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Dynamic information storage or retrieval

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
10/02/2014 > 8 patent applications in 8 patent subcategories.

20140293760 - Magnetic disk unit and thermally-assisted magnetic recording method: The magnetic disk unit includes: a magnetic recording medium; a thermally-assisted magnetic recording head including a magnetic pole applying a recording magnetic field to the magnetic recording medium and a heating element heating the magnetic recording medium; and a controller allowing the heating element to perform a continuous heating operation... Agent: Tdk Corporation

20140293761 - Polarization rotator for thermally assisted magnetic recording: A waveguide structure with a light polarization rotator section for converting transverse electric light from a TE light source to transverse magnetic light which is subsequently coupled to a plasmon generator (PG) is disclosed. Wavelengths above 800 nm are advantageously used to reduce resistive heating in the PG, and in... Agent:

20140293762 - Optical disc device: An optical disc device includes an optical pickup unit including a semiconductor laser that shines a laser light, a light-receiving unit that receives the return light of the laser light, a high-frequency generating circuit that generates high-frequency signals, a pickup driver that generates a drive signal that drives the semiconductor... Agent: Funai Electric Co., Ltd.

20140293763 - Optical disc device and optical disc determination method: An optical pickup of an optical disc device is configured to read a signal recorded in an optical disc. An envelope signal generation unit is configured to generate an envelope signal from the signal read by the optical pickup. An off-track level storage unit stores an off-track level. An off-track... Agent: Jvc Kenwood Corporation

20140293764 - Optical disc inspection method in optical disc library apparatus and optical disc library apparatus: An optical disc library apparatus, on which and plural optical discs and plural optical drives are mounted, has the ability to reduce the degradation of recording/reproduction capability owing to the variation of temperature. In the optical disc library apparatus, causes for the quality degradation of the optical discs are analyzed;... Agent: Hitachi-lg Data Storage, Inc.

20140293765 - Information processing apparatus and information processing method: An information processing apparatus of the present invention includes an HDD status monitoring part 11 that monitors the use environment or use status of a hard disk drive; an HDD status recording part 13 that records the history of the use environment or use status monitored in the HDD status... Agent:

20140293766 - Optical element and optical head apparatus including the same: An optical element having compatibility among two or more wavelengths and having an excellent converging performance for light with each wavelength, and an optical head apparatus using the optical element are provided. An optical element according to the present disclosure has a first region including an optical axis and a... Agent:

20140293767 - Write-once type information storage medium (disk structure of recording type information storage medium having structure in which recording layer formed on transparent susbstrate is defined as inside), and information reproducing method or information rec: An embodiment of the invention, to provide a recording method and a storage medium for BCA data with high reliability for a storage medium and a method for reproducing BCA data from the storage medium, and an information recording apparatus and an information reproducing apparatus. In a conventional optical disk,... Agent: Kabushiki Kaisha Toshiba

09/25/2014 > 6 patent applications in 6 patent subcategories.

20140286147 - Plasmon generator having flare shaped section: The present invention relates to a plasmon generator, in which a surface plasmon is excited by application of light. The plasmon generator extends along one direction. The plasmon generator includes a first end surface that is positioned on one end in the one direction and at which near-field light is... Agent:

20140286148 - Optical disc device: The optical disc device has a circuit which forms a focus error signal for focus servo control based on reflection light from an optical disc exposed to laser light. Also, the device has a data processing unit which can control by feedback a position to which an objective lens is... Agent:

20140286149 - Automatic on-drive sync-mark search and threshold adjustment: A hard disk drive includes a processor to automatically adjust a threshold level for finding sync-marks. The processor determines all possible sync-mark patterns for a particular pattern length and analyzes each pattern with reference to real world data. The pattern with the largest distance gap is used. The threshold level... Agent: Lsi Corporation

20140286150 - Data archive system and quality inspection method: Disclosed is a data archive system that executes inspection of a recording quality of an optical disc, estimates a recording quality deterioration factor, and informs it to a user, and a method for estimating the recording quality deterioration factor. The data archive system has a server and a data library... Agent: Hitachi-lg Data Storage, Inc.

20140286151 - Optical pickup and disc device: An optical pickup includes a plurality of light sources, an objective lens, a diffractive optical element, and a light-detecting unit. The various light sources emit light of wavelengths that are different from each other. The objective lens focuses light on an optical disc. The diffractive optical element includes a diffracting... Agent: Funai Electric Co., Ltd.

20140286152 - Data recording/reproducing device, archive system, and recording control method: A data recording/reproducing device for recording data on a recordable area of a recording medium in an arbitrary recording unit, includes a control unit that controls the operation of the data recording/reproducing device. The control unit designates a recording unit where data on the recordable area is not recorded as... Agent: Hitachi-lg Data Storage, Inc.

09/18/2014 > 14 patent applications in 10 patent subcategories.

20140269232 - Near-field light generator and thermally-assisted magnetic recording head: A near-field light generator includes a multilayer structure having a front end face. The multilayer structure includes a first dielectric layer, a second dielectric layer, a third dielectric layer, a first metal layer, and a second metal layer. The first metal layer is interposed between the first dielectric layer and... Agent:

20140269233 - Thermally assisted recording head utilizing laser light with limited wavelength range: A thermally assisted magnetic recording head includes core that propagates laser light as propagation light, a near-field light generator that faces a portion of the core and extends to an air bearing surface (ABS), the near-field light generator coupled to the propagation light propagating through the core so as to... Agent:

20140269234 - Write head core: Implementations disclosed and claimed herein provide a write head core located in a slider, the write head core comprising a first end operative to serve as a write pole, a second end operative to serve as a return pole, wherein the first end comprises a substantially smaller cross-sectional area than... Agent: Seagate Technology LLC

20140269235 - Magnetoresistive element with nano-crystalline shield: A magnetoresistive data writer and reader may be generally configured at least with a magnetoresistive (MR) element contacting a magnetic shield that is contrasted of (Ni78Fe22)99.8O0.2 material. The magnetic shield may be formed with an electrodeposition process that uses β-diketones derivatives to form nano-crystalline grain structure after a subsequent annealing... Agent: Seagate Technology LLC

20140269237 - Multilayer plasmon generator: A plasmon generator has a front end face, a first metal layer, a second metal layer, and an intermediate layer. The front end face generates near-field light based on a surface plasmon. The intermediate layer is interposed between the first metal layer and the second metal layer. Each of the... Agent: Headway Technologies, Inc.

20140269236 - Systems and methods for monitoring the power of a light source utilized in energy-assisted magnetic recording: Aspects of the present invention relate to energy-assisted magnetic recording (EAMR), an EAMR assembly, and methods for fabricating the same. In several embodiments, an EAMR head includes a sub-mount on a slider that has a waveguide configured to receive light from a light source attached to a surface of the... Agent: Western Digital (fremont), LLC

20140269238 - Head transducer employing thermal sensor with high-tcr transparent conducting oxide: A head transducer includes a thermal sensor comprising a conducting ceramic material having a temperature coefficient of resistance. The thermal sensor can comprise a transparent conducting oxide having a temperature coefficient of resistance. The thermal sensor can be situated proximate a near-field transducer of the heat-assisted magnetic recording head transducer.... Agent: Seagate Technology LLC

20140269231 - Radially dependent thermal heat resistor layer: The embodiments disclose a data storage device including a thickness gradient heat sink layer deposited over a heat sink layer deposited over a substrate, a thickness gradient non-magnetic thermal resist layer deposited over the thickness gradient heat sink layer, and a magnetic layer deposited over the thickness gradient non-magnetic thermal... Agent: Seagate Technology LLC

20140269239 - Topographic feedforward system: A control mechanism may control the height and/or position of a read/write head configured to interact with a rotating information storage surface. A computation unit may compute a detected topography from gap measurements using a dynamic filter including a model of read/write head dynamics. A sensor may detect gap measurements... Agent: Elwha LLC

20140269240 - Drive carrier substrate: A drive carrier includes a substrate, a computing device located on the substrate, an electrical interface located on the substrate, and a light source located on the substrate and communicatively coupled to the computing device. The computing device is to control illumination of the light source.... Agent: Hewlett-packard Development Company, L.p.

20140269241 - High sample rate dpes to improve contact detection signal to noise ratio: Using a high sample rate dPES, together with pulsed heater and lock-in technique, to improve dPES SNR for contact detection between the head and media surface. Steps of powering a transducing head actuator with pulsed input signal at a select data track offset from a previously-written to data track of... Agent:

20140269242 - Method and device for verifying a servo pattern in tape media: A system and method for verifying a servo pattern in tape media include a tape drive unit which moves the tape media lengthwise across a read head. The tape drive unit is adapted to use a tape comprising at least one servo band, each servo band including at least one... Agent: Oracle International Corporation

20140269243 - Topographic feedforward system: A topography detection mechanism may measure surface height of a side read/write track while the read/write head is interacting with a current read/write track. A memory may store the measured surface height.... Agent: Elwha LLC

20140269244 - Optical head, objective lens, optical disc device, computer, optical disc player and optical disc recorder: An objective lens (101) is configured to converge laser light of a first wavelength λ1 (390 [nm]≦λ1≦430 [nm]), laser light of a second wavelength λ2 (630 [nm]≦λ2≦680 [nm]), and laser light of a third wavelength λ3 (750 [nm]≦λ3≦810 [nm]) on an information recording surface of a first information recording medium,... Agent:

09/11/2014 > 26 patent applications in 7 patent subcategories.

20140254333 - Polarization converter including a jagged diagonal line in plane orthogonal to propagation direction of electromagnetic wave: A polarization converter of the invention includes a core part that wave-guides an electromagnetic wave and a cladding part that is provided around the core part. The core part includes a conversion part converting a polarization state of the electromagnetic wave. A cross-sectional shape of the conversion part in a... Agent: Tdk Corporation

20140254334 - Encapsulated laser diode for heat-assisted magnetic recording: A magnetic write head is disclosed that includes a slider that includes a laser diode having a light-emitting edge or surface of a laser diode and an optical waveguide. The disclosed magnetic write head also includes a dielectric layer disposed in a gap between the laser diode and an input... Agent: Seagate Technology LLC

20140254339 - Etch stop configuration: A method of making a transducer head disclosed herein includes depositing a spacer layer on an NFT layer of the transducer head, forming an etch stop layer on a spacer layer of a transducer, depositing a cladding layer on the etch stop layer, and milling the cladding layer at a... Agent:

20140254337 - Generating surface plasmons using electrical current: A device comprises a near field transducer (NFT) and electrodes configured to at least one of generate or enhance surface plasmons in the NFT by passing electrical current through a portion of the NFT.... Agent: Seagate Technology LLC

20140254338 - Nanoimprint lithography for thin film heads: Nanoimprint lithography can be used in a variety of ways to improve resolution, pattern fidelity and symmetry of microelectronic structures for thin film head manufacturing. For example, write poles, readers, and near-field transducers can be manufactured with tighter tolerances that improve the performance of the microelectronic structures. Further, entire bars... Agent: Seagate Technology LLC

20140254336 - Near-field transducer with flare peg: Disclosed are plasmonic near-field transducers that are useful in heat-assisted magnetic recording. The disclosed plasmonic near-field transducers have an enlarged region and a flared region. In some embodiments the disclosed plasmonic near-field transducer can also include a peg region. The flared region can act as a heat sink and can... Agent: Seagate Technology LLC

20140254335 - Waveguide with phase shifting portions: An apparatus includes a plasmonic transducer with first and second oppositely disposed outer edges. A waveguide is configured to receive light from a light source, the waveguide have first and second portions that deliver first and second portions of the light to the first and second edges of the plasmonic... Agent: Seagate Technology LLC

20140254340 - Topographic feedforward system: A control mechanism may control the height and/or position of a read/write head configured to interact with a rotating information storage surface. A computation unit may compute a detected topography from gap measurements using a dynamic filter including a model of read/write head dynamics. A sensor may detect gap measurements... Agent:

20140254341 - Friction force measurement assembly and method: The application discloses a sensor device to measure friction force at a head-media interface. As disclosed, the sensor device has a transducer element oriented to provide an electrical output responsive to force or strain imparted to the transducer element along an in-plane axis. Sensor circuitry is coupled to the transducer... Agent: Seagate Technology LLC

20140254342 - Spinstand with motor having fluid dynamic bearing: Provided herein is an apparatus, including a spinstand configured to position a disk in a testing orientation and a motor coupled to the spinstand, configured to rotate the disk. The motor comprises a fluid dynamic bearing.... Agent: Seagate Technology LLC

20140254344 - Contact detection: A method of detecting a contact between a transducing head and a storage medium is provided. The method applies an input signal, having a select power level and known frequency, to an actuator for actuating the head. An output signal is obtained in response to the input signal. At least... Agent: Seagate Technology LLC

20140254343 - Peer to peer vibration mitigation: A system for peer-to-peer vibration mitigation in a distributing computing system includes a secondary communication interface over which chassis management electronics (e.g., a chassis-level controller) and/or system storage nodes may initiate communications to in order to affect system changes that may decrease vibration-related performance degradation in the system.... Agent: Seagate Technology LLC

20140254345 - Objective lens, optical head, optical disk device, and information processing device: Assuming that third-order coma aberration per unit angle generated by tilt of BD (60) in recording or reproducing information on or from BD (60) is CMDbd, third-order coma aberration per unit angle generated by tilt of CD (80) in recording or reproducing information on or from CD (80) is CMDcd,... Agent:

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