Patent application number | Description | Published |
20080239579 | Spring loaded head for reduced fly height and tracking control - An apparatus includes a body having a first air bearing surface and defining an opening, and a transducer portion having a second air bearing surface and positioned within the opening and coupled to the body by a plurality of spring members extending from the transducer portion to the body. | 10-02-2008 |
20090073747 | MAGNETORESISTIVE SENSOR MEMORY WITH MULTIFERROIC MATERIAL - A memory cell includes a magnetoresistive sensor that comprises layers that include a free layer. The magnetoresistive sensor conducts a read current representative of data stored in the memory cell during a read interval. A first write conductor carries a write current that writes data in the free layer. At least one of the layers comprises a multiferroic layer formed of multiferroic material. | 03-19-2009 |
20090073858 | HAMR Recording Head Having A Sloped Wall Pole - An apparatus includes a waveguide having an end adjacent to an air bearing surface, first and second poles positioned on opposite sides of the waveguide, and wherein the first pole includes a first portion spaced from the waveguide and a second portion extending from the first portion to the air bearing surface, with the second portion being structured such that an end of the second portion is closer to the waveguide than the first portion. | 03-19-2009 |
20090158305 | DATA WRITING WITH PLASMON RESONATOR - A data writing system includes an array of cells for storing data and a write transducer that moves over a selected cell in the array of cells. The write transducer includes a writer producing a write magnetic field that intersects the selected cell. The write transducer also includes a plasmon resonator that is adjacent the writer. The plasmon resonator is shaped to receive lower power density radiation and to provide plasmon radiation at a higher power density to an optical spot intersecting with the selected cell. The plasmon radiation heats the selected cell above a write temperature. | 06-18-2009 |
20090208171 | Waveguide For Heat Assisted Magnetic Recording - An apparatus includes a slider mounted on an arm, a first waveguide including a first core guiding layer, a second waveguide mounted on the slider and including a second core guiding layer having a thickness smaller than the thickness of the first core guiding layer, and a coupler for coupling light from the first core guiding layer to the second core guiding layer. | 08-20-2009 |
20090257324 | Flexible Waveguide With Adjustable Index Of Refraction - A flexible waveguide with an adjustable index of refraction. The core layer and/or the cladding layer of a flexible waveguide may include a plurality of nanoparticles having a different index of refraction than the core layer and/or cladding layer. The plurality of nanoparticles may have an index of refraction that is greater than or less than an index of refraction of either the core layer or the cladding layer in order that the overall effective index of refraction of either the core layer or the cladding layer can be adjusted. | 10-15-2009 |
20090268506 | STORAGE DEVICE INCLUDING A MEMORY CELL HAVING MULTIPLE MEMORY LAYERS - In a particular illustrative embodiment, a storage device includes a controller and a plurality of resistive elementary memory cells accessible via the controller. Each resistive elementary memory cell of the plurality of resistive elementary memory cells includes a plurality of memory layers selected to have hysteretic properties to store multiple data values. | 10-29-2009 |
20090310459 | Laser On Slider For A Heat Assisted Magnetic Recording Head - A recording head includes a magnetic write pole having an end positioned adjacent to an air bearing surface, a first waveguide having an end positioned adjacent to the air bearing surface, a laser, and a coupler for coupling light from the laser to the waveguide. The coupler can include a grating positioned in or adjacent to a lasing cavity of the laser. | 12-17-2009 |
20100119194 | Optical Waveguide With Reflector - An optical waveguide includes a core layer having a first core section and a second core section, wherein the first core section is non-axially aligned with the second core section. The optical waveguide also includes a cladding layer disposed about the core layer and a reflector in optical communication with the core layer for directing an electromagnetic wave from the first core section to the second core section. | 05-13-2010 |
20100128579 | Sloped Pole For Recording Head With Waveguide - An apparatus having a first pole with a first side and a second side opposite from the first side, a second pole positioned on the first side of the first pole, and a waveguide positioned on the second side of the first pole wherein the waveguide has an end adjacent to an air bearing surface. The first pole includes a first portion spaced from the waveguide and a second portion extending from the first portion to the air bearing surface, with the second portion being structured such that an end of the second portion is closer to the waveguide than the first portion. | 05-27-2010 |
20100188773 | Multiferroic Storage Medium - A data storage medium that includes a multiferroic thin film and ferromagnetic storage domains formed in the multiferroic thin film. The multiferroic thin film may be formed of at least one of BiFeO | 07-29-2010 |
20100208378 | Bit Patterned Media With Embedded Near-Field Transducer - An apparatus includes a recording media including a substrate, a plurality of islands of magnetic material on the substrate, and a non-magnetic material between the islands, a recording head having an air bearing surface positioned adjacent to the recording media, and including a magnetic pole, and an optical transducer, wherein the optical transducer directs electromagnetic radiation onto recording media to heat portions of the recording media and a magnetic field from the magnetic pole is used to set the direction of the magnetization in the heated portions of the recording media, and a plurality of near-field transducers, each positioned adjacent to one of the islands to increase coupling between the electromagnetic radiation and the magnetic material. | 08-19-2010 |
20100214684 | Discrete Track Media (DTM) Design and Fabrication for Heat Assisted Magnetic Recording (HAMR) - An apparatus includes a recording media including a substrate, a plurality of tracks of magnetic material on the substrate, and a non-magnetic material between the tracks; a recording head having an air bearing surface positioned adjacent to the recording media, and including a magnetic pole, an optical transducer, and a near-field transducer, wherein the near-field transducer directs electromagnetic radiation onto tracks to heat portions of the tracks and a magnetic field from the magnetic pole is used to create magnetic transitions in the heated portions of the tracks; and a plasmonic material positioned adjacent to the magnetic material to increase coupling between the electromagnetic radiation and the magnetic material. | 08-26-2010 |
20100214685 | Recording Head For Heat Assisted Magnetic Recording - An apparatus includes a waveguide having a core layer and an end adjacent to an air bearing surface, first and second poles magnetically coupled to each other and positioned on opposite sides of the waveguide, wherein the first pole includes a first portion spaced from the waveguide and a second portion extending from the first portion toward the air bearing surface, with the second portion being structured such that an end of the second portion is closer to the core layer of the waveguide than the first portion, and a heat sink positioned adjacent to the second portion of the first pole. | 08-26-2010 |
20130121121 | RECORDING HEAD WITH WAVEGUIDE - An apparatus having a first pole with a first side and a second side opposite from the first side, a second pole positioned on the first side of the first pole, and a waveguide positioned on the second side of the first pole wherein the waveguide has an end adjacent to an air bearing surface. The first pole includes a first portion spaced from the waveguide and a second portion extending from the first portion to the air bearing surface, with the second portion being structured such that an end of the second portion is closer to the waveguide than the first portion. | 05-16-2013 |
20130223196 | PLASMONIC FUNNEL FOR FOCUSED OPTICAL DELIVERY TO A METALLIC MEDIUM - An apparatus includes a transducer including a plasmonic funnel having first and second ends with the first end having a smaller cross-sectional area than the second end, and a first section positioned adjacent to the first end of the plasmonic funnel, and a first waveguide having a core, positioned to cause light in the core to excite surface plasmons on the transducer. | 08-29-2013 |