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Match Document Document Title
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...
7406605 Information recording medium, manufacturing method of its recording medium, information process unit and copyright management system  
Medium individual information formed an information recording medium is obtained, and a management key used for recording or regeneration on the information recording medium corresponding to the...
7403355 Information recording medium, recording/reproducing apparatus, and stamper  
On an information recording medium, a data track pattern and a servo pattern composed of a concave/convex pattern including a plurality of convex parts are formed on at least one surface of a...
7403353 Magnetic recording and reproducing system with recording layer having predetermined convex-concave pattern  
The invention is directed to a magnetic recording/reproducing system wherein each burst pattern in discrete media is configured in a substantially trapezoidal shape (truncated quadrangular pyramid...
7397624 Transducers for ferroelectric storage medium  
A ferroelectric transducer for use with a ferroelectric storage medium includes a read electrode. The read electrode emits a current when a polarity orientation of the read electrode is opposite a...
7394622 Magnetic recording media with discrete tracks of magnetic material in a magnetically soft underlayer  
A magnetic recording medium comprises a magnetically soft underlayer having a plurality of cavities in a surface thereof, and a magnetic recording material in the cavities, wherein a surface of the...
7391592 Magnetic recording medium including a diamond-like carbon protective film and at least two additional elements  
A magnetic recording medium having a diamond-like carbon (DLC) film added therein a Group IV element of the periodic table such as silicon, particularly in the vicinity of the boundary between the...
7385785 Magnetic recording medium and magnetic recording and reproduction apparatus  
A magnetic recording medium is provided, which includes a recording layer formed in a concavo-convex pattern to achieve high areal density and can ensure good recording and reproduction...
7368186 Master carrier for magnetic transfer  
The master carrier for magnetic transfer of the invention comprises a support and a magnetic layer formed on the surface of the support, wherein an uneven transfer pattern that corresponds to the...
7368184 Magnetic recording medium and magnetic recording device  
A magnetic recording medium which has a high areal density and reduced power consumption for recording operations, and a magnetic recording device incorporating the magnetic recording medium. The...
7352529 Magnetic recording medium and magnetic recording and reproducing device using a magnetic recording layer formed with a predetermined concavo-convex pattern  
A magnetic recording medium including at least a disk substrate 1 A, a magnetic recording layer 5 formed with a predetermined concavo-convex pattern on the disk substrate 1 A, and a...
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...
7339764 Method of designing patterned magnetic recording medium and patterned magnetic recording medium  
A method of designing a patterned magnetic recording medium including a magnetic film with perpendicular magnetic anisotropy which is patterned into dots form includes steps of setting values to...
7324305 Magnetic recording medium including a magnetic layer with first magnetic particles and a protective layer with second magnetic particles  
The present invention enables a substantial decrease of the magnetic spacing while maintaining the flying height of the transducer and the structure of the protective layers for a magnetic...
7323258 Magnetic recording medium and method for manufacturing the same  
A magnetic recording medium which allows high density recording and has excellent durability can be obtained. A magnetic recording medium includes: a plurality of ferromagnetic material dots...
7322098 Method of simultaneous two-disk processing of single-sided magnetic recording disks  
Various methods and apparatus for simultaneously processing two single-sided hard memory disks is provided. Disks are positioned in pairs, with one surface of one disk positioned adjacent one...
7321481 Optical recording medium  
An optical recording medium includes a substrate, a light transmission layer and a plurality of recording layers between the substrate and the light transmission layer and capable of recording data...
7317594 Magnetic recording medium, head slider and manufacturing methods therefor  
A magnetic recording medium and head slider that can furnish excellent head flying stability, a magnetic recording device having excellent head flying stability, and a method for manufacturing, in...
7302448 System and method for maintaining multiple devices with a single device identifier  
A method, computer program product, and a data processing system for maintaining object configuration data in a data processing system is provided. A first set of attribute entries is stored in a...
7298588 Magnetic recording media using directly textured glass  
A magnetic recording medium deposited on glass and having an orientation ratio greater than one is disclosed. The magnetic recording medium includes a CoW seedlayer deposited on a circumferentially...
7296478 Master carrier for magnetic transfer, inspecting method thereof, and magnetic recording medium producing method  
In a master carrier for magnetic transfer which comprises a support that has a transfer-recording pattern arrayed in the track direction thereof in accordance with the information to be transferred...
7295404 Magnetic recording medium for perpendicular recording and magnetic storage apparatus using the same  
A perpendicular magnetic recording medium at least comprises a perpendicular magnetic recording layer and a backing layer backing the perpendicular magnetic recording layer. The backing layer has...
7289293 Perpendicular recording magnetic disk apparatus  
A perpendicular recording magnetic disk apparatus has a perpendicular two-layered medium including a pinning layer, a soft underlayer and a perpendicular recording layer, and a write head including...
7286324 Cobalt-platinum or iron-plantinum magnetic material containing 1% to 40% Cu, Ni or B  
A CoPt- or FePt-alloy magnetic material in which a temperature to transform into an L1 0 -ordered alloy is reduced and magnetic anisotropy energy is controlled, and a method for manufacturing the...
7277254 Magnetic recording disk and process for manufacture thereof  
A magnetic recording disk having a substrate, a magnetic layer formed on the substrate, a protective layer formed on the magnetic layer and a lubricant layer formed on the protective layer, the...
7259936 Glass substrate for a magnetic disk, a magnetic disk which can be formed with a stable texture and a magnetic disk device  
A glass substrate for a magnetic disk contains a transition metal. The substrate, which is subjected to formation of zone texturing by irradiating the substrate with a laser beam, has a high...
7242553 Substrate for magnetic recording medium  
When a soft magnetic layer for a double layer type perpendicular magnetic recording medium is formed by a plating method, there is the problem of the occurrence of an isolated pulse noise called...
7239483 Magnetic disk with specified contact ratio [BH 1.0 nm] and circumferential texturing and magnetic disk apparatus equipped with magnetic disk  
A texture processing for imparting a magnetic orientation in the circumferential direction is applied to a substrate so as to impart a magnetic anisotropy to the magnetic disk in the...
7236327 Information storage medium and apparatus adopting the same  
An information storage medium and an apparatus adopting the information storage medium. The information storage medium includes: a substrate; a lower magnetic layer formed on the substrate; and an...
7230795 Recording medium having reduced surface roughness  
Provided are a manufacturing method for a magnetic recording medium enabling efficient and reliable manufacturing of a magnetic recording medium with minimal surface roughness and good precision in...
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...
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...
7215502 Magnetic recording and reproducing apparatus with trapeziodal write pole tip to avoid overwriting adjacent tracks  
A magnetic recording and reproducing apparatus includes a magnetic head having a main magnetic pole, a magnetic recording medium of a discrete type having a predetermined convex-concave structure...
7214404 Perpendicular magnetic recording disk  
A perpendicular magnetic recording disk is provided. The perpendicular magnetic recording disk includes an underlayer between a substrate and a perpendicular magnetic recording layer for inducing...
7199977 Magnetic recording disk having a transition zone  
A disk drive having a magnetic recording disk with a transition zone is described. A surface texture of the transition zone induces the head to fly at a greater height than when operating over a...
7195808 System and method for identifying substrate side  
A system for marking the different sides of a substrate so that the different sides can be identified is disclosed. A substrate holder is used for marking a substrate during the film growth process...
7190538 Master carrier for magnetic transfer, inspecting method thereof, and magnetic recording medium producing method  
In a master carrier for magnetic transfer which comprises a support that has a transfer-recording pattern arrayed in the track direction thereof in accordance with the information to be transferred...
7180710 Magnetic recording medium having three ferromagnetic layers with increasing intrinsic coercivity from the lower to the upper layer  
A magnetic recording medium has a laminated magnetic structure with at least three magnetic layers, wherein the magnetic layers have decreasing intrinsic coercivity H 0 with distance from the...
7180709 Information-storage media with dissimilar outer diameter and/or inner diameter chamfer designs on two sides  
A single-sided magnetic hard disk 200 is provided that includes opposing first and second sides 300 and 308 having opposing first and second chamfers 408 and 412, respectively. The first...
7177118 Magnetic recording system with three-layer laminated media having improved signal-to-noise ratio  
A magnetic recording system uses a magnetic recording medium having a laminated magnetic structure with at least three magnetic layers, wherein the magnetic layers have decreasing intrinsic...
7170699 Master disk having grooves of different depths for magnetic printing and manufacturing method therefor  
A master disk has an aspect ratio of a width of a groove to a depth thereof to facilitate embedding of a soft magnetic film in the groove for stabilizing magnetic printability. The master disk has...
7168153 Method for manufacturing single-sided hard memory disks  
Various apparatus and methods are provided for positioning and handling single-sided hard memory disks. A disk carrier is provided with ribs formed on the inside surface of opposing side walls. The...
7167342 Magnetic recording medium, magnetic recording playback device, and information processing device  
A magnetic recording medium is provided while including a recording layer in which magnetic materials are in the shape of a circular cylinder and uniformity and size reduction are achieved...
7158346 Heat assisted magnetic recording film including superparamagnetic nanoparticles dispersed in an antiferromagnetic or ferrimagnetic matrix  
Heat assisted magnetic recording systems with composite recording films are disclosed. The magnetic recording films include superparamagnetic nanoparticles dispersed in an antiferromagnetic or...
7147906 Data storage medium comprising polyimides  
In one aspect the present invention provides a storage medium for data, the storage medium comprising: a) a substrate, a physical portion of which comprises at least one polyimide, and b) at least...
7138155 Method for evaluating optical information medium and optical information medium  
A simple method for evaluating an optical information medium by judging quantitatively and reproducibly the surface quality of the optical information medium by the use of an artificial fingerprint...
7136252 Magnetic recording and reproducing apparatus with recording layer having predetermined convex-concave pattern  
In the present invention, with respect to a convex-concave structure necessary for respective functions of a servo area in a perpendicular magnetic recording medium, a specification of...
7112377 Magnetic recording medium, method of manufacturing the same, magnetic medium substrate employed in the magnetic recording medium, and magnetic storage unit  
A magnetic recording medium is disclosed that includes a substrate; an anodic alumina film formed on the substrate; a pore formed in the anodic alumina film; a carbon layer covering the surface of...
7108903 Magnetic disc medium  
A magnetic disc medium comprising: a magnetic sheet in the form of a disk; a case encasing the magnetic sheet so as to be capable of rotating; and a nonwoven liner fastened on an inner face of the...
7099109 Hard disk drive having air flow accelerating device  
A hard disk drive having an air flow accelerator for improving taking-off and landing of a slider on a surface of a disk. The hard disk drive includes a spindle motor and a disk for storing data...
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