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8168309 |
Perpendicular recording media with sublayers of oxide dopant magnetic materials
Perpendicular recording media with sublayers of dual oxide dopant magnetic materials are disclosed. The magnetic layer may comprise multiple sublayers of magnetic materials. In each sublayer, dual...
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8158276 |
FePtP-alloy magnetic thin film
Disclosed are magnetic thin films, sputtering targets and vapor deposition materials, each of which is composed of 40-60 at % of Pt, 40-60 at % of Fe, 0.05-1.0 at % of P and furthermore depending...
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8147995 |
Patterned media bits with cladding shell
A bit patterned media (BPM) includes many magnetic dots arranged in tracks on a substrate. The magnetic dots each have a hard magnetic core, a soft magnetic cladding surrounding the core and a thin...
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8124255 |
Magnetic recording medium and magnetic recording and reproducing apparatus
A highly reliable magnetic recording medium is provided which has a recording layer formed in a concavo-convex pattern and wherein the recording layer is unlikely to cause a change in magnetic...
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8119263 |
Tuning exchange coupling in magnetic recording media
A magnetic recording medium having a substrate, a first magnetic layer and a second magnetic layer, in this order, wherein an exchange coupling in the first magnetic layer is lower than an exchange...
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8119264 |
Perpendicular magnetic recording disk with ultrathin nucleation film for improved corrosion resistance and method for making the disk
A perpendicular magnetic recording disk has a granular cobalt alloy recording layer (RL) containing an additive oxide or oxides, an intermediate layer (IL) as an exchange-break layer on the...
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8119266 |
Magnetic recording medium substrate, magnetic recording medium, method for manufacturing magnetic recording medium substrate, and method for manufacturing magnetic recording medium
Provided are a magnetic recording medium substrate whereupon a magnetic layer can be regularly formed in a recording area, a magnetic recording medium and a method for manufacturing the magnetic...
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8105704 |
Nonvolatile phase change magnetic material, manufacturing method thereof, and nonvolatile phase change magnetic memory using the same
A memory is provided that is improved in cost, life, energy consumption and recording density over existing optical disks and hard disks and operates under novel principles, as well as its...
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8088458 |
Magnetic latent image holding body, process cartridge, and image forming apparatus
The present invention provides a magnetic latent image holding body in which the surface thereof has water repellency and a magnetic latent image is visualized by a liquid developer that contains a...
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8076012 |
Magnetic thin film and method for forming the film, and magnetic thin film-applied device
Disclosed are a magnetic thin film capable of providing a high uniaxial magnetic anisotropy, Ku, while suppressing the saturation magnetization Ms thereof, and a method for forming the film; and...
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8048545 |
Perpendicular magnetic recording media with magnetic anisotropy gradient and local exchange coupling
A perpendicular magnetic recording medium adapted for high recording density and high data recording rate comprises a non-magnetic substrate having at least one surface with a layer stack formed...
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8039133 |
Magnetic recording medium and method for manufacturing the same
A magnetic recording medium, and method of manufacturing the same, is provided with excellent recording performance by employing a granular magnetic layer having a specified composition. A magnetic...
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8034470 |
Perpendicular magnetic recording medium and method of manufacturing the medium
A perpendicular magnetic recording medium is disclosed in which a soft magnetic layer used as a low Ku layer can be stably produced with high performance. Thermal stabilization of magnetization,...
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8029924 |
Thin film template for fabrication of two-dimensional quantum dot structures
An apparatus includes a first seedlayer including a hexagonal close-packed alloy with a sigma phase addition, and an active layer including a plurality of quantum dots on the first seedlayer. The...
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8021771 |
Composite heat assisted magnetic recording media with temperature tuned intergranular exchange
A thin film structure including a plurality of grains of a first magnetic material having a first Curie temperature embedded in a matrix of a second material having a second Curie temperature,...
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8007931 |
Magnetic recording medium
A perpendicular magnetic recording medium including: a substrate; a perpendicular magnetic recording layer disposed over the substrate; a soft magnetic underlayer disposed between the substrate and...
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8003236 |
Method for making a master mold with high bit-aspect-ratio for nanoimprinting patterned magnetic recording disks, master mold made by the method, and disk imprinted by the master mold
A method for making a master mold to be used for nanoimprinting patterned-media magnetic recording disks results in a master mold having topographic pillars arranged in a pattern of annular bands...
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7998607 |
Partially-oxidized cap layer for hard disk drive magnetic media
A perpendicular recording magnetic media with a partially-oxidized cap layer combines a second oxide layer with a first cap layer to form the singular, partially-oxidized cap. The oxidized portion...
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7993766 |
Perpendicular magnetic recording medium and method for fabricating the same
A magnetic recording medium is provided in the present invention. The magnetic recording medium including a substrate; a base layer disposed on the substrate; an intermediate layer disposed on the...
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7993762 |
Magnetic thin film and method of manufacturing the same, and various application devices using the same
The present invention relates to a magnetic thin film containing a L11 type Co—Pt—C alloy in which atoms are orderly arranged, and can realize an order degree excellent in regard to the L11 typ...
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7993765 |
Perpendicular magnetic recording medium
In a perpendicular magnetic recording medium which includes a substrate (1) of a nonmagnetic material, first and second nonmagnetic underlayers (4 and 5) formed on the substrate, and a...
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7976965 |
Magnetic recording medium and magnetic recording and reproducing device
A magnetic recording medium comprises a nonmagnetic substrate on which is disposed at least a vertical magnetic layer. The vertical magnetic layer comprises at least three layers including a lower...
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7976966 |
Magnetic tape formed of carbon nanotube arrays containing magnetic nanoparticles
A magnetic storage medium is formed of magnetic nanoparticles that are encapsulated within carbon nanotubes, which are arranged in a substrate to facilitate the reading and writing of information...
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7960044 |
Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches
A patterned perpendicular magnetic recording disk has a pre-patterned disk substrate with pillars and trenches arranged in data regions and servo regions. In the data regions, the height of the...
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7927725 |
Magnetic recording medium, production method thereof and magnetic disc apparatus
A magnetic recording medium for use in digital magnetic recording, which comprises a nonmagnetic substrate having deposited thereon a magnetic layer, wherein with respect to the in-plane direction,...
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7923136 |
Magnetic recording medium and method of manufacturing the same
According to one embodiment, a magnetic recording medium includes magnetic patterns made of a ferromagnetic recording layer containing Co, and a nonmagnetic layer which separates the magnetic...
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7923134 |
Perpendicular magnetic recording medium, method of manufacturing the same, and magnetic recording device
Embodiments of the present invention help to provide a discrete track medium for realizing a high track density in a low price by adopting a configuration, in which filling of a non-magnetic...
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7901804 |
Ferroelectric media manufacturing method thereof and information storage device using the same
A ferroelectric medium, a manufacturing method thereof and an information storage device are disclosed. The manufacturing method includes the steps of: forming an electrode layer on a substrate;...
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7901803 |
Perpendicular magnetic recording medium, manufacturing method therefor, and magnetic read/write apparatus using the same
A perpendicular magnetic recording medium includes: a substrate; at least one underlayer formed above the substrate; and a perpendicular magnetic recording layer formed above the at least one...
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7892663 |
Perpendicular magnetic recording media and magnetic storage apparatus using the same
Embodiments of the present invention provide a perpendicular magnetic recording media having excellent resolution, signal to noise ratio (S/N), and a small adjacent track erasure. According to one...
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7887939 |
Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof
An information recording medium comprises a substrate, a second recording layer, a second light transmitting layer, a first recording layer for recording different information from that to be...
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7879470 |
Apparatus, system, and method for the selection of perpendicular media segregant materials
A method for improving magnetic grain segregation in perpendicular recording media includes providing a substrate comprising a rigid support structure, depositing a soft underlayer on top of the...
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7879469 |
Ferrite magnet powder, sintered magnet, bond magnet, and magnetic recording medium
A ferrite magnet powder is represented by the composition formula AFe2+a(1-x)MaxFe3+bO27, wherein A represents at least one element selected from the group consisting of Sr, Ba, and Pb; and M...
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7879466 |
Perpendicular magnetic recording medium, and perpendicular magnetic recording and reproducing apparatus
The invention provides a perpendicular recording medium with high recording density, and a magnetic recording and reproducing apparatus, by improving the function of magnetic anisotropy of a soft...
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7875373 |
Perpendicular magnetic recording medium and magnetic storage apparatus using the same
Embodiments in accordance with the present invention help to obtain a perpendicular magnetic recording medium having a granular structure, excellent recording/reproducing properties, and excellent...
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7867638 |
Magnetic recording medium, method for producing thereof, and magnetic recording and reproducing apparatus
A magnetic-recording medium which is provided on a nonmagnetic substrate with at least an orientation-controlling layer for controlling the orientation of a layer formed directly thereon, a...
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7862917 |
Thermally stable perpendicular magnetic recording medium
Provided is a thermally stable perpendicular magnetic recording medium. The provided perpendicular magnetic recording medium includes a perpendicular magnetic recording layer between a lower layer...
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7862913 |
Oxide magnetic recording layers for perpendicular recording media
An improved structure for the construction of perpendicular recording media is disclosed. The structure includes a perpendicular recording layer with at least two oxide sublayers or a lower...
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7862915 |
Magnetic recording medium and magnetic recording/reproducing apparatus
According to one embodiment, a multilayered underlayer including a first underlayer containing Cu aligned in a (111) plane and a second underlayer formed on the Cu underlayer and containing Cu and...
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7846564 |
Perpendicular magnetic recording media with magnetic anisotropy/coercivity gradient and local exchange coupling
A perpendicular magnetic recording medium adapted for high recording density and high data recording rate comprises a non-magnetic substrate having at least one surface with a layer stack formed...
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7842409 |
Anti-ferromagnetically coupled perpendicular magnetic recording media with oxide
The present invention relates to perpendicular magnetic recording media with improved signal-to-medium noise ratio (“SMNR”) and thermal stability, which media include a pair of vertically spa...
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7813071 |
Thermally assisted recording system
A thermally assisted magnetic recording system is provided to achieve excellent thermal resistance and low noise. In one embodiment, a magnetic recording medium is used, in which the magnetic...
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7799447 |
Perpendicular magnetic recording medium having grain boundary layer containing ferromagnetic element
Embodiments of the invention ensure that a perpendicular magnetic recording medium having a granular magnetic recording layer made of CoCrPt alloy and Si oxide provides both high SNR and thermal...
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7794861 |
Patterned media, method of manufacturing magnetic recording medium, and method of manufacturing a base
To provide patterned media having novel structure. Plural convex members 2991 are provided in an array form on a substrate 2990. The convex member has a shape such that the cross section at each...
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7781082 |
Magnetic material
A magnetic material is provided that has an iron oxide phase whose principal phase is a crystal of a structure which has the same space group as ε-Fe2O3 crystal and in which Al is substituted for ...
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7781081 |
Magnetic recording medium, manufacturing method for the magnetic recording medium, and magnetic read/write apparatus
A magnetic recording medium 62 wherein a substrate 11, undercoating layers 13 and 14 formed on the substrate 11, and a magnetic recording layer 15, which include the magnetic crystal grain and the...
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7781078 |
Method and system for magnetic recording using self-organized magnetic nanoparticles
A method and system for magnetic recording using self-organized magnetic nanoparticles is disclosed. The method may include depositing surfactant coated nanoparticles on a substrate, wherein the...
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7758981 |
Method for making a master disk for nanoimprinting patterned magnetic recording disks, master disk made by the method, and disk imprinted by the master disk
A method for making a master disk to be used for nanoimprinting patterned-media magnetic recording disks uses sidewall lithography. In one implementation, the master disk substrate has a first...
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7754354 |
Patterned medium and method of manufacturing the same
A patterned medium and a method of manufacturing the same are provided. The patterned medium includes a data region having a plurality of recording dots arrayed along a plurality of tracks; and a...
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7736766 |
Magnetic storage media with Ag, Au-containing magnetic layers
A magnetic recording medium having a Au, Ag-containing magnetic layer having Co, Cr, Ag and Au; the magnetic recording layer having Co-containing magnetic grains surrounded by substantially...
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