Matches 1 - 50 out of 75 1 2 >
Match Document Document Title
7402348 Perpendicular magnetic recording medium  
A magnetic recording layer is formed on an auxiliary magnetic layer in a perpendicular magnetic recording medium. The auxiliary magnetic layer has the axis of easy magnetization in the vertical...
7381481 Magnetic tape having controlled heat-shrinkage and humidity expansion with two or more column-like magnetic layers  
A magnetic tape having a small degree of deformation, high form stability and little decrease in reproduction output even after stock at a high humidity is provided. The magnetic tape includes a...
7378164 Soft underlayer structure for magnetic recording  
A magnetic recording medium having a soft magnetic underlayer structure that includes two soft underlayers is presented. A thick first soft underlayer, disposed on the medium substrate, is made of...
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...
7297421 Evaporation type magnetic recording medium and magnetic recording and reproducing device  
A lower magnetic layer magnetized and formed in a first direction and an upper magnetic layer magnetized and formed in a second direction opposite to the lower magnetic layer are laminated on a...
7279240 Laminated perpendicular magnetic recording media with uncorrelated grains  
A laminated perpendicular magnetic recording medium comprises a non-magnetic substrate and at least a pair of polycrystalline, vertically stacked, spaced-apart perpendicular magnetic layers...
7201977 Anti-ferromagnetically coupled granular-continuous magnetic recording media  
An anti-ferromagnetically coupled, granular-continuous (“AFC-GC”) magnetic recording medium having increased thermal stability, writability, and signal-to-medium noise ratio (“SMNR”),...
7172824 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Laminated perpendicular magnetic recording media with uncorrelated grains  
A laminated perpendicular magnetic recording medium comprises a non-magnetic substrate and at least a pair of polycrystalline, vertically stacked, spaced-apart perpendicular magnetic layers...
7074508 Magnetic recording medium including at least one superparamagnetic layer and magnetic storage apparatus  
A magnetic recording medium has a base structure, and a synthetic ferrimagnetic structure which is disposed on the base structure and forms a recording layer. The synthetic ferrimagnetic structure...
7060375 Perpendicular magnetic recording media  
A perpendicular magnetic recording medium having a good thermal stability and a high recording density is provided. The perpendicular magnetic recording medium includes at least a first and a...
7008705 Layered polycrystalline structure and method of making the same  
A layered polycrystalline structure includes a seed crystal or Cr layer containing non-magnetic Cr atoms. A non-magnetic crystal layer such as a Co 65 Cr 35 layer is formed on the exposed surface...
6881504 Perpendicular magnetic recording medium and magnetic storage apparatus using the same  
A large-capacity magnetic storage apparatus is disclosed, capable of performing ultra-high density magnetic recording of 50 gigabits or more per 1 square inch. In a perpendicular magnetic recording...
6808824 Perpendicular magnetic recording media  
There is provided a perpendicular magnetic recording medium comprising a non-magnetic layer having a face-centered cubic structure, an antiferromagnetic layer provided on the non-magnetic layer, a...
6773826 Perpendicular magnetic recording media and magnetic storage apparatus using the same  
A perpendicular magnetic recording medium and a magnetic storage apparatus, which show an excellent S/N ratio and are suitable for ultra high density magnetic recording, are provided. In the...
6667119 Magnetic recording medium comprising magnetic layers, the coercive force thereof specifically related to saturation magnetic flux density  
A magnetic recording medium having on a support at least two magnetic layers that include an uppermost magnetic layer for recording information and a lower magnetic layer for recording servo...
6660357 Perpendicular magnetic recording media with laminated soft magnetic underlayer  
Magnetic recording media having a biased soft magnetic underlayer are disclosed. The soft magnetic underlayer includes at least two soft magnetic layers separated by a thin non-magnetic layer....
6652999 Magnetic recording medium and signal recording system comprising at least two magnetic layers with orthogonally oriented axes  
A magnetic recording medium comprising two or more magnetic layers provided on a support, wherein an easily magnetizable axis of an uppermost magnetic layer and an easily magnetizable axis of a...
6645647 Magnetic recording media including magnetically soft composite layer and method of making same  
Magnetic recording disks having a composite soft magnetic layer are provided. The soft magnetic layer includes a relatively thick layer of low saturation moment soft magnetic material and a...
6613428 Magnetic recording medium and magnetic recording and reproducing apparatus wherein the magnetic layer has a fluctuation of field; A or Hf of not less than 30 Oersteds  
A thin film magnetic recording medium including a magnetic layer having a fluctuation field defined as S/X irr , where S is magnetic viscosity and X irr is irreversible susceptibility X irr . The...
6610424 Magnetic recording medium and magnetic storage apparatus  
A magnetic recording medium provided with a substrate and a magnetic layer disposed above the substrate, is characterized by the magnetic layer which includes an initial layer located closer to the...
6607849 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...
6599646 Magnetic recording medium  
An information recording layer consisting of a composite of an ordered alloy of L1 0 crystal structure selected from a group A, and MgO is used for a perpendicular magnetic recording medium. The...
6468670 Magnetic recording disk with composite perpendicular recording layer  
A composite perpendicular magnetic recording disk has two distinct magnetic layers formed on the disk substrate, each with strong perpendicular magnetic anisotropy, that are strongly exchange...
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...
6395413 Perpendicular magnetic recording medium  
A perpendicular magnetic recording medium having an excellent thermal stability of the recorded signal and S/N and a low medium noise, and capable of easily forming a perpendicular magnetic...
6383598 Patterned magnetic recording media with regions rendered nonmagnetic by ion irradiation  
A patterned magnetic recording disk has a magnetic recording layer patterned into discrete magnetic and nonmagnetic regions having substantially the same chemical composition. The magnetic regions...
6331364 Patterned magnetic recording media containing chemically-ordered FePt of CoPt  
A patterned magnetic recording disk, i.e., a disk with discrete magnetically recordable regions that can function as discrete magnetic bits, is formed by ion irradiating a continuous magnetic film...
6328822 Functionally graded alloy, use thereof and method for producing same  
The functionally graded alloy having a composition comprising 3-10 weight % of Al, 5-20 weight % of Mn, the balance being substantially Cu and inevitable impurities has a first portion composed...
6183832 CoCrPtB alloys with increased boron content and method of producing same  
A magnetic layer structure with a layer of cobalt-chromium-platinum-boron composite alloy containing 10% to 20% B in the magnetic layer. The useful magnetic properties of the magnetic layer...
6150016 High coercivity magnetic recording medium comprising a thin CoCrTa intermediate layer  
A high areal density magnetic recording medium exhibiting high remanent coercivity and high coercivity squareness is formed with a thin CoCrTa intermediate layer to provide appropriate crystalline...
6150015 Ultra-thin nucleation layer for magnetic thin film media and the method for manufacturing the same  
In this invention, an ultra thin layer of CoCr alloy nucleation layer is sputtered at an extremely low deposition rate above a predominantly (200) oriented Cr film followed by a CoCrPt based alloy...
6110557 Vertical-magnetic-recording medium with barium ferrite magnetic layer  
A very-high-performance ultrahigh-density vertical-magnetic-recording disk and associated method of manufacture is disclosed. The magnetic-recording disk has a rigid disk-shaped substrate composed...
6057021 Magnetic recording media and magnetic recording system using the same  
In a magnetic recording medium having a non-magnetic disk substrate and a magnetic film formed on the surface of the non-magnetic disk substrate, a surface average roughness factor Ra(r) on the...
6037052 Magnetic thin film ferrite having a ferrite underlayer  
A magnetic thin film includes a ferrite-containing underlayer and a ferrite-containing top layer. The composition of the underlayer differs from that of the top layer. During ex-situ annealing of...
5952097 CoCrTa/Cocrptta bi-layer magnetic thin films  
Double layer, or bi-layer, magnetic films are deposited over a substrate with an underlayer. The bi-layer film is a film of two different magnetic layers which have different chemical composition,...
5876848 Thin film magnetic structure having ferromagnetic and antiferromagnetic layers  
A method of forming a magnetic structure having layers with different magnetization orientations provided by a common magnetic bias layer includes the steps of depositing an antiferromagnetic layer...
5849400 Magnetic thin film, and method of manufacturing the same, and magnetic head  
A magnetic thin film having excellent soft magnetic properties formed by alternately laminating a main magnetic layer and an intermediate layer, in which the main magnetic layer includes magnetic...
5815342 Perpendicular magnetic recording/reproducing apparatus  
Disclosed is a perpendicular magnetic recording/reproducing apparatus comprising perpendicular magnetic recording media and magnetic heads. Each perpendicular magnetic recording medium has a...
5796533 System for magnetic contact duplication  
A system for magnetic contact duplication by transferring an information signal recorded on a mother tape onto a blank tape, wherein the mother tape and the blank tape each includes at least one...
5736262 Magnetic recording medium  
A magnetic recording medium comprising: a non-magnetic substrate; a Co-based alloy magnetic layer (ML); and a non-magnetic Cr-based underlayer position between said magnetic layer and said...
5736235 Magnetic recording medium having at least two magnetic layers with easy axes oriented in the same direction  
A magnetic recording medium, its fabrication method, and a magnetic recording apparatus in which both saturation induction and coercive force of a magnetic film is made high as they are near a...
5731068 Magnetic recording medium  
A magnetic recording medium is disclosed which comprises a support and formed thereover a magnetic layer having a multilayer structure comprising at least two vapor-deposited metal films each made...
5665460 Magnetic recording medium  
A magnetic recording medium having a first magnetic layer positioned on a substrate and a second magnetic layer positioned on the first magnetic layer, wherein the first magnetic layer is a film of...
5589262 Perpendicular magnetic recording medium having a soft magnetic underlayer with a stripe magnetic domain structure  
A perpendicular magnetic recording medium for use on a magnetic recording/reproducing apparatus which has a magnetic head for recording/reproduction includes a substrate, a magnetic recording layer...
5580667 Multilayered medium with gradient isolation layer  
A thin-film multilayered recording medium is disclosed. The medium contains two or more magnetic thin-film sublayers separated by an isolation layer having an axial composition gradient.
5576085 Thin-film recording medium with soft magnetic layer  
A magnetic thin-film medium having improved magnetic recording properties, including an increased magnetic remanence and high frequency signal amplitude, is disclosed. The magnetic recording medium...
5558945 Magnetic recording medium  
A magnetic recording medium having excellent electromagnetic characteristics, still characteristics and cupping, decreased rust generation and high durability, includes a non-magnetic substrate and...
5525398 Perpendicular magnetic recording medium and method for making  
A perpendicular magnetic recording medium has a magnetic layer comprised of two stacked sublayers each in the form of ferromagnetic metal thin film consisting of columnar crystal grains wherein the...
5462796 Flash chromium interlayer for improved hard disk magnetic recording performance  
A discontinuous flash chrome interlayer of about 5 to 25 Å is incorporated between the upper and lower magnetic recording alloy layers. This flash non-magnetic separation layer is so thin that it...
5453886 Digital recording method using a specified magnetic recording medium  
A magnetic recording medium for digital recording has a magnetic layer on a non-magnetic substrate. The magnetic layer includes a lower layer of ferromagnetic metal thin film nearer to the...
Matches 1 - 50 out of 75 1 2 >