Metal Coating Patents (Class 427/132)
  • Patent number: 9919550
    Abstract: A recording medium and a method for making the recording medium are disclosed. The recording medium includes a core substrate. The core substrate includes a base having two opposed surfaces. The base includes from about 40% to about 70% organic material and from about 30% to about 60% inorganic material. The core substrate also includes a mineral coating layer disposed on one or both of the two opposed surfaces of the base. The mineral coating layer has a water-soluble or water-dispersible binder and mineral materials. An adhesion layer is disposed on the mineral coating layer. A surface treatment layer is disposed on the adhesion layer, and the surface treatment layer includes organic fibrous material.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: March 20, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Lokendra Pal, Xulong Fu, Ronald J. Selensky, Joaquin Sanchez Caso
  • Patent number: 9040407
    Abstract: A method including depositing an alloying layer along a sidewall of an opening and in direct contact with a seed layer, the alloying layer includes a crystalline structure that cannot serve as a seed for plating a conductive material, exposing the opening to an electroplating solution including the conductive material, the conductive material is not present in the alloying layer, applying an electrical potential to a cathode causing the conductive material to deposit from the electroplating solution onto the cathode exposed at the bottom of the opening and causing the opening to fill with the conductive material, the cathode includes an exposed portion of the seed layer and excludes the alloying layer, and forming a first intermetallic compound along an intersection between the alloying layer and the conductive material, the first intermetallic compound is formed as a precipitate within a solid solution of the alloying layer and the conductive material.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: May 26, 2015
    Assignee: International Business Machines Corporation
    Inventors: Mukta G. Farooq, John A. Fitzsimmons, Troy L. Graves-Abe
  • Publication number: 20150111061
    Abstract: A method to increase the damping of a substrate using a face-centered cubic ferromagnetic damping coating having high damping loss attributes when a strain amplitude is 500-2000 micro-strain, and/or maximum damping loss attributes that occurs when the strain amplitude is greater than 250 micro-strain, and a turbine component having a face-centered cubic ferromagnetic damping coating.
    Type: Application
    Filed: October 22, 2013
    Publication date: April 23, 2015
    Inventor: Mo-How Herman Shen
  • Publication number: 20150111062
    Abstract: A method to increase the damping of a substrate using a face-centered cubic ferromagnetic damping coating having high damping loss attributes when a strain amplitude is 500-2000 micro-strain, and/or maximum damping loss attributes that occurs when the strain amplitude is greater than 250 micro-strain, and a turbine component having a face-centered cubic ferromagnetic damping coating.
    Type: Application
    Filed: October 22, 2013
    Publication date: April 23, 2015
    Inventor: Mo-How Herman Shen
  • Patent number: 9005699
    Abstract: A method for manufacturing a magnetic recording medium includes the steps of (a) forming a perpendicular magnetic recording layer and (b) applying an ion beam to regions between tracks of the perpendicular magnetic recording layer so as to form separation regions for magnetically separating the tracks from each other. In the step (a), a continuous film layer composed of a multilayer film is formed, and CoB layers and Pd layers are laminated in the multilayer film. In the step (b), the CoB layers and the Pd layers are melted by the ion beam so as to form an alloy of metals contained in the CoB layers and the Pd layers to thereby form the separation regions.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: April 14, 2015
    Assignee: WD Media, LLC
    Inventors: Yoshiaki Sonobe, Teiichiro Umezawa, Koichi Wago
  • Publication number: 20150086710
    Abstract: Provided is a method for producing an RFeB-based magnet, the method including: disposing a nozzle so as to be opposed to an attachment surface of a base material that is a sintered magnet or hot-plastic worked magnet composed of an RFeB-based magnet containing a light rare earth element RL that is at least one element selected from the group consisting of Nd and Pr, Fe, and B; ejecting a mixture, from the nozzle, obtained by mixing an organic solvent and an RH-containing powder containing a heavy rare earth element RH that is at least one element selected from the group consisting of Dy, Tb and Ho so as to attach the mixture to the attachment surface; and heating the base material together with the mixture.
    Type: Application
    Filed: September 22, 2014
    Publication date: March 26, 2015
    Applicant: DAIDO STEEL CO., LTD.
    Inventor: Shinobu TAKAGI
  • Patent number: 8935982
    Abstract: The present invention discloses a mask pattern transferring device and a method of preparing a mask pattern transferring device. The mask pattern transferring device comprises: a magnetization head disposed on a magnetization head carrying device, for magnetizing composite powders each comprising a core of ferromagnetic metal and an outer resin film; a rotary roller formed of a non-ferromagnetic material, for adsorbing the composite powders magnetized by the magnetization head; a demagnetization head disposed at a downstream of the magnetization head in the rotating direction of the rotary roller, for demagnetizing the magnetized composite powders adsorbed by the rotary roller; and a collecting container, the outer edge of which is tangent with one side of the rotary roller, and which is disposed at the downstream of the magnetization head along the periphery of the rotary roller to collect the demagnetized composite powders.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: January 20, 2015
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Weifeng Zhou, Jian Guo, Xing Ming
  • Patent number: 8932667
    Abstract: A method including forming a multilayer structure. The multilayer structure includes a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The multilayer structure also includes an intermediate layer comprising the first component and a second component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The second component is different than the first component. The multilayer structure further includes a cap layer comprising the first component. The method further includes heating the multilayer structure to an annealing temperature to cause a phase transformation of the intermediate layer. Also a hard magnet including a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The hard magnet also includes a cap layer comprising the first component. The hard magnet further includes an intermediate layer between the seed layer and the cap layer.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: January 13, 2015
    Assignee: Seagate Technology LLC
    Inventors: Jiaoming Qiu, Younghua Chen, Xilin Peng, Shaun McKinlay, Eric W. Singleton, Brian W. Karr
  • Patent number: 8852677
    Abstract: A method for fabricating a synthetic antiferromagnetic device, includes depositing a magnesium oxide spacer layer on a reference layer having a first and second ruthenium layer, depositing a cobalt iron boron layer on the magnesium oxide spacer layer; and depositing a third ruthenium layer on the cobalt iron boron layer, the third ruthenium layer having a thickness of approximately 0-18 angstroms.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: October 7, 2014
    Assignee: International Business Machines Corporation
    Inventors: David W. Abraham, Michael C. Gaidis, Janusz J. Nowak, Daniel C. Worledge
  • Patent number: 8846136
    Abstract: PROBLEM: To provide a production method of an anisotropic rare earth magnet capable of being enhanced in coercivity without adding a large amount of a rare metal such as Dy and Tb. MEANS FOR RESOLUTION: A production method of a rare earth magnet, comprising a step of bringing a compact obtained by applying hot working to impart anisotropy to a sintered body having a rare earth magnet composition into contact with a low-melting-point alloy melt containing a rare earth element.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: September 30, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tetsuya Shoji, Noritaka Miyamoto, Shinya Omura, Daisuke Ichigozaki, Takeshi Yamamoto
  • Publication number: 20140286817
    Abstract: The present invention relates to a method of producing a large amount of hard-soft magnetic nanocomposite powder in short time. The hard-soft magnetic nanocomposite powder of present invention has some merits such as independence from resource supply problem of rare earth elements and low price and can overcome physical and magnetic limitations possessed by the conventional ferrite monophased material.
    Type: Application
    Filed: January 9, 2013
    Publication date: September 25, 2014
    Inventors: Jinbae Kim, Jongryoul Kim, Sanggeun Cho, Namseok Kang
  • Patent number: 8840955
    Abstract: A method of manufacturing a magnetic recording medium is disclosed, as well as a magnetic recording medium manufactured by the method. In the manufacturing method, the uneven pattern has magnetic recording elements in protruding portions formed above a substrate, and depressed portions between the recording elements are filled with a filling material. The method allows a high quality magnetic recording medium to be manufactured inexpensively by eliminating the process of removing excess filling material used to fill depressions between magnetic recording elements, because the method allows material to be filled only in the depressed portions of an uneven pattern. The method includes a technique rendering the wettability of the protruding portion surfaces and the depressed portion surfaces different prior to the process of filling with the filling material.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: September 23, 2014
    Assignee: Fuji Electric Co., Ltd.
    Inventor: Narumi Sato
  • Publication number: 20140272470
    Abstract: Apparatus for recording data and method for making the same. In accordance with some embodiments, a magnetic layer is supported by a substrate and comprises a magnetic magnetic material, a non-magnetic material, and an energy assisted segregation material. The segregation material enhances segregation of the non-magnetic material into grain boundaries within the layer at an elevated, moderate energy level.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Chun Wang, Connie Liu, Thomas P. Nolan, Kueir-Weei Chour
  • Patent number: 8795764
    Abstract: An apparatus includes a substrate and a magnetic layer coupled to the substrate. The magnetic layer includes an alloy that has magnetic hardness that is a function of the degree of chemical ordering of the alloy. The degree of chemical ordering of the alloy in a first portion of the magnetic layer is greater than the degree of chemical ordering of the alloy in a second portion of the magnetic layer, and the first portion of the magnetic layer is closer to the substrate than the second portion of the magnetic layer.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: August 5, 2014
    Assignee: Seagate Technology LLC
    Inventors: Yingguo Peng, Xiaowei Wu, Ganping Ju, Bin Lu
  • Patent number: 8734894
    Abstract: A method of depositing material onto a base portion of a wafer is disclosed. The method includes forming a bevel into a portion of a surface of the base portion of the wafer and depositing a first layer of conductive material onto the beveled portion of the base portion so that part of the first layer includes a wedge shape above the surface of the base portion. A second layer of conductive material is deposited onto the base portion including the portion of the base portion onto which the first layer of material is deposited.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: May 27, 2014
    Assignee: Seagate Technology LLC
    Inventors: David Chris Seets, Chang Xie, Christopher J. Cote, Karen Virginia Rud
  • Publication number: 20140141224
    Abstract: In some embodiments, the present disclosure pertains to methods of making carbon foams. In some embodiments, the methods comprise: (a) dissolving a carbon source in a superacid to form a solution; (b) placing the solution in a mold; and (c) coagulating the carbon source in the mold. In some embodiments, the methods of the present disclosure further comprise a step of washing the coagulated carbon source. In some embodiments, the methods of the present disclosure further comprise a step of lyophilizing the coagulated carbon source. In some embodiments, the methods of the present disclosure further comprise a step of drying the coagulated carbon source. In some embodiments, the methods of the present disclosure also include steps of infiltrating the formed carbon foams with nanoparticles or polymers. Further embodiments of the present disclosure pertain to the carbon foams formed by the aforementioned methods.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 22, 2014
    Applicant: William Marsh Rice University
    Inventors: Matteo Pasquali, Tien Yi Theresa Hsu Whiting, Francesca Mirri, Bryan Thomas Whiting
  • Publication number: 20140093701
    Abstract: Methods of forming a layer of magnetic material on a substrate, the method including: configuring a substrate in a chamber; controlling the temperature of the substrate at a substrate temperature, the substrate temperature being at or below about 250° C.; and introducing one or more precursors into the chamber, the one or more precursors including: cobalt (Co), nickel (Ni), iron (Fe), or combinations thereof, wherein the precursors chemically decompose at the substrate temperature, and wherein a layer of magnetic material is formed on the substrate, the magnetic material including at least a portion of the one or more precursors, and the magnetic material having a magnetic flux density of at least about 1 Tesla (T).
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Sarbeswar Sahoo, Meng Zhu, Michael C. Kautzky
  • Publication number: 20140050843
    Abstract: A disk processing system having a heater chamber and dual single-sided sputter chambers each with a sustaining heater.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 20, 2014
    Applicant: WD MEDIA, INC.
    Inventors: Chang B. YI, Hongling LIU, Hua YUAN, Tatsuru TANAKA
  • Patent number: 8619467
    Abstract: Multi-period structures exhibiting giant magnetoresistance (GMR) are described in which the exchange coupling across the active interfaces of the structure is ferromagnetic.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: December 31, 2013
    Assignee: Integrated Magnetoelectronics
    Inventors: E. James Torok, Richard Spitzer, David L. Fleming, Edward Wuori
  • Patent number: 8551578
    Abstract: A method for patterning a magnetic thin film on a substrate includes: providing a pattern about the magnetic thin film, with selective regions of the pattern permitting penetration of energized ions of one or more elements. Energized ions are generated with sufficient energy to penetrate selective regions and a portion of the magnetic thin film adjacent the selective regions. The substrate is placed to receive the energized ions. The portion of the magnetic thin film is subjected to thermal excitation. The portions of the magnetic thin film are rendered to exhibit a magnetic property different than selective other portions. A method for patterning a magnetic media with a magnetic thin film on both sides of the media is also disclosed.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: October 8, 2013
    Assignee: Applied Materials, Inc.
    Inventors: Omkaram Nalamasu, Steven Verhaverbeke, Majeed Foad, Mahalingam Venkatesan, Nety M. Krishna
  • Patent number: 8535766
    Abstract: A method for patterning a magnetic thin film on a substrate includes: providing a pattern about the magnetic thin film, with selective regions of the pattern permitting penetration of energized ions of one or more elements. Energized ions are generated with sufficient energy to penetrate selective regions and a portion of the magnetic thin film adjacent the selective regions. The substrate is placed to receive the energized ions. The portions of the magnetic thin film are rendered to exhibit a magnetic property different than selective other portions. A method for patterning a magnetic media with a magnetic thin film on both sides of the media is also disclosed.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: September 17, 2013
    Assignee: Applied Materials, Inc.
    Inventors: Steven Verhaverbeke, Omkaram Nalamasu, Majeed Foad, Mahalingam Venkatesan, Nety M. Krishna
  • Patent number: 8449948
    Abstract: A method for providing a structure in a magnetic recording transducer is described. The method includes plating a first layer in a plating bath using a first plurality of plating conditions. The first layer has a first galvanic potential. The method also includes modifying the plating bath and/or the first plurality of plating conditions to provide a modified plating bath and/or a second plurality of plating conditions. The method further includes plating a second layer using the modified plating bath and/or the second plurality of plating conditions. The second layer has a second galvanic potential. The first galvanic potential is between the second galvanic potential and a third galvanic potential of a third layer if the third layer adjoins the first layer. The second galvanic potential is between the first galvanic potential and the third galvanic potential of the third layer if the third layer adjoins the second layer.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: May 28, 2013
    Assignee: Western Digital (Fremont), LLC
    Inventors: Jose Antonio Medina, Keith Y. Sasaki
  • Patent number: 8440331
    Abstract: A magnetic material is disclosed including a two-dimensional array of carbon atoms and a two-dimensional array of nanoholes patterned in the two-dimensional array of carbon atoms. The magnetic material has long-range magnetic ordering at a temperature below a critical temperature Tc.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: May 14, 2013
    Assignee: University of Utah
    Inventor: Feng Liu
  • Patent number: 8435596
    Abstract: An oxidizing method and oxidizing apparatus in which a plasma generating chamber having an oxidizing gas supply port and a substrate processing chamber having an exhaust port and internally having a substrate susceptor are connected via a partition having a number of through holes, a plasma of an oxidizing gas supplied into the plasma generating chamber is generated, and an oxide layer is formed on a substrate surface by supplying the generated active species onto a substrate are characterized in that the partition is connected to a power supply via a switching mechanism such that a positive, negative, or zero voltage is applied to the partition, and an oxidation process is performed by changing the ratio of radicals, positive ions, and negative ions in the active species supplied onto the substrate by switching the voltages at least once during the oxidation process.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: May 7, 2013
    Assignee: Canon Anelva Corporation
    Inventors: Yoshinori Nagamine, Naoki Watanabe
  • Patent number: 8420160
    Abstract: The present invention provides a method for producing a sintered NdFeB magnet having high coercivity and capable of being brought into applications without lowering its residual magnetic flux density or maximum energy product and without reprocessing. The method for producing a sintered NdFeB magnet according to the present invention includes applying a substance containing dysprosium (Dy) and/or terbium (Tb) to the surface of the sintered NdFeB magnet forming a base body and then heating the magnet to diffuse Dy and/or Tb through the grain boundary and thereby increase the coercivity of the magnet.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: April 16, 2013
    Assignee: Intermetallics Co., Ltd.
    Inventor: Masato Sagawa
  • Patent number: 8329001
    Abstract: To provide a filmy structure of a nanometer size having a phase-separated structure effective for the case where a compound can be formed between two kinds of materials. A structure constituted by a first member containing a compound between an element A except both Si and Ge and SinGe1-n (where 0?n?1) and a second member containing one of the element A and SinGe1-n (where 0?n?1), in which one of the first member and the second member is a columnar member, formed on a substrate, whose side face is surrounded by the other member, the ratio Dl/Ds of an average diameter Dl in the major axis direction to an average diameter Ds in the minor axis direction of a transverse sectional shape of the columnar member is less than 5, and the element A is one of Li, Na, Mg, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Rb, Sr, Y, Zr, Nb, Mo, Ru, Rh, Pd, Cs, Ba, La, Hf, Ta, W, Re, Os, Ir, Pt, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and B.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: December 11, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiro Yasui, Ryoko Horie, Toru Den
  • Patent number: 8323806
    Abstract: A rare-earth magnet includes a magnet body made of an R—Fe—B based rare-earth magnet material (where R is at least one rare-earth element) and a metal film that has been deposited on the surface of the magnet body. The magnet further includes a plurality of reaction layers between the magnet body and the metal film. The reaction layers include: a first reaction layer, which contacts with at least some of R2Fe14B type crystals, included in the magnet body, to have received the rare-earth element that has been included in the R2Fe14B type crystals; and a second reaction layer, which is located between the first reaction layer and the metal film and which has a lower rare-earth element concentration than that of the first reaction layer.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: December 4, 2012
    Assignee: Hitachi Metals, Ltd.
    Inventor: Tomoki Fukagawa
  • Patent number: 8323728
    Abstract: A method for making an article comprising a multilayered structure comprising a series of magnetic layers is provided. The method includes providing a substrate and depositing a series of magnetic layers on the substrate and disposing insulating layers between successive magnetic layers. Each magnetic layer has a thickness of at least about 2 micrometers and magnetic material has an average grain size less than 200 nm.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: December 4, 2012
    Assignee: General Electric Company
    Inventors: Luana Emiliana Iorio, Pazhayannur Ramanathan Subramanian
  • Patent number: 8313797
    Abstract: Provided is a method for in-situ coating a substrate or matrix with magnetic metal nanoparticles. A metal salt, which may be organic or inorganic, is introduced into a solution of liquid polyol. In the presence of mechanical stirring and heat, a reduction process occurs wherein the magnetic metal nanoparticles precipitate out of solution and deposit or attach to one or more surfaces of the substrate. The concentration of reaction precursors, combined with the polyol, may be varied to control the size and shape of the magnetic nanoparticles.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: November 20, 2012
    Assignee: Teledyne Scientific & Imaging, LLC
    Inventors: Julia J. Mack, Brian N. Cox, Vivek Mehrotra, Ten-Luen T. Liao, Rahul Ganguli
  • Patent number: 8298611
    Abstract: A method of fabricating a discrete track magnetic recording media. A base layer is provided onto which repeating and alternating magnetic layer and non-magnetic layers are deposited. The thickness of the magnetic layer corresponds to the width of the track of the recording media. A cylindrical rod can be used as the base layer, such that the alternating magnetic and non-magnetic layers spiraling or concentric layers around the rod. The resulting media layer can be cut or sliced into individual magnetic media or used to imprint other media discs with the discrete pattern of the media layer.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: October 30, 2012
    Assignee: Seagate Technology LLC
    Inventors: Nurul Amin, Sining Mao
  • Publication number: 20120164321
    Abstract: An electric field sensor is obtained by directly forming an electrooptical film of Fabry-Perot resonator structure on a polished surface at a tip of an optical fiber by an aerosol deposition method.
    Type: Application
    Filed: March 5, 2012
    Publication date: June 28, 2012
    Applicant: NEC CORPORATION
    Inventors: Masafumi NAKADA, Mizuki IWANAMI, Keishi OOHASHI, Norio MASUDA
  • Patent number: 8133332
    Abstract: 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 L1o phase FePt.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: March 13, 2012
    Assignee: Seagate Technology LLC
    Inventors: Jiaoming Qiu, Yonghua Chen, Ganping Ju
  • Publication number: 20120058259
    Abstract: An aqueous nickel phosphorus tin alloy electroless plating bath and process for depositing a nickel phosphorus tin alloy onto a substrate, particularly an aluminum substrate for memory disk applications, wherein the nickel phosphorus tin alloy deposit provides enhanced thermal stability, as defined by the inhibition of crystallization and suppression of magnetization upon high temperature annealing when compared to typical NiP deposits.
    Type: Application
    Filed: August 22, 2011
    Publication date: March 8, 2012
    Applicant: OMG ELECTRONIC CHEMICALS, LLC
    Inventors: Aurora Marie Fojas NYE, Jerry G. DU, Robert C. ANDRE
  • Patent number: 8119266
    Abstract: Provided are a magnetic recording medium substrate whereupon a magnetic layer can be regularly formed in a recording area, a magnetic recording medium and a method for manufacturing the magnetic recording medium substrate. A plurality of recording areas wherein the magnetic layer is to be formed are formed on the surface of the disk-shaped magnetic recording medium substrate. The size of the recording area is an integral multiple of a lattice constant of a unit lattice of a single crystal structure constituting the magnetic layer. For instance, the width of a protruding section (3) to be used as the recording area is an integral multiple of the lattice constant of the unit lattice of the single crystal structure configuring the magnetic layer.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: February 21, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Hideki Kawai
  • Patent number: 8048492
    Abstract: A magnetoresistive effect element is produced by forming a first magnetic layer, a spacer layer including an insulating layer and a conductive layer which penetrates through the insulating layer and passes a current, on the first magnetic layer, and a second magnetic layer all of which or part of which is treated with ion, plasma or heat, on the formed spacer layer.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: November 1, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideaki Fukuzawa, Hiromi Yuasa, Yoshihiko Fuji, Hitoshi Iwasaki
  • Patent number: 8039045
    Abstract: An object of the present invention is to provide a plating method on a glass base plate. The method allows forming a plating film on a base plate composed of a glass material with excellent adhesivity and homogeneity by means of an electroless plating method even to a thickness of 1 ?m or more. Before forming a plating film by a step of electroless plating S6, a surface treatment process is conducted on a surface of the base plate composed of a glass material. The surface treatment process comprises at least a step of glass activation treatment S2 to increase quantity of silanol groups on the surface of the base plate at least by a factor of two using an aqueous solution of diluted acid, a step of silane coupling agent treatment S3, a step of palladium catalyst treatment S4, and a step of palladium bonding treatment S5.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: October 18, 2011
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Youichi Tei, Akira Iso, Kazuhito Higuchi, Hajime Kurihara, Hiroyuki Uwazumi
  • Patent number: 8034404
    Abstract: A method for producing a white powder, which includes forming on a surface of a base particle a titanium oxide film and a metallic silver film contiguously one upon another in this order, wherein the base particle includes a magnetic material, and wherein said step of forming on the surface of the base particle the titanium oxide film includes dispersing the base particle in a buffer solution and adding a titanium salt aqueous solution while agitating the dispersion.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: October 11, 2011
    Assignees: Nittetsu Mining Co., Ltd.
    Inventors: Akira Kishimoto, Takafumi Atarashi, Shinichi Ogura, Kiyoshi Hoshino, Tetsurou Hoshiba, Katsuto Nakatsuka
  • Patent number: 7993497
    Abstract: In a magnetic disk having at least a glass substrate, a plurality of underlayers formed over the glass substrate, and a magnetic layer formed over the plurality of underlayers, at least one of the underlayers is an amorphous underlayer containing a VIa group element and carbon and, given that the remanent magnetization in a circumferential direction of the disk is Mrc and the remanent magnetization in a radial direction of the disk is Mrr, the magnetic disk has a magnetic anisotropy in which Mrc/Mrr being a ratio between Mrc and Mrr exceeds 1.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: August 9, 2011
    Assignee: WD Media (Singapore) Pte. Ltd.
    Inventors: Keiji Moroishi, Chor Boon Ang
  • Publication number: 20110129692
    Abstract: A magnetic recording medium comprises: (a) a non-magnetic substrate having a surface; and (b) a stack of thin film layers on the substrate surface, including a layer of a magnetic alloy material with a stabilized hexagonal close-packed (“hcp”) crystal structure, comprising: (i) a major amount of a ferromagnetic element with a first hcp crystal structure having a first c/a ratio, where “c” is a lattice parameter of the unique symmetry axis of the hcp structure along which a preferred direction of magnetization lies and “a” is a lattice parameter along a direction perpendicular to the c axis; (ii) a minor amount of a non-magnetic element with a face-centered cubic (fcc) crystal structure; and (iii) a minor amount of at least one hcp-stabilizing element.
    Type: Application
    Filed: September 13, 2010
    Publication date: June 2, 2011
    Applicant: Seagate Technologies LLC
    Inventor: Thomas Patrick Nolan
  • Patent number: 7897201
    Abstract: A method is for manufacturing a magnetoresistance effect element having a magnetization fixed layer, a non-magnetic intermediate layer, and a magnetization free layer being sequentially stacked. The method includes: forming at least a part of a magnetic layer that is to become either one of the magnetization fixed layer and the magnetization free layer; forming a function layer including at least one of an oxide, a nitride, and a fluoride on the part of the magnetic layer; and removing a part of the function layer by exposing the function layer to either one of an ion beam and plasma irradiation.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: March 1, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiromi Yuasa, Hideaki Fukuzawa, Yoshihiko Fuji, Hitoshi Iwasaki
  • Patent number: 7887880
    Abstract: A stabilized, chemically reactive, metallic nano-material effective for degradation of chlorinated organic compounds in soils, sediments and groundwater. The nano-material is composed of a magnetic metal nanoparticle and a carbohydrate stabilizer bound to the nanoparticle. The preferred metal nanoparticle is iron and the preferred carbohydrate stabilizer is either a starch or a water soluble cellulose such as sodium carboxymethyl cellulose. The nanoparticle may be either mono-metallic, bi-metallic or multi-metallic in nature, but is preferably bi-metallic wherein it is coated with a secondary catalytic metal coating, preferably palladium. A method of making the metallic nano-material is further disclosed wherein a solution of the metal nanoparticle and carbohydrate stabilizer is prepared, and the nanoparticle is then reduced under inert conditions.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: February 15, 2011
    Assignee: Auburn University
    Inventors: Dongye Zhao, Feng He
  • Patent number: 7879471
    Abstract: A magnetic recording medium substrate has a polyester film having metallic oxide-containing layers (layers M) formed on both the surfaces, one layer on each surface, the layers M having a thickness of 50 to 200 nm each, characterized in that the magnetic recording medium substrate has a total light transmittance of 0 to 75% and a surface resistivity of 1×102 to 1×1013? on each surface.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: February 1, 2011
    Assignee: Toray Industries, Inc.
    Inventors: Masato Horie, Makoto Sato, Takuji Higashioji, Yukari Nakamori, Hiroaki Watanabe
  • Publication number: 20100323219
    Abstract: Disclosed herein are methods and processes for making FeRh/FePt nanostructures and the use of these FeRh—FePt nanostructures as a magnetic recording media.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 23, 2010
    Inventor: Devesh Kumar Misra
  • Patent number: 7851014
    Abstract: Magnetic recording media having a magnetic layer with an easy magnetization axis lying about 35° out of plane of the magnetic layer is disclosed. This media has a reduced total magnetic layer thickness and higher signal, while improving the media signal-to-noise ratio (SNR).
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: December 14, 2010
    Assignee: Seagate Technology LLC
    Inventor: Thomas Patrick Nolan
  • Publication number: 20100285376
    Abstract: Disclosed is a magnetic catalyst formed by a single or multiple nano metal shells wrapping a carrier, wherein at least one of the metal shells is iron, cobalt, or nickel. The magnetic catalyst with high catalyst efficiency can be applied in a hydrogen supply device, and the device can be connected to a fuel cell. Because the magnetic catalyst can be recycled by a magnet after generating hydrogen, the practicability of the noble metals such as Ru with high catalyst efficiency is dramatically enhanced.
    Type: Application
    Filed: July 14, 2009
    Publication date: November 11, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chan-Li Hsueh, Cheng-Hong Liu, Jie-Ren Ku, Ya-Yi Hsu, Cheng-Yen Chen, Reiko Ohara, Shing-Fen Tsai, Chien-Chang Hung, Ming-Shan Jeng, Fanghei Tsau
  • Publication number: 20100264358
    Abstract: Provided is a method for in-situ coating a substrate or matrix with magnetic metal nanoparticles. A metal salt, which may be organic or inorganic, is introduced into a solution of liquid polyol. In the presence of mechanical stirring and heat, a reduction process occurs wherein the magnetic metal nanoparticles precipitate out of solution and deposit or attach to one or more surfaces of the substrate. The concentration of reaction precursors, combined with the polyol, may be varied to control the size and shape of the magnetic nanoparticles.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 21, 2010
    Inventors: Julia J. Mack, Brian N. Cox, Vivek Mehrotra, Ten-Luen T. Liao, Rahul Ganguli
  • Patent number: 7794783
    Abstract: A wear-resistant article of manufacture, such as a screen, is produced by the method of providing a screen having a front face, a rear face, and openings extending through the screen from the front face to the rear face, contacting at least a portion of the screen with a coating material comprising ferromagnetic or paramagnetic hard particles and a braze material, subjecting at least a portion of the screen to a magnetic field during at least a portion of the contacting step, and transforming the coating material to a wear-resistant coating comprising the hard particles distributed in the braze material.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: September 14, 2010
    Assignee: Kennametal Inc.
    Inventors: Vaishali Bhagwanbhai Patel, Donald W. Bucholz, Kevin Michael Singer
  • Patent number: 7785662
    Abstract: There is provided a method for manufacturing a magnetoresistive element having a magnetization pinned layer, a magnetization free layer, and a spacer layer including an insulating layer arranged between the magnetization pinned layer and the magnetization free layer and current paths passing through the insulating layer. The method includes, in producing the spacer layer, depositing a first non-magnetic metal layer forming the current paths, depositing a second metal layer to be converted into the insulating layer on the first non-magnetic metal layer, and performing two stages of oxidation treatments in which a partial pressure of an oxidizing gas in a first oxidation treatment is set to 1/10 or less of a partial pressure of an oxidizing gas in a second oxidation treatment, and the second metal layer being irradiated with an ion beam or a RF plasma of a rare gas in the first oxidation treatment.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: August 31, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshihiko Fuji, Hideaki Fukuzawa, Hiromi Yuasa, Hitoshi Iwasaki
  • Patent number: 7776387
    Abstract: A method for manufacturing a magneto-resistance effect element includes: forming a first magnetic layer; forming a first metallic layer, on the first magnetic layer, mainly containing an element selected from the group consisting of Cu, Au, Ag; forming a functional layer, on the first metallic layer, mainly containing an element selected from the group consisting of Si, Hf, Ti, Mo, W, Nb, Mg, Cr and Zr; forming a second metallic layer, on the functional layer, mainly containing Al; treating the second metallic layer by means of oxidizing, nitriding or oxynitiriding so as to form a current confined layer including an insulating layer and a current path with a conductor passing a current through the insulating layer; and forming, on the current confined layer, a second magnetic layer.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: August 17, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshihiko Fuji, Hideaki Fukuzawa, Hiromi Yuasa
  • Publication number: 20100163520
    Abstract: Methods for fabricating a device component are provided. A substrate comprising a RIE stop layer, an oxide layer formed on the RIE stop layer, and a RIE-able layer formed on the oxide layer may be provided. A resist layer may be patterned on the RIE-able layer. A metal layer may be formed on portions of the RIE-able layer that are not covered by the resist layer. The resist layer may be removed and an RIE performed to remove exposed portions of the RIE-able layer and portions of the oxide layer beneath the exposed portions of the RIE-able layer. Thereafter, the metal layer may be removed, and the component may be formed in an opening in the oxide layer formed during the RIE.
    Type: Application
    Filed: December 29, 2008
    Publication date: July 1, 2010
    Inventors: Christian R. Bonhote, Jeffrey S. Lille, Ricardo Ruiz