Patents Examined by Kevin Bernatz
  • Patent number: 9855681
    Abstract: Ferrite compositions, particularly ferrite coated substrates and more particularly fiber plys coated with ferrites in fiber reinforced polymer composites (FRPC), and composites with a plurality of functionalized fiber layers, include a magnetic ferrite composition for coating a substrate, said composition comprising a resin, and dispersed therein ferrite particulates, wherein said ferrite particulates have an average longest dimension of less than 500 nm. The composition may be used to provide a ferrite composite structure comprising at least one fiber ply, with at least one layer of a magnetic ferrite composition deposed thereon, wherein said ply is substantially encapsulated in a binder matrix to form a fiber reinforced polymer composite.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: January 2, 2018
    Assignee: BAE SYSTEMS plc
    Inventors: Sajad Haq, Michael Dunleavy, Hazel Anne Dyke, Amy Elizabeth Dyke
  • Patent number: 9849713
    Abstract: The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the invention relates to optical effect layers (OEL) showing a viewing-angle dependent optical effect, devices and processes for producing said OEL and items carrying said OEL, as well as uses of said optical effect layers as an anti-counterfeit means on documents.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: December 26, 2017
    Assignee: SICPA HOLDING SA
    Inventors: Mathieu Schmid, Evgeny Loginov, Claude Alain Despland, Pierre Degott
  • Patent number: 9842678
    Abstract: A binary, ternary, quaternary, or quinary Mn—X magnetic material (X represents at least one element selected from Al, Bi, Ga, and Rh) has a thickness of 100 nm or less and exhibits a uniaxial magnetic anisotropy constant of 107 erg/cc or higher and a coercive force of 15 kOe or higher in the temperature range of 0° C. or more and 200° C. or less, and a room-temperature saturation magnetization of 400 emu/cc or higher.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: December 12, 2017
    Assignees: The Board of Trustees of The University of Alabama, TDK Corporation
    Inventors: Takao Suzuki, Patrick R. Leclair, Toshiya Hozumi
  • Patent number: 9831022
    Abstract: An embodiment of the present invention relates to a magnetic sheet having both an electromagnetic field shielding function and a heat dissipating function, and to a wirelessly charged magnetic member using same.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: November 28, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventors: So Yeon Kim, Seok Bae, Soon Young Hyun, Jai Hoon Yeom, Sang Won Lee, Hee Jung Lee, Don Chul Choi
  • Patent number: 9818514
    Abstract: Nanocomposite magnetic materials, methods of manufacturing nanocomposite magnetic materials, and magnetic devices and systems using these nanocomposite magnetic materials are described. A nanocomposite magnetic material can be formed using an electro-infiltration process where nanomaterials (synthesized with tailored size, shape, magnetic properties, and surface chemistries) are infiltrated by electroplated magnetic metals after consolidating the nanomaterials into porous microstructures on planar substrates. The nanomaterials may be considered the inclusion phase, and the magnetic metals may be considered the matrix phase of the multi-phase nanocomposite.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: November 14, 2017
    Assignee: University of Florida Research Foundation, Incorporated
    Inventors: David P. Arnold, Jennifer S. Andrew
  • Patent number: 9818443
    Abstract: The magnetic recording medium has a nonmagnetic layer satisfying: the ratio of the total area accounted for by voids observed to the area of the observed region falls within a range of 13.0% to 25.0% in a sectional image taken by SEM; R+?r is 58.0 nm or less and R??r is 21.0 nm or greater when denoting the average value of the diameters of corresponding circles for voids observed in the sectional image as R, denoting the standard deviation of the diameters of the corresponding circles as ?r; N+?n is 185 voids/?m2 or less and N??n is 120 voids/?m2 or greater when denoting the average number of voids observed per ?m2 unit area of the observed region in the sectional image as N, denoting the standard deviation of this number as ?n; and the thickness of the nonmagnetic layer is 0.20 ?m or greater.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: November 14, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Junpei Ishida
  • Patent number: 9813114
    Abstract: A sheet for shielding electromagnetic waves includes a magnetic sheet formed of a metal ribbon. The magnetic sheet includes fractures disposed in a plurality of cracked portions comprising a plurality of metal ribbon fragments.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: November 7, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seung Hee Oh, Doo Ho Park, Jung Young Cho, Jong Ho Chung, Jung Wook Seo, Sung Yeol Park, Sung Nam Cho, Seung Min Lee
  • Patent number: 9805748
    Abstract: A method of providing an apparatus with a protective layer by simultaneously depositing carbon and seed material on the apparatus to form an intermediate layer, wherein the carbon and seed material have a percentage composition that varies as a function of the intermediate layer thickness; and then providing a diamond-like carbon (DLC) layer adjacent to the intermediate layer to produce the protective layer.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: October 31, 2017
    Assignee: WESTERN DIGITAL (FREMONT), LLC
    Inventors: Yongping Gong, Budi Suswadi, Phuwanai Bunnak, Kah Choong Loo, Krisda Siangchaew
  • Patent number: 9805754
    Abstract: A magnetic recording medium includes: a substrate; and a magnetic layer including a ferrimagnetic particle powder. A product (V×SFD) of a particle volume V and a holding force distribution SFD of the ferrimagnetic particle is equal to or less than 2500 nm3.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: October 31, 2017
    Assignee: Sony Corporation
    Inventor: Katsunori Maeshima
  • Patent number: 9805893
    Abstract: An electromagnetic relay (100) has high wear resistance, high corrosion resistance, and good magnetic properties. The electromagnetic relay (100) includes a magnetic component including an alloy layer on its surface formed by diffusion-coating of at least one element selected from the group consisting of Cr, V, Ti, and Al. The alloy layer has a thickness of 5 to 60 ?m, inclusive.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: October 31, 2017
    Assignee: OMRON Corporation
    Inventor: Seiki Shimoda
  • Patent number: 9779771
    Abstract: A stack includes a substrate, a magnetic recording layer comprising FePtX disposed over the substrate, and a capping layer disposed on the magnetic recording layer. The capping layer comprises Co; at least one rare earth element; one or more elements selected from a group consisting of Fe and Pt; and an amorphizing agent comprising one to three elements selected from a group consisting of B, Zr, Ta, Cr, Nb, W, V, and Mo.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: October 3, 2017
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Kangkang Wang, Yingguo Peng, Ganping Ju, Xiaobin Zhu, Li Gao, Yinfeng Ding, Kai Chieh Chang, Timothy J. Klemmer, Yukiko Kubota, Jan-Ulrich Thiele, Thomas P. Nolan
  • Patent number: 9780298
    Abstract: According to one embodiment, a magnetoresistive element includes a recording layer having a variable magnetization direction, a reference layer having an invariable magnetization direction, an intermediate layer provided between the recording layer and the reference layer, and a first buffer layer provided on a surface of the recording layer, which is opposite to a surface of the recording layer where the intermediate layer is provided. The recording layer comprises a first magnetic layer which is provided in a side of the intermediate layer and contains CoFe as a main component, and a second magnetic layer which is provided in a side of the first buffer layer and contains CoFe as a main component, a concentration of Fe in the first magnetic layer being higher than a concentration of Fe in the second magnetic layer. The first buffer layer comprises a nitrogen compound.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 3, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Eiji Kitagawa, Tadaomi Daibou, Tadashi Kai, Toshihiko Nagase, Kenji Noma, Hiroaki Yoda
  • Patent number: 9775974
    Abstract: A magnetic article with a corrosion resistant barrier formed from a poly(tetrafluoro-p-xylene) conformal coating or from a parylene conformal coating having a melting point of at least about 430° C. and a moisture vapor transmission less than about 0.5 g-mm/m2/day at 90% RH and 37° C., the conformal coating being covered with a polysulfone thermoplastic overlayer.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: October 3, 2017
    Assignee: MEDTRONIC XOMED, INC.
    Inventors: Chun Man Alan Leung, William Jeffrey Bertrand, Drew Powell Amery, Lori C. Speckman, Thomas J. Sierocuk
  • Patent number: 9773603
    Abstract: A method of magnetization reversal, time stable ferrimagnetic material, a product and a domain comprising said material, a system for magnetization reversal, and information storage. Therein, a ferrimagnetic material is one in which magnetic moments of the atoms on different sublattices are opposed, as in antiferromagnetism; however, in ferrimagnetic materials, the opposing moments are unequal and a spontaneous magnetization remains.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: September 26, 2017
    Assignee: RADBOUD UNIVERSITEIT NIJMEGEN
    Inventors: Theodorus Henricus Maria Rasing, Johan Mentink, Andrei Kirilyuk, Alexey Kimel, Richard Francis Llewelyn Evans, Roy William Chantrell, Thomas Andrew Ostler, Joseph Barker
  • 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: 9734857
    Abstract: A stack including a crystallographic orientation interlayer, a magnetic zero layer disposed on the interlayer, and a magnetic recording layer disposed on the magnetic zero layer is disclosed. The magnetic zero layer is non-magnetic or has a saturation magnetic flux density (Bs) less than about 100 emu/cc. The magnetic zero layer and the magnetic layer include grains surrounded by a non-magnetic segregant. The magnetic zero layer provides a coherent interface between the interlayer and the magnetic layer with a lattice mismatch less than about 4%.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: August 15, 2017
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Jai-Young Kim, Thomas P. Nolan, Kyongha Kang, Shoutao Wang, Vincent D. Nguyen, Abebe Hailu, Charles C. Chen
  • Patent number: 9728238
    Abstract: Spin transfer torque memory (STTM) devices with half-metals and methods to write and read the devices are described. For example, a magnetic tunneling junction includes a free magnetic layer, a fixed magnetic layer, and a dielectric layer disposed between the free magnetic layer and the fixed magnetic layer. One or both of the free magnetic layer and the fixed magnetic layer includes a half-metal material at an interface with the dielectric layer.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: August 8, 2017
    Assignee: Intel Corporation
    Inventors: Charles C. Kuo, Roksana Golizadeh Mojarad, Brian S. Doyle, David L. Kencke, Kaan Oguz, Robert S. Chau
  • Patent number: 9728217
    Abstract: A glass substrate for use as a magnetic disk for heat assisted magnetic recording can restrain the occurrence of scratches when a magnetic head is in operation. The glass substrate for the magnetic disk includes a principal face on which an arithmetic average waviness Wa of a wavelength band of 1 to 3 mm is 2.15 ? or less.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: August 8, 2017
    Assignees: HOYA GLASS DISK VIETNAM II LTD., HOYA CORPORATION
    Inventors: Masayoshi Yoshida, Masahiro Katagiri
  • Patent number: 9728218
    Abstract: A magnetic recording medium for heat-assisted magnetic recording is provided. A magnetic recording layer includes upper and lower magnetic recording layers. The lower magnetic recording layer has a lower granular structure including lower magnetic crystal grains, and a lower non-magnetic portion, that surrounds the lower magnetic crystal grains, mainly composed of carbon. The upper magnetic recording layer has an upper granular structure including upper magnetic crystal grains, and an upper non-magnetic portion, that surrounds the upper magnetic crystal grains, formed from a material selected from the group consisting of silicon nitride, titanium oxide and titanium nitride.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: August 8, 2017
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Shinji Uchida
  • Patent number: 9724956
    Abstract: The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the invention relates to optical effect layers (OEL) showing a viewing-angle dependent optical effect, devices and processes for producing said OEL and items carrying said OEL, as well as uses of said optical effect layers as an anti-counterfeit means on documents.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: August 8, 2017
    Assignee: SICPA HOLDING SA
    Inventors: Mathieu Schmid, Evgeny Loginov, Claude Alain Despland, Pierre Degott