Patent application number | Description | Published |
20100008208 | Optical Recording Using a Waveguide Structure and a Phase Change Medium - An apparatus includes a component having a first surface, a first waveguide for directing electromagnetic radiation to a focal point adjacent to the first surface, a storage medium positioned adjacent to the first surface, a detector for detecting electromagnetic radiation reflected from the storage medium, and a structure positioned adjacent to the focal point for collecting the reflected electromagnetic radiation and for transmitting the reflected electromagnetic radiation toward the detector, wherein the structure comprises a second waveguide including a first cladding layer positioned adjacent to a first side of the first waveguide and having a first end positioned adjacent to the first surface and a second cladding layer positioned adjacent to a second side of the first waveguide and having a first end positioned adjacent to the air bearing surface. | 01-14-2010 |
20100018028 | RELEASE LAYER FOR PERMANENT MASTER FOR PATTERNED MEDIA MANUFACTURING - The invention relates to a method of manufacturing a patterned media Ni stamper comprising depositing a perfluorodecyltrichlorosilane release layer. The release layer eliminates bonding at the master-stamper interface. A permanent master for manufacturing a patterned media stamper is also provided. | 01-28-2010 |
20100053809 | EMBEDDED SERVO ON TRACK FOR BIT-PATTERNED MEDIA (BPM) - A method of making a disc for a computer disc drive and a disc made in accordance with the same. The disc includes a deposited magnetic layer of a thin film medium over a disc-shaped substrate. A master pattern having a plurality of tracks is recorded on the disc. Each track on the disc includes a plurality of magnetic islands, each having a size and magnetic properties. The size and/or magnetic properties of one or more of the magnetic islands of each track are modulated such that each track has a modulation frequency, so as to imprint a magnetic topology on the disc. The modulation frequency of each track is either a fundamental frequency or an overtone of the fundamental frequency. | 03-04-2010 |
20100073809 | X-AMR ASSISTED RECORDING ON HIGH DENSITY BPM MEDIA - A method of writing information to an area of a bit-patterned medium, in which a magnetized probe generates a magnetic probe field at the area of bit-patterned medium to be written, applying an oriented static magnetic field, and applying an oriented microwave field at a selected frequency, resulting in the writing of information onto the area of bit-patterned media. | 03-25-2010 |
20100080895 | Method of producing self-assembled cubic FePt nanoparticles and apparatus using same - A method comprises: heating a solution of platinum acetylacetonate, Fe(CO) | 04-01-2010 |
20100110577 | 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, wherein the second Curie temperature is lower than the first Curie temperature and the second material comprises one or more of an oxide, a sulfide, a nitride, and a boride. | 05-06-2010 |
20110086195 | Method Of Producing Self-Assembled Cubic FePt Nanoparticles And Apparatus Using Same - An apparatus includes a substrate, a magnetically soft underlayer on the substrate, and a plurality of generally cubic FePt nanoparticles on the magnetically soft underlayer, wherein the nanoparticles have a magnetization in a direction substantially normal to a surface of the magnetically soft underlayer. The FePt nanoparticles can have magnetically easy axes perpendicular to the surface of the soft underlayer. | 04-14-2011 |
20110102930 | WAVEFORM BASED BIT DETECTION FOR BIT PATTERNED MEDIA - The presently disclosed technology teaches a transducer head with a read sensor, a write pole, and one or more waveform sensors attached to the transducer head. Further, a waveform propagates in the direction of a BPM and the waveform sensor is configured to detect the waveform after it is reflected from the BPM. Additionally, a spin-polarized current is influenced by the BPM and a spin angular momentum sensor detects changes in spin angular momentum of the current. Further, a processor relates at least one property of the reflected waveform and/or current with positions of patterned bits on the BPM. The processor may then modify a timing signal and/or transducer head position to ensure that data bits are accurately written to the BPM. The end result is the ability to more quickly and accurately detect the patterned bits and synchronize a position of the transducer head with the patterned bits. | 05-05-2011 |