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| Number | Title | Issue Date |
| 7423939 | Method for manufacturing magneto-optical recording medium A method for manufacturing a magneto-optical recording medium in which reading of recorded information is performed through domain wall displacement in a reproduction layer is provided, in which magnetic separation of groove side-wall portions is performed more reli... | 09/09/2008 |
| 7399539 | DWDD-type magneto-optic recording medium including buffer regions between recording track regions and method of producing the same A magneto-optic recording medium has a stacked structure composed of a memory layer, a domain wall displacement layer having domain wall-resistant magnetism smaller than the memory layer, and a switching layer having a lower Curie temperature than these layers inter... | 07/15/2008 |
| 7352658 | Method for recording information data to a recording medium by irradiation with a light beam and application of a magnetic field A magnetic recording medium comprises a first magnetic film and a second magnetic film on a substrate. The second magnetic film is composed of a magnetic material preferred for recording and reproduction, and the first magnetic film is composed of a ferrimagnetic ma... | 04/01/2008 |
| 7313055 | Magnetic domain wall displacement type magneto-optical recording medium Provided is a magneto-optical recording medium capable of accurately reproducing a signal of a recording density exceeding a resolution of an optical system without making a constitution thereof complicated. The magnetic domain wall displacement type magneto-optical... | 12/25/2007 |
| 7200072 | Domain wall displacement magneto-optical recording and reproducing apparatus A recording/reproducing apparatus for a domain-wall-displacement magneto-optical recording medium with good format efficiency, capable of providing a good reproduction signal and securing a maximum recording region for a user is provided which comprises a recording ... | 04/03/2007 |
| 7173884 | Magnetooptic recording medium and its manufacturing method A first dielectric layer 3, a multilayer magnetic film 10 in which a first magnetic layer 4 having perpendicular magnetic anisotropy at room temperature, a second magnetic layer 5 having inplane magnetic anisotropy at room temperature, an... | 02/06/2007 |
| 7161876 | Magneto-optical recording medium, and method for recording information in a recording layer A magneto-optical recording medium includes a substrate and a reproducing layer and a recording layer provided on the substrate. A recording magnetic domain is provided in the recording layer by heating the recording layer by irradiation with light and applying a re... | 01/09/2007 |
| 7162433 | System and method for interactive contests A system and method provide content review, distribution, ranking and access and automate creation and performance of contests among sets of content-based contestants. The system and method provide customizable interactive, ongoing, multi-level, multi-round contests... | 01/09/2007 |
| 7151716 | Magneto-optical recording medium having a transfer control layer A magneto-optical recording medium, including a recording layer, a transfer control layer magnetically coupled to the recording layer, and a reproduction layer. The recording layer includes a recording magnetic domain in which information is recorded by a magnetizat... | 12/19/2006 |
| 7142384 | Magnetic recording medium having magnetic decoupling ability A magnetic recording medium includes a positioning magnetic layer having magnetism and is used for positioning the optical head. The magnetic recording medium recording method includes a first step of moving the magnetic head to a predetermined position on the magne... | 11/28/2006 |
| 7133330 | Magneto-optical recording apparatus having recovery processing unit A magnetooptic recording medium has at least a recording layer for recording data and a reproducing layer for reproducing the data recorded in the recording layer onto a substrate and reproduces the data by setting a proper reproducing laser power upon reproduction.... | 11/07/2006 |
| 7126886 | Magneto-optical recording medium and method for producing the same According to the present invention, a light beam is radiated to an area between recording tracks while the intensity of a magnetic field from the outside to a magneto-optical recording medium is suppressed to 50 Oe or less, whereby magnetic anisotropy formed between... | 10/24/2006 |
| 7092318 | Magneto-optical recording medium having a plurality of magnetic layers In a magneto-optical recording medium, a first magnetic layer is made of a material using a Gd—Fe film or a Gd—Fe—Co film as a base so that a magnetic field normalized based on saturation magnetization of a magnetic domain wall driving field can be larger than... | 08/15/2006 |
| 7035138 | Magnetic random access memory having perpendicular magnetic films switched by magnetic fields from a plurality of directions A magnetization reversal method is a method of applying an external magnetic field to a magnetoresistive film, in which the magnetoresistive film has a structure wherein a nonmagnetic film is placed between magnetic films with an easy axis of magnetization along a p... | 04/25/2006 |
| 7012857 | Magneto optical recording medium having a multilayer recording film of different thickness A magneto optical recording medium capable of stable recording and readout using a DWDD system is provided. The magneto optical recording medium of the present invention comprises an optical disk substrate and a multilayer recording film comprising essentially a rea... | 03/14/2006 |
| 6993570 | System and method for pushing personalized content to small footprint devices A containment framework sufficiently compact and efficient to run on a wide variety of resource-constrained, small footprint devices, such as personal data assistants (PDAs), smart cellular phones, global positioning system (GPS) receivers, etc. The containment fram... | 01/31/2006 |
| 6980491 | Domain wall displacement type magneto-optical recording medium and recording method There is provided a domain wall displacement type magneto-optical recording medium and a recording method that allow signals recorded with a high density over the limit of resolution of optical systems to be regenerated without increasing complexity of a recording a... | 12/27/2005 |
| 6980490 | Optical disk and manufacturing method for the same An optical disk is made of tracks that are magnetically separated from one another by scanning a focused light beam over lands between tracks at a predetermined power and annealing to lower the magnetic anisotropy of a magnetic layer on the lands, and is provided wi... | 12/27/2005 |
| RE38922 | Magneto-optical recording medium and method for reproducing information from a magneto-optical recording medium having three layers A magnetooptical recording medium has a first magnetic layer which is an in-plane magnetization film at both room temperature and high temperatures and changed to a perpendicular magnetization film at intermediate temperatures, and a second magnetic layer which is c... | 12/20/2005 |
| 6901034 | Magneto-optical storage medium having data in uniform magnetized recording direction A magnetooptic recording medium has at least a recording layer for recording data and a reproducing layer for reproducing the data recorded in the recording layer onto a substrate and reproduces the data by setting a proper reproducing laser power upon reproduction.... | 05/31/2005 |
| 6834026 | Method for thermally-assisted recording on a magnetic recording disk A magnetic recording medium for thermally-assisted recording is a bilayer of a high-coercivity, high-anisotropy ferromagnetic material like FePt and a switching material like FeRh or Fe(RhM) (where M is Ir, Pt, Ru, Re or Os) that exhibits a switch from antiferromagn... | 12/21/2004 |
| 6821642 | Magneto-optical recording medium with first and second magnetic layers with almost equal Curie temperatures A magneto-optical recording medium includes at least three magnetic layers of a first magnetic layer, a second magnetic layer and a third magnetic layer, in which a recording mark recorded in the third magnetic layer by irradiation of a light beam is transferred thr... | 11/23/2004 |
| 6791908 | Magneto-optical recording medium having a transfer control layer A magneto-optical recording medium, including a recording layer, a transfer control layer magnetically coupled to the recording layer, and a reproduction layer. The recording layer includes a recording magnetic domain in which information is recorded by a magnetizat... | 09/14/2004 |
| 6788624 | Method and apparatus for reproducing information from a magneto-optical recording medium A magneto-optical recording medium includes a substrate and a reproducing layer and a recording layer provided on the substrate. A method for reproducing information from the magneto-optical recording medium includes increasing the temperature of the magneto-optical... | 09/07/2004 |
| 6767656 | Magneto-optical recording medium and method of reproducing the same A magneto-optical recording medium comprising four magnetic layers including a mask layer, a reproduction layer, an intermediate layer and a recording layer, wherein the reproduction layer and the recording layer each have a direction of easy magnetization extending... | 07/27/2004 |
| 6690626 | Optical disk with magnetic layer separated magnetically between tracks and method of magnetically separating tracks of the optical disk On a disk-shaped substrate in which a predetermined region ranging in a radial direction is used as a data region for recording/reproduction, a first dielectric layer, a magnetic layer, and a second dielectric layer are provided. The data region includes ... | 02/10/2004 |
| 6660404 | Magnetooptical recording medium including a connection layer that is non-magnetic by itself at room temperature but can be induced to exhibit magnetism when in contact with a magnetic layer A magnetooptical recording medium comprising at least a reproduction layer, an intermediate layer, a connection layer and a recording layer, wherein the reproduction layer and intermediate layer have a slant magnetic direction in a non-magnetic field, and... | 12/09/2003 |
| 6630252 | Magneto-optical recording medium comprising four magnetic layers An MO disk includes a readout layer, an intermediate layer and a recording layer each of which is made of a rare earth-transition metal amorphous material. The MO disk also includes a fourth magnetic layer formed on the recording layer and made of a rare ... | 10/07/2003 |
| 6625090 | Magneto-optical recording medium, and magneto-optical recording/reproducing apparatus Using MSR (magnetically induced super-resolution) technology, a read-head field is applied to a magneto-optical recording medium when reading an information signal from a recording layer of a magneto-optical recording medium, in order to magnetize the rea... | 09/23/2003 |
| 6456571 | Magneto-optical recording medium and reproducing method thereof A magneto-optical recording medium comprising a recording magnetic layer made of a perpendicularly magnetized film and a multilayer reproducing film, wherein the multilayer reproducing film has two reproducing magnetic layers which are in a in-plane magne... | 09/24/2002 |
| 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 |
| 6370089 | Magneto-optical recording medium simplifying transfer of magnetic domain A magneto-optical recording medium including a substrate, a reproducing layer formed on the substrate, an intermediate layer formed on the reproducing layer, a recording layer formed on the intermediate layer and a high magnetization layer formed on the r... | 04/09/2002 |
| 6221219 | Magneto-optical medium and process for production thereof A magneto-optical medium comprises a light-transmissive substrate, a third magnetic layer formed on the light-transmissive substrate, a first magnetic layer formed on the light-transmissive substrate, the first magnetic layer having lower domain wall coer... | 04/24/2001 |
| 6141297 | Magneto-optical recording medium Magneto-optical recording medium having a reproduction layer of multilayer wherein a multilayer of magnetic/non-magnetic layers is used as the reproduction layer or a recording layer in MSR or MAMMOS magneto-optical disk and thicknesses of layers in the m... | 10/31/2000 |
| 5966349 | Rewritable high density magneto-optical disk A magneto-optical recording medium capable of performing light-intensity-modulation direct overwrite and having excellent practical characteristics is provided. A magneto-optical recording film is formed by stacking a reproducing layer made of a magnetic ... | 10/12/1999 |
| 5936915 | Magneto-optical medium for reproducing information by the utilization of magnetic wall movement, and signal reproducing method A magneto-optical recording medium includes a first magnetic layer of which the magnetic wall moves and which contributes to reproduction, a third magnetic layer in which information is accumulated, and a second magnetic layer disposed between the first a... | 08/10/1999 |
| 5936916 | Magneto-optical recording medium with multiple magnetic layers and methods related thereto If the Curie points of the first magnetic layer, second magnetic layer, third magnetic layer and fourth magnetic layer of alloys of rare-earth metal and transition metal as ferrimagnetic materials showing perpendicular magnetization from room temperature ... | 08/10/1999 |
| 5932364 | Magneto-optical recording medium, method of recording and reproducing information in and from said magneto-optical recording medium and method of producing said mageto-optical recording medium A magneto-optical recording medium according to the present invention comprises a recording layer in which information is to be recorded; and a reproducing layer to and from which information recorded in the recording layer is to be transferred and read o... | 08/03/1999 |
| 5930207 | Magneto-optical recording medium having plural dielectric layers with different thermal conductivities A magneto-optical recording medium provided with a first dielectric layer formed on a substrate, a second dielectric layer containing at least silicone nitride and formed on the first dielectric layer, and a recording layer consisting of a magnetic film w... | 07/27/1999 |
| 5903526 | Magneto-optical recording medium having multiple magnetic layers Magneto-optic recording medium has at least a 1st magnetic layer for recording information signals, a 2nd magnetic layer formed on the 1st magnetic layer and a 3rd magnetic layer formed on the 2nd magnetic layer. The 1st and 3rd magnetic layers are made o... | 05/11/1999 |
