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| Number | Title | Issue Date |
| 8164987 | Thermally assisted magnetic head A magnetic write head arranged to maximize efficiency of an optical device used to locally heat a magnetic medium during use, also to maximize efficiency of a heater element for thermal fly height control. The magnetic head is constructed with a read head, a write h... | 04/24/2012 |
| 7983117 | Optical memories, method for reading and writing such optical memories, and device for reading and writing such memories The invention concerns a optical data memory, said memory comprising at least one layer of supporting material, said supporting material including molecules having, in a local zone, a collective state of molecules from at least one first collective state of molecule... | 07/19/2011 |
| 7924658 | Heat-assisted magnetic recording head constituted of slider and light source unit, and manufacturing method of the head Provided is a method for manufacturing a heat-assisted magnetic recording head, capable of joining a light source unit and a slider with a sufficiently high alignment accuracy. In the method, the unit including a light source is joined to the slider including a head... | 04/12/2011 |
| 7869309 | Dual wire integrated WAMR/HAMR writing head An apparatus comprises a waveguide, an optical transducer for coupling electromagnetic radiation from the waveguide to a point adjacent to an air bearing surface to heat a portion of a storage medium, and a first wire positioned adjacent to the air bearing surface, ... | 01/11/2011 |
| 7609480 | Heat-assisted magnetic recording head An apparatus, comprising a slider. The slider includes a substrate with an air bearing surface and a trailing substrate side. The slider includes an optoelectronic heater and a magnetic head being mounted on the trailing substrate side. Thermal insulation is interpo... | 10/27/2009 |
| 7420887 | Optical storage apparatus, method for regeneration from optical storage medium, and method for recording on optical storage medium If regeneration is not performed normally when data is regenerated from a medium, a read retry processing unit changes the intensities of the laser beam and of the regeneration magnetic field respectively to prearranged stages to perform the regeneration again. A re... | 09/02/2008 |
| 7394730 | Apparatus for patterning recording media A method for patterning a recording medium selectively thermally couples a recording medium and a heat source to alter a chemical composition of the recording medium. An apparatus for patterning a recording medium has a heat source for generating and directing an in... | 07/01/2008 |
| 7355957 | Optical disc medium having a system information recording area of low recording density In order to stably carry out reproduction of information in an optical disc medium (10) using a PRML (partial-response maximum-likelihood) method for reproducing the signal, the optical disc medium (10) has not only a data recording area (14) wh... | 04/08/2008 |
| 7355951 | High density data recording/reproduction method utilizing electron emission and phase change media, and data recording system adopting the same, and media for the system A rapid data recording/reproducing method, a data recording system adopting the same, media for the system, and a tracking method, wherein the recording/reproducing method includes preparing media having a data recording layer in which a phase change is generated th... | 04/08/2008 |
| 7352659 | Method and apparatus for phase and/or copy window control use with a domain expansion recording medium and record carrier A method and apparatus for controlling read-out and/or synchronization between an external magnetic field and written data during a reading operation from a magneto-optical recording medium includes generating a pulse in a reading signal in a read-out layer by copyi... | 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 |
| 7327639 | Hybrid writing and reading head to record data with high density A hybrid head to record and reproduce high density data. The hybrid head to record and reproduce data includes an element to record and reproduce data which is formed at the back side of a slider. The element to record and reproduce data includes an energy source to... | 02/05/2008 |
| 7327540 | Hard biased materials for recording head applications A hard bias layer that forms an abutting junction with a free layer in a GMR element and is comprised of FePtCu or FePtCuX where X is B, C, O, Si, or N is disclosed. The FePtCu layer has a composition of about 45 atomic % Fe, 45 atomic % Pt, and 10 atomic % Cu and d... | 02/05/2008 |
| 7310205 | Thermally assisted recording of magnetic media using a resonant cavity and energy A magnetic head including a media heating device including an optical cavity resonator that produces a high intensity near-field optical beam adjacent to the write pole. Optical energy is coupled into the resonant cavity through a waveguide that is placed proximate ... | 12/18/2007 |
| 7293344 | Process of making CD uniformity in high track density recording head A process for achieving tighter reader and writer track width control is disclosed. The write gap layer is used as the plating seed on which the upper pole is electro-formed. This allows the write gap layer to then be deposited through a precisely controllable proce... | 11/13/2007 |
| 7277363 | Magneto-optical recording or reproducing device A magneto-optical recording or reproducing device having an information erasing means for erasing information or data recorded on a magneto-optical recording medium. According to the invention, the information erasing means comprises an erasing magnet having a field... | 10/02/2007 |
| 7277364 | Magneto-optical recording medium device A magneto-optical recording medium device of the present invention optimizes a magnetic field forming the front mask and a magnetic field forming the rear mask by use of a single bias magnetic field generator, by shifting the peak position of the bias magnetic field... | 10/02/2007 |
| 7274626 | Magneto-optical recording using a heating element A perpendicular magnetic recording medium for thermo-magnetic printing has an ultra-high recording density and is resistant to thermal decay of magnetization. An intermediate layer of the medium is provided between a first recording layer using a low-noise Co alloy ... | 09/25/2007 |
| 7268973 | Perpendicular magnetic head having thermally assisted recording element A perpendicular magnetic head including a media heating element that is fabricated within the magnetic head structure. The heating element is preferably fabricated above the first magnetic pole layer close to the ABS surface of the head. In one embodiment, following... | 09/11/2007 |
| 7253979 | Method and device for data read/write, recording medium, and program product A data read/write device includes a data write-processing unit that performs amplitude modulation on write data to obtain an amplitude-modulated signal that contains a plurality of amplitude levels, correlates a plurality of data included in the write data with each... | 08/07/2007 |
| 7251089 | Storage medium with overcoat layer for enhanced heating A data storage system includes a magnetic storage medium and a write head configured to be positioned adjacent the storage medium and. The write head includes a magnetic field source configured to apply a magnetic field to the storage medium and an optical near fiel... | 07/31/2007 |
| 7245562 | Method and device for high-speed magnetic recording The invention provides a method for recording information in the form of a pattern of magnetic domains in a recording layer. The recording layer includes a material having a Curie temperature and grains, the grains having boundaries over which the exchange coupling ... | 07/17/2007 |
| 7236332 | Thermally assisted recording of magnetic using an in-gap optical resonant cavity A magnetic head including a media heating device that is fabricated within the magnetic head structure. The media heating device is fabricated between the writing magnetic pole of a perpendicular magnetic head and the ABS surface of the head, where it serves to heat... | 06/26/2007 |
| 7233547 | Disc-shaped recording medium, manufacturing method thereof, and disc drive device A magneto-optical disk which reproduces information with an optical pickup head which uses an electromagnetic force as the driving force is provided. Other areas than at least the recording track are magnetized uniformly in a direction of canceling the influence of ... | 06/19/2007 |
| 7227829 | Mechanical data processing Described is a method for erasing data recorded in a data storage device in which a data bit is written onto a surface by applying a first combination of energy and force to the surface via a tip to form a pit in the surface representative of the data bit by local d... | 06/05/2007 |
| 7224644 | Head arrangement for domain expansion magnetic amplifying magneto-optical system A head arrangement for reading a magneto-optical recording medium (10) having a storage layer and a read-out layer, includes an improved field generating device for generating a magnetic field used for copying a written mark from said storage layer to said re... | 05/29/2007 |
| 7210155 | Magneto-optical recording medium having in-plane magnetizing layer A high-density magneto-optical recording medium having excellent jitter properties is provided. A pattern-dependent shift of the length of a recorded mark does not occur even when a minute mark has increased sensitivity to a recording magnetic field. A magneto-optic... | 04/24/2007 |
| 7205020 | Magnetic recording medium and method for manufacturing same A magnetic recording medium has a non-magnetic under-layer, a magnetic layer, a protective film and a liquid lubricant layer sequentially laminated on a non-magnetic substrate. The magnetic layer has a multi-layer structure laminated with two or more magnetic layer ... | 04/17/2007 |
| 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 |
| 7193284 | Magnetoresistance effect element, method of manufacture thereof, magnetic storage and method of manufacture thereof The present invention is aimed at enabling a spin-transfer magnetization switching in the random access magnetic memory by reducing a switching current density in the spin-transfer magnetization switching to an order smaller than 10 MA/cm2 and without cau... | 03/20/2007 |
| 7170842 | Methods for conducting current between a scanned-probe and storage medium Certain embodiments of the present invention are directed at data storage devices capable of storing, reading and writing data to storage areas of nanometer dimensions. Certain embodiments are directed at devices wherein a fluid medium and particles are provided bet... | 01/30/2007 |
| 7161755 | Increasing areal density in magnetic recording media A magnetic recording medium is made of a thin film medium that includes magnetic grains. At least one of a magnetization density of the magnetic grains, a crystalline anisotropy field of the magnetic grains, a thickness of the recording medium, an average diameter o... | 01/09/2007 |
| 7133230 | Recording head and information recording apparatus To generate a satisfactory recording magnetic domain on a recording medium and to improve the durability of a recording head, an information recording apparatus for generating an optical near field and thermo-magnetically recording information on the recording mediu... | 11/07/2006 |
| 7126883 | Optical information reproducing method, optical head device, and optical information processor An optical information reproducing method of the present invention is used for an optical recording medium. The optical recording medium includes a recording layer containing information and a mask layer that is located close to the recording layer and includes a no... | 10/24/2006 |
| 7126885 | Apparatus for patterning recording media A method for patterning a recording medium selectively thermally couples a recording medium and a heat source to alter a chemical composition of the recording medium. An apparatus for patterning a recording medium has a heat source for generating and directing an in... | 10/24/2006 |
| 7110327 | Magneto-optical recording and reproducing method, using reproducing layer with high saturation magnetization A magnetic recording medium comprises, on a substrate, a recording auxiliary layer, a recording holding layer, recording control layer, and a recording layer. The recording layer is constructed by using a ferri-magnetic material having perpendicular magnetization. T... | 09/19/2006 |
| 7099097 | Thermally assisted magnetic recording method A thermally assisted magnetic recording method is implemented for a storage disk with a magnetic recording layer which includes recording areas and non-recording areas. In this method, a heating laser is moved relative to the disk in facing relation to the magnetic ... | 08/29/2006 |
| 7072250 | Magneto-optical storage medium and optical disk drive A magneto-optical storage medium that protects against the effects of cross-talk, making it possible to further reduce the level of track density, and which also makes it possible to conduct high-density recording/playback with a reduced magnetic field for erasure a... | 07/04/2006 |
| 7069568 | Record head for thermally assisted magnetic recording A record head for the thermally assisted magnetic recording on a storage medium. The head has an inductive section, which includes a magnetic circuit having a record flux guide ending in a record pole, and an optical section, which includes an optical guide ending i... | 06/27/2006 |
| 7042818 | Device and method for controlling tilt servo A tilt servo control device of an apparatus for recording information on and reproducing information from an optical recording medium set in the apparatus, the apparatus comprising an optical system for leading a laser beam emitted from a light source to a recording... | 05/09/2006 |
