Having Magnetic Properties, Or Preformed Fiber Orientation Coordinate With Shape Patents (Class 428/611)
  • Patent number: 12095316
    Abstract: Systems and methods to mitigate electrical voltage on a rotating plate are disclosed. An example grounding pen brush includes two or more bundles of conductive filaments that are separated from the others by a threshold distance.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: September 17, 2024
    Assignee: Illinois Tool Works Inc.
    Inventors: Richard Francis Nye, Mathew Roman
  • Patent number: 11423928
    Abstract: A method includes forming a single-crystal-like metal layer on a metal seed layer, the metal seed layer formed on a sacrificial wafer. An anchor layer is formed on the single-crystal-like metal layer. The single-crystal-like metal layer is separated from the sacrificial wafer via the anchor layer. The single-crystal-like metal layer is transported via the anchor layer to a target substrate having one or more recording head subassemblies. The single-crystal-like metal layer is joined with the recording head, the single-crystal-like metal layer being integrated with the recording head as a near-field transducer.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: August 23, 2022
    Assignee: Seagate Technology LLC
    Inventors: Michael Christopher Kautzky, Tong Zhao, Li Wan, Xiaolu Kou
  • Patent number: 11103955
    Abstract: A computer-controlled method of component manufacture is disclosed, which includes winding a thread of material around a shaping element to form a first layer formed of adjacent turns of the thread. The winding is repeated to form a second layer of adjacent turns of the thread on top of the first layer. A laser beam is then applied between adjacent turns of each layer to attach them at predetermined points.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: August 31, 2021
    Inventors: Adrian Norton, Philip Harris
  • Patent number: 11087794
    Abstract: The invention provides a magnetic recording medium including a magnetic layer or a magnetic recording layer having a granular structure in which magnetic crystal grains are well separated from each other. The magnetic recording medium includes a substrate, a seed layer, and a magnetic recording layer, wherein the magnetic recording layer includes a first magnetic layer which is a continuous film consisting of an ordered alloy, and a second magnetic layer having a granular structure consisting of magnetic crystal grains consisting of an ordered alloy and a non-magnetic crystal grain boundary, and the seed layer consists of a material selected from the group consisting of an NaCl-type compound, a spinel-type compound, and a perovskite-type compound.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: August 10, 2021
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Tomohiro Moriya, Hitoshi Nakata, Takehito Shimatsu
  • Patent number: 10910556
    Abstract: Described is an apparatus which comprises: a heat spreading layer; a first transition metal layer adjacent to the heat spreading layer; and a magnetic recording layer adjacent to the first transition metal layer. Described is an apparatus which comprises: a first electrode; a magnetic junction having a free magnet; and one or more layers of Jahn-Teller material adjacent to the first electrode and the free magnet of the magnetic junction.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: February 2, 2021
    Assignee: Intel Corporation
    Inventors: Sasikanth Manipatruni, Ian A. Young, Dmitri E. Nikonov, Ravi Pillarisetty, Uygar E. Avci
  • Patent number: 10783915
    Abstract: A method and system provide a magnetic recording media usable in a magnetic storage device. The magnetic recording media includes a substrate, at least one intermediate layer and a magnetic recording stack for storing magnetic data. The intermediate layer(s) include a majority phase having a first diffusion constant and a secondary phase having a second diffusion constant greater than the first diffusion constant. The magnetic recording stack residing on the intermediate layer such that the at least one intermediate layer is between the substrate and the magnetic recording stack.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: September 22, 2020
    Assignee: Western Digital Technologies, Inc.
    Inventors: Kumar Srinivasan, Tuqiang Li, Mrugesh Desai
  • Patent number: 10685781
    Abstract: A method for synthesis of high anisotropy L10 FeNi (tetrataenite) thin films is provided that combines physical vapor deposition via atomic layer sputtering and rapid thermal annealing with extreme heating and cooling speeds. The methods can induce L10-ordering in FeNi thin films. The process uses a base composite film of a support substrate, a seed layer, a multilayer thin film of FeNi with alternating single atomic layers of Fe and Ni that mimics the atomic plane of the final L10 FeNi alloy, and a capping layer. The Fe and Ni bilayers are grown on top of a Si substrate with a thermally oxidized SiO2 seed layer to mechanically strain the sample during rapid thermal annealing.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 16, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Kai Liu, Julius De Rojas, Dustin A. Gilbert
  • Patent number: 10685760
    Abstract: Ultra-conductive wires having enhanced electrical conductivity are disclosed. The conductivity of an ultra-conductive wire is enhanced using cold wire drawing and annealing. Methods of making the ultra-conductive wires are further disclosed.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: June 16, 2020
    Assignee: GENERAL CABLE TECHNOLOGIES CORPORATION
    Inventors: Shenjia Zhang, Sathish Kumar Ranganathan
  • Patent number: 10662065
    Abstract: This invention is in the field of physical chemistry and relates to novel hyperuniform and nearly hyperuniform random network materials and methods of making said materials. Methods are described for controlling or altering the band gap of a material, and in particular commercially useful materials such as amorphous silicon. These methods can be exploited in the design of semiconductors, transistors, diodes, solar cells and the like.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: May 26, 2020
    Assignee: The Trustees of Princeton University
    Inventors: Paul J. Steinhardt, Salvatore Torquato, Miroslav Hejna
  • Patent number: 10374497
    Abstract: In a method to manufacture an improved exciter for a generator, the exciter comprising an exciter rotor, and an exciter stator, a coil of full hard cold rolled electrical steel is provided, the steel comprising at least silicon in a weight percent greater than 0.60%. Without a prior annealing of the full hard cold rolled steel coil, the coil is slit to create at least one strip. The at least one strip is stamped to create a plurality of rotor laminations and a plurality of stator laminations from the same strip. The rotor laminations are separated from the stator laminations and the set of rotor laminations and the set of stator laminations are created. Only the set of exciter rotor laminations are annealed. The annealed set of exciter rotor laminations are assembled to create the exciter rotor and the set of not annealed exciter stator laminations are assembled to create the exciter stator.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: August 6, 2019
    Assignee: TEMPEL STEEL COMPANY
    Inventors: Gwynne Johnston, Erik J. Hilinski
  • Patent number: 10283266
    Abstract: A powder core includes: a powder of a crystalline magnetic material; and a powder of an amorphous magnetic material, in which a median diameter D50A of the powder of the amorphous magnetic material is 15 ?m or less, and satisfies the expression: 1?D50A/D50C?3.5 with respect to a median diameter D50C of the powder of the crystalline magnetic material.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: May 7, 2019
    Assignee: Alps Alpine Co., Ltd.
    Inventors: Ryo Nakabayashi, Akinori Kojima, Seiichi Abiko, Keiichiro Sato, Akira Sato, Takao Mizushima
  • Patent number: 10208238
    Abstract: Methods of producing continuous (or discontinuous) boron carbide fibers. The method comprises reacting a continuous or discontinuous carbon fiber material and a boron oxide gas within a temperature range of from approximately 1400° C. to approximately 2200° C. Articles including such partially or fully converted fibers may be provided, including such reinforcing fibers in a matrix of ceramic (a CMC), in metal (a MMC), or other matrix (e.g., polymer, etc.).
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: February 19, 2019
    Assignee: ADVANCED CERAMIC FIBERS, LLC
    Inventors: John E. Garnier, George W. Griffith
  • Patent number: 10081163
    Abstract: Provided is an article of cookware and a method of making the same. The cookware has a multi-layer bonded composite wall structure having an inner metal layer and an outer metal layer, and a core layer between the inner layer and the outer layer. The core layer has at least two perforated graphite plates, each plate having a plurality of spaced-apart holes formed therethrough, and at least one intermediate metal element disposed between the at least two perforated graphite plates and extending through the plurality of spaced-apart holes of each of the at least two perforated graphite plates. The at least one intermediate metal element is metallurgically bonded to the inner layer and the outer layer at least through the plurality of spaced-apart holes.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: September 25, 2018
    Assignee: All-Clad Metalcrafters LLC
    Inventors: William A. Groll, John Watkins
  • Patent number: 10049798
    Abstract: A magnet is disclosed. The magnet includes a plurality of layers such that a first layer includes a ferromagnetic material comprising iron and a rare earth element; and a second layer includes an alkaline earth metal fluoride and a rare earth oxide. A method of preparing a magnet and an article including the magnet are disclosed. The method includes disposing a first layer including a ferromagnetic material and disposing a second layer over the first layer.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: August 14, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Sean Michael Sweeney
  • Patent number: 10002632
    Abstract: A perpendicular recording medium with enhanced magnetic stability. In accordance with some embodiments, a multi-layer recording structure is formed on a base substrate and adapted to magnetically store a magnetic bit sequence in domains substantially perpendicular to said layers. A thin magnetic stabilization layer is formed on the multi-layer recording substrate to magnetically stabilize an upper portion of the recording structure.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: June 19, 2018
    Assignee: Seagate Technology LLC
    Inventors: Bo Bian, Weikang Shen, Pengcheng Li, Miaogen Lu, Connie Chunling Liu, Thomas Nolan
  • Patent number: 9990951
    Abstract: Provided herein is an apparatus including a top continuous layer and a bottom continuous layer under the top continuous layer. The top continuous layer and the bottom continuous layer are antiferromagnetically coupled. A number of granular columns are under the bottom continuous layer. The number of granular columns include at least a first granular layer under the bottom continuous layer and a second granular layer also under the first granular layer. The first granular layer and the second granular layer are separated by a non-magnetic spacer. The first granular layer and the second granular layer are ferromagnetically coupled. The first granular layer is antiferromagnetically coupled to the bottom continuous layer.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: June 5, 2018
    Assignee: Seagate Technology LLC
    Inventor: Bin Lu
  • Patent number: 9897494
    Abstract: According to one embodiment, a strain sensing element provided on a deformable substrate, includes: a first magnetic layer; a second magnetic layer; and an intermediate layer. The second magnetic layer includes Fe1-yBy (0<y?0.3). Magnetization of the second magnetic layer changes according to deformation of the substrate. The intermediate layer is provided between the first magnetic layer and the second magnetic layer.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: February 20, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shiori Kaji, Hideaki Fukuzawa, Yoshihiko Fuji
  • Patent number: 9890438
    Abstract: An aluminum copper clad material has excellent bonding strength and includes an aluminum layer and a copper layer that are bonded without a nickel layer interposed therebetween. The aluminum layer and the copper layer are diffusion-bonded via an Al—Cu intermetallic compound layer. The copper layer satisfies Dcs?0.5×Dcc, where Dcc represents the average crystal grain size of crystal grains in a central portion in the thickness direction of the copper layer, and Dcs represents the average crystal grain size of an interface adjacent portion C2 in the copper layer that is about 0.5 ?m apart from the interface between the copper layer and the intermetallic compound layer. The intermetallic compound layer has an average thickness of about 0.5 ?m to about 10 ?m.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: February 13, 2018
    Assignee: Hitachi Metals, Ltd.
    Inventors: Yoshimitsu Oda, Masaaki Ishio, Akio Hashimoto, Kenji Ikeuchi
  • Patent number: 9508373
    Abstract: Provided are an element structure in which a magnetic layer has a high magnetic anisotropy constant and saturated magnetization properties in a thickness of 1.5 nm or less, and a magnetic device that uses the element structure. A BCC metal nitride/CoFeB/MgO film structure that uses a nitride of a BCC metal as a seed layer is fabricated. The nitride amount in the BCC metal nitride is preferably less than 60% in terms of volume ratio based on 100% BCC metal. It is thereby possible to readily obtain a perpendicularly magnetized film having the magnetic properties that the perpendicular magnetic anisotropy is 0.1×106 erg/cm3 or more and the saturated magnetization is 200 emu/cm3 or more, even when the thickness of the magnetic layer is 0.3 nm or more and 1.5 nm or less.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: November 29, 2016
    Assignee: National Institute for Materials Science
    Inventors: Masamitsu Hayashi, Sinha Jaivardhan, Masaya Kodzuka, Tomoya Nakatani, Yukiko Takahashi, Takao Furubayashi, Seiji Mitani, Kazuhiro Hono
  • Patent number: 9358612
    Abstract: An FePt-based sputtering target contains Fe, Pt, and a metal oxide, and further contains one or more kinds of metal elements other than Fe and Pt, wherein the FePt-based sputtering target has a structure in which an FePt-based alloy phase and a metal oxide phase containing unavoidable impurities are mutually dispersed, the FePt-based alloy phase containing Pt in an amount of 40 at % or more and less than 60 at % and the one or more kinds of metal elements in an amount of more than 0 at % and 20 at % or less with the balance being Fe and unavoidable impurities and with the total amount of Pt and the one or more kinds of metal elements being 60 at % or less, and wherein the metal oxide is contained in an amount of 20 vol % or more and 40 vol % or less based on the total amount of the target.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: June 7, 2016
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Takanobu Miyashita, Yasuyuki Goto, Takamichi Yamamoto, Ryousuke Kushibiki, Masahiro Aono, Masahiro Nishiura
  • Patent number: 9123373
    Abstract: A method of fabricating a perpendicular magnetic recording disk is described. The method may include providing a magnetic recording layer disposed above a substrate with a plurality of intermediate layers disposed there between and electrochemically etching the magnetic recording layer.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: September 1, 2015
    Assignee: Western Digital Media, LLC
    Inventors: Andrew M. Homola, Chunbin Zhang, Paul C. Dorsey, David Treves
  • Patent number: 9103023
    Abstract: A nonmagnetic material particle-dispersed ferromagnetic material sputtering target comprising a mixture of an alloy containing 5 mol % or more and 20 mol % or less of Cr, 5 mol % or more and 30 mol % or less of Pt, and Co as the remainder thereof, and nonmagnetic material particles, wherein the structure of the target includes a phase (A) in which the nonmagnetic material particles are uniformly micro-dispersed in the alloy, and a spherical alloy phase (B) dispersed in the phase (A) in which the ratio of its volume in the target is 4% or more and 40% or less. Obtained is a nonmagnetic material particle-dispersed ferromagnetic material sputtering target capable of improving the leakage magnetic flux to obtain a stable electrical discharge with a magnetron sputtering device, and which has high density and generates few particles during sputtering.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: August 11, 2015
    Assignee: JX Nippon Mining & Metals Corporation
    Inventor: Atsushi Sato
  • Patent number: 9093101
    Abstract: A stack including a crystallographic orientation interlayer, a magnetic zero layer disposed on the interlayer, and a magnetic recording layer disposed on the magnetic zero layer is disclosed. The magnetic zero layer is non-magnetic or has a saturation magnetic flux density (Bs) less than about 100 emu/cc. The magnetic zero layer and the magnetic layer include grains surrounded by a non-magnetic segregant. The magnetic zero layer provides a coherent interface between the interlayer and the magnetic layer with a lattice mismatch less than about 4%.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: July 28, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Jai-Young Kim, Thomas P. Nolan, Kyongha Kang, Shoutao Wang, Vincent D. Nguyen, Abebe Hailu, Charles C. Chen
  • Patent number: 9082534
    Abstract: A material composition for forming a free layer in a STT structure (such as a single or dual MTJ structure) can include CoxFeyMz, where M is a non-magnetic material that assists in forming a good crystalline orientation and matching between the free layer and an MgO interface. The material M preferably either does not segregate to the MgO interface or, if it does segregate to the MgO interface, it does not significantly reduce the PMA of the free layer. The free layer can further include a connecting layer, where M is attracted to the insertion layer during annealing. The free layer can include a graded composition of CoxFeyMz, where z changes within the free layer.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: July 14, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Roman Chepulskyy, Dmytro Apalkov
  • Patent number: 8846216
    Abstract: A method for producing a cast metal piece and a cast metal piece are provided. An information element includes at least one piece of information. The information element is produced from a magnetizable material and the information is deposited n the magnetizable material and is cast into the information element during casting of the price, the casting temperature being above the Curie temperature of the magnetizable material of the information element.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: September 30, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rene Jabado, Jens Dahl Jensen, Ursus Krüger, Daniel Körtvelyessy, Richard Matz, Ralph Reiche, Michael Rindler, Steffen Walter
  • Publication number: 20140272452
    Abstract: A electric wire includes a central conductor 1 made of aluminum or an aluminum alloy, a cover layer 2 made of copper and covering the central conductor 1, and a ferromagnetic layer 3 covering the cover layer 2 and blocking the external magnetic field. The thickness of the ferromagnetic layer 3 is in a range from 0.04 ?m to 14 ?m, the total diameter of the central conductor 1 and the cover layer 2 is in a range from 0.05 mm to 0.4 mm, and the cross-sectional area of the central conductor 1 is in a range from 85% to 95% of the total cross-sectional area of the central conductor 1 and the cover layer 2.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: FUJIKURA LTD.
    Inventors: Chihiro KAMIDAKI, Ning GUAN, Takashi SHINMOTO, Yasunobu HORI
  • Patent number: 8793085
    Abstract: A magnetic field sensor and a method used therein provide a measured signal representative of an angular speed of rotation of a target object. The magnetic field sensor, in accordance with the measured speed of rotation, can automatically change various characteristics of the magnetic field sensor.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: July 29, 2014
    Assignee: Allegro Microsystems, LLC
    Inventors: Mark J. Donovan, Michael C. Doogue, Ryan Metivier
  • Publication number: 20140115974
    Abstract: The invention relates to hard-metal body comprising a hard-metal, the hard-metal comprising tungsten carbide grains and metal binder comprising cobalt having a concentration of tungsten dissolved therein, the body comprising a surface region adjacent a surface and a core region remote from the surface, the surface region and the core region being contiguous with each other; the mean binder fraction of the core region being greater than that of the surface region; the mean carbon concentration within the binder being higher in the surface region than in the core region; to tools comprising same and methods of making same.
    Type: Application
    Filed: January 3, 2014
    Publication date: May 1, 2014
    Inventors: Igor Yuri Konyashin, Sebastian Ralf Hlawatschek, Bernd Heinrich Ries, Frank Friedrich Lachmann
  • Patent number: 8641833
    Abstract: An object of the present invention is to provide an R—Fe—B based sintered magnet having on a surface thereof a chemical conversion film with higher corrosion resistance than a conventional chemical conversion film such as a phosphate film, and a method for producing the same. The corrosion-resistant magnet of the present invention as a means for achieving the object is characterized by comprising a chemical conversion film containing at least Zr, Nd, fluorine, and oxygen as constituent elements and not containing phosphorus directly on a surface of an R—Fe—B based sintered magnet, wherein R is a rare-earth element including at least Nd.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: February 4, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Toshinobu Niinae, Koshi Yoshimura, Koji Kamiyama
  • Patent number: 8501330
    Abstract: A perpendicular magnetic recording medium adapted for high recording density and high data recording rate comprises a non-magnetic substrate having at least one surface with a layer stack formed thereon, the layer stack including a perpendicular recording layer containing a plurality of columnar-shaped magnetic grains extending perpendicularly to the substrate surface for a length, with a first end distal the surface and a second end proximal the surface, wherein each of the magnetic grains has: (1) a gradient of perpendicular magnetic anisotropy field Hk extending along its length between the first end and second ends; and (2) predetermined local exchange coupling strengths along the length.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: August 6, 2013
    Assignee: Seagate Technology LLC
    Inventors: Shaoping Li, Kaizhong Gao, Lei Wang, Wenzhong Zhu, Xiaobin Wang
  • Publication number: 20130065075
    Abstract: Embodiments relate to magnetoresistive (MR) sensors, sensor elements and structures, and methods. In particular, embodiments relate to MR, such as giant MR (GMR) or tunneling MR (TMR), spin valve layer systems and related sensors having improved stability. Embodiments include at least one of a multi-layer pinned layer or a multi-layer reference layer, making the stack more stable and therefore suitable for use at higher temperatures and magnetic fields than conventional systems and sensors.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 14, 2013
    Inventors: Klemens Pruegl, Juergen Zimmer, Andreas Strasser, Wolfgang Raberg, Thomas Bever
  • Publication number: 20130022833
    Abstract: A silicon steel sheet formed from a silicon steel alloy composition includes, in parts by weight, iron, carbon present in an amount of from about 0.002 to about 0.06, silicon present in an amount of from about 1.5 to about 4.0, aluminum present in an amount of from about 0.1 to 1.0, titanium present in an amount of less than or equal to about 0.03, vanadium present in an amount of less than or equal to about 0.005, and cobalt present in an amount of from about 0.001 to about 5.0 based on 100 parts by weight of the composition. Neither niobium nor zirconium is present in the composition. A silicon steel sheet system including the silicon steel sheet and a coating disposed thereon, and an electromagnetic machine having a magnetic core including a plurality of sheets stacked adjacent one another are also disclosed.
    Type: Application
    Filed: July 22, 2011
    Publication date: January 24, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Shekhar G. Wakade
  • Patent number: 8347487
    Abstract: A fabricating method of a magnetoresistance sensor is provided with cost effective and process flexibility features. Firstly, a substrate is provided. Then, at least one magnetoresistance structure and at least one bonding pad are formed over the substrate, wherein the bonding pad is electrically connected with the magnetoresistance structure. Then, a passivation layer is formed over the magnetoresistance structure and the bonding pad. Then, a magnetic shielding and concentrator structure is formed over the passivation layer at a location corresponding to the magnetoresistance structure. Finally, bonding pad openings is formed on the passivation layer by patterned polyimide, thereby exposing the bonding pad. After bonding pad was opened, the patterned polyimide can be removed or retained as an additional protection layer.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: January 8, 2013
    Assignee: Voltafield Technology Corporation
    Inventors: Fu-Tai Liou, Chih-Chien Liang, Chien-Min Lee
  • Patent number: 8333899
    Abstract: According to one embodiment, a method of manufacturing a magnetic recording medium includes forming on a magnetic recording layer a first hard mask, a second hard mask, a third hard mask and a resist, imprinting the resist with a stamper, removing a residue left in the recesses of the patterned resist, etching the third hard mask by use of the patterned resist as a mask, etching the second hard mask by use of the third hard mask as a mask, etching the first hard mask by use of the second hard mask as a mask, forming a pattern of the magnetic recording layer with ion beam irradiation, and removing the first hard mask by use of a remover liquid with higher reactivity to the metal material of the first hard mask than to a constituent element of the magnetic recording layer.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: December 18, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masatoshi Sakurai, Kaori Kimura, Yousuke Isowaki, Akira Watanabe, Yoshiyuki Kamata
  • Publication number: 20120174597
    Abstract: A magnetic material for magnetic refrigeration of an embodiment has a composition represented by the formula, Gd100-x-y(HoxEry), and satisfies 0<x+y?25 and 0?y/(x+y)?0.6.
    Type: Application
    Filed: March 16, 2012
    Publication date: July 12, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Shiori Kaji, Akiko Saito, Tadahiko Kobayashi
  • Publication number: 20120127620
    Abstract: The invention relates to a soft-magnetic metal strip for electromechanical components, wherein the soft-magnetic metal strip has a nanocrystalline or amorphous structure. The metal strip has strip thickness to roughness ratios d/Ra of 5?d/Ra?25.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 24, 2012
    Applicant: Vacuumschmelze GmbH & Co, KG
    Inventor: Giselher HERZER
  • Publication number: 20120077056
    Abstract: A high-temperature bimetal capable of being inhibited from considerably shifting from an original position when the temperature has fallen to an ordinary temperature is provided. This high-temperature bimetal (1) includes a high thermal expansion layer (2) made of austenitic stainless steel and a low thermal expansion layer (3) made of a thermosensitive magnetic metal having a Curie point and bonded to the high thermal expansion layer. The high-temperature bimetal is employed over both a high temperature range of not less than the Curie point and a low temperature range of less than the Curie point, while an upper limit of operating temperatures in the high temperature range of not less than the Curie point is at least 500° C.
    Type: Application
    Filed: May 21, 2010
    Publication date: March 29, 2012
    Applicant: NEOMAX MATERIALS CO., LTD.
    Inventors: Yoshimitsu Oda, Masaaki Ishio
  • Publication number: 20120040202
    Abstract: The invention relates to the field of materials science and material physics and relates to a coated magnetic alloy material, which can be used, for example, as a magnetic cooling material for cooling purposes. The object of the present invention is to disclose a coated magnetic alloy material, which has improved mechanical and/or chemical properties. The object is attained with a magnetic alloy material with a NaZn13 type crystal structure and a composition according to the formula RaFe100-a-x-y-zTxMyLz and the surface of which is coated with a material composed of at least one element from the group Al, Si, C, Sn, Ti, V, Cd, Cr, Mn, W, Co, Ni, Cu, Zn, Pd, Ag, Pt, Au or combinations thereof The object is furthermore attained by a method in which the magnetic alloy material is coated by means of a method from the liquid phase.
    Type: Application
    Filed: December 10, 2009
    Publication date: February 16, 2012
    Inventors: Julia Lyubina, Mihaela Buschbeck, Oliver Gutfleisch
  • Patent number: 8057871
    Abstract: This invention provides an improved anti-theft label and its assembly method. It uses paper box and paper sealing gasket to replace PVC box and PET sealing gasket. The anti-theft label applying the technical scheme of this invention is nontoxic and does no harm to human health. It can be used safely, and is the new generation of anti-theft label that is good for environment protection and represents the main developing trend of future anti-theft labels. Moreover, in the improved anti-theft label in this invention, we use double-sided gummed paper that can easily get from market to replace self-adhesive glues which needs to be sprayed. The assembling techniques are simpler; consequently the production efficiency can be significantly improved.
    Type: Grant
    Filed: May 29, 2006
    Date of Patent: November 15, 2011
    Inventor: Fengyi Cai
  • Publication number: 20110268993
    Abstract: A silicon/gold (Si/Au) bilayer seed structure is located in a film stack between an amorphous or crystalline lower layer and an upper layer with a well-defined crystalline structure. The seed structure includes a Si layer on the generally flat surface of the lower layer and a Au layer on the Si layer. The Si/Au interface initiates the growth of the Au layer with a face-centered-cubic (fcc) crystalline structure with the (111) plane oriented in-plane. The upper layer grown on the Au layer has a fcc or hexagonal-close-packed (hcp) crystalline structure. If the upper layer is a fcc material its [111] direction is oriented substantially perpendicular to the (111) plane of the Au layer and if the upper layer is a hcp material, its c-axis is oriented substantially perpendicular to the (111) plane of the Au layer.
    Type: Application
    Filed: May 1, 2010
    Publication date: November 3, 2011
    Applicant: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.
    Inventors: Olav Hellwig, Dieter K. Weller
  • Patent number: 8048545
    Abstract: A perpendicular magnetic recording medium adapted for high recording density and high data recording rate comprises a non-magnetic substrate having at least one surface with a layer stack formed thereon, the layer stack including a perpendicular recording layer containing a plurality of columnar-shaped magnetic grains extending perpendicularly to the substrate surface for a length, with a first end distal the surface and a second end proximal the surface, wherein each of the magnetic grains has: (1) a gradient of perpendicular magnetic anisotropy field Hk extending along its length between the first end and second ends; and (2) predetermined local exchange coupling strengths along the length.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: November 1, 2011
    Assignee: Seagate Technology LLC
    Inventors: Shaoping Li, Kaizhong Gao, Lei Wang, Wenzhong Zhu, Xiaobin Wang
  • Patent number: 8029922
    Abstract: Methods and associated structures of forming microelectronic devices are described. Those methods may include forming a magnetic material on a substrate, wherein the magnetic material comprises rhenium, cobalt, iron and phosphorus, and annealing the magnetic material at a temperature below about 330 degrees Celsius, wherein the coercivity of the annealed magnetic material is below about 1 Oersted.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: October 4, 2011
    Assignee: Intel Corporation
    Inventors: Paul McCloskey, Donald S. Gardner, Brice Jamieson, Saibal Roy, Terence O'Donnell
  • Publication number: 20110200839
    Abstract: Laminated, composite, permanent magnets comprising layers of permanent magnets separated by layers of dielectric or high electrical resistivity substances, wherein the laminated magnets indicate increased electrical resistivity.
    Type: Application
    Filed: February 17, 2010
    Publication date: August 18, 2011
    Inventors: Melania Marinescu, Jinfang Liu
  • Publication number: 20110186948
    Abstract: Magnetic material based on at least one magnetic 3d transition metal element and at least one Group IVA semiconductor element, this material being homogeneous and having a Curie temperature (Tc) of 350 K or higher. Method for the production and uses thereof, especially in spintronics.
    Type: Application
    Filed: July 21, 2009
    Publication date: August 4, 2011
    Inventors: Pascal Pochet, Emmanuel Arras
  • Patent number: 7951464
    Abstract: A composite material may be provided with unique alignment characteristics. The composite material may include a matrix material and a plurality of fibers disposed in the matrix material, wherein the plurality of fibers is magnetically aligned in a uniform spacing within the matrix material.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: May 31, 2011
    Assignee: General Electric Company
    Inventor: Herbert Chidsey Roberts
  • Patent number: 7914915
    Abstract: A highly charged ion modified device is provided that includes a first metal layer or layers deposited on a substrate and an insulator layer, deposited on the first metal layer, including a plurality of holes therein produced by irradiation thereof with highly charged ions. The metal of a further metal layer, deposited on the insulator layer, fills the plurality of holes in the insulator layer.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: March 29, 2011
    Assignee: The United States of America as represented by the Secretary of the Commerce, The National Institutes of Standards and Technology
    Inventors: Joshua M. Pomeroy, Holger Grube, Andrew Perrella, Fern Slew, legal representative
  • Publication number: 20110039122
    Abstract: A method for producing a grain-oriented magnetic strip, covered with a phosphate layer, comprising applying a phosphate solution, which contains a colloid component and at least one colloid stabilizer as an additive to the magnetic strip.
    Type: Application
    Filed: February 12, 2009
    Publication date: February 17, 2011
    Applicant: THYSSENKRUPP ELECTRICAL STEEL GMBH
    Inventors: Christof Holzapfel, Carsten Schepers, Heiner Schrapers
  • Patent number: 7846564
    Abstract: A perpendicular magnetic recording medium adapted for high recording density and high data recording rate comprises a non-magnetic substrate having at least one surface with a layer stack formed thereon, the layer stack including a perpendicular recording layer containing a plurality of columnar-shaped magnetic grains extending perpendicularly to the substrate surface for a length, with a first end distal the surface and a second end proximal the surface, wherein each of the magnetic grains has: (1) a gradient of perpendicular magnetic anisotropy field Hk extending along its length between the first end and second ends; and (2) predetermined local exchange coupling strengths along the length.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: December 7, 2010
    Assignee: Seagate Technology LLC
    Inventors: Shaoping Li, Kaizhong Gao, Lei Wang, Wenzhong Zhu, Xiaobin Wang
  • Publication number: 20100291403
    Abstract: Disclosed are bimetallic strips that incorporate magnetostrictive materials to enhance and provide sensing, actuating and energy harvesting functions. The bimetallic strips include a positive magnetostrictive Fe-based alloy layer and a flexible layer. The flexible layer may be a negative magnetostrictive layer or a permanent magnet layer. One or more permanent magnet materials may also be used in the arrangement. The bimetallic strips are inexpensive and easily manufactured, and have characteristics that enhance sensing and actuator applications, and enables energy harvesting.
    Type: Application
    Filed: July 27, 2010
    Publication date: November 18, 2010
    Applicant: The United States of America, Secretary of the Navy
    Inventors: Arthur E. Clark, Marilyn Wun-Fogle, James B. Restorff
  • Patent number: 7718279
    Abstract: An epitaxial Ni3FeN film with unique magnetic properties such as single magnetic domain (even in a large scale 0.5?×0.5?), which rotates coherently in response to the desired switching field with a very sharp transition is described. The magnetic hysteresis loop of this new magnetic nitride is close to the perfect ideal square with the same value of saturation magnetization, remnant magnetization, and magnetization right before switching (domain reversal). The switching field is tunable which make this material more attractive for magneto-resistive devices such as MRAM's, read heads and magnetic sensors.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: May 18, 2010
    Assignee: Board of Trustees of Michigan State University
    Inventor: Reza Loloee