy constants formed on a substrate and the perpendicular magnetic anisotropy of the second magnetic film of those magnetic films, far from the substrate surface, made... | 09/10/2002 |
| 6440545 | Powder for use in lower layer of coating type magnetic recording medium A powder for use in the lower layer of a coating magnetic recording medium, comprising acicular particles with a mean major axis length in a range of from 0.01 to 0.5 μm and a mean minor axis length in a range of from 0.01 to 0.05 μm, provided that the ... | 08/27/2002 |
| 6440589 | Magnetic media with ferromagnetic overlay materials for improved thermal stability A magnetic recording disk has a magnetic recording layer that includes a ferromagnetic host layer and a ferromagnetic overlay deposited directly on the host layer with an effective overlay thickness in the range of 1-40 Angstroms. The ferromagnetic materi... | 08/27/2002 |
| 6441611 | Magnetic sensor having a GMR layer A magnetic sensor utilizing a giant magnetoresistance (GMR) effect, wherein an insulation layer with a contact hole is formed on a lower terminal layer, a GMR layer is formed thereover on the region including the entire contact hole and at least the surro... | 08/27/2002 |
| 6440520 | Patterned magnetic recording disk with substrate patterned by ion implantation A method for making a patterned magnetic recording disk uses patterned ion implantation of the disk substrate. Energetic ions, such as He, N or Ar ions, are directed to the disk substrate through a mask, preferably a non-contact mask. They are implanted i... | 08/27/2002 |
| 6440522 | Method and device for producing a security element and a corresponding security element A method of producing a security element for electronically securing an object, a device for producing the security element and the security element itself form aspects of the present invention. The security element includes a strip element embedded in sh... | 08/27/2002 |
| 6436522 | Process for the preparation of a magnetic dispersion for magnetic recording media and magnetic recording media produced therewith A process for the preparation of high-quality magnetic dispersions having an Hc>120 kA/m, a residual induction Mr/Mmࣙ0.9 and an orientation ratio of about 2.7 achieves, with a self-purging single-shaft blade-type kneading apparatus, very advantageous ma... | 08/20/2002 |
| 6436524 | Magneto-optical recording medium When recording using magnetic field modulation recording, the magneto-optical recording medium which is disclosed is capable of satisfactory recording with a low magnetic field. This recording medium is a layered superposition of a recording layer 13 and ... | 08/20/2002 |
| 6436560 | Magnetic head and magnetic disk device using the same A magnetic head comprises: an induction type head for recording including a lower magnetic core, a writing gap film formed on the lower magnetic core, an upper magnetic core having a track portion and a portion spreading from the track portion, a pluralit... | 08/20/2002 |
| 6436526 | Magneto-resistance effect element, magneto-resistance effect memory cell, MRAM and method for performing information write to or read from the magneto-resistance effect memory cell A magneto-resistive effect element includes a first ferromagnetic film; a second ferromagnetic film; and a first nonmagnetic film interposed between the first ferromagnetic film and the second ferromagnetic film. The first ferromagnetic film has a magneti... | 08/20/2002 |
| 6436520 | Magnetic display device A magnetic display sheet of the present invention comprises: a magnet sheet having a magnetized surface, and a non-magnetized surface, which magnet sheet comprises: 400 to 1,900 parts by weight of at least one kind of magnetic particles selected from the group... | 08/20/2002 |
| 6432562 | Magnetic recording medium with a nialru seedlayer High areal density magnetic recording media exhibiting high magnetic performance, e.g., narrow PW50, and high OW, and high SNR, are formed with a NiAlRu seedlayer. Embodiments of the present invention include sputter depositing a NiAlRu seedlayer on a non... | 08/13/2002 |
| 6432520 | Magnetic modifiable sign A lightweight, magnetic sign assembly containing a magnetic sign. The magnetic sign contains a flexible substrate. Magnetic ink is bonded to either the top or bottom surface of the substrate, and ink is deposited over the top surface of the flexible subst... | 08/13/2002 |
| 6432503 | Magnetic recording medium A magnetic recording medium is described, which comprises a support having thereon a magnetic layer comprising a ferromagnetic metal powder dispersed in a binder, which is a magnetic recording medium for recording signals of from 0.17 to 2 G bit/inch... | 08/13/2002 |
| 6432563 | Zinc enhanced hard disk media The present invention provides a magnetic recording media incorporating Zn containing layers in close proximity to a magnetic layer to provide media having increased coercivity and lower noise. The Zn containing layer can be incorporated in a rotating, tr... | 08/13/2002 |
| 6428869 | Peel and strip magnets and method of manufacture thereof A sheet or strip of discreet magnets disposed on a common backing and a method of manufacturing a plurality of discreet magnets detachably adhered to a common backing is provided. The method includes the passing of a magnetic substrate that is detachably ... | 08/06/2002 |
| 6426156 | Magnetostatic wave device A magnetic garnet single crystal film used for a magnetostatic wave device has a Pb content in the range of from more than zero to about 4,000 ppm by weight.... | 07/30/2002 |
| 6426157 | Perpendicular magnetic recording medium The present invention provides a perpendicular magnetic recording medium 11 having a perpendicular magnetization film 22 formed on a substrate 20, wherein a high perpendicular orientation film 24 having higher perpendicular orientation than that of the pe... | 07/30/2002 |
| 6423431 | Magnetic recording media having improved magnetic and parametric performance with chromium alloy underlayer having added aluminum In a magnetic recording medium such as a magnetic disk which has a multilayer structure including a supporting substrate, at least one underlayer supported by the substrate, and a magnetic layer overlying the underlayer, magnetic and parametric performanc... | 07/23/2002 |
| 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 |
| 6423369 | Process for sealing pores in molded product, and bonded magnet with pores sealed by the process A molded product having pores in its surface, an inorganic powder, a fat and oil and media are placed into a treating vessel, and a kinetic energy is supplied to the contents of the treating vessel, thereby forcing the inorganic powder into the pores and ... | 07/23/2002 |
| 6420058 | Magnetic recording medium The invention aims to prevent inadvertent rewriting or erasure of servo information in a patterned medium based on the perpendicular recording mode. The magnetic recording medium of the invention includes recording tracks each having an array of unit minu... | 07/16/2002 |
| 6416881 | Media with a metal oxide sealing layer Sputter-deposited amorphous metal oxide films on substrates comprising an aluminum-containing support and a Ni-containing pre-coat reduce Ni ion migration significantly from the substrate onto the top surface of the magnetic recording media. Longitudinal ... | 07/09/2002 |
| 6416830 | Composite magnetic tube and method of producing the same, and electromagnetic interference suppressing tube A tube for externally covering or bundling electric cables is provided for suppressing radiation of undesired electromagnetic waves. The tube is made of a material in which soft magnetic powder is mixed with and dispersed into an organic binding agent. Fo... | 07/09/2002 |
| 6416864 | Black magnetic composite particles for a black magnetic toner Black magnetic toner comprising: a binder resin, and black magnetic composite particles comprising: magnetic iron oxide particles having an average particle diameter of 0.055 to 0.95 μm; a coating layer formed on the surface of said magnetic iron oxide partic... | 07/09/2002 |
| 6416879 | Fe-based amorphous alloy thin strip and core produced using the same The object of the present invention is to provide an Fe-based amorphous alloy thin strip capable of realizing an excellent soft magnetic property for use in alternating current applications while keeping a high magnetic flux density even in a composition ... | 07/09/2002 |
| 6415534 | Fluid decorative structure Fluid decorative structure including an enclosing body and a scat body. The enclosing body is made of a very soft transparent or semitransparent material and formed with an opening at bottom end. Fluids with different colors and specific weights are fille... | 07/09/2002 |
| 6416839 | Magnetic recording medium with laser-formed differential zone lubrication Stiction failure of a magnetic recording medium is reduced by forming a lubricant topcoat having a first thickness over the landing zone greater than a second thickness over the data zone, with a sharp transition step having an angle of at least about 70Â... | 07/09/2002 |
| 6413608 | Seed layer and underlayer with high and low oxygen concentration portions for hand disk magnetic recording medium on a glass substrate The thin film magnetic disk of the present invention includes a non-metallic substrate having a seed layer deposited on the substrate, an underlayer deposited upon the seed layer composed of a chromium alloy having a relatively high oxygen concentration p... | 07/02/2002 |
| 6410133 | Magnetic recording disk, method of the magnetic recording disk and magnetic recording apparatus A magnetic recording medium includes a non-magnetic substrate, an inorganic compound layer that is formed on the substrate and which contains a crystalline first oxide and a second oxide, and a magnetic layer that is formed on the inorganic compound layer... | 06/25/2002 |
| 6410170 | High resistivity FeXN sputtered films for magnetic storage devices and method of fabrication A preferred method of the present invention provides an improved thin film for carrying magnetic flux. With the preferred method, the magnetic thin film may be formed by depositing Fe by reactive sputtering using N2 to form a thin film comprisi... | 06/25/2002 |
| 6403242 | Magnetic recording medium and magnetic recording system using such a magnetic recording medium The present invention provides a magnetic recording medium having a magnetic layer deposited on a substrate through a single-layer underlayer or a multilayer-underlayer, the magnetic layer includes magnetic crystal grains having an acicular structure or a... | 06/11/2002 |
| 6403194 | Magnetic recording medium, process for producing same and magnetic disc apparatus An object of the present invention is to provide a magnetic recording medium which has a sufficient impact resistance to withstand its accidental collision with a magnetic head and is neither worn away nor fractured in the CSS area by contact or friction ... | 06/11/2002 |
| 6403203 | Magnetic recording medium and magnetic recording apparatus using the same Magnetic recording medium includes at least two layers having different magnetic anisotropy constants formed on a substrate and the perpendicular magnetic anisotropy of the second magnetic film of those magnetic films, far from the substrate surface, made... | 06/11/2002 |
| 6399174 | Magnetooptical recording medium on which high-density information can be recorded and method of reproducing the recorded information A magnetooptical recording medium includes a first magnetic layer, a second magnetic layer whose Curie temperature is lower than that of the first magnetic layer, and a third magnetic layer, comprising a vertically-magnetizing film, whose Curie temperatur... | 06/04/2002 |
| 6395388 | Magnetoresistance effect element The present invention provides an exchange coupling film having a stacked-film-structure consisting of a ferromagnetic film made of at least one material of Fe, Co and Ni, and an antiferromagnetic film, wherein the exchange coupling film made of a ferroma... | 05/28/2002 |
| 6395400 | Magnetic recording medium A magnetic recording medium using a biaxially oriented aromatic polyamide film as a nonmagnetic support resulting in hardly any improper windings or edge damages. The magnetic recording medium includes a magnetic layer containing ferromagnetic powders dis... | 05/28/2002 |
