With Post-treatment Of Coating Or Coating Material Patents (Class 427/130)
  • Patent number: 11110541
    Abstract: Two aluminum alloy plates are sandwiched between an anvil and a chip of a horn which is being vibrated by a vibration unit, to perform ultrasonic bonding. A deposit removing unit is provided above the horn. When the horn is vibrated by the vibration unit and raised by an elevator, the chip positioned on the top of the horn comes into contact with a removal section, with the chip being vibrated, to allow the removal section to remove a deposit adhering to the chip.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: September 7, 2021
    Assignee: KEYLEX CORPORATION
    Inventors: Toshimasa Yamane, Kazunari Uehara
  • Patent number: 10832840
    Abstract: A powder for dust cores includes an aggregate of soft magnetic particles, each of which includes a soft magnetic metal particle, and a ferrite film that covers a surface of the soft magnetic metal particle and includes ferrite crystal grains having a spinel structure. A diffraction peak derived from the ferrite crystal grains exists in a powder X-ray diffraction pattern. By a method for producing a powder for dust cores, a raw material powder that includes an aggregate of soft magnetic metal particles is prepared. Furthermore, many ferrite fine particles are formed on a surface of each of the soft magnetic metal particles of the raw material powder. Additionally, the ferrite fine particles are coarsely crystallized through heat treatment to form a ferrite film, which includes ferrite crystal grains having a spinel structure, on the surface of the each of the soft magnetic metal particles.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: November 10, 2020
    Assignee: DENSO CORPORATION
    Inventors: Ken Matsubara, Jung Hwan Hwang, Seishi Utsuno
  • Patent number: 10762940
    Abstract: Multi-period thin-film structures exhibiting giant magnetoresistance (GMR) are described. Techniques are also described by which narrow spacing and/or feature size may be achieved for such structures and other thin-film structures having an arbitrary number of periods.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: September 1, 2020
    Assignee: Integrated Magnetoelectronics Corporation
    Inventor: Edward Wuori
  • Patent number: 10741314
    Abstract: The present invention relates to an anisotropic complex sintered magnet including MnBi with magnetic characteristics enhanced and an atmospheric sintering method for preparing the same. The anisotropic complex sintered magnet including MnBi according to the present invention may implement excellent magnetic characteristics, and thus may replace rare earth bond magnets in the related art, and a continuous process is enabled because the magnet is prepared by an atmospheric sintering method, and a sintering method used in the permanent magnet process in the related art is used as it is, so that the anisotropic complex sintered magnet is economical.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: August 11, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinbae Kim, Yangwoo Byun
  • Patent number: 10516096
    Abstract: Spin transfer torque magnetic random access memory structures, integrated circuits, and methods for fabricating integrated circuits are provided. An exemplary spin transfer torque magnetic random access memory structure has a perpendicular magnetic orientation, and includes a bottom electrode and a base layer over the bottom electrode. The base layer includes a seed layer and a roughness suppression layer. The spin transfer torque magnetic random access memory structure further includes a hard layer over the base layer. Also, the spin transfer torque magnetic random access memory structure includes a magnetic tunnel junction (MTJ) element with a perpendicular orientation over the hard layer and a top electrode over the MTJ element.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: December 24, 2019
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Taiebeh Tahmasebi, Dimitri Houssameddine, Chenchen Wang, Michael Nicolas Albert Tran
  • Patent number: 10192572
    Abstract: According to one embodiment, a magnetic recording head includes a magnetic pole, a stacked body, and a first non-magnetic layer. The stacked body includes a first magnetic layer, a second magnetic layer provided between the first magnetic layer and the magnetic pole, and a non-magnetic intermediate layer provided between the first magnetic layer and the second magnetic layer. The first non-magnetic layer is provided between the second magnetic layer and the magnetic pole, and contacts the magnetic pole and the second magnetic layer. The first magnetic layer has a first thickness and a first saturation magnetic flux density. The second magnetic layer has a second thickness and a second saturation magnetic flux density. A second product of the second thickness and the second saturation magnetic flux density is larger than a first product of the first thickness and the first saturation magnetic flux density.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: January 29, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenichiro Yamada, Shuichi Murakami, Naoyuki Narita, Katsuhiko Koui, Akihiko Takeo, Mariko Shimizu, Hitoshi Iwasaki
  • Patent number: 9984715
    Abstract: A magnetic disk of is provided, the magnetic disk having at least a magnetic layer, a carbon protective layer, and a lubrication layer sequentially provided on a substrate. In an embodiment, the lubrication layer a film formed by a lubricant having a perfluoropolyether compound A having a perfluoropolyether main chain in the structure and also having a hydroxyl group at the end and a compound C obtained from a reaction between a compound B expressed by: [Chemical formula 1] CF3(—O—C2F4)m-(O—CF2)n-OCF3 [m and n in the formula are natural numbers.] and aluminum oxide.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: May 29, 2018
    Assignee: WD Media, LLC
    Inventors: Koichi Shimokawa, Katsushi Hamakubo, Kae Itoh
  • Patent number: 9935261
    Abstract: A magnetic device for magnetic random access memory (MRAM), spin torque MRAM, or spin torque oscillator technology is disclosed wherein a perpendicularly magnetized magnetic tunnel junction (p-MTJ) with a sidewall is formed between a bottom electrode and a top electrode. A first dielectric layer is 3 to 400 Angstroms thick, and formed on the p-MTJ sidewall with a physical vapor deposition RF sputtering process to establish a thermally stable interface with the p-MTJ up to temperatures around 400° C. during CMOS fabrication. The first dielectric layer may comprise one or more of B, Ge, and alloys thereof, and an oxide, nitride, carbide, oxynitride, or carbonitride. The second dielectric layer is up to 2000 Angstroms thick and may be one or more of SiOYNZ, AlOYNZ, TiOYNZ, SiCYNZ, or MgO where y+z>0.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: April 3, 2018
    Assignee: Headway Technologies, Inc.
    Inventors: Sahil Patel, Ru-Ying Tong, Dongna Shen, Yu-Jen Wang, Vignesh Sundar
  • Patent number: 9721606
    Abstract: The magnetic tape has a magnetic layer containing ferromagnetic powder and binder on one surface of a nonmagnetic support, and has a backcoat layer containing nonmagnetic powder and binder on the other surface thereof, wherein the magnetic layer contains one or more components selected from the group consisting of a fatty acid and a fatty acid amide; the backcoat layer has a thickness of less than or equal to 0.30 ?m and contains one or more components selected from the group consisting of a fatty acid and a fatty acid amide; a magnetic layer side C—H derived C concentration is greater than or equal to 45 atom %; and a backcoat layer side C—H derived C concentration is greater than or equal to 35 atom %.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: August 1, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Norihito Kasada
  • Patent number: 9721126
    Abstract: Disclosed are a magnetic bar code chip and a reading method thereof. The magnetic bar code chip comprises binary information bits formed by N rows and M columns of permanent magnet bars and/or null bits, and information identification bits that are peripheral to the binary information bits. The information identification bits are composed of permanent magnet bar identifiers and used for representing a position and a state of the magnetic bar code chip. The permanent magnet bars and the null bits represent 1 and 0 or 0 and 1 respectively.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: August 1, 2017
    Assignee: MultiDimension Technology Co., Ltd.
    Inventors: Weifeng Shen, Songsheng Xue, Zhimin Zhou
  • Patent number: 9721605
    Abstract: Provided is a magnetic tape, which comprises, on a nonmagnetic support, a nonmagnetic layer comprising nonmagnetic powder and binder, and on the nonmagnetic layer, a magnetic layer comprising ferromagnetic powder and binder; wherein at least the magnetic layer comprises one or more components selected from the group consisting of a fatty acid and a fatty acid amide; a quantity of components selected from the group consisting of a fatty acid and a fatty acid amide per unit area of the magnetic tape among components that are extracted from a surface on the magnetic layer side of the magnetic tape is less than or equal to 15.0 mg/m2, and a concentration of carbon, C, that is obtained by X-ray photoelectron spectroscopy conducted at a photoelectron take-off angle of 10 degrees on the surface on the magnetic layer side of the magnetic tape is greater than or equal to 50 atom %.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: August 1, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Masahito Oyanagi, Norihito Kasada, Toshio Tada, Kazuyuki Kitada
  • Patent number: 9711174
    Abstract: Provided is a magnetic tape, which comprises, on a nonmagnetic support, a nonmagnetic layer comprising nonmagnetic powder and binder, and on the nonmagnetic layer, a magnetic layer comprising ferromagnetic powder and binder; wherein a total thickness of the magnetic tape is less than or equal to 4.80 ?m; at least the magnetic layer comprises one or more components selected from the group consisting of a fatty acid and a fatty acid amide; and a C—H derived carbon, C, concentration calculated from a C—H peak area ratio in a C1s spectrum obtained by X-ray photoelectron spectroscopy conducted at a photoelectron take-off angle of 10 degrees on a surface on the magnetic layer side of the magnetic tape is greater than or equal to 45 atom %.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: July 18, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Norihito Kasada, Masahito Oyanagi, Toshio Tada, Kazuyuki Kitada
  • Patent number: 9704527
    Abstract: The magnetic tape has on one surface of a nonmagnetic support a magnetic layer containing ferromagnetic powder and binder, and on the other surface of the nonmagnetic support, a backcoat layer containing nonmagnetic powder and binder, wherein the total thickness of the magnetic tape is less than or equal to 4.80 ?m, the backcoat layer contains one or more components selected from the group consisting of a fatty acid and a fatty acid amide, and a C—H derived carbon, C, concentration calculated from a C—H peak area ratio in a C1s spectrum obtained by X-ray photoelectron spectroscopy conducted at a photoelectron take-off angle of 10 degrees on a surface on the backcoat layer side of the magnetic tape ranges from 35 to 60 atom %.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: July 11, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Norihito Kasada
  • Patent number: 9646643
    Abstract: A method of fabricating a magnetic recording medium sequentially forms a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body. The lubricant layer is formed on a surface of the protection layer by vapor-phase lubrication without exposing the stacked body to atmosphere after forming the protection layer on the stacked body. Nitrogen atoms or oxygen atoms are injected onto the surface of the protection layer after forming the protection layer and before forming the lubricant layer.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: May 9, 2017
    Assignee: SHOWA DENKO K.K.
    Inventor: Ichiro Ota
  • Patent number: 9340705
    Abstract: There is disclosed a fluorine-based surface treating agent for vapor deposition comprising (A) a hydrolyzable group-containing silane modified with a polymer containing a fluorooxyalkylene group and/or a partial hydrolytic condensate, and (B) a polymer containing a fluorooxyalkylene group having a higher weight average molecular weight than component (A), wherein components (A) and (B) are mixed in a weight ratio of from 6:4 to 9:1.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: May 17, 2016
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yuji Yamane, Noriyuki Koike
  • Patent number: 9297075
    Abstract: A plasma deposition apparatus that includes a high-frequency electrode caused to face a deposition target and a ground electrode connected to the deposition target, and deposits a film on the deposition target by using plasma generated between the high-frequency electrode and the ground electrode, wherein the high-frequency electrode includes a first high-frequency electrode caused to face a first deposition target surface of the deposition target, and a second high-frequency electrode caused to face a second deposition target surface on the opposite side of the first deposition target surface, and the first high-frequency electrode, the second high-frequency electrode, and the ground electrode generate plasma between the first high-frequency electrode and the ground electrode for performing deposition on the first deposition target surface and plasma between the second high-frequency electrode and the ground electrode for performing deposition on the second deposition target surface at the same time.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: March 29, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Atsuro Hama
  • Patent number: 9263078
    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: September 17, 2013
    Date of Patent: February 16, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Steven Verhaverbeke, Omkaram Nalamasu, Majeed A. Foad, Mahalingam Venkatesan, Nety M. Krishna
  • Patent number: 9057142
    Abstract: The invention relates to a coating (7) made up of a metal layer (8), in which a lubricant (1) which can be released by wear is embedded. In order to provide a wear-resistant coating (7) which is simply structured and economical to produce, the invention provides for the lubricant (1) to consist of an at least singly branched organic compound (2). The present invention further relates to a self-lubricating component (11) with a coating (7) according to the invention applied at least in certain portions, to a method for producing a coating (7), and also to a coating electrolyte (10) comprising at least one type of metal ions and at least one lubricant (1) consisting of an at least singly branched organic compound (2).
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: June 16, 2015
    Assignees: Tyco Electronics AMP GmbH, Tyco Electronics Corporation
    Inventors: Dominique Freckmann, Helge Schmidt
  • Patent number: 9051636
    Abstract: An organic layer deposition apparatus including a deposition source for discharging a deposition material; a deposition source nozzle unit arranged at a side of the deposition source and including a plurality of deposition source nozzles; a patterning slit sheet arranged opposite to the deposition source nozzle unit and including a plurality of patterning slits; an electrostatic chuck, a substrate being attachable to and detachable from the electrostatic chuck; chuck moving members combined with the electrostatic chuck and configured to move the electrostatic chuck; and guide members to guide movement of the chuck moving members, the chuck moving members including first magnetic force generators, and the guide members including second magnetic force generators corresponding to the first magnetic force generators, the chuck moving members movable on the guide members by magnetic forces generated by the first magnetic force generators and the second magnetic force generators.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: June 9, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dong-Wook Kim
  • Patent number: 9054298
    Abstract: A spin transfer torque magnetic random access memory (STTMRAM) element and a method of manufacturing the same is disclosed having a free sub-layer structure with enhanced internal stiffness. A first free sub-layer is deposited, the first free sub-layer being made partially of boron (B), annealing is performed of the STTMRAM element at a first temperature after depositing the first free sub-layer to reduce the B content at an interface between the first free sub-layer and the barrier layer, the annealing causing a second free sub-layer to be formed on top of the first free sub-layer and being made partially of B, the amount of B of the second free sub-layer being greater than the amount of B in the first free sub-layer.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: June 9, 2015
    Assignee: Avalanche Technology, Inc.
    Inventors: Yuchen Zhou, Yiming Huai
  • Publication number: 20150147481
    Abstract: A method for making a scissoring type current-perpendicular-to-the-plane magnetoresistive sensor with exchange-coupled soft side shields uses oblique angle ion milling to remove unwanted material from the side edges of the upper free layer. All of the layers making up the sensor stack are deposited as full films. The sensor stack is then ion milled to define the sensor side edges. The side regions are then refilled by deposition of an insulating layer. Next, the lower soft magnetic layers of the exchange-coupled side shields are deposited, which also coats the insulating layer up to and past the side edges of the upper free layer. The soft magnetic material adjacent the side edges of the upper free layer is removed by oblique angle ion beam milling. The material for the antiparallel-coupling (APC) layers is deposited, followed by deposition of the material for the upper soft magnetic layers of the exchange-coupled side shields.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 28, 2015
    Applicant: HGST Nertherlands B..V.
    Inventors: Patrick Mesquita Braganca, Jordan Asher Katine, Neil Smith
  • Publication number: 20150138938
    Abstract: According to one embodiment, a magnetic recording medium used in a heat assisted magnetic recording system includes a magnetic recording layer and a metal particle layer in which metal particles are arranged in a dispersed manner on a substrate. In the metal particle layer, percentage content of the metal particles in a second region positioned at an outer periphery side of a first region is higher than that of the first region in a surface direction of the substrate.
    Type: Application
    Filed: March 5, 2014
    Publication date: May 21, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hironori Teguri, Kazutaka Takizawa
  • Publication number: 20150140207
    Abstract: Disclosed herein is a method for preparing an electromagnetic wave shielding material. The preparation method includes: preparing a fiber matrix; sorbing a metal salt precursor to the fiber matrix by dip coating; and bringing the fiber matrix to which the metal salt precursor is sorbed with a basic solution to oxidize the metal salt precursor such that a magnetic substance can be coated onto the fiber matrix. The method can reduce preparation costs by simplifying the preparation process through dip coating without using a high temperature process. Further, the method can also be applied to a fiber matrix which can be affected by temperature, thereby enlarging the preparation and application range of the electromagnetic wave shielding material.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 21, 2015
    Inventors: Myung-Han YOON, Sukwon HONG, Zahid HANIF, Seyeong LEE
  • Publication number: 20150131371
    Abstract: Provided are a magnetic resistance structure, a method of manufacturing the magnetic resistance structure, and an electronic device including the magnetic resistance structure. The method of manufacturing the magnetic resistance structure includes forming a hexagonal boron nitride layer, forming a graphene layer on the boron nitride layer, forming a first magnetic material layer between the boron nitride layer and the graphene layer according to an intercalation process; and forming a second magnetic material layer on the graphene layer.
    Type: Application
    Filed: May 20, 2014
    Publication date: May 14, 2015
    Applicants: Samsung Electronics Co., Ltd., Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Hwansoo SUH, Insu JEON, Min-woo KIM, Young-jae SONG, Min WANG, Qinke WU, Sung-joo LEE, Sung-kyu JANG, Seong-jun JUNG
  • 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
  • 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
  • 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
  • Patent number: 8993071
    Abstract: Embodiments of the present invention provide a manufacturing method that can form a track guide separation area of a magnetic disk substrate constituting a patterned medium represented by a discrete track medium or bit patterned medium suitable for high recording density, uniformly on the whole surface of the magnetic disk substrate, and accurately according to the mask. According to one embodiment, a soft magnetic film, an under coating film, and a magnetic film are formed on a substrate. A mask having an arbitrary pattern shape provided for forming the track guide separation area in the magnetic film is formed on the magnetic film, and the track guide separation area is formed by irradiating ions and electrons onto the surface of the magnetic film and applying an intermittent voltage to the substrate, thereby non-magnetizing the area irradiated.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: March 31, 2015
    Assignee: HGST Netherlands B.V.
    Inventors: Hiroshi Inaba, Hiroshi Kanai, Nobuto Yasui, Toshinori Ono
  • Publication number: 20150087945
    Abstract: A method of making a sensor includes depositing a layer of hydrogel over a substrate, the hydrogel configured to change thickness or volume in response to a selected condition and including a plurality of magnetic particles disposed in the hydrogel so that a magnetic property of the hydrogel changes with changes of thickness or volume of the hydrogel. The hydrogel is sacrificed in selected region(s) of the layer so that the hydrogel outside the selected region(s) forms a plurality of spaced-apart islands of the hydrogel. The islands of the hydrogel are enclosed in an enclosure at least partly permeable to a selected fluid. A sensor for detecting a condition includes the substrate, islands, and a device coil arranged with respect to the hydrogel so that changes in the magnetic property modulate an electrical property of the sensor. A system includes the substrate, islands, and a magnetic-field detector.
    Type: Application
    Filed: December 1, 2014
    Publication date: March 26, 2015
    Inventors: Babak Ziaie, Ronald A. Siegel
  • Publication number: 20150072071
    Abstract: According to one embodiment, there is provided a pattern formation method including coating a substrate or mask layer with a fine particle coating solution containing fine particles including a protective group having a close surface polarity and containing, on at least surfaces thereof, a material selected from the group consisting of Al, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Y, Zr, Sn, Mo, Ta, W, and oxides thereof, a viscosity modifier, and a solvent for adjusting mixing of the viscosity modifier and the fine particles having the protective group, thereby forming a fine particle layer on the substrate or mask layer.
    Type: Application
    Filed: January 27, 2014
    Publication date: March 12, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kaori KIMURA, Kazutaka Takizawa, Akira Fujimoto
  • Publication number: 20150064492
    Abstract: The present disclosure provides materials exhibiting improved properties arising from a surface treatment thereof. In particular, thin films can be provided with a patterned surface, the patterned thin films exhibiting improved properties such as in relation to coercivity, mechanical coupling, and magnetic coupling. The disclosure further provides layered composites comprising one or more patterned thin films. The disclosure also provides methods of forming patterned thin films.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventors: Goran Rasic, Justin Schwartz
  • Publication number: 20150064347
    Abstract: An object of the present invention is to obtain a hard disk substrate that can have a smooth surface of a plating film through electroless NiP plating and does not have deteriorated corrosion resistance against acid solutions. A method for producing a hard disk substrate of the present invention includes a first plating step of immersing a substrate in a first electroless NiP plating bath containing an additive with leveling action, thereby forming a lower layer of the electroless NiP plating film on a surface of the substrate, the lower layer having smaller average surface roughness than the surface; and a second plating step of immersing the substrate that has the lower layer of the electroless NiP plating film formed thereon through the first plating step in a second electroless NiP plating bath, thereby forming an upper layer of the electroless NiP plating film, the upper layer having corrosion resistance against acid solutions.
    Type: Application
    Filed: April 2, 2013
    Publication date: March 5, 2015
    Applicant: Toyo Kohan Co., Ltd.
    Inventors: Gen Ishida, Nobuaki Mukai, Takahiro Yoshida
  • Patent number: 8968874
    Abstract: Microspheres, populations of microspheres, and methods for forming microspheres are provided. One microsphere configured to exhibit fluorescent and magnetic properties includes a core microsphere and a magnetic material coupled to a surface of the core microsphere. About 50% or less of the surface of the core microsphere is covered by the magnetic material. The microsphere also includes a polymer layer surrounding the magnetic material and the core microsphere. One population of microspheres configured to exhibit fluorescent and magnetic properties includes two or more subsets of microspheres. The two or more subsets of microspheres are configured to exhibit different fluorescent and/or magnetic properties. Individual microspheres in the two or more subsets are configured as described above.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: March 3, 2015
    Assignee: Luminex Corporation
    Inventors: Don J. Chandler, Jason Bedre
  • Publication number: 20150056368
    Abstract: Enhanced Hc and Hk in addition to higher thermal stability to 400° C. are achieved in magnetic devices by adding dusting layers on top and bottom surfaces of a spacer in a synthetic antiferromagnetic (SAF) structure to give a RL1/DL1/spacer/DL2/RL2 reference layer configuration where RL1 and RL2 layers exhibit perpendicular magnetic anisotropy (PMA), the spacer induces antiferromagnetic coupling between RL1 and RL2, and DL1 and DL2 are dusting layers that enhance PMA. Dusting layers are deposited at room temperature to 400° C. RL1 and RL2 layers are selected from laminates such as (Ni/Co)n, L10 alloys, or rare earth-transition metal alloys. The reference layer may be incorporated in STT-MRAM memory elements or in spintronic devices including a spin transfer oscillator. A transition layer such as CoFeB/Co may be formed between the RL2 reference layer and tunnel barrier layer in a bottom spin valve design.
    Type: Application
    Filed: October 10, 2014
    Publication date: February 26, 2015
    Inventors: Yu-Jen Wang, Witold Kula, Ru-Ying Tong, Guenole Jan
  • Publication number: 20150050514
    Abstract: A coating method for producing a function layer on mechanically loaded components or surfaces includes providing or applying a first material layer of a first material or substrate matrix having a mechanical flexibility higher than that of a second material on a substrate constituting the component or the surface, respectively, structuring the first material layer such that the material layer surface of the first material layer, which is opposite to the substrate, obtains a three-dimensionally moulded basic structure with projections and recesses, and coating the material layer surface of the first material layer with a second material layer of the second material in such a way that the second material layer adopts substantially the basic structure of the material layer surface with the projections and recesses. Also, surface layer structures can be produced by this method.
    Type: Application
    Filed: March 12, 2013
    Publication date: February 19, 2015
    Inventors: Stefan Storm, Erhard Brandl, Dominik Raps
  • Patent number: 8940419
    Abstract: Provided are a method for production of a hard disk substrate capable of obtaining a smooth surface of a plating film by electroless NiP plating that is not degraded in, but exhibits corrosion resistance against, an acid solution and such a hard disk substrate.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: January 27, 2015
    Assignee: Toyo Kohan Co., Ltd.
    Inventor: Nobuaki Mukai
  • 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: 8927464
    Abstract: Fluidics-induced localized deposition and assembly of materials using a superhydrophobic surface structure is described. A method of localized deposition of a material includes contacting a superhydrophobic substrate comprising raised surface structures with a non-wetting fluid comprising a material to be locally deposited or a precursor thereto, said surface and said fluid selected such that the fluid wets only an upper portion of the raised surface structure; and allowing the material to deposit at the tips of the surface structure.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: January 6, 2015
    Assignee: President and Fellows of Harvard College
    Inventors: Joanna Aizenberg, Benjamin Hatton
  • Patent number: 8920948
    Abstract: According to one embodiment, a patterned magnetic storage medium is disclosed herein. The magnetic storage medium includes a pattern formed on a substrate. The pattern includes at least a first and second feature and an edge defined between the first and second features. Additionally, the magnetic storage medium includes a magnetic layer formed on the pattern. The magnetic layer includes grains separated by a non-magnetic segregant boundary. The segregant boundary is positioned above the edge of the pattern.
    Type: Grant
    Filed: December 31, 2011
    Date of Patent: December 30, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Liesl Folks, Michael K. Grobis, Dan S. Kercher, Ricardo Ruiz, Kentaro Takano, Bruce D. Terris, Qing Zhu
  • Patent number: 8900730
    Abstract: A magnetic data storage medium comprising: an ion doped magnetic recording layer having a continuous grading of coercivity or anisotropy, wherein the coercivity or anisotropy is at a minimum substantially at one side of the magnetic recording layer, and having substantial portion of maximum coercivity or anisotropy at the other side of the magnetic recording layer. Also, a method of fabricating a magnetic data storage medium is included.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: December 2, 2014
    Assignee: International Business Machines Corporation
    Inventors: Charanjit Singh Bhatia, Koashal Kishor Mani Pandey, Nikita Gaur, Siegfried L. Maurer, Ronald W. Nunes
  • Patent number: 8883249
    Abstract: By improving sliding durability while ensuring a high SNR, an improvement in reliability and a further increase in recording density are to be achieved.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: November 11, 2014
    Assignee: WD Media (Singapore) Pte. Ltd.
    Inventors: Toshiaki Tachibana, Takahiro Onoue, Keiichi Kajita
  • Patent number: 8858809
    Abstract: A manufacturing method of a magnetic recording medium includes steps of forming a magnetic recording layer, a first mask layer, a second mask layer containing silicon as primary component, a strip layer, a third mask layer, and a resist layer, a step of patterning the resist layer to provide a pattern, steps of transferring the pattern to the third mask layer, to the strip layer, and to the second mask layer, a step of removing the strip layer by wet etching and of stripping the third mask layer and the resist layer above the magnetic recording layer, steps of transferring the pattern to the first mask layer and to the magnetic recording layer, and a step of stripping the first mask layer remaining on the magnetic recording layer.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: October 14, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akira Watanabe, Kaori Kimura, Kazutaka Takizawa, Takeshi Iwasaki, Tsuyoshi Onitsuka, Akihiko Takeo
  • Patent number: 8852676
    Abstract: A spin toque transfer magnetic random access memory (STTMRAM) element and a method of manufacturing the same is disclosed having a free sub-layer structure with enhanced internal stiffness. A first free sub-layer is deposited, the first free sub-layer being made partially of boron (B), annealing is performed of the STTMRAM element at a first temperature after depositing the first free sub-layer to reduce the B content at an interface between the first free sub-layer and the barrier layer, the annealing causing a second free sub-layer to be formed on top of the first free sub-layer and being made partially of B, the amount of B of the second free sub-layer being greater than the amount of B in the first free sub-layer.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: October 7, 2014
    Assignee: Avalanche Technology, Inc.
    Inventor: Yuchen Zhou
  • Publication number: 20140295073
    Abstract: A method of fabricating a magnetic recording medium by sequentially forming a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body, includes forming the lubricant by depositing a first lubricant on the stacked body after forming the protection layer, by vapor-phase lubrication deposition, without exposing the stacked body to atmosphere, and depositing a second lubricant on the stacked body after depositing the first lubricant, by vapor-phase lubrication deposition, without exposing the stacked body to atmosphere. The first lubricant has a lower molecular mass and a higher chemical polarity than those of the second lubricant.
    Type: Application
    Filed: March 18, 2014
    Publication date: October 2, 2014
    Applicant: SHOWA DENKO K.K.
    Inventors: Takehiko OKABE, Katsuaki To
  • Patent number: 8846137
    Abstract: On manufacturing a magnetic disk having at least a magnetic layer (60), a protective layer (70), and a lubricating layer (80) formed in this order over a substrate (10), the lubricating layer is formed by using a coating solution in which a perfluoropolyether compound having a perfluoropolyether main chain and a hydroxyl group in a structure thereof is dispersed and dissolved in a fluorine-based solvent having a boiling point of 90° C. or more.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: September 30, 2014
    Assignee: WD Media (Singapore) Pte. Ltd.
    Inventors: Koichi Shimokawa, Katsushi Hamakubo, Kae Itoh
  • 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: 20140264142
    Abstract: A method is described for inserting or dispersing quartz within a substrate containing polymers polarizable by an electromagnetic field having electrical resistivity, from an insulator to conductor or vice versa, modifiable by said field. The method involves dispersing in the substrate particles having a sandwich structure including two conductive layers and a layer with piezoelectric characteristics in the middle.
    Type: Application
    Filed: October 9, 2012
    Publication date: September 18, 2014
    Applicant: SPF LOGICA S.R.L.
    Inventors: Giorgio Eberle, Fabio Cappelli, Giuseppe Paronetto
  • Patent number: 8828483
    Abstract: Disclosed is a method of manufacturing a magnetic recording medium having a clear magnetic recording pattern through a simple process. The method includes: forming a magnetic layer on the non-magnetic substrate; forming a mask layer which covers a surface of the magnetic layer; forming a resist layer on the mask layer; patterning the resist layer using a stamp; patterning the mask layer using the resist layer, forming a recess by partially removing a portion of the magnetic layer not covered by the mask layer; forming a non-magnetic layer which covers a surface where a recess is formed; flattening a surface of the non-magnetic layer until the mask layer is exposed; removing an exposed mask layer; removing a protruding portion of the non-magnetic layer; and forming a protective layer which covers a surface where the protruding portion was removed.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: September 9, 2014
    Assignee: Showa Denko K.K.
    Inventors: Shinichi Ishibashi, Manabu Ueda, Akira Sakawaki
  • Publication number: 20140242379
    Abstract: To produce a ferroelectric film formed of a lead-free material. The ferroelectric film according to an aspect of the present invention includes a (K1-XNaX)NbO3 film or a BiFeO3 film having a perovskite structure and a crystalline oxide preferentially oriented to (001) formed on at least one of the upper side and lower side of the (K1-XNaX)NbO3 film or BiFeO3 film, and X satisfies the formula below 0.3?X?0.7.
    Type: Application
    Filed: July 29, 2011
    Publication date: August 28, 2014
    Applicant: YOUTEC CO., LTD.
    Inventors: Takeshi Kijima, Yuuji Honda
  • Publication number: 20140231351
    Abstract: The invention provides permeable magnetically responsive filtration membranes that include a filtration membrane polymer base suitable for fluid filtration; hydrophilic polymers conjugated to the surface of the filtration membrane polymer; and magnetic nanoparticles affixed to the ends of a plurality of the hydrophilic polymers, wherein the hydrophilic polymers are movable with respect to the surface of the filtration membrane polymer surface in the presence of an oscillating magnetic field.
    Type: Application
    Filed: August 8, 2012
    Publication date: August 21, 2014
    Applicants: Colorado State University Research Foundation, The Board of Trustees of the University of Arkansas, Lehrstuhl fur Technische Chemie II, Universitat Duisburg-Essen
    Inventors: Sumith Ranil WICKRAMASINGHE, Xianghong QIAN, Heath H. HIMSTEDT, Mathias ULBRICHT, Michael J. SEMMENS