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| Number | Title | Issue Date |
| 8184389 | Sensor resonant frequency identification and filter tuning Methods of tuning a notch filter to remove resonant frequency components from an output signal of a vibration sensor. Some methods according to the invention include exciting the vibration sensor with an excitation signal including energy in a frequency band that ma... | 05/22/2012 |
| 8183654 | Static magnetic field assisted resistive sense element Apparatus and associated method for writing data to a non-volatile memory cell, such as spin-torque transfer random access memory (STRAM). In accordance with some embodiments, a resistive sense element (RSE) has a heat assist region, magnetic tunneling junction (MTJ... | 05/22/2012 |
| 8183653 | Magnetic tunnel junction having coherent tunneling structure A magnetic tunnel junction includes an amorphous ferromagnetic reference layer having a first reference layer side and an opposing second reference layer side. The first reference layer side has a greater concentration of boron than the second reference layer side. ... | 05/22/2012 |
| 8183126 | Patterning embedded control lines for vertically stacked semiconductor elements Various embodiments of the present invention are generally directed to an apparatus with embedded (bottom side) control lines for vertically stacked semiconductor elements, and a method for forming the same. In accordance with various embodiments, a first semiconduc... | 05/22/2012 |
| 8181348 | Shielding fluid reservoirs of fluid dynamic bearing motors In one example, a fluid dynamic bearing motor having a shield member is provided. In one example, the method includes disposing a first member and a second member for relative rotation about an axis of rotation. An annular shield member is attached to the first memb... | 05/22/2012 |
| 8179716 | Non-volatile programmable logic gates and adders Spin torque magnetic logic device having at least one input element and an output element. Current is applied through the input element(s), and the resulting resistance or voltage across the output element is measured. The input element(s) include a free layer and t... | 05/15/2012 |
| 8179712 | Non-volatile memory with metal-polymer bi-layer A resistive memory cell that includes a metal-polymer bi-layer proximate a CMOS gate. The memory cell has a substrate having a source contact connected to a source line and a drain contact connected to a drain line, a CMOS gate proximate the substrate electrically c... | 05/15/2012 |
| 8178864 | Asymmetric barrier diode A diode having a reference voltage electrode, a variable voltage electrode, and a diode material between the electrodes. The diode material is formed of at least one high-K dielectric material and has an asymmetric energy barrier between the reference voltage electr... | 05/15/2012 |
| 8177469 | Magnetic disk handling apparatus An apparatus and method for handling disks as part of a magnetic disk manufacturing process is provided. In one embodiment, during a drying process the disks are engaged at the inner diameter rather than the outer diameter to eliminate the formation of residue on th... | 05/15/2012 |
| 8169810 | Magnetic memory with asymmetric energy barrier A magnetic tunnel junction cell includes a ferromagnetic reference layer, a ferromagnetic free layer, and a non-magnetic barrier layer separating the ferromagnetic reference layer from the ferromagnetic free layer. The magnetic tunnel junction cell has an asymmetric... | 05/01/2012 |
| 8169748 | Damping member for a moveable flex circuit Method and apparatus for attenuating resonances in a flex circuit which interconnects a stationary element and a moveable element, such as a connector and a head stack assembly (HSA) in a data storage device. An intermediary portion of the flex circuit forms a dynam... | 05/01/2012 |
| 8164848 | Snubber for disc drive for prevention of user reported defects A disc drive snubber for protection of a disc drive disc from mechanical shock, the snubber positioned to limit the deflection of the disc in the operational mode, the position of the disc snubber determined in response to user reported defects. The snubber, positio... | 04/24/2012 |
| 8159856 | Bipolar select device for resistive sense memory A resistive sense memory apparatus includes a bipolar select device having a semiconductor substrate, a plurality of collector contacts disposed in a first side of the of the semiconductor substrate, an emitter contact layer disposed in a second side of the semicond... | 04/17/2012 |
| 8158964 | Schottky diode switch and memory units containing the same A switching element that includes a first semiconductor layer, the first semiconductor layer having a first portion and a second portion; a second semiconductor layer, the second semiconductor layer having a first portion and a second portion; an insulating layer di... | 04/17/2012 |
| 8157447 | Groove configuration for a fluid dynamic bearing A groove configuration that improves angular stiffness in a fluid dynamic bearing is provided. A primary groove and a secondary groove are formed on a journal bearing or thrust bearing surface. The secondary groove apex induces a heightened pressure response at a lo... | 04/17/2012 |
| 8154914 | Predictive thermal preconditioning and timing control for non-volatile memory cells A method and apparatus for using thermal preconditioning to write data to a non-volatile memory cell, such as a spin-torque transfer random access memory (STRAM) memory cell. In some embodiments, a logical state is written to an unconditioned non-volatile first memo... | 04/10/2012 |
| 8149657 | Optical waveguide clad material An apparatus includes a waveguide having a core layer and first and second cladding layers on opposite sides of the core layer, wherein the cladding layers comprise a binary oxide composition. In another example, the cladding layers include a ternary or quaternary c... | 04/03/2012 |
| 8149652 | Compensating the effects of static head-media spacing variations and nonlinear transition shift in heat assisted magnetic recording An apparatus comprises a storage medium, a recording head, a source of electromagnetic radiation, and a control circuit for modulating the source of electromagnetic radiation in response to a static deviation of a spacing between the recording head and the storage m... | 04/03/2012 |
| 8149539 | Thin film structure with controlled lateral thermal spreading in the thin film An apparatus includes a magnetic layer, a heat sink layer, and a thermal resistor layer between the magnetic layer and the heat sink layer. The apparatus may be configured as a thin film structure arranged for data storage. The apparatus may also include an interlay... | 04/03/2012 |
| 8149537 | Magnetic writer with multi-component shield A writer comprises a main pole, a write gap and a write shield. The main pole has a main pole tip for emitting magnetic flux. The write gap is adjacent the main pole tip along a center axis of the writer. The write shield is spaced from the main pole tip by the writ... | 04/03/2012 |
| 8144435 | Cost reduced microactuator suspension An improved microactuator suspension is provided for use with high density storage media. The number of microactuator elements is reduced to one and placed perpendicularly to the longitudinal axis of the suspension arm to maximize the windage and resonance performan... | 03/27/2012 |
| 8139464 | Planar optical waveguide for heat assisted magnetic recording An optical waveguide includes a core guiding layer, a cladding layer adjacent to the core guiding layer, a reflective layer, and a multiple layer stack on the reflective layer. The multiple layer stack includes a periodic arrangement of dielectric bilayers that each... | 03/20/2012 |
| 8139397 | Spatial correlation of reference cells in resistive memory array The present disclosure relates to methods of selectively placing a reference column or reference row in a memory array. The method includes measuring a resistance state resistance value for a plurality of variable resistive memory cells within a memory array and map... | 03/20/2012 |
| 8139323 | Material deposition on transducing head An apparatus includes a slider body having a leading edge and an opposite trailing edge, as well as a top face and a bottom face each extending between the leading edge and the trailing edge. The slider body further includes a plurality of protrusions extending from... | 03/20/2012 |
| 8134138 | Programmable metallization memory cell with planarized silver electrode Programmable metallization memory cells having a planarized silver electrode and methods of forming the same are disclosed. The programmable metallization memory cells include a first metal contact and a second metal contact, an ion conductor solid electrolyte mater... | 03/13/2012 |
| 8133332 | Method for preparing FePt media at low ordering temperature and fabrication of exchange coupled composite media and gradient anisotropy media for magnetic recording A method includes: constructing a multilayer structure including a first layer of Pt, a first layer of A1 phase FePt on the first layer of Pt, and a second layer of Pt on the layer of FePt, and annealing the multilayer structure to convert the A1 phase FePt to L1 | 03/13/2012 |
| 8131969 | Updating system configuration information A data storage system and associated method comprising system configuration information; a first processor adapted for identifying a portion of the system configuration information in response to a configuration change request to the memory space, and for signaling ... | 03/06/2012 |
| 8130458 | BPM recording with more than one dot per bit Data storage systems are provided. Data storage systems illustratively include a recording head having a writing element and a bit patterned medium having a plurality of media dots. In some embodiments, the plurality of media dots pass the recording head at a media ... | 03/06/2012 |
| D655249 | Interface of a connector | 03/06/2012 |
| 8127075 | Non-linear stochastic processing storage device A storage device includes an interface for receiving and outputting messages for processing data units, wherein each data unit includes message input field parameters, message output field parameters, and content field parameters, a non-volatile memory for storing d... | 02/28/2012 |
| 8125819 | Asymmetric write current compensation using gate overdrive for resistive sense memory cells Apparatus and associated method for asymmetric write current compensation for resistive sense memory (RSM) cells, such as but not limited to spin-torque transfer random access memory (STRAM) or resistive random access memory (RRAM) cells. In accordance with some emb... | 02/28/2012 |
| 8125746 | Magnetic sensor with perpendicular anisotrophy free layer and side shields A tunneling magneto-resistive reader includes a sensor stack separating a top magnetic shield from a bottom magnetic shield. The sensor stack includes a reference magnetic element having a reference magnetization orientation direction and a free magnetic element hav... | 02/28/2012 |
| 8125057 | Magnetic shielding for integrated circuit A shielded integrated circuit structure including an integrated circuit having a plurality of functional elements thereon, and a tiled array comprising a plurality of shielding elements, each functional element having one of the plurality of shielding elements proxi... | 02/28/2012 |
| 8124952 | Programmable resistive memory cell with filament placement structure Programmable metallization memory cells having a first metal contact and a second metal contact with an ion conductor solid electrolyte material between the metal contacts. The first metal contact has a filament placement structure thereon extending into the ion con... | 02/28/2012 |
| 8124441 | Programmable resistive memory cell with filament placement structure Programmable metallization memory cells having a first metal contact and a second metal contact with an ion conductor solid electrolyte material between the metal contacts. The first metal contact has a filament placement structure thereon extending into the ion con... | 02/28/2012 |
| 8120941 | Bidirectional non-volatile memory array architecture A bidirectional memory array architecture for non-volatile memory is disclosed. In accordance with some embodiments, a plurality of memory cells are arranged into an M number of rows and an N number of columns with each memory cell having a resistive sense element (... | 02/21/2012 |
| 8120867 | Apparatus and methods of generating a test pattern of data, analysing a test pattern of data, and testing a data storage disk medium and/or a read/write head A method of generating a test pattern of data to be written to a data storage disk medium for testing includes: rotating the disk; detecting fluctuations in the speed of rotation of the disk; producing a reference clock signal in accordance with the fluctuations so ... | 02/21/2012 |
| 8119265 | Magneto-elastic anisotropy assisted thin film structure A thin film structure, such as a magnetic recording media, having a magnetic layer and a stress-effecting layer is disclosed. The stress-effecting layer induces a magneto-elastic anisotropy in the magnetic layer. The stress-effecting layer can be activated by the ap... | 02/21/2012 |
| 8118964 | Assembly of data storage components A process for assembling data storage components in which a cylindrically shaped first structure of a data storage device is inserted into an aperture of a second structure, the first structure having a circumferentially extending outer surface and the aperture of t... | 02/21/2012 |
| RE43211 | Host-based power savings method and apparatus A system which includes a disk drive or other storage device coupled to a host system provides for reduction of the amount or rate of drive power consumption using procedures which are at least partially executed on the host. The system can be configured to reduce a... | 02/21/2012 |
