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| Number | Title | Issue Date |
| 8039045 | Method of manufacturing a disk substrate for a magnetic recording medium An object of the present invention is to provide a plating method on a glass base plate. The method allows forming a plating film on a base plate composed of a glass material with excellent adhesivity and homogeneity by means of an electroless plating method even to... | 10/18/2011 |
| 8034404 | Method for producing white powder comprising titanium oxide film and metallic silver film A method for producing a white powder, which includes forming on a surface of a base particle a titanium oxide film and a metallic silver film contiguously one upon another in this order, wherein the base particle includes a magnetic material, and wherein said step ... | 10/11/2011 |
| 7776388 | Fabricating magnetic recording media on patterned seed layers Patterned media and associated methods of fabrication are provided in which vertical magnetic grains are grown on a patterned seed layer. The patterned seed layer includes a matrix of islands of a first seed material. Each island of first seed material is separated ... | 08/17/2010 |
| 7754278 | Magnetic polymer microbeads and method for preparing the same Magnetic polymer microbeads and a method for preparing the same are provided. The method for preparing the magnetic polymer microbeads includes the following steps: preparing polymer particles; immersing the polymer particles into a solution in order to swell the po... | 07/13/2010 |
| 7749559 | Method for manufacturing a surface-treated silicon substrate for magnetic recording medium Provided is a textured silicon substrate for a magnetic disk, comprising a magnetic film in which magnetic anisotropy can be attained and high recording density can be achieved, while ensuring the flying stability of a head by controlling the surface roughness of th... | 07/06/2010 |
| 7435488 | Fine structural body and method of producing the same Described is a structural body including at least partially an aluminum member having on a surface an anodized film with micropores present, in which: the micropores have a coefficient of variation in pore size of 5 to 50%; and the micropores are each sealed with a ... | 10/14/2008 |
| 7409759 | Method for making a computer hard drive platen using a nano-plate Provided is a method and system for manufacturing a hard drive platen. The method includes depositing two or more types of film around a central core to form a plurality of film layers, each film layer being of a different type than its adjacent layers. Next, the de... | 08/12/2008 |
| 7386930 | Method for manufacturing a magnetostrictive torque sensor For forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft associated with a magnetostrictive torque sensor, a magnetostrictive coat forming method comprises a step of fitting a cylindrical masking jig over the outer peripheral... | 06/17/2008 |
| 7370410 | Method of manufacturing a device, device, non-contact type card medium, and electronic equipment Wirings 2B1 are formed by application of heat treatment after an ink jet system is used to discharge a conductive liquid L onto a provisional substrate 5 having a predetermined repellent property, bonding an insulating layer 4B1 to... | 05/13/2008 |
| 7372090 | Magnetic random access memory device and method of forming the same Example embodiments of the present invention disclose a semiconductor memory device and a method of forming a memory device. A semiconductor memory device may include a digit line disposed on a substrate, an intermediate insulating layer covering the digit line, a m... | 05/13/2008 |
| 7361419 | Substrate for a perpendicular magnetic recording medium, perpendicular magnetic recording medium, and manufacturing methods thereof A substrate for a perpendicular magnetic recording medium has a soft magnetic underlayer that functions as a soft magnetic backing layer of a perpendicular magnetic recording medium. The substrate for a perpendicular magnetic recording medium has a nonmagnetic base ... | 04/22/2008 |
| 7352542 | Enhanced spin-valve sensor with engineered overlayer formed on a free layer A GMR sensor is disclosed for sensing magnetically recorded information on a data storage medium. The sensor includes a ferromagnetic free layer and a ferromagnetic pinned layer sandwiching an electrically conductive spacer layer. An engineered overlayer is formed o... | 04/01/2008 |
| 7351445 | Magnetic recording media and method of forming them The present invention is directed to carrying out a high density magnetic recording to a material having a large coercive force by perpendicular magnetic recording head. By giving a patterning onto a soft magnetic under layer of a perpendicular two-layer reco... | 04/01/2008 |
| 7333402 | Magneto-optical head support structures A suspension supporting a magnetic head is formed by a member different in material from gimbals. As a result, the characteristic of the gimbals minimizing electric power loss in supplying current while sufficiently elastically holding the magnetic head can be compa... | 02/19/2008 |
| 7310870 | Method for forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft of magnetostrictive torque sensor For forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft associated with a magnetostrictive torque sensor, a magnetostrictive-coat forming method comprises a step of fitting a cylindrical masking jig over the outer peripheral... | 12/25/2007 |
| 7299535 | Methods for making data storage media and the resultant media Methods for forming data storage media and the media formed thereby are disclosed herein. In one embodiment, the method for forming a data storage media, comprises: injection molding a substrate comprising surface features, wherein said surface features have greater... | 11/27/2007 |
| 7297363 | Method for producing magnetic recording medium In the method for producing a magnetic recording medium having a nonmagnetic substrate coated with a magnetic coating material containing a ferromagnetic powder and a binder, the magnetic coating material contains a liquid A constituted by the ferromagnetic powder a... | 11/20/2007 |
| 7270714 | Surface treating apparatus A surface treating process according to the present invention, a vapor deposited film is formed from an easily oxidizable vapor-depositing material on the surface of a work by evaporating the vapor-depositing material in a state in which the vapor deposition control... | 09/18/2007 |
| 7267841 | Method for manufacturing single-sided sputtered magnetic recording disks An information-storage media is provided that includes: (a) a substrate disk 312 having first and second opposing surfaces; (b) a first interface layer 304 on the first surface, the first interface la... | 09/11/2007 |
| 7267722 | Coating apparatus for a traveling web A coating apparatus for a traveling web comprising two coating heads and a traveling path changing roller is disclosed. A bar coater is arranged close to a pass roller. The bar coater is fixed at such a position as to contact the web when the pass roller is moved do... | 09/11/2007 |
| 7250114 | Methods of finishing quartz glass surfaces and components made by the methods Methods of surface finishing a component useful for a plasma processing apparatus are provided. The component includes at least one plasma-exposed quartz glass surface. The method includes mechanically polishing, chemically etching and cleaning the plasma-exposed su... | 07/31/2007 |
| 7241501 | Iron nitride magnetic powder and method of producing the powder An iron nitride magnetic powder comprised primarily of Fe16N2 phase is characterized in that its coercive force Hc is 200 KA/m or greater and bulk switching field distribution BSDF is 2 or less. The magnetic powder can be produced by allowing a... | 07/10/2007 |
| 7238384 | Substrate for perpendicular magnetic recording hard disk medium and method for producing the same Proposed are a substrate that comprises an easily producible soft magnetic backing film and can reduce spike noise from the soft magnetic backing film, and a method for producing the substrate. More specifically, provided are a substrate for a perpendicular magnetic... | 07/03/2007 |
| 7228619 | Method of manufacturing a magnetic head with common seed layer for coil and pedestal A method for fabricating a coil and pedestal for a write head using a common seed layer is described. A nonmetallic gap layer is deposited on a planarized pole piece surface. Openings for the pole piece pedestal and the back gap pole piece are etched through the non... | 06/12/2007 |
| 7227717 | Asymmetric disk surface properties in one head disk drives A disk drive for storing data includes a drive housing and an asymmetrical storage disk. The storage disk includes a body region, a first side region, and an opposed second side region. The side regions are asymmetrical relative to the body region. Various structure... | 06/05/2007 |
| 7225528 | Method for manufacturing magnetic recording medium A method for manufacturing a magnetic recording medium that has a sufficiently flat surface and includes a recording layer having a concavo-convex pattern that provides favorable accuracy of recording and reproduction. The manufacturing method includes the steps of:... | 06/05/2007 |
| 7219422 | Fabrication method of semiconductor integrated circuit device The fabrication of a semiconductor integrated circuit device involves testing using a pushing mechanism that is constructed by forming, over the upper surface of a thin film probe, a reinforcing material having a linear expansion coefficient (thermal expansion coeff... | 05/22/2007 |
| 7220446 | Management technique of friction coefficient based on surface roughness, substrate for information recording medium, information recording medium and manufacture method thereof There are disclosed an information recording medium substrate having a surface roughness of Rmax 15 nm or less, and an information recording medium, particularly an information recording medium substrate and information recording medium in which for surfaces of the ... | 05/22/2007 |
| 7220447 | Magnetic recording medium, process for producing the same, and magnetic recording and reproducing apparatus A process for producing a magnetic recording medium, which process comprises a texturing step for forming texture grooves having a line density of 7,500 lines/mm or more on the surface of a non-metallic substrate, and a step for forming an orientation-determining fi... | 05/22/2007 |
| 7189438 | Magnetic recording medium, method of producing magnetic recording medium and magnetic storage apparatus A magnetic recording medium has a recording layer, disposed above a surface of a substrate and made of hard magnetic nano-particles. The hard magnetic nano-particles are made of an alloy having as a main component an element selected from a group consisting of FePt,... | 03/13/2007 |
| 7189583 | Method for production of MRAM elements Magneto-resistive random access memory elements include a ferromagnetic layer having uniaxial anisotropy provided by elongate structures formed in the ferromagnetic film. The magnetic dipole aligns with the long axis of each structure. The structures can be formed i... | 03/13/2007 |
| 7185415 | Method for forming a magnetic head having a flux shaping layer A method for fabricating a magnetic head includes forming a first pole and a flux shaping layer in spaced relation to the first pole. A nonmagnetic layer is formed adjacent the flux shaping layer and positioned on an air bearing surface (ABS) side of the flux shapin... | 03/06/2007 |
| 7183120 | Etch-stop material for improved manufacture of magnetic devices A method for fabricating a magnetoresistive device having at least one active region, which may be formed into a magnetic memory bit, sensor element and/or other device, is provided. In forming the magnetoresistive device, a magnetoresistive stack, such as a giant m... | 02/27/2007 |
| 7183012 | Structure having pores, magnetic recording medium, and method of manufacturing same The invention provides a magnetic recording medium and a method of manufacturing the magnetic recording medium, in which a high density and good storage stability can be achieved by giving anisotropy in shape to a magnetic substance. A plan shape of the magnetic sub... | 02/27/2007 |
| 7179551 | Poly(arylene ether) data storage media A storage media comprises: a substrate comprising a plastic resin portion, wherein to plastic resin portion comprises poly(arylene ether) and a styrene material selected from the group consisting of polystyrene, styrenic copolymer(s), and reaction products and combi... | 02/20/2007 |
| 7172786 | Methods for improving positioning performance of electron beam lithography on magnetic wafers The present invention discloses a method for the production of sub-micron structures on magnetic materials using electron beam lithography. A subtractive process is disclosed wherein a portion of a magnetic material layer is removed from the substrate using conventi... | 02/06/2007 |
| 7166318 | Production method and production apparatus for magnetic recording medium A production method and a production apparatus for a magnetic recording medium, which enable the efficient production of a discrete type magnetic recording medium, while reliably preventing any deterioration of the partitioned recording elements. The magnetic record... | 01/23/2007 |
| 7160572 | Spin tunnel magnetoresistive effect film and element, magnetoresistive sensor using same, magnetic apparatus, and method for manufacturing same In a spin tunnel magnetoresistive effect film in which a magnetic thin film to which an exchange bias is applied by exchange coupling via an anti-ferromagnetic thin film and a magnetic thin film that detects a magnetic field are laminated, a magnetic thin film or an... | 01/09/2007 |
| 7150895 | Method of producing a magnetic recording medium and a magnetic recording medium formed thereby A perpendicular magnetic recording medium has a magnetic recording layer with ferromagnetic crystalline grains and nonmagnetic and nonmetallic grain boundary region surrounding the grains. The surface of its underlayer, before forming the magnetic recording layer, i... | 12/19/2006 |
| 7147944 | Substrate for magnetic recording media using dried thermoplastic norbornene resin and magnetic recording media using substrate The gas components in thermoplastic norbornene resin pellets are suppressed below certain levels by drying the resin under vacuum or under the ordinary pressure and under vacuum. A substrate for magnetic recording media is manufactured by injection-molding the resin... | 12/12/2006 |
