Magnetic Base Or Coating Patents (Class 427/127)
  • Patent number: 10672545
    Abstract: An object of the present invention is to provide an R-T-B based permanent magnet showing high residual magnetic flux density Br and coercive force HcJ, and further showing the same also after heavy rare earth element is diffused along grain boundaries. Provided is an R-T-B based permanent magnet in which, R is a rare earth element, T is an element other than the rare earth element, B, C, O or N, and B is boron. T at least includes Fe, Cu, Co and Ga, and a total of R content is 28.0 to 30.2 mass %, Cu content is 0.04 to 0.50 mass %, Co content is 0.5 to 3.0 mass %, Ga content is 0.08 to 0.30 mass %, and B content is 0.85 to 0.95 mass %, relative to 100 mass % of a total mass of R, T and B.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: June 2, 2020
    Assignee: TDK CORPORATION
    Inventors: Kiyoyuki Masusawa, Makoto Nakane
  • Patent number: 10672544
    Abstract: An object of the present invention is to provide an R-T-B based permanent magnet showing high residual magnetic flux density Br and coercive force HcJ. Provided is an R-T-B based permanent magnet in which, R is a rare earth element, T is an element other than the rare earth element, B, C, O or N, and B is boron. R at least includes Tb and T at least includes Fe, Cu, Co and Ga, and a total of R content is 28.05 to 30.60 mass %, Cu content is 0.04 to 0.50 mass %, Co content is 0.5 to 3.0 mass %, Ga content is 0.08 to 0.30 mass %, and B content is 0.85 to 0.95 mass %, relative to 100 mass % of a total mass of R, T and B, and Tb concentration reduces from outside to inside of the R-T-B based permanent magnet.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: June 2, 2020
    Assignee: TDK CORPORATION
    Inventors: Kiyoyuki Masusawa, Makoto Nakane
  • Patent number: 10648083
    Abstract: A pre-coating agent composition for a grain-oriented electrical steel sheet, a grain-oriented electrical steel sheet including the same, and a manufacturing method thereof are provided. Particularly, a pre-coating agent composition for a grain-oriented electrical steel sheet including an acid containing boron (B); and a solvent, a grain-oriented electrical steel sheet including the same, and a manufacturing method thereof are provided.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: May 12, 2020
    Assignee: POSCO
    Inventors: Min Soo Han, Soon-Bok Park, Bungkwan Shon
  • Patent number: 10622011
    Abstract: Embodiments herein provide methods of forming a magnetic tunnel junction structure. The method includes forming a film stack that includes: a buffer layer; a seed layer disposed over the buffer layer; a first pinning layer disposed over the seed layer; a synthetic ferrimagnet (SyF) coupling layer disposed over the first pinning layer; a second pinning layer disposed over the SyF coupling layer; a structure blocking layer disposed over the second pinning layer; a magnetic reference layer disposed over the structure blocking layer; a tunnel barrier layer disposed over the magnetic reference layer; a magnetic storage layer disposed over the tunnel barrier layer; a capping layer disposed over the magnetic storage layer; and a hard mask disposed over the capping layer, wherein at least one of the capping layer, the buffer layer, and the SyF coupling layer is not fabricated from Ru; and forming a magnetic tunnel junction structure.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: April 14, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Lin Xue, Chi Hong Ching, Jaesoo Ahn, Mahendra Pakala, Rongjun Wang
  • Patent number: 10607759
    Abstract: Embodiments are directed to a method of forming a laminated magnetic inductor and resulting structures having anisotropic magnetic layers. A first magnetic stack is formed having one or more magnetic layers alternating with one or more insulating layers. A trench is formed in the first magnetic stack oriented such that an axis of the trench is perpendicular to a hard axis of the magnetic inductor. The trench is filled with a dielectric material.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: March 31, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hariklia Deligianni, Bruce B. Doris, Eugene J. O'Sullivan, Naigang Wang
  • Patent number: 10586637
    Abstract: In accordance with the present invention, there are provided: a soft magnetic flattened powder having an average particle diameter, excellent sheet moldability, and a high magnetic permeability; and a method for producing the soft magnetic flattened powder. The soft magnetic flattened powder according to the present invention includes an Fe—Si—Al-based alloy, an average particle diameter D50 being 30 to less than 50 ?m; a coercive force Hc measured by applying a magnetic field in the longitudinal direction of the flattened powder being 176 A/m or less; the ratio of a tap density to a true density being 0.18 or less; a specific surface area BET value being 0.6 m2/g or more; the amount of contained oxygen being 0.6 mass % or less; and the BET value and oxygen value of the soft magnetic powder satisfying expression (1): [oxygen value/BET value?0.50 mg·g/m2 (excluding zero)].
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: March 10, 2020
    Assignee: Sanyo Special Steel Co., Ltd.
    Inventors: Fumihiro Maezawa, Toshiyuki Sawada
  • Patent number: 10557194
    Abstract: A method for depositing a coating of a source material onto a panel is disclosed. The method includes providing a cathodic arc, the cathodic arc including a target surface, the target surface disposed along a target deposition axis and able to emit the source material as a generally cloud of source material vapor and a generally conical stream of liquid particles of the source material. The method further includes positioning the panel relative to the target surface based on a deposition angle, the deposition angle being between the target surface and an outer limit of the generally conical stream of liquid particles o the source material. The method may further include emitting the source material from the target surface as the generally conical cloud of source material vapor and coating the edge with the cloud of source material vapor to provide an edge coating.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: February 11, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Michael Task, Russell A. Beers
  • Patent number: 10546673
    Abstract: The present invention aims to provide a NdFeB system sintered magnet capable of improving the magnetization characteristic. The NdFeB system sintered magnet is a NdFeB system sintered magnet with the c axis oriented in one direction, characterized in that: the median of the grain size of the crystal grains at a section perpendicular to the c axis is 4.5 ?m or less, and the area ratio of the crystal grains having grain sizes of 1.8 ?m or smaller on the aforementioned section is 5% or lower. The median of the grain size is decreased (to 4.5 ?m or less), whereby improve the coercive force is improved. Simultaneously, the area ratio of the crystal grains having grain sizes of 1.8 ?m or smaller is decreased (to 5% or lower) to reduce the number of crystal grains having no magnetic wall formed, whereby the magnetization characteristic is improved.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: January 28, 2020
    Assignee: INTERMETALLICS CO., LTD.
    Inventors: Tetsuhiko Mizoguchi, Masato Sagawa
  • Patent number: 10385442
    Abstract: The present application provides a method for preparing a rare-earth permanent magnetic material with grain boundary diffusion using composite target by vapor deposition, in which the composite target is evaporated and attached to the surface of the NdFeB magnet, and in which medium-high temperature treatment and low temperature aging treatment are employed, resulting in that the coercive force of the magnet is improved significantly and the remanence and the magnetic energy product substantially are not reduced. The advantageous effects of the present application is as follows: the coercive force of the magnet is improved, and meanwhile the defects such as melting pits and crystal grain growth and the like caused by high temperature treatment for the long time are eliminated, and the usage amount of heavy rare-earth is greatly reduced, thereby lowering the cost of the product.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: August 20, 2019
    Assignee: Advanced Technology & Materials Co., Ltd.
    Inventors: Lei Zhou, Tao Liu, De Lin, Xiaojun Yu
  • Patent number: 10351947
    Abstract: A thin-film forming device forms a thin film on a strip-shaped substrate by subjecting the strip-shaped substrate to a surface treatment while conveying the strip-shaped substrate in a state of being laid along an outer peripheral face of a main roll. The thin-film forming device comprises: a main roll chamber accommodating the main roll; a plurality of film formation chambers arranged in a peripheral direction of the main roll, the film formation chambers having partitions disposed radially outward of the main roll; and a main roll cover covering the outer peripheral face of the main roll over which the strip-shaped substrate travels, the main roll cover being provided to the partitions, the main roll cover having a film formation chamber communication component that communicates with the film formation chambers.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: July 16, 2019
    Assignee: TORAY ENGINEERING CO., LTD.
    Inventors: Masamichi Yamashita, Toshiyuki Jinda, Takayoshi Fujimoto, Katsuyoshi Miyashita
  • Patent number: 10290409
    Abstract: A soft magnetic component for a torque sensor, formed by resin-molding a soft magnetic material that contains Ni, Fe in such an amount that Fe/(Fe+Ni) is within a range from 10.0% to 16.0% in terms of mass ratio, and 3.5% by mass to 7.5% by mass of M (the M represents one or more elements selected from among Mo, Nb, Cr, Cu, Ti, and W) and has a saturation magnetostriction of at least ?4.0 ppm and less than 0 ppm, is provided.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: May 14, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Akinori Hashimoto, Akio Morishita
  • Patent number: 10255935
    Abstract: Embodiments herein provide film stacks utilized to form a magnetic tunnel junction (MTJ) structure on a substrate, comprising: a buffer layer; a seed layer disposed over the buffer layer; a first pinning layer disposed over the seed layer; a synthetic ferrimagnet (SyF) coupling layer disposed over the first pinning layer; a second pinning layer disposed over the SyF coupling layer; a structure blocking layer disposed over the second pinning layer; a magnetic reference layer disposed over the structure blocking layer; a tunnel barrier layer disposed over the magnetic reference layer; a magnetic storage layer disposed over the tunnel barrier layer; a capping layer disposed over the magnetic storage layer, wherein the capping layer comprises one or more layers; and a hard mask disposed over the capping layer, wherein at least one of the capping layer, the buffer layer, and the SyF coupling layer is not fabricated from Ru.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: April 9, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Lin Xue, Chi Hong Ching, Jaesoo Ahn, Mahendra Pakala, Rongjun Wang
  • Patent number: 10210895
    Abstract: A magnetic recording medium that includes a substrate, an insulation layer applied onto a surface of the substrate, and a magnetic layer applied onto the insulation layer. The insulation layer is made from a redox-corrosion-inhibiting material. In one embodiment, the insulation layer inhibits redox corrosion by inhibiting electron transfer through the insulation layer (e.g., inhibits electron transfer between the substrate and the magnetic layer).
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: February 19, 2019
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Hiroshi Inaba, Joe Inagaki, Hiroyuki Matsumoto, Hidekazu Kashiwase
  • Patent number: 10203332
    Abstract: An apparatus and method for separating a target material. The apparatus for separating a target matter includes a mixture including a target matter, a density gradient material layer disposed under the mixture and having a greater density than a density of the mixture, magnetic beads including a magnetic material and binding to the target matter to form a complex, and a magnetic field generating device applying a magnetic field to the complex to precipitate the complex at the bottom of the density gradient material layer.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: February 12, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jongmyeon Park
  • Patent number: 10189236
    Abstract: The present invention pertains to the art of floor coverings, and, more particularly to an apparatus for use in securing floor covering units to an underlay and a method of manufacturing said floor covering units and said underlay. More particularly, the present invention relates to an apparatus, method, and method of manufacturing magnetized floor covering units and magnetized underlays for securing magnetized floor covering units.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: January 29, 2019
    Assignee: Golconda Holdings, LLC
    Inventors: Lloyd L. Lautzenhiser, Shane S. LeBlanc, Melinda LeBlanc
  • Patent number: 10053869
    Abstract: A flooring system combines a dimensionally stabilized sub-floor laminate with a dimensionally stabilized tile laminate, the sub-floor laminate and the tile laminate being held together by magnetic attraction. In one embodiment one or other of the laminates is magnetic, and the other has a ferromagnetic engagement sheet. In another embodiment, a magnetic intermediate sheet is placed between ferromagnetic strata of the two laminates. The tile laminate may include ceramic tiles, which may be glass or porcelain. Those tiles are substantially rigid. They have flat ground edges to provide abutting matching fit with adjacent tiles. On assembly, neither mortar nor grouting is employed. The sub-floor has pre-defined mounting hardware accommodations that permit the fasteners not to interfere with the flatness and fit-up of the laminates.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: August 21, 2018
    Assignee: Kablan Developments Inc.
    Inventor: Gabriel Krausz
  • Patent number: 10056177
    Abstract: The present invention is a method capable of producing a rare-earth magnet with excellent magnetization and coercivity. The method includes producing a sintered body including a main phase and grain boundary phase and represented by (R11-xR2x)aTMbBcMd (where R1 represents one or more rare-earth elements including Y, R2 represents a rare-earth element different than R1, TM represents transition metal including at least one of Fe, Ni, or Co, B represents boron, M represents at least one of Ti, Ga, Zn, Si, Al, etc., 0.01?x?1, 12?a?20, b=100?a?c?d, 5?c?20, and 0?d?3 (all at %)); applying hot deformation processing to the sintered body to produce a precursor of the magnet; and diffusing/infiltrating melt of a R3-M modifying alloy (rare-earth element where R3 includes R1 and R2) into the grain boundary phase of the precursor.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: August 21, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritsugu Sakuma, Tetsuya Shoji, Kazuaki Haga
  • Patent number: 9987865
    Abstract: A polyester film has a wax on a surface of one side of the film and is a polyester film in which this wax is dispersed in the form of islands on the surface of the film, and a filling factor of the wax in the film surface is 20 to 45%, and, as for a number of islands of the wax dispersed in the form of islands and each of which has an area of 200 ?m2 or larger, there is one or less/10000 ?m2.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: June 5, 2018
    Assignee: Toray Industries, Inc.
    Inventors: Tomoko Hayano, Jun Takahashi
  • Patent number: 9814349
    Abstract: Provided is a vitreous coating comprising at least one layer embodied in the form of a continuous film of sol-gel material comprising a matrix formed from at least one metal polyalkoxylate and wherein anisotropically-shaped particles are dispersed, said layer comprising at least one area wherein the particles are particles predominantly inclined by an angle (?) of between 20° and 90° relative to the median plane of the film. The subject matter of the present invention also comprises a method of manufacturing such a coating, and a culinary article one of the surfaces of which is coated with such a coating.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: November 14, 2017
    Assignee: SEB S.A.
    Inventors: Aurelien Dubanchet, Stephanie Le Bris, Jean-Luc Perillon
  • Patent number: 9777075
    Abstract: A novel system for the analysis of molecules and cells, comprising clusters where a non-magnetic particle is supplemented with magnetic particles to form a characteristic pattern, fingerprint or bar code. Methods and devices for formation of such particles are also disclosed.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: October 3, 2017
    Assignee: Lab-on-a-bead AB
    Inventors: Sven Oscarsson, Kristofer Eriksson, Peter Svedlindh
  • Patent number: 9765273
    Abstract: In one embodiment, a method for forming a substantially monodisperse lubricant includes: providing a plurality of perfluoropolyether (PFPE) precursors, each PFPE precursor including two end segments and a PFPE backbone disposed therebetween; protecting one of the end segments of each PFPE precursor with one or more protecting agents to form a plurality of mono-protected PFPE precursors, each mono-protected PFPE precursor including a protected end segment and an unprotected end segment; and coupling the unprotected end segment of each of the mono-protected PFPE precursors to the unprotected end segment of another of the mono-protected PFPE precursors via a coupling agent to form multidentate PFPE structures.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: September 19, 2017
    Assignee: Western Digital Technologies, Inc.
    Inventors: Nicholas R. Conley, Xueqian Kong, Bruno Marchon
  • Patent number: 9748026
    Abstract: Provided are hexagonal ferrite magnetic powder for magnetic recording, being comprised of hexagonal ferrite magnetic particles having a crystalline metal oxide adhered to a surface thereof, a method for producing hexagonal ferrite magnetic particles having a crystalline metal oxide adhered to a surface thereof, and a magnetic recording medium.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: August 29, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Masashi Shirata
  • Patent number: 9721594
    Abstract: According to one embodiment, there is provided a spin torque oscillator including an oscillation layer formed of a magnetic material, a spin injection layer formed of a magnetic material and configured to inject a spin into the oscillation layer, and a current confinement layer including an insulating portion formed of an oxide or a nitride and a conductive portion formed of a nonmagnetic metal and penetrating the insulating portion in a direction of stacking. The conductive portion of the current confinement layer is positioned near a central portion of a plane of a device region including the oscillation layer and the spin injection layer.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: August 1, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akihiko Takeo, Satoshi Shirotori, Kenichiro Yamada, Katsuhiko Koui
  • Patent number: 9611731
    Abstract: The disclosure describes enhanced determination of dip and strike/azimuth for real-time MCI data processing in some difficult conditions such as low-dip and low-anisotropy formations using formation properties from surrounding layers. The method is effective for the enhanced determination of dip and azimuth to enhance the inversion accuracy of formation dip and azimuth if the formation anisotropic ratio is low and so reduce the uncertainty of the inverted dip and azimuth.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: April 4, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Junsheng Hou, Dagang Wu, Burkay Donderici, Luis Emilio San Martin
  • Patent number: 9567676
    Abstract: The object of the present invention is to provide a hard coating composition for a metal substrate, including a film-forming resin component which contains a urethane (meth)acrylate obtained by reacting a polyisocyanate compound, a polyol, and a (meth)acrylate monomer having a hydroxyl group, wherein the polyisocyanate compound is hydrogenated xylylene diisocyanate and/or dicyclohexylmethane diisocyanate.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: February 14, 2017
    Assignee: Fujikura Kasei Co., Ltd.
    Inventors: Takashi Isogai, Noboru Ohara, Masao Watanabe, Mitsuo Najima, Kenji Kawai, Hiroyuki Ishii
  • Patent number: 9424969
    Abstract: A magneto-rheological fluid includes a magnetic particle mixture, and a dispersion medium for dispersing the magnetic particle mixture. The magnetic particle mixture contains the first magnetic particles and the second magnetic particles. The first magnetic particles have an average particle diameter of 1 ?m or more and 30 ?m or less. The second magnetic particles are particles of a soft magnetic material, and have an average particle diameter of 50 nm or more and 200 nm or less. A ratio of the second magnetic particles in the magnetic particle mixture is 10% by mass or more and 40% by mass or less.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: August 23, 2016
    Assignee: Kurimoto, Ltd.
    Inventors: Junichi Noma, Masami Nakano
  • Patent number: 9251832
    Abstract: An aspect of the present invention relates to hexagonal ferrite magnetic powder, which has an activation volume ranging from 900 nm3 to 1,600 nm3, and a ratio of a coefficient of plate thickness variation to a coefficient of particle diameter variation, coefficient of plate thickness variation/coefficient of particle diameter coefficient, ranging from 0.20 to 0.60.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: February 2, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Suzuki, Toshio Tada
  • Patent number: 9040158
    Abstract: A generic route for synthesis of asymmetric nanostructures. This approach utilizes submicron magnetic particles (Fe3O4—SiO2) as recyclable solid substrates for the assembly of asymmetric nanostructures and purification of the final product. Importantly, an additional SiO2 layer is employed as a mediation layer to allow for selective modification of target nanoparticles. The partially patched nanoparticles are used as building blocks for different kinds of complex asymmetric nanostructures that cannot be fabricated by conventional approaches. The potential applications such as ultra-sensitive substrates for surface enhanced Raman scattering (SERS) have been included.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: May 26, 2015
    Assignee: UChicago Argonne LLC
    Inventors: Yugang Sun, Yongxing Hu
  • Publication number: 20150138673
    Abstract: A method for forming a protective overcoat onto a tape bearing surface of a tape head used for magnetic tape recording. In order to ensure optimal surface tension and liftoff properties of the ink mask, the tape bearing surface is treated with a first application of ethanol, followed by an application of polydimethylsiloxane, followed by a second application of ethanol. After this treatment an ink mask can be printed onto the tape bearing surface so as to form a mask having an opening over the location of the magnetic transducer. An etching can then be performed followed by the deposition of a protective coating such as alumina.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 21, 2015
    Applicant: HGST Netherlands B.V.
    Inventors: Que Adrong, Cherngye Hwang, Dung T. Nguyen, Eduardo Torres Mireles
  • Patent number: 9034492
    Abstract: Systems and methods for controlling the damping of magnetic media for heat assisted magnetic recording are provided. One such system includes a heat sink layer, a growth layer on the heat sink layer, a magnetic recording layer on the growth layer, where the growth layer is configured to facilitate a growth of a preselected crystalline structure of the magnetic recording layer, and a capping magnetic recording layer on the magnetic recording layer, the capping recording layer including a first material configured to increase a damping constant of the capping recording layer to a first preselected level.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: May 19, 2015
    Assignee: WD Media, LLC
    Inventors: Michael L. Mallary, Gerardo A. Bertero, Kumar Srinivasan
  • Patent number: 9028909
    Abstract: A magnetoresistive element includes a magnetoresistive film including a magnetization pinned layer, a magnetization free layer, an intermediate layer arranged between the magnetization pinned layer and the magnetization free layer, a cap layer arranged on the magnetization pinned layer or on the magnetization free layer, and a functional layer arranged in the magnetization pinned layer, in the magnetization free layer, in the interface between the magnetization pinned layer and the intermediate layer, in the interface between the intermediate layer and the magnetization free layer, or in the interface between the magnetization pinned layer or the magnetization free layer and the cap layer, and a pair of electrodes which pass a current perpendicularly to a plane of the magnetoresistive film, in which the functional layer is formed of a layer including nitrogen and a metal material containing 5 atomic % or more of Fe.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: May 12, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideaki Fukuzawa, Shuichi Murakami, Hiromi Yuasa, Yoshihiko Fuji
  • Publication number: 20150125597
    Abstract: Provided is an in-line type film forming apparatus including a processing chamber which is disposed to deviate from a closed path and is connected to a corner chamber, a first loading and unloading unit which unloads a substrate from a carrier and moves the substrate to the inside of the processing chamber, a second loading and unloading unit which unloads the substrate processed in the processing chamber and loads the substrate on the carrier, and a control device which performs control of driving the first and second loading and unloading units to unload the substrate from the carrier and to move the substrate to the inside of the processing chamber, and to take out the substrate processed in the processing chamber in advance from the processing chamber and to load the substrate on the carrier.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Applicant: SHOWA DENKO K.K.
    Inventors: Seiya NAGAI, Satoru UENO
  • 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: 9003651
    Abstract: Various pattern transfer and etching steps can be used to create features. Conventional photolithography steps can be used in combination with pitch-reduction techniques to form superimposed, pitch-reduced patterns of crossing elongate features that can be consolidated into a single layer. Planarizing techniques using a filler layer and a protective layer are disclosed. Portions of an integrated circuit having different heights can be etched to a common plane.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: April 14, 2015
    Assignee: Micron Technology, Inc.
    Inventors: Mirzafer Abatchev, David Wells, Baosuo Zhou, Krupakar Murali Subramanian
  • Publication number: 20150099064
    Abstract: According to one embodiment, a pattern formation method includes forming a surface treatment polymer film on a substrate, applying a solution containing a monomer or oligomer of a surface treatment polymer material to a surface of the surface treatment polymer film, forming a self-assembled layer by coating the surface treatment polymer film with a coating solution containing a block copolymer having at least two types of polymer chains, and forming a microphase-separated structure in the self-assembled layer by annealing, and optionally removing one type of a polymer layer from the microphase-separated structure, thereby forming convex patterns by a remaining polymer layer.
    Type: Application
    Filed: December 27, 2013
    Publication date: April 9, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Akira Watanabe, Kazutaka Takizawa, Kaori Kimura
  • Patent number: 8999533
    Abstract: Provided is a magnetic disk comprising a lubricating layer formed of a lubricant. The lubricant constituting the lubricating layer has excellent properties, for example, excellent fluidity, surface energy, and CFT properties. By virtue of the excellent properties, the magnetic disk has a high level of reliability despite a low flying height of a magnetic head due to a recent rapid increase in recording density and a very severe environment resistance requirement due to diversification of applications. The magnetic disk comprises a substrate and at least a magnetic layer, a protective layer, and a lubricating layer provided in that order over the substrate.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: April 7, 2015
    Assignee: WD Media (Singapore) Pte. Ltd.
    Inventor: Koichi Shimokawa
  • Publication number: 20150093501
    Abstract: A rare earth magnet is prepared by disposing a R1-T-B sintered body comprising a R12T14B compound as a major phase in contact with an R2-M alloy powder and effecting heat treatment for causing R2 element to diffuse into the sintered body. The alloy powder is obtained by quenching a melt containing R2 and M. R1 and R2 are rare earth elements, T is Fe and/or Co, M is selected from B, C, P, Al, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ag, In, Sn, Sb, Hf, Ta, W, Pt, Au, Pb, and Bi.
    Type: Application
    Filed: August 18, 2014
    Publication date: April 2, 2015
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Tadao Nomura, Hiroaki Nagata, Takehisa Minowa
  • Patent number: 8981888
    Abstract: A magnetic body which can reversibly change its magnetic force with a small external magnetic field while having a high residual magnetic flux density is provided. The magnetic body of the present invention has a residual magnetic flux density Br of at least 11 kG and a coercive force HcJ of 5 kOe or less, while an external magnetic field required for the residual magnetic flux density Br to become 0 is 1.10 HcJ or less.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: March 17, 2015
    Assignee: TDK Corporation
    Inventors: Kenichi Suzuki, Yoshinori Fujikawa
  • Patent number: 8978240
    Abstract: A CPP-GMR spin valve having a composite spacer layer comprised of at least one metal (M) layer and at least one semiconductor or semi-metal (S) layer is disclosed. The composite spacer may have a M/S, S/M, M/S/M, S/M/S, M/S/M/S/M, or a multilayer (M/S/M)n configuration where n is an integer?1. The pinned layer preferably has an AP2/coupling/AP1 configuration wherein the AP2 portion is a FCC trilayer represented by CoZFe(100-Z)/FeYCo(100-Y)/CoZFe(100-Z) where y is 0 to 60 atomic %, and z is 75 to 100 atomic %. In one embodiment, M is Cu with a thickness from 0.5 to 50 Angstroms and S is ZnO with a thickness of 1 to 50 Angstroms. The S layer may be doped with one or more elements. The dR/R ratio of the spin valve is increased to 10% or greater while maintaining acceptable EM and RA performance.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: March 17, 2015
    Assignee: Headway Technologies, Inc.
    Inventors: Kunliang Zhang, Min Li, Moris Dovek, Yue Liu
  • Publication number: 20150056473
    Abstract: Depositing a seed layer for a high-moment shield onto a write pole may have a deleterious effect on the magnetic response of the write pole. Instead, an amorphous separation layer may be deposited between the write pole and the seed layer. In one embodiment, the seed layer is formed directly on the amorphous layer. In addition to separating the seed layer from the write pole, the amorphous separation layer permits the seed layer to dictate the crystallographic orientation of the shield which is subsequently deposited on the magnetic head. That is, the amorphous layer provides a substrate that allows the seed layer to have a crystalline structure independent of the layers that were deposited previously. The amorphous separation layer may comprise an amorphous metal—e.g., NiNb or NiTa—or an insulative material—e.g., alumina or silicon dioxide.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 26, 2015
    Applicant: HGST Netherlands B.V.
    Inventors: Donald G. Allen, Wen-Chien D. Hsiao, Quan-chiu H. Lam, Ning Shi
  • Publication number: 20150049595
    Abstract: An apparatus includes a slider, a light source disposed upon an outer surface of the slider and a projection extending above the outer surface of the slider. The light source comprises a resonant cavity aligned with the outer surface of the slider. The projection comprises an optical turning element that is optically coupled to the light source. Also included are methods of fabrication thereof.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 19, 2015
    Applicant: Seagate Technology LLC
    Inventor: Ralph Kevin Smith
  • Publication number: 20150050178
    Abstract: A soft magnetic composite (SMC) material is formed from atomized ferromagnetic particles. The particles of a predetermined size range are formed and are coated with at least one layer of electrically insulating nano-sized inorganic fillers to form insulated ferromagnetic powder as the SMC material. The particles are further coated with a lubricating agent to facilitated demoulding.
    Type: Application
    Filed: January 30, 2013
    Publication date: February 19, 2015
    Inventors: Chi Ming Chan, Kai Mo Ng
  • Publication number: 20150044510
    Abstract: A method of protecting a magnetic information storage medium is described. The method includes fabricating a film over a surface of the magnetic information storage medium. The film includes an amorphous, uniform, homogeneous solid solution of carbon, hydrogen, silicon, and oxygen. A magnetic storage medium with such a protective film is described.
    Type: Application
    Filed: September 15, 2014
    Publication date: February 12, 2015
    Inventors: Robert W. Carpick, Kumar Sridharan
  • Publication number: 20150041022
    Abstract: A method for producing a NdFeB system sintered magnet in which a coating material containing a heavy rare-earth element RH applied to a base material of a NdFeB system sintered magnet is inexpensively prevented from adhering to a tray or similar device in a grain boundary diffusion treatment. The method includes the steps of applying a coating material containing a heavy rare-earth element RH to a base material and diffusing the element through grain boundaries in the base material by a grain boundary diffusion method. The coating material is applied to a sheet. The sheet is made to come in tight contact with the base material so that the coating material applied to the sheet contacts an application target surface of the base material. With the sheet held in tight contact with the base material, the grain boundary diffusion treatment (heat treatment) is performed on the base material.
    Type: Application
    Filed: October 17, 2012
    Publication date: February 12, 2015
    Inventors: Kazuyuki Komura, Tetsuhiko Mizoguchi, Masato Sagawa
  • Publication number: 20150037818
    Abstract: Magnetic-optical iron oxide-gold core-shell nanoparticles are disclosed. Methods for making and using the nanoparticles are also disclosed.
    Type: Application
    Filed: July 1, 2014
    Publication date: February 5, 2015
    Applicant: UNIVERSITY OF MEMPHIS RESEARCH FOUNDATION
    Inventors: Xiaohua Huang, Saheel Bhana
  • Publication number: 20150037613
    Abstract: A magnetic device including a magnetic writer; and an overcoat positioned over at least the magnetic writer, the overcoat including tantalum oxide (TayOx), where y ranges from about 1 to 2 and x ranges from about 2 to 5, or mixtures thereof.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 5, 2015
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Nils Gokemeijer, Tong Zhao, James Kiely
  • Publication number: 20150028250
    Abstract: A magnetic composition containing a metal-salen complex compound which can be securely guided by a magnetic field to a target area to be preferably treated, and a method for producing the magnetic composition are provided. The magnetic composition is prepared by dispersing magnetic particles, which are obtained by coating a metal-salen complex compound with a dispersant, in a polar solvent by means of the dispersant. Furthermore, the magnetic composition production method includes a first step of mixing the metal-salen complex compound with the dispersant in an organic solvent and coating the metal-salen complex compound with the dispersant and a second step of dispersing the metal-salen complex in a polar solvent.
    Type: Application
    Filed: September 6, 2012
    Publication date: January 29, 2015
    Applicants: IHI Corporation
    Inventors: Yoshihiro Ishikawa, Haruki Eguchi
  • Publication number: 20150030887
    Abstract: A data storage device including a substrate; a magnetic structure deposited on the substrate; and a molecular overcoat deposited on the magnetic structure, the molecular overcoat having a thickness of not greater than about 100 ?.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 29, 2015
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventor: John L. Brand
  • Publication number: 20150017482
    Abstract: The embodiments disclose a plasmonic cladding structure including at least one conformal plasmonic cladding structure wrapped around plural stack features of a recording device, wherein the conformal plasmonic cladding structure is configured to create a near-field transducer in close proximity to a recording head of the recording device, at least one conformal plasmonic cladding structure with substantially removed top surfaces of the stack features with exposed magnetic layer materials and a thermally insulating filler configured to be located between the stack features.
    Type: Application
    Filed: October 16, 2013
    Publication date: January 15, 2015
    Applicant: Seagate Technology LLC
    Inventors: Kim Y. Lee, Ganping Ju, Chubing Peng, Xiaobin Zhu, Yingguo Peng, Yukiko A. Kubota, Timothy J. Klemmer, Jan-Ulrich Thiele, Michael A. Seigler, Werner Scholz, David S. Kuo, Koichi Wago, Thomas P. Nolan
  • Publication number: 20150017056
    Abstract: Disclosed herein are a soft magnetic metal powder having a pearlite lamellar structure in which ferrite structures and cementite structures are repeated, a method for preparing the same, and an electronic component including the same as a core material. According to the present invention, the soft magnetic metal powder having the pearlite lamellar structure in which the ferrite structures and the cementite structures are repeated may be easily prepared, and an eddy current loss may be easily decreased without changing the existing molding process, such that the soft magnetic metal powder may be used as a core material of various electronic components such as an inductor, a motor, an actuator, a sensor, a transformer, and a reactor, requiring soft magnetic properties.
    Type: Application
    Filed: July 10, 2014
    Publication date: January 15, 2015
    Inventors: Hak Kwan KIM, Sang Kyun KWON, Sung Jae LEE, Sung Yong AN