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Dynamic magnetic information storage or retrieval February patent applications/inventions, industry category 02/12

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.
  
02/23/2012 > 6 patent applications in 4 patent subcategories. patent applications/inventions, industry category

20120044594 - Method and system for distinguishing spatial and thermal defects on perpendicular media: Disclosed are a method and system for distinguishing spatial and thermal defects on perpendicular media. The magnetic domains of the perpendicular media are oriented to have a first polarity, scanned using a read head, oriented to have a second polarity and scanned again. The signals from the read head are... Agent: Mra Tek, LLC

20120044593 - Temperature induced head skew: One way to minimize full DC head-skew re-calibrations rendered necessary by changes in storage media drive operating temperature is to compensate for temperature-induced DC head-skew using a known relationship between temperature-induced DC head-skew and storage media operating temperature. More specifically, a first DC head-skew is measured at a first arbitrary... Agent: Seagate Technology LLC

20120044595 - Perpendicular magnetic recording medium (pmrm) and magnetic storage systems using the same: In one embodiment, a perpendicular magnetic recording medium (PMRM) includes a first interlayer comprising Ru or a Ru alloy, a second interlayer above the first interlayer comprising Ru or a Ru alloy, and a third interlayer formed between the first interlayer and the second interlayer that reduces an average cluster... Agent: Hitachi Global Storage Technologies Netherlands B.v.

20120044597 - Magnetic recording medium, information storage device, and method of manufacturing magnetic recording medium: A magnetic recording medium includes a magnetic recording layer. The magnetic recording layer includes a first magnetic layer formed as a pattern portion that is a data portion in a servo region, a second magnetic layer formed as a non-pattern portion that is magnetized to be antiparallel with a magnetization... Agent: Showa Denko K.k.

20120044596 - Method of producing magnetic recording medium and magnetic recording and reproducing apparatus: the method of producing a magnetic recording medium characterized by including, in this order: a step of forming a magnetic layer (2) on top of a non-magnetic substrate (1); a step of forming a mask layer (3) for forming a magnetic recording pattern on top of the magnetic layer (2);... Agent: Showa Denko K.k.

20120044598 - Writer shields with modified shapes for reduced flux shunting: A perpendicular magnetic recording (PMR) head is fabricated with a configuration of leading edge shields and trailing edge shields that reduce the leakage of flux between the main pole and the shields. The reduction of leakage is achieved by eliminating the sharp 90° corner between the backside surfaces of the... Agent: Headway Technologies, Inc.

  
02/16/2012 > 6 patent applications in 5 patent subcategories. patent applications/inventions, industry category

20120038997 - System for write fault protection in a hard disk drive: This invention relates to a system and method performed by a controller in a hard disc drive to generate a write fault signal. The system performs in the following manner. The system begins by receiving a sample of a position error signal. The system then generates a control signal from... Agent: Hitachi Asia Ltd.

20120038999 - Apparatus and method for receiving and positioning a read/write head to a disk for testing and method of removing a tested read/write head from a test apparatus: An apparatus for receiving and positioning a read/write head to a disk and related methods are disclosed. The apparatus includes: a deck; a spindle on the deck; a safety enclosure surrounding at least the spindle; and a movable carriage having at least one head receiving portion. The carriage is movable... Agent: Xyratex Technology Limited

20120038998 - Systems and methods for phase offset based spectral aliasing compensation: Various embodiments of the present invention provide systems and methods for phase offset based spectral aliasing compensation. For example, a circuit for spectral aliasing reduction is disclosed that includes a phase shift circuit operable to phase shift an analog input signal and to provide a phase shifted analog signal; a... Agent: Lsi Corporation

20120039000 - Magnetic storage device with means for supplying a beneficial vapor via a desiccant device: Approaches for desiccant device within an enclosure protecting sensitive electronic equipment. A hard-disk drive (HDD) may comprise a desiccant device that provides a source of a beneficial vapor, such as an antioxidant, a vapor corrosion inhibitor, or a colubricant, within an enclosure of the HDD. The desiccant device absorbs water... Agent:

20120039001 - Disk library apparatus: A disk library apparatus includes a magazine for housing a plurality of storage disks, a plurality of pallets each having a disk placing surface for placing a storage disk and which are arranged in the magazine so that pallets having different engaging claw shapes are adjacent to each other, and... Agent:

20120039002 - Tape cartridge formatted with increased data redundancy for testing and repair of a defective tape drive: A tape drive assembly for data storage on a magnetic tape includes a tape head, a cartridge receiver and a controller. The cartridge receiver selectively receives a cartridge having a test tape formatted at a predetermined location with standard drive compatible format with increased data redundancy enabling tape drives to... Agent: Saliba Technology Solutions, Inc.

  
02/09/2012 > 17 patent applications in 8 patent subcategories. patent applications/inventions, industry category

20120033318 - Planar slider test socket: The present application is directed to a slider supporting apparatus for flying a slider of a hard disk drive in the manufacturing process to provide electrical performance characteristics. The present invention discloses an integrated design including the electrical interconnect, the gimballing mechanism, the preload mechanism and the slider supporting mechanism... Agent:

20120033317 - Position error signal demodulation with target-based blending: In a disk drive, a method for servo burst-decoding demodulation that accommodates track pitch variation. Depending on the distance a read head is displaced from a read head target position, a target-based blending scheme, a position-based blending scheme, or a weighted combination of both is used to determine the position... Agent: Toshiba America Information Systems, Inc.

20120033316 - Systems and methods for format efficient calibration for servo data based harmonics calculation: Various embodiments of the present invention provide systems and methods for servo data based harmonics calculation. For example, a method for calculating harmonics is disclosed that includes: providing a data processing circuit; receiving a first data set derived from a data source during a servo data processing period; performing a... Agent: Lsi Corporation

20120033319 - Read path compensation for snr and signal transfer: A method and apparatus is provided for extending a read bandwidth and increasing a high-frequency signal-to-noise ratio (SNR) of a front-end of a read path of a hard disk drive (HDD) by introducing a high impedance section at the front-end of the read path. The high impedance section may mitigate... Agent:

20120033320 - Systems and methods for dynamic scaling in a read data processing system: Various embodiments of the present invention provide systems and methods for data processing. For example, a data processing system is disclosed that includes a decoder circuit providing a decoded output, and a dynamic scalar calculation circuit that determines a first dynamic scaling value and a second dynamic scaling value based... Agent:

20120033321 - Tape layout design for reliable ecc decoding: A method for physically laying out data on tape is disclosed herein. In one embodiment, such a method includes receiving a data set, wherein the data set includes S sub data sets (SDSs) of fixed size and each SDS includes N codeword interleaves (CWIs). The method further distributes the CWIs... Agent: International Business Machines Corporation

20120033322 - Disk drive track address encoded with a servo sector address: A servo sector address and a track address of a recording medium of a disk drive are encoded into a combined address value. The combined address value is stored in a combined address field that has fewer bits than the total bits required to uniquely encode the servo sector address... Agent: Toshiba America Information Systems, Inc.

20120033323 - Systems and methods for servo data based harmonics calculation: Various embodiments of the present invention provide systems and methods for servo data based harmonics calculation. For example, a circuit for determining harmonics is disclosed that includes an analog to digital conversion circuit that provides a series of digital samples corresponding to a pattern within a servo data region of... Agent: Lsi Corporation

20120033324 - Rotating body for fluid dynamic bearing capable of being thinned and being improved in rotational accuracy and method of producing the rotating body for fluid dynamic bearing: A rotating body for a fluid dynamic bearing used for rotating a recording disk that has been mounted therein include: a rotating shaft portion in which a cylindrical portion that serves as a rotating shaft and a protruding portion extended radially outward from one end of the cylindrical portion are... Agent: Alphana Technology Co., Ltd.

20120033325 - Spindle motor and storage disk drive: A dynamic pressure bearing is defined in a first gap between a shaft portion and a sleeve portion. An upper seal portion extending upward and a lower seal portion extending downward are arranged radially outward of the dynamic pressure bearing. Each of the upper seal portion and the lower seal... Agent: Nidec Corporation

20120033326 - Spindle motor and storage disk drive: A spindle motor includes a stationary portion and a rotating portion. The stationary portion preferably includes a shaft portion, a lower plate portion, and an outer tubular portion. The rotating portion preferably includes an inner tubular portion and a flange portion including a communicating hole. An upper seal portion is... Agent: Nidec Corporation

20120033327 - Spindle motor and storage disk drive: A motor includes a stationary portion and a rotating portion. The rotating portion includes a sleeve portion. The sleeve portion includes a communicating hole. A dynamic pressure bearing is defined in a first gap between a shaft portion and the sleeve portion. An upper seal portion and a lower seal... Agent: Nidec Corporation

20120033328 - Spindle motor and storage disk drive: A spindle motor includes a stationary portion and a rotating portion. The stationary portion preferably includes a shaft portion, an upper thrust portion, and an outer tubular portion. The rotating portion preferably includes an inner tubular portion, a flange portion, an upper hub annular portion, and a lower hub annular... Agent: Nidec Corporation

20120033329 - Spindle motor and storage disk drive: In a motor, an annular radially extending gap is defined between an outer annular surface and a lower surface of an annular cover portion. The radially extending gap has an axial width smaller than a maximum width of an upper seal portion defined between an outer circumferential surface of an... Agent: Nidec Corporation

20120033330 - Spindle motor and storage disk drive: In a motor, a stationary portion includes a shaft portion and an upper thrust portion arranged to define a single continuous monolithic member together with the shaft portion, and arranged to extend radially outward from an upper portion of the shaft portion. The shaft portion includes a female screw portion... Agent: Nidec Corporation

20120033331 - Nanocomposites for ultra high density information storage, devices including the same, and methods of making the same: A nanocomposite article that includes a single-crystal or single-crystal-like substrate and heteroepitaxial, phase-separated layer supported by a surface of the substrate and a method of making the same are described. The heteroepitaxial layer can include a continuous, non-magnetic, crystalline, matrix phase, and an ordered, magnetic magnetic phase disposed within the... Agent: Ut-battelle, LLC

20120033332 - Low viscosity electrostatic discharge (esd) dissipating adhesive: In one embodiment, a system includes a cable comprising a plurality of leads and an ESD dissipating adhesive coupled to the plurality of leads in a coverage area for providing ESD protection to an element of an electronic device. The ESD adhesive comprises a mixture of a polymeric thin film... Agent: International Business Machines Corporation

  
02/02/2012 > 11 patent applications in 7 patent subcategories. patent applications/inventions, industry category

20120026621 - Magnetic disk apparatus and slider control method: In one embodiment, there is provided a magnetic disk apparatus. The apparatus includes: a recording medium including a recording surface for recording information; a slider including a head configured to write information to the recording medium or read information from the recording medium; and a controller configured to control moving... Agent: Kabushiki Kaisha Toshiba

20120026622 - Method and apparatus for inspecting magnetic disk: In order to enable a highly-sensitive certifying test by detecting a signal with a high S/N ratio while controlling the glide height of a magnetic head to be optimized at the time of the certifying test, a method for inspecting a magnetic disk by conducting the certifying test for the... Agent: Hitachi High-technologies Corporation

20120026620 - Methods and apparatus for gain estimation using servo data with improved bias correction: Methods and apparatus are provided for gain estimation using servo data with improved bias correction. The gain is estimated using a preamble in a servo sector by obtaining a first gain estimate using a first gain estimation algorithm (such as a Zero Gain Start Algorithm) and a first portion of... Agent:

20120026619 - Write performance monitor in a storage device: An apparatus comprising a write circuit, a processing circuit and a monitor circuit. The write circuit may be configured to generate one or more write control signals in response to an input signal. The processing circuit may be configured to generate an intermediate control signal in response to (i) the... Agent:

20120026623 - Dibit extraction for estimation of channel parameters: In one embodiment, a storage-device-implemented method for estimating one or more channel parameters of a storage device including a read channel and a storage medium with a bit sequence stored on the storage medium. The method includes: (a) the storage device reading at least a portion of the bit sequence... Agent: Lsi Corporation

20120026624 - Maximizing performance under a power envelope constraint: The present invention is a method of maximizing drive performance under any power constraint. In one embodiment, the method includes actively adjusting a seek power draw based on a comparison of real-time calculations of average seek power to a target power threshold.... Agent: Seagate Technology LLC

20120026625 - Laminated contact pad: A contact pad includes a first layer of material with a first yield strength and a second layer of material with a second yield strength is laminated to the first layer. A third yield strength of the laminated composite of the first layer and the second layer exceeds the first... Agent: Seagate Technology LLC

20120026626 - Apparatus including a perpendicular magnetic recording layer having a convex magnetic anisotropy profile: An apparatus may include a first magnetic layer, a first exchange break layer formed on the first magnetic layer, a second magnetic layer formed on the first exchange break layer, a second exchange break layer formed on the second magnetic layer, and a third magnetic layer formed on the second... Agent: Seagate Technology LLC

20120026627 - Multi-layer stack adjacent to granular layer: In some embodiments, an article comprising a first magnetic recording layer, the first magnetic recording layer including a granular layer having a first magnetic anisotropy and a multi-layer stack adjacent the granular layer, the multi-layer stack comprising one or more substantially magnetic film layers alternating with one or more polarization... Agent: Seagate Technology LLC

20120026628 - Perpendicular magnetic write head having a trailing wrap-around magnetic shield magnetically biased in a cross track direction: A perpendicular magnetic write head having improved Bit Error Rate (BER), Adjacent Track Interference (ATI) and Far Track Interference (FTI). The write head includes a write pole and a trailing wrap-around magnetic shield. A permanent magnetic is located at either outer side of the shield. These magnets are magnetized to... Agent:

20120026629 - Magnetic head, manufacturing method therefor, head assembly, and magnetic recording/reproducing apparatus: The present invention relates to a magnetic head, a manufacturing method therefor, a head assembly, and a magnetic recording/reproducing apparatus. According to the present invention, it includes a magnetic pole layer, a non-magnetic layer, a trailing gap layer, and a trailing shield layer. The magnetic pole layer has a pole... Agent: Tdk Corporation

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