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Dynamic magnetic information storage or retrieval December patent applications/inventions, industry category 12/11

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.
12/29/2011 > 15 patent applications in 11 patent subcategories.

20110317299 - Magnetic recording medium and disk device: According to one embodiment, a magnetic recording medium on which servo data is recorded by magnetic transfer recording, the medium includes a data recording area in which data is recorded on a plurality of data tracks extending in form of concentric circles, and a servo area comprising the servo data... Agent: Kabushiki Kaisha Toshiba

20110317300 - Magnetic transfer master substrate, magnetic transfer method and method of manufacturing the substrate: A magnetic transfer master substrate may have a ferromagnet pattern corresponding to a signal array. The substrate may include a non-magnetic base having depressed portions, formed on a surface thereof, which correspond to the signal array. A ferromagnet may be disposed in the depressed portions and includes a portion protruding... Agent: Fuji Electric Device Technology Co., Ltd.

20110317302 - Disk storage apparatus and method of measuring flying height of a head: According to one embodiment, a disk storage apparatus includes a read module, a measuring module, and a compensating module. The read module is configured to read first and second signals recorded on a disk, from which to measure the flying height of a head. The measuring module is configured to... Agent: Kabushiki Kaisha Toshiba

20110317303 - Magnetic disk drive and method for adjusting parameter in the same: According to one embodiment, a magnetic disk drive includes a parameter management table, a parameter adjustment module and an interpolation module. The parameter management table stores a parameter used to write or read data to or from a disk in the parameter management table in association with each of a... Agent: Kabushiki Kaisha Toshiba

20110317301 - Nonlinearity measurement apparatus, nonlinearity measurement method, and magnetic recording and reproduction apparatus: According to one embodiment, a non-linearity measurement apparatus includes a first measurement module, a second measurement module, and a calculation module. The first measurement module is configured to measure a component of a first higher harmonic from a reproduced signal of a first signal recorded on a magnetic recording medium.... Agent: Kabushiki Kaisha Toshiba

20110317304 - Magnetic recording/reproduction device and magnetic recording medium: Disclosed is a magnetic recording/reproduction device 2 including: a recording/reproduction head 7; and a recording/reproduction head 7 for detecting a leakage magnetic field of each of the plurality of magnetic recording cells 1 so as to reproduce information, the recording/reproduction head 7 carrying out the recording on the magnetic recording... Agent: Sharp Kabushiki Kaisha

20110317305 - Certifying a data storage medium: An apparatus and associated method related to reading from memory an indicia that is dedicated to identifying a first portion less than an entirety of an addressable storage medium, the first portion having previously been subjected to a certification scrutiny. In relation to results of the reading, a second portion... Agent: Spectra Logic Corporation

20110317306 - Magnetic recording apparatus, magnetic recording method, and magnetic recording medium: According to one embodiment, there is provided a magnetic recording medium which includes a plurality of magnetic dot rows in which there is a phase shift between adjacent dot rows, and dots are arranged in a zigzag manner in a predetermined number of dot rows which are simultaneously read.... Agent: Kabushiki Kaisha Toshiba

20110317308 - Magnetic recording apparatus: According to one embodiment, a magnetic recording apparatus includes a magnetic recording medium for perpendicular magnetic recording system, a magnetic head including a read head to read data from the magnetic recording medium, and an actuator to actuate the magnetic head on the magnetic recording medium. The magnetic recording medium... Agent: Kabushiki Kaisha Toshiba

20110317307 - Motor and recording disc driving device: There are provided a motor and a recording disc driving device, which may minimize a frictional force between a shaft and a bearing assembly to enable a rotor to be readily rotated at the time of initial movement of the rotor. The motor may include: a bearing assembly including a... Agent: Samsung Electro-mechanics Co., Ltd.

20110317310 - Base structure for device and hard disk drive having the same: There are provided a base structure for a device such as a hard disk drive and a hard disk drive having the same. The base structure includes: a base body including components mounted thereon and made of a non-aluminum material; and a base reinforcing part attached to the base body... Agent: Samsung Electro-mechanics Co., Ltd.

20110317309 - Suspension assembly having a microactuator bonded to a flexure: Disclosed is a suspension assembly for a disk drive that includes: a mounting plate having a top-side and a bottom-side; a microactuator mounting structure formed in the mounting plate; a microactuator mounted in the microactuator mounting structure in which the microactuator has a top-side and a bottom-side; and a flexure... Agent: Western Digital Technologies, Inc.

20110317311 - Head and disk drive with the same: According to one embodiment, a head includes a slider including a supporting surface opposed to a surface of a rotatable recording medium, and a head section on the slider, configured to record data on and reproduce data from the recording medium. The supporting surface includes a negative-pressure cavity in the... Agent: Kabushiki Kaisha Toshiba

20110317312 - Flexure and method of forming wiring part of flexure: A flexure includes a metal substrate whose front end supports a slider and a wiring part having a base insulating layer and a conductor layer formed on the base insulating layer. The wiring part includes a normal wiring part that is on the metal substrate and an aerial wiring part... Agent: Nhk Spring Co., Ltd.

20110317313 - Magnetoresistive element and thin film magnetic head: An orthogonalizing bias function part formed at a rear part of an MR part in a DFL structure influencing a substantial orthogonalizing function of first and second ferromagnetic layers in respective magnetization directions thereof, non-magnetic metal layers formed to abut both ends of the MR part in a width direction... Agent: Tdk Corporation

12/22/2011 > 9 patent applications in 9 patent subcategories.

20110310505 - Magnetic storage device capable of recording drop height and electronic device using the same: A magnetic storage device capable of recording a drop height and an electronic device using the same are presented. The magnetic storage device includes: a G-sensor, installed in the magnetic storage device, for outputting a first trigger signal when the magnetic storage device starts to drop and outputting a second... Agent: Getac Technology Corporation

20110310506 - Magnetic disk device and head position control method: According to one embodiment, a magnetic disk device includes a magnetic disk, a magnetic head, a position error signal output module, a vibration pattern detector, an adder, and a head positioning controller. The magnetic head moves over the magnetic disk. The position error signal output module outputs a position error... Agent: Kabushiki Kaisha Toshiba

20110310507 - Recording device and method for positioning electromagnetic transducer: According to one embodiment, a recording device comprises: a recording medium, an arm, a positioning module, a self-servo write clock generator, and an on-track module. The positioning module positions the arm at a position at which the electromagnetic transducer detects a rotational synchronization component of an intermediate pattern comprised in... Agent: Kabushiki Kaisha Toshiba

20110310508 - Magnetic recording/reproducing apparatus, method of controlling same, method of inspecting magnetic recording medium, and process for producing magnetic recording medium: A method for moving magnetic heads in a magnetic recording/reproducing apparatus, which comprises the steps of writing high-frequency signals in the magnetic recording/reproducing tracks; and then, either (i) conducting DC erasing or AC erasing to inspect extra pulse signals reproduced from the erased tracks, or (ii) inspecting concurrently occurring signals... Agent: Showa Denko K.k.

20110310509 - Hermetically sealing a hard disk drive: A HDD comprising an internal base plate comprising a porous material and configured for attachment of internal components of the HDD, an external hermetic base plate comprising a non-porous material and configured to hermetically seal the HDD, an external attachment base plate comprising fastening features and an external hermetic cover... Agent:

20110310510 - Perpendicular magnetic write head and magnetic recording device: A main magnetic-pole layer is provided with, at the tip end portion thereof, a trailing shied on the trailing side via a non-magnetic gap layer, and the non-magnetic gap layer includes therein one or more magnetic layers. This magnetic layer appropriately controls the amount of magnetic fluxes coming from the... Agent: Tdk Corporation

20110310511 - Apparatus including modified write pole tip: An apparatus that includes a write element including a write element tip having a leading edge, a trailing edge, and first and second side edges connecting the leading edge to the trailing edge, wherein the trailing edge is non-planar; a trailing shield proximate the trailing edge of the write element;... Agent: Seagate Technology LLC

20110310512 - Thin film magnetic head and magnetic disk device: A thin film magnetic head has a plurality of electrode terminals formed on substantially the same surface as the head formation surface on which magnetic head element is laminated. The plurality of electrode terminals is arranged in an array near and along the second side of the head formation surface... Agent: Tdk Corporation

20110310513 - Auxiliary magnetoresistive shield: An apparatus includes a magnetoresistive read element, first and second primary shields, and an auxiliary shield. The magnetoresistive read element is located between the first and the second primary shields, and the auxiliary shield is located between the magnetoresistive read element and the first primary shield. In another embodiment, the... Agent: Seagate Technology LLC

12/15/2011 > 5 patent applications in 3 patent subcategories.

20110304936 - Data demodulating device, data demodulating method, and program: A data demodulating device which converts an RLL code string obtained by converting a data string in which information bits including a special bit having a value representing the content of a signal process at the time of demodulating data within a target section included in an input signal are... Agent: Sony Corporation

20110304935 - Floating guard band for shingle magnetic recording: A hard disk drive that includes a disk with data written onto a plurality of tracks, a spindle motor that rotates the disk, and a head that is coupled to the disk. The disk drive also includes a circuit that writes data onto a first writable shingle band of tracks... Agent: Samsung Electronics Co., Ltd.

20110304937 - Motor and recording disc drive apparatus: Disclosed are a motor and a recording disc drive apparatus that can prevent a fluid in a fluid dynamic bearing from being discharged to the outside. A motor according to an aspect of the invention may include: a shaft; a sleeve having a cylindrical shape and supporting the shaft such... Agent: Samsung Electro-mechanics Co., Ltd.

20110304938 - Rolling bearing, bearing device and information recording and reproducing device: A rolling bearing provided with a shield plate which hardly induces the irregular deformation of an outer ring without increasing a cost is provided. A rolling bearing includes an inner ring and an outer ring; a plurality of rolling bodies which are held between the inner ring and the outer... Agent:

20110304939 - Magnetic recording device, magnetic recording method and magnetic recording medium for shingle write scheme: This magnetic recording device is provided with a magnetic write head having a magnetic pole, and a magnetic recording medium having a plurality of data recording blocks. Each of the data recording blocks is formed with a plurality of write tracks and separated, in a write track width direction, from... Agent: Tdk Corporation

12/08/2011 > 12 patent applications in 8 patent subcategories.

20110299188 - Magnetic head slider and magnetic disk drive: A magnetic head slider having a thermal microactuator capable of efficiently transmitting thermal expansion displacement in the vicinity of a heating element to the region of a read/write element and thereby enabling high-speed displacement response is realized. The magnetic head slider comprises a slider substrate and a thin film stack... Agent: Hitachi, Ltd.

20110299187 - Magnetic head with protective layer and a protective film removal method for the magnetic head: m

20110299189 - Active head slider having piezoelectric and thermal actuators: An active head slider for a use in a Hard Disk drive having first and second actuators. The first actuator deforming a portion of a slider body that includes a read/write head to reduce the flying height of the portion over a disk. The second actuator forming a protrusion in... Agent: Hitachi Asia Limited

20110299190 - Detecting touch down and/or assessing quality in a hard disk drive: This application discloses a hard disk drive and a control circuit that are configured to determine touchdown by determining the SAGC for a track, removing the repeatable component of the SAGC to create the non-repeatable component and determining an indication of clearance irregularity and/or touch down when the standard deviation... Agent:

20110299191 - Electrical current as probe for modulation at head-disk interface: A system and method for measuring the modulation between a magnetic head and a magnetic storage medium, such as a disk, is disclosed. A magnetic read/write head is positioned above a magnetic storage medium at a given flying height. The magnetic read/write head reads a signal from the magnetic storage... Agent: Sae Magnetics (hk) Ltd.

20110299192 - Magnetic recording head and magnetic recording apparatus: An example magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic... Agent: Kabushiki Kaisha Toshiba

20110299193 - Fluid dynamic pressure bearing device, spindle motor and disk drive apparatus: A fluid dynamic bearing mechanism includes a stationary shaft, a sleeve portion arranged to rotate with respect to the shaft, and a thrust portion including an upper end surface arranged oppose to a lower end surface of the sleeve portion. An inside surface of the thrust portion includes an inside... Agent: Nidec Corporation

20110299194 - Method of manufacturing magnetic recording medium, and magnetic recording medium: f

20110299195 - Row bar and wafer: A row bar having a plurality of slider forming areas collocated and slider cutting areas formed between two adjacent slider forming areas respectively, the slider forming areas are eventually cut into individual sliders along the slider cutting areas respectively, each slider having a pole tip embedded therein and an air... Agent: Sae Magnetics (h.k.) Ltd.

20110299196 - Suspension gimbal designs with better dynamic performances: Gimbal designs are provided that minimize adverse dynamic performance of a HDD suspension, particularly subsequent to head-disk-interface (HDI) interactions. The improvement of operational performance can be seen in graphical representations of the vibrational modes of a gimbal mounted slider subsequent to such HDI interactions. Each gimbal design includes a ramp... Agent: Sae Magnetics (hk) Ltd.

20110299197 - Hard disk drive: In a hard disk drive, for the purpose of solving a problem that a mass of the tip of a VCM actuator increases, a primary resonance frequency lowers and a control band lowers in a case where a balance driving mechanism which damps a vibration during the driving of a... Agent: Hitachi, Ltd.

20110299198 - Magnetic recording medium, magnetic signal reproduction system and magnetic signal reproducing method: The present invention relates to a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support, wherein the magnetic layer has a thickness δ ranging from 10 to 80 nm, a product, Mrδ, of a residual magnetization Mr of the magnetic layer... Agent: Fujifilm Corporation

12/01/2011 > 20 patent applications in 18 patent subcategories.

20110292531 - Drive apparatus, library apparatus, and control method thereof: A magnetic tape apparatus performs at least one of data reading processing and data writing processing on LTO wound around a reel. The magnetic tape apparatus causes the reel to rotate and move the LTO to a position at which the data writing processing or the data reading processing can... Agent: Fujitsu Limited

20110292533 - Magnetic disk drive and method for rewriting data block: According to one embodiment, a magnetic disk includes a disk, a controller and an indicator module. The disk includes a plurality of data sectors. The controller is configured to control data rewrite for reading a first data block stored in the disk and writing a second data block corresponding to... Agent: Kabushiki Kaisha Toshiba

20110292532 - Storage device and method for controlling projection amount of head: According to one embodiment, a storage device includes a recording medium, a driving module, a head, a conductive body, a write-verify module, and a projection amount controller. A conductive body is mounted on the head, and changes a projection amount of the head by thermally expanding the head with heat... Agent: Kabushiki Kaisha Toshiba

20110292534 - Disk drive employing a preamp comprising read/write pass throughs for cascading integrated circuits: A disk drive is disclosed comprising a plurality of disk surfaces and a plurality of corresponding heads. The disk drive further comprises a preamp including a first integrated circuit coupled to a first plurality of the heads. The first integrated circuit comprises a first read-output for outputting a preamplified read... Agent: Western Digital Technologies, Inc.

20110292535 - Methods and apparatus for synchronization mark detection based on a position of an extreme distance metric: Methods and apparatus are provided for detection of a synchronization mark based on a position of an extreme distance metric. A synchronization mark is detected in a received signal by computing a distance metric between the received signal and an ideal version of the received signal expected when reading the... Agent:

20110292536 - Data write control apparatus and data write control method: According to one embodiment, a data write control apparatus includes a magnetic disk, a write controller, and a retry controller. The magnetic disk includes a track in which data is recorded in sector unit. The write controller is configured to execute control to write a sector data block to a... Agent: Kabushiki Kaisha Toshiba

20110292537 - 3-d self-focusing gap plasmon generator for tamr: A device for implementing thermally assisted magnetic recording, using a TE mode laser diode, and method for using it, are described. This device is shaped internally so as to provide three-dimensional self-focusing of plasmon radiation, thereby improving the coupling efficiency between the optical wave-guide and the plasmon generator as a... Agent: Headway Technologies, Inc.

20110292538 - Recording medium controller and method thereof: According to one embodiment, a recording medium controller includes a recording medium, an input module, a reading module, and a writing module. The recording medium includes a write area and an escape area. The write area includes track groups. Each of the track groups is a unit for writing data... Agent: Kabushiki Kaisha Toshiba

20110292539 - Magnetic tape driving apparatus, magnetic tape driving method: A magnetic tape driving apparatus, which does not cause damage to either a magnetic head or a magnetic tape when making transition of the magnetic tape from a stopped state to a running state, when making transition of the magnetic tape from a running state to a stopped state, or... Agent:

20110292540 - Systems and methods for protecting hard disk drives: A modified hard disk drive (HDD) state is provided. The modified HDD state corresponds to a state wherein the heads of a hard disk drive assembly are parked as a baseline setting, but permitted to float over the platters for completing requests on a limited basis. This prioritizes HHD protection... Agent:

20110292541 - Disk-enclosure cover for low-profile, hard-disk drive: A disk-enclosure cover for a low-profile, hard-disk drive (HDD). The disk-enclosure cover includes a substantially flat, plate-like portion that includes a periphery, and a peripheral flange that is disposed at the periphery. The peripheral flange includes a recessed portion that is configured to be recessed from a SATA connector in... Agent:

20110292542 - Hard disk drive device: Provided is a hard disk drive device that can be formed in a small size, which is capable of maintaining the humidity inside the device to the initial manufacture humidity for a long term and capable of adjusting the difference between the pressures of the inside and outside the device.... Agent:

20110292543 - Head gimbal assembly and disk drive with the same: According to one embodiment, a head gimbal assembly includes a suspension includes a load beam and a gimbal, a slider includes a head and mounted on the gimbal, a gap portion defined between the gimbal and the slider, in an area where the gimbal and an air inflow end of... Agent: Kabushiki Kaisha Toshiba

20110292544 - Head ic and magnetic disk apparatus having microwave assistance function: According to one embodiment, it is determined whether a STOAR element which performs microwave assistance for a magnetic disk apparatus is made to oscillate properly. When the STOAR element is oscillating when a current bias is applied, the resistance of the element increases. Therefore, in a head IC which outputs... Agent: Kabushiki Kaisha Toshiba

20110292545 - Magnetic head and magnetic disk drive to be used for shingled recording method: In a magnetic head to be used for a shingled recording method, degradation of a signal resolution and a decrease in a signal-to-noise ratio which are caused by an asymmetrical inter-bit transition curvature are prevented, and a low bit error rate is realized. A magnetic head includes a recording head... Agent: Hitachi, Ltd.

20110292546 - Timing track for master template substrate: A patterned recording media is formed from a master template that includes a data area and a timing track area having a final timing track. In order to form the final timing track, a first timing track is etched into master template and tested for accuracy by comparing the angular... Agent: Seagate Technology LLC

20110292547 - Magnetic disc apparatus: A micro actuator for two-stage actuator, which serves to position a magnetic disc apparatus, according to the invention comprises thermal actuators formed from a thin film resistance to generate a high force and arranged on both sides of a slider, and a parallel flat plate spring for driving the slider... Agent:

20110292548 - Head gimbal assemblies with windage diversion features: A head gimbal assembly includes windage diversion structures that can comprise a base plate attached to the head gimbal assembly, a load beam, an actuator arm connected to the load beam, and a slider attached to the load beam. The base plate further comprises a grooved or channel portion that... Agent: Seagate Technology LLC

20110292549 - Wiring structure for head suspension: A wiring structure for a head suspension is provided. The head suspension has a head to write and read information to and from a recording medium, a load beam to apply load onto the head, a device arranged on the head and operating on low-frequency signals to achieve a function... Agent: Nhk Spring Co., Ltd.

20110292550 - Magnetic head suspension: First and second piezoelectric element overlapped portions of an insulating layer of a flexure part is formed with first and second connecting openings, respectively. There are provided on an upper surface of the insulating layer, first and second lower conductive adhesive agents that electrically connect lower electrode layers of first... Agent: Suncall Corporation

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