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Dynamic magnetic information storage or retrieval August inventions list 08/11

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.
08/25/2011 > patent applications in patent subcategories.

20110205654 - Control apparatus, nonvolatile storage apparatus and data initialization method: A control apparatus for controlling initialization of data stored in a storage unit in response to receipt of an initialization instruction from a host system, includes (a) a register unit that stores inversion bit information indicating a plurality of bits to be inverted in data readout process, (b) a data... Agent: Fujitsu Limited

20110205653 - Systems and methods for data recovery: Various embodiments of the present invention provide systems and methods for identifying a reproducible location on a storage medium. As an example, a circuit is described that include a media defect detector and an anchor fixing circuit. The media defect detector is operable to identify a media defect, and the... Agent: Lsi Corporation

20110205655 - Magnetic recording head, magnetic head assembly, and magnetic recording apparatus: According to one embodiment, a magnetic recording head includes a main magnetic pole, a shield, and a stacked structure body. The shield is provided to oppose the main magnetic pole. The stacked structure body is provided between the main magnetic pole and the shield. The stacked structure body includes a... Agent: Kabushiki Kaisha Toshiba

20110205656 - Servo pattern architecture and method using same to improve lpos encoding efficiency: A sequential data storage medium, such as for example and without limitation a magnetic tape, comprising a sequence of plurality of servo patterns encoded therein, which provide lateral position information and LPOS information. Each servo pattern comprises a first burst comprising a first pulse, a second pulse, a third pulse,... Agent: International Business Machines Corporation

20110205657 - Synchronization of symmetric timing based servo bursts: Timing based servo bursts of servo frames, in which the frames are arranged to be symmetric with the same number of servo stripes in each burst of a frame, are synchronized by shifting selected bits. For example, servo frames are arranged with four servo bursts with an equal number of... Agent: International Business Machines Corporation

20110205658 - Automatically detecting discrepancies between storage subsystem alignments: A computer-implemented method and apparatus for detecting misalignment in a data storage stack by opening a first storage layer in the data storage stack, performing a plurality of accesses of the first storage layer, each of the plurality of accesses starting at a different offset, and determining an optimal offset... Agent: Red Hat, Inc.

20110205659 - Servo writer and method for manufacturing magnetic tape with servo signal written thereon: In a servo writer, a write signal generator circuit is configured to output a signal for writing a servo signal to a servo write head disposed to allow a magnetic tape to slidably contact therewith and configured to write the servo signal thereon, and a plurality of tape guides are... Agent: Fujifilm Corporation

20110205661 - Optical waveguide and thermal assist magnetic recording head therewith: An optical waveguide of the present invention is an optical waveguide in order to directly introduce light beams emitted from a light emitting element. In a core that is a waveguide through which light propagates, a concave part is formed that is a depression in a light incident end surface... Agent: Tdk Corporation

20110205660 - Spot size converter and thermal assist magnetic recording head therewith: A spot size converter according to the present invention is capable of shortening the waveguide length in the spot size converter and of promoting a size reduction of the optical waveguide itself because two cores having a taper portion are combined and those tapering angles are mutually aligned. Furthermore, spot... Agent: Tdk Corporation

20110205662 - Controlling an electric motor by dynamic switching: An apparatus for controlling an electric motor is provided. A plurality of switches is provided for controlling a direction of current through motor coils of the electric motor. A brushless motor control circuit is connected to each of the plurality of switches. Responsive to a request to adjust one of... Agent: International Business Machines Corporation

20110205663 - Method of producing magnetic storage medium, magnetic storage medium and information storage device: It is an object to produce a magnetic storage medium of a high recording density by a production method that does not impair mass productivity, and a magnetic storage medium 10 is produced by a production method including: a magnetic-film forming step of forming a magnetic film 61 on a... Agent: Ulvac, Inc.

20110205664 - Information storing device and method for controlling same to record/reproduce information by selecting one of working modes: An information storing device and an information processing device having a memory for registering a plurality of working modes at recording/reproduction and a switching circuit for selecting one of the plurality of working modes, which select the optimum working mode automatically or by an instruction of an operator according to... Agent: Hitachi Global Storage Technologies Japan, Ltd.

20110205665 - Covalently bound monolayer for a protective carbon overcoat: A magnetic data storage medium may include a substrate, a magnetic recording layer, a protective carbon overcoat, and a monolayer covalently bound to carbon atoms adjacent a surface of the protective carbon overcoat. According to this aspect of the disclosure, the monolayer comprises at least one of hydrogen, fluorine, nitrogen,... Agent: Seagate Technology LLC

20110205666 - Magnetic sensor, magnetic detector, and magnetic head: A magnetic sensor comprises a channel, a ferromagnetic body and first and second reference electrodes on the channel, a magnetic shield covering a part of the channel opposing the ferromagnetic body, and an insulating film disposed between the channel and the magnetic shield, while the magnetic shield has a through-hole... Agent: Tdk Corporation

20110205667 - Magnetic recording head and magnetic recording/reproducing apparatus using the same: A magnetic recording head includes a magnetic pole, a spin torque oscillator, a first shield and a second shield. The magnetic pole has an air-bearing surface. The spin torque oscillator is provided so that a first side of the spin torque oscillator faces the magnetic pole in a first direction... Agent: Kabushiki Kaisha Toshiba

20110205668 - Magnetic recording medium and manufacturing method thereof: A magnetic recording medium comprises a data region for recording data and a servo region that is disposed adjacent to the data region and has recorded information for controlling a magnetic head. The data region has a pattern of dots separated from each other by grooves or nonmagnetic material. The... Agent: Fuji Electric Device Technology Co., Ltd.

20110205669 - Method for manufacturing magneto-resistance effect element, magnetic head assembly, and magnetic recording and reproducing apparatus: According to one embodiment, a method for manufacturing a magneto-resistance effect element is disclosed. The element has first and second magnetic layers, and an intermediate layer provided between the first and second magnetic layers. The intermediate layer has an insulating layer and a conductive portion penetrating through the insulating layer.... Agent: Tdk Corporation

20110205670 - Magnetic head slider locking apparatus: In the magnetic head slider locking apparatus according to the present invention, a spring portion takes a sandwiching posture in which a center region of a proximal-side engage portion sandwiches a magnetic head slider in a suspension longitudinal direction in cooperation with a distal-side engage portion when an operational force... Agent: Suncall Corporation

20110205671 - Magnetic recording head with notched shield: A magnetic recording head includes a magnetic recording write element including a main pole. The main pole has a leading edge and an opposing trailing edge and a first side surface and a second side surface separating the leading edge from the trailing edge. A first side magnetic shield is... Agent: Seagate Technology LLC

08/18/2011 > patent applications in patent subcategories.

20110199699 - Frequency-based approach for detection and classification of hard-disc defect regions: In a hard-disc drive read channel, frequency-based measures are generated at two different data frequencies (e.g., 2T and DC) by applying a transform, such as a discrete Fourier transform (DFT), to signal values, such as ADC or equalizer output values, corresponding to, e.g., a 2T data pattern stored on the... Agent: Lsi Corporation

20110199700 - Process for producing magnetic recording medium and magnetic recording and reproducing device: A process for producing a magnetic recording medium which can increase significantly yield and productivity is provided. Such a process for producing a magnetic recording medium includes a resist layer forming step which includes an immersing step of immersing a part of a non-magnetic substrate 31 in a resist solution... Agent: Showa Denko K.k.

20110199702 - Locating a head element of a tape storage device using servo information in a data track: To locate an access head element of a head assembly for a tape storage device, a storage tape having a data track that contains servo information is provided. The data track further contains data. The servo information that is in the data track is used to determine a position of... Agent:

20110199703 - Magnetic-tape drive and magnetic-tape head compatible with multiple tape formats: Embodiments of the present invention are directed to the design and implementation of backward-compatible magnetic tape drives (102) that are read/write compatible with a current magnetic-tape format (1820) as well as one or more previous magnetic-tape formats (1802 and 1804). Embodiments of the present invention include read/write tape-head configurations (1902,... Agent:

20110199701 - Skew actuator to servo track zero reference: A servo detection system for detecting servo tracks of a longitudinal tape. In a read/write head, two servo read heads are spaced laterally on a first head module, and a servo read head is on a second head module spaced longitudinally from the first module. A method comprises initially sensing... Agent: International Business Machines Corporation

20110199704 - Abs with a lubrication control dam for hard disk drives: A method and apparatus for controlling lubrication in hard disk drives. Hard disk drives often include lubrication on the disks to protect the disks from incidental contact with the head slider. Embodiments of the invention include lubrication control surfaces or dams on the air bearing surface (ABS) of the head... Agent:

20110199705 - Disk drive actuator inertial latch with moment of inertia and magnetic attraction product relationship: According to one embodiment, a disk drive includes a carriage supporting a head configured to perform information processing for the recording medium, and a latch mechanism configured to latch and hold the carriage in a retracted position when an external force acts on the disk drive with the carriage being... Agent: Kabushiki Kaisha Toshiba

20110199706 - Production method of disk drive device for cleaning subassemblies and disk drive device produced by said production method: A production method of a disk drive device includes: an assembling process of assembling a subassembly by incorporating at least a bearing unit in a hub in a clean room; a pouring process of pouring a lubricant in the bearing unit; a cleaning-liquid discharging process of discharging a cleaning liquid... Agent: Alphana Technology Co., Ltd.

08/11/2011 > patent applications in patent subcategories.

20110194204 - Content dubbing system, content recording apparatus and content dubbing method: The content copying system pertaining to the present invention is a content copying system in which multiple devices (11-14) cooperate to copy content to a removable recording medium (31). The first device (11) comprises a writing unit for writing first management data which includes content identifiers (hash1˜hash4) to the removable... Agent:

20110194205 - Method and apparatus for managing defects of recording medium: A method of managing defects of a recording medium of a data storage device includes performing a quality test related to occurrence of errors for each data sector in the recording medium; classifying a quality of each data sector according to evaluation criteria corresponding to quality classifications based on the... Agent: Samsung Electronics Co., Ltd.

20110194207 - Method of producing magnetic storage medium, magnetic storage medium and information storage device: It is an object to provide a simple method capable of producing a magnetic storage medium, a magnetic storage medium and an information storage device which may be produced by a simple production method with a high recording density, and a magnetic disk is produced by a production method having:... Agent: Ulvac, Inc.

20110194206 - Power-supply unit, hard-disk drive, and switching method of the power-supply unit: A power-supply unit which comprises a transformer, a full bridge circuit consisting of four arm switches provided on a primary side of the transformer, a rectifier and smoothing circuit including two synchronous rectifier switches provided on a secondary side of the transformer, a choke coil, and a capacitor, an output... Agent: Hitachi, Ltd.

20110194208 - Slider, head gimbal assembly and disk drive unit with the same: A slider for a head gimbal assembly includes a trailing surface, a plurality of connection pads arranged on the trailing surface adapted for both bonding the slider to a suspension of the head gimbal assembly and testing the performance of the slider. At least a part of the connection pads... Agent: Sae Magnetics (h.k.) Ltd.

20110194209 - Magnetic recording head, head gimbal assembly, and disk drive unit with the same: A magnetic recording head includes a trailing surface and a plurality of bonding pads arranged on the trailing surface and in a row adapted for both bonding and testing. Each of the bonding pads has at least one side portion being coated with electrically conductive solder nonwettable coat to prevent... Agent: Sae Magnetics (h.k.) Ltd.

20110194210 - Actuator latch apparatus and hard disk drive having the same: Provided are an actuator latch apparatus and a hard disk drive (HDD) having the actuator latch apparatus. The HDD includes a spindle motor, a data storage disk which is installed on the spindle motor, an actuator which moves a read/write head to a desired position above the data storage disk,... Agent: Samsung Electronics Co., Ltd

20110194211 - Disk drive: According to one embodiment, a disk drive includes a rotatable carriage which supports a head configured to read information from a disk recording medium and to write data to the a disk recording medium, and a latch mechanism configured to latch and hold the carriage in a retracted position when... Agent: Kabushiki Kaisha Toshiba

20110194212 - Base member including two-step recesses and hard disk drive including the same: A base member including two-step recesses and a hard disk drive (HDD) including the same. The HDD includes a base member; a spindle motor installed in the base member; a data storage disk assembled to the spindle motor; and an actuator rotatably installed in the base member and for moving... Agent: Samsung Electronics Co., Ltd

20110194213 - Magnetic read head: In some examples, a system comprising a data storage member including a magnetic storage medium, the magnetic storage medium having a plurality of magnetic bit domains aligned on at least one data track, where a transition boundary between respective magnetic bit domains defines a transition curvature. The system may further... Agent: Seagate Technology LLC

08/04/2011 > patent applications in patent subcategories.

20110188141 - Data back-up method and apparatus using the same: A hard disk controller includes a track counter which counts the number of times each of a plurality of tracks included in each of a plurality of disks is accessed and a processing unit which compares each of a plurality of count values obtained by the counting performed by the... Agent: Samsung Electronics Co., Ltd.

20110188142 - Disc operation selection: A method of identifying a string or chain of efficient or “good enough” disc operations for processing (a pseudo optimal chain) is provided. A “pseudo optimal chain” comprises a string or chain of operations that, while not necessarily the optimal string or chain, provides an efficient sequence of operations that... Agent: Seagate Technology LLC

20110188143 - Method and its apparatus for inspecting a magnetic disk: In order to implement efficient read/write testing by firstly determining read/write test area-sampling positions based on position information relating to any defects detected during optical inspection, and then conducting read/write tests only upon areas neighboring the defects detected during the optical inspection, a magnetic disk to be inspected is retained... Agent: Hitachi High-technologies Corporation

20110188144 - Servo routine for track seeking in a hard disk drive and hard disk drive for performing the same: A method for controlling a hard disk drive, includes a track seeking servo routine in which seek time is measured in a mode of the routine after the trajectory mode, the measured seek time is compared with a predetermined period of time, and an alarm mode is induced when the... Agent: Samsung Electronics Co., Ltd.

20110188146 - Ic protection circuit, method for protecting ic, and apparatuses having the ic protection circuit: An electronic device includes a power supply line connected between a DC power supply and an integrated circuit, and a first electronic element and a second electronic element serially connected between the power supply line and ground. The second electronic element is open when the first electronic element is short-circuited... Agent: Samsung Electronics Co., Ltd.

20110188147 - Method adjusting gain of variable gain amplifier and apparatus using same: A method of adjusting gain of a variable gain amplifier of a read/write channel circuit includes loading a first VGA gain value that is read channel optimized, in a first register, loading a second VGA gain value that is adapted, in a second register, calculating a third VGA gain value... Agent: Samsung Electronics Co., Ltd.

20110188145 - Servo track writer and operating method: A method of operating a servo track writer includes writing a clock pattern signal to a magnetic recording medium of a head disk assembly, reading the clock pattern signal written to the magnetic recording medium and dividing a frequency of a read clock pattern signal, and supplying a clock pattern... Agent: Samsung Electronics Co., Ltd.

20110188148 - Tape library control apparatus and tape library control method: A tape library control apparatus includes a storage for storing configuration information, a diagnostic evaluator, and a command controller. A tape library apparatus includes may include a plurality of tape drives and a plurality of magnetic tapes which includes specific magnetic tapes assigned for respective pieces of data specified by... Agent: Fujitsu Limited

20110188150 - Disk drive with state-information data buffer: A hard-disk drive (HDD) is described. During operation of the HDD, measured internal temperatures in the HDD may be stored in a first table, and state information specifying operational states of the HDD associated with ranges of internal temperatures may be stored in a second table. Note that a given... Agent: Apple Inc.

20110188149 - Servo patterning compatible with planarization of patterned magnetic disks: Embodiments herein illustrate patterned servo data that allows the patterned disk to be planarized with a relatively simple planarization process. A magnetic disk, in this regard, includes a data region having a plurality of tracks. The magnetic disk also includes a plurality of servo bursts patterned in the magnetic disk... Agent:

20110188153 - Method of retaining a magnetically preloaded anti-rotation guide for a transducer: A transducer positioning apparatus is provided that supports a read/write head on a data storage machine and biases the head against rotation. The transducer positioning apparatus may comprise a base that includes a linear drive motor and a support frame to which the read/write head is secured. The support frame... Agent: Oracle America, Inc.

20110188152 - Servo patterning and writing compatible with planarization of patterned magnetic disks: Embodiments herein illustrate patterned servo data that is used to facilitate subsequent servo writing to a magnetic disk while allowing the patterned disk to be planarized with a relatively simple planarization process. One disk drive system includes a magnetic disk that is patterned with magnetic lands and nonmagnetic grooves. The... Agent:

20110188151 - Thin-film magnetic head having a magnetic pole formed of a plating film: A magnetic pole of a magnetic head includes a narrow and a wide portion, and is formed of a plating film. An electrode film forms the plating film, and is provided only under at least a part of the wide portion. A manufacturing method for the magnetic head includes: forming... Agent: Tdk Corporation

20110188154 - Magnetic disk device and control method thereof, and information processor: According to one embodiment, a magnetic disk device is configured to read data from and write data to a magnetic disk using a magnetic head and provided with a control module that controls initial operation of the magnetic disk device according to initial firmware. The magnetic disk device includes a... Agent: Kabushiki Kaisha Toshiba

20110188155 - Method of compensating for imbalance of hard disk drive, apparatus to perform compensation, and hard disk drive manufactured thereby: A method of compensating for an imbalance of a hard disk drive includes biasing a plurality of disks in one direction with respect to a rotational shaft of a spindle motor hub, measuring an amount of imbalance of the plurality of disks with respect to the rotational shaft of the... Agent: Samsung Electronics Co., Ltd

20110188156 - Shield design for magnetic recording head: A magnetic shield in which all domain patterns and orientations are stable and which are consistently repeated each time the shield is exposed to an initialization field, is disclosed. This is achieved by giving it a suitable shape which ensures that all closure domains can align themselves at a reduced... Agent:

20110188157 - Tmr device with novel free layer structure: A composite free layer having a FL1/insertion/FL2 configuration where a top surface of FL1 is treated with a weak plasma etch is disclosed for achieving enhanced dR/R while maintaining low RA, and low λ in TMR or GMR sensors. The weak plasma etch removes less than about 0.2 Angstroms of... Agent: Headway Technologies, Inc.

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