Magnetic Base Or Coating Patents (Class 427/127)
  • Patent number: 11948730
    Abstract: An insulator-coated magnetic alloy powder particle includes a magnetic alloy powder particle and an insulator that coats a surface of the magnetic alloy powder particle and that has a plurality of protrusions at a surface thereof, wherein the insulator includes a first insulator in a particulate form enclosed in the protrusion, and a second insulator in a film form that coats at least a part of a surface of the first insulator.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: April 2, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yasutaka Matsumoto
  • Patent number: 11942252
    Abstract: A magnetic base body in one embodiment of the invention includes first metal magnetic particles having a first average particle size, and second metal magnetic particles having a second average particle size smaller than the first average particle size. In the embodiment, a first insulating layer having a first thickness is provided on surfaces of the first metal magnetic particles, and a second insulating layer having a second thickness smaller than the first thickness is provided on surfaces of the second metal magnetic particles.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: March 26, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventor: Hitoshi Matsuura
  • Patent number: 11919010
    Abstract: A process. The process includes forming a slurry comprising electrode active material particles of one or more lithium-ion electrochemical cells, magnetizing the electrode active material particles and separating the magnetized electrode active material particles from the slurry.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: March 5, 2024
    Assignee: RSR TECHNOLOGIES, INC.
    Inventors: Timothy W. Ellis, Joshua A. Montenegro
  • Patent number: 11921154
    Abstract: A test system for testing a device having a plurality of electrical contacts. The test system comprising: a device table operable to hold at least one device under test, a probe comprising at least one probe end for contacting electrical contacts of a device under test, a movement mechanism operable to move one or both of the device table and the probe so as to bring the at least one probe end into contact with at least one electrical contact of a device under test, and a profile determining system configured to determine a profile of the electrical contacts of a device under test.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: March 5, 2024
    Assignee: TeraView Limited
    Inventors: Bryan Edward Cole, Darius Sullivan, Simon Chandler
  • Patent number: 11923115
    Abstract: An insulating coating-attached electrical steel sheet has, on at least one surface, an insulating coating including an insulating tensile coating layer A. A tension applied to the steel sheet by an insulating tensile coating layer having a coating weight of M/2 from a surface of the insulating tensile coating layer A is 0.80×?A or more, where M is a weight of the insulating tensile coating layer A, and ?A is the tension applied to the steel sheet by the insulating tensile coating layer A. The insulating coating-attached electrical steel sheet has excellent adhesion of the insulating coating. A method for manufacturing the insulating coating-attached electrical steel sheet is also provided.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: March 5, 2024
    Assignee: JFE STEEL CORPORATION
    Inventors: Takashi Terashima, Masahiro Suemune, Karin Kokufu, Toshito Takamiya
  • Patent number: 11916027
    Abstract: According to one embodiment, an isolator includes first and second electrodes, first and second insulating portions, and a first dielectric portion. The first insulating portion is provided on the first electrode. The second electrode is provided on the first insulating portion. The second insulating portion is provided around the second electrode along a first plane perpendicular to a first direction. The second insulating portion contacts the second electrode. The first dielectric portion is provided between the first and second insulating portions. At least a portion of the first dielectric portion contacts the second electrode and is positioned around the second electrode along the first plane. A distance between a lower end of the second electrode and a first interface between the first dielectric portion and the second insulating portion is less than a distance between the first interface and an upper end of the second electrode.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: February 27, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Yoshihiko Fuji, Ryohei Nega, Tatsuya Ohguro, Takanobu Kamakura
  • Patent number: 11910583
    Abstract: An electromagnetic wave absorption structure includes at least one electromagnetic wave composite absorbing layer. The electromagnetic wave composite absorbing layer includes a conductive composite layer and an insulating layer. The insulating layer is stacked and overlapped with the conductive composite layer. The electromagnetic wave absorption structure can provide good electromagnetic wave absorption function, and have the features of light and thin, so it is particularly suitable for satisfying the electromagnetic wave absorption or shielding requirements of thin electronic products.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: February 20, 2024
    Assignee: BLACK SOLUTION NANOTECH CO., LTD.
    Inventor: Feng-Yu Wu
  • Patent number: 11881232
    Abstract: A dual disk spindle motor hard disk drive includes a first portion having a first spindle motor and a first disk media stack mounted thereon and housed in a first enclosure, and a second portion having a coaxial second spindle motor and a second disk media stack mounted thereon and housed in a second enclosure, where the second portion further includes both the first actuator and head sliders corresponding to the first disk stack as well as the second actuator and head sliders corresponding to the second disk stack. The first and second portions are coupled together such that the open sides of the enclosures mate, referred to herein as a clamshell configuration, and each separate spindle motor is configured to operate independently of the other. With independent control of multiple spindle motors, various control functions may be utilized to address power consumption and temperature control.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: January 23, 2024
    Assignee: Western Digital Technologies, Inc.
    Inventors: Nan-Hsun Han, Brian K. Lee, Danny J. Kastler
  • Patent number: 11869686
    Abstract: The object of the present invention is to provide a fluidizing particle capable of improving a fluidity of a magnetic particle for a magnetic core and capable of improving a permeability of the magnetic core. The fluidizing particle includes a particle body having a magnetic property and a coating layer including a silicon compound covering the particle body, wherein a particle size of the fluidizing particle is 10 to 40 nm, and a circularity of the fluidizing particle is 0.55 or more.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: January 9, 2024
    Assignee: TDK CORPORATION
    Inventors: Kyotaro Abe, Hideharu Moro, Toshiaki Kikuchi
  • Patent number: 11854727
    Abstract: A powder magnetic core with terminal includes: a powder magnetic core composed of Fe-based alloy particles including Fe and an element M (M is Cr and/or Al) which is more easily oxidizable than Fe; and at least two terminals formed at an interval on a surface of the powder magnetic core. The powder magnetic core includes the Fe-based alloy particles, and an underlayer including the element M (M is Cr and/or Al), Fe and O formed on a surface of the Fe-based alloy particles. A first layer including at least one of Cr or Al and O is formed on a surface including a region in which the terminals of the powder magnetic core are formed. The terminals are formed on a surface of the first layer. Each of the terminals includes a second layer including one of Au, Ag, Cu, Ti or Cr.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: December 26, 2023
    Assignee: PROTERIAL, LTD.
    Inventor: Akio Uchikawa
  • Patent number: 11823825
    Abstract: A metal magnetic powder is constituted by metal magnetic grains that each include: a metal phase where the percentage of Fe at its center part is 98 percent by mass or higher, while the mass percentage of Fe at its contour part is lower than that at the center part; and an oxide film covering the metal phase, so as to inhibit oxidation of Fe contained in the metal phase, despite the high content percentage of Fe in the metal phase.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: November 21, 2023
    Assignee: TAIYO YUDEN CO., LTD.
    Inventor: Yoko Orimo
  • Patent number: 11817241
    Abstract: A magnet structure includes a first sintered magnet, a second sintered magnet, and an intermediate layer disposed between the first sintered magnet and the second sintered magnet. Each of the first sintered magnet and the second sintered magnet independently includes crystal grains containing a rare earth element, a transition metal element, and boron. The intermediate layer contains rare earth element oxide phases and crystal grains containing a rare earth element, transition metal element, and boron. Each of the transition metal elements independently includes Fe or a combination of Fe and Co. An average coverage factor of the rare earth element oxide phases measured on the basis of a cross section perpendicular to the intermediate layer of the magnet structure is within a range of 10% to 69%.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: November 14, 2023
    Assignee: TDK Corporation
    Inventors: Taeko Tsubokura, Toshihiro Kuroshima, Koji Mitake, Takeshi Masuda
  • Patent number: 11804243
    Abstract: It is an object of the present technology to provide a magnetic recording medium that has a small total thickness and achieves excellent travelling stability. The present technology provides a tape-shaped magnetic recording medium including a magnetic layer, an underlayer, a base layer, and a back layer, in which a servo pattern is recorded in the magnetic layer, a statistical value ?SW indicating non-linearity of a servo band and being obtained from a reproduction waveform of a servo signal of the servo pattern is 24 nm or less, the base layer contains polyester as a main component, an average thickness tT of the magnetic recording medium is 5.6 ?m or less, the magnetic recording medium contains a lubricant, pores are formed in the magnetic recording medium, and an average diameter of the pores of the magnetic recording medium that is measured in a state where the lubricant has been removed from the magnetic recording medium and the magnetic recording medium has been dried, is 6 nm or more and 11 nm or less.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: October 31, 2023
    Assignee: Sony Group Corporation
    Inventors: Minoru Yamaga, Noboru Sekiguchi
  • Patent number: 11798727
    Abstract: An inductor component includes an inductor wiring line that extends in a plane, a magnetic layer that is formed of an organic resin containing a magnetic powder and that covers the inductor wiring line, and a nonmagnetic-body insulating layer that is formed of an organic resin containing an insulating nonmagnetic powder and that covers a principal surface of the magnetic layer. The inductor component further includes a close-contact layer that is located between the magnetic layer and the insulating layer and that contains the magnetic powder, the nonmagnetic powder, and an organic resin.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: October 24, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kouji Yamauchi, Yoshimasa Yoshioka, Ryo Kudou
  • Patent number: 11798598
    Abstract: Described are hard disk drives that include a low density atmosphere, with which is included a passivating gas, and methods of using these hard disk drives and methods of assembling these hard disk drives.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: October 24, 2023
    Assignee: Seagate Technology LLC
    Inventors: Bruno Marchon, Dipeshkumar Jayantilal Purani, Tae Young Kim, Huazhou Lou
  • Patent number: 11773322
    Abstract: A method of preparing a dye-functionalized flexible upconversion-luminescence solid-phase sensor, including: preparation of upconversion-luminescence nanoparticles, preparation of an upconversion nanoparticle-doped solid-phase sensor, and preparation of a dye-functionalized flexible upconversion-luminescence solid-phase sensor. A method for detecting a gaseous pollutant is also provided, including: preparing a dye-functionalized flexible upconversion-luminescence solid-phase sensor through the above method; establishing a prediction model; and substituting a fluorescence intensity of a sample into the prediction model to calculate the gaseous pollutant concentration in the sample.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: October 3, 2023
    Assignee: JIANGSU UNIVERSITY
    Inventors: Quansheng Chen, Jizhong Wu, Huanhuan Li, Jingui Zhang, Hao Lin, Haihui Pan, Fuyun Wang, Yue Liang, Aijuan Ma, Tianyu Cao, Xiafei Xu, Huanke Hou
  • Patent number: 11765981
    Abstract: A magnetoresistance effect element with a small element size can be provided which achieves both an increase in a thermal stability factor ? and a reduction in a writing current IC0 and which improves a performance index ?/IC0(?A?1) obtained by dividing the thermal stability factor ? by the writing current IC0. The magnetoresistance effect element includes a first reference layer (B1), a first junction layer (11), a first magnetic layer (21), a first non-magnetic coupling layer (31), a second magnetic layer (22), and a second junction layer (12), and a film thickness of the first non-magnetic coupling layer (31) is 0.1 nm or more and 0.3 nm or less.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: September 19, 2023
    Assignee: TOHOKU UNIVERSITY
    Inventors: Sadahiko Miura, Hiroaki Honjo, Hideo Sato, Shoji Ikeda, Tetsuo Endoh
  • Patent number: 11760907
    Abstract: The present disclosure relates to an adhesive film for a semiconductor and a dicing die-bonding film the same, and particularly, to an adhesive film for a semiconductor, which may reduce electromagnetic interference generated in a semiconductor package by including a polymer matrix in which a magnetic filler including a core and a coating layer formed on the surface of the core is dispersed, and a dicing die-bonding film including the same.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: September 19, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jong Min Jang, Kwang Joo Lee, Yu Lin Sun
  • Patent number: 11749305
    Abstract: To provide a magnetic recording medium that has excellent traveling stability in spite of having a thin total thickness and a thin thickness of an underlayer, and is suitable for use in a recording/reproducing device for adjusting the width of the magnetic recording medium by adjusting a tension of the magnetic recording medium in a longitudinal direction thereof. The present technology provides a tape-shaped magnetic recording medium including: a magnetic layer; an underlayer; a base layer; and a back layer, in which the underlayer has a thickness of 0.5 ?m or more and 0.9 ?m or less, the magnetic recording medium has an average thickness tT of 5.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: September 5, 2023
    Assignee: Sony Group Corporation
    Inventors: Minoru Yamaga, Kazuya Hashimoto
  • Patent number: 11705265
    Abstract: In a coil component, a second magnetic portion disposed in the vicinity of a coil is designed to have a higher proportion of Fe than a metal magnetic powder-containing resin constituting a first magnetic portion. Therefore, a magnetic flux of the coil flows smoothly. Although the second magnetic portion has a relatively lower withstand voltage than the first magnetic portion, since the second magnetic portion is surrounded by the first magnetic portion, it is not exposed on an outer surface of a magnetic body. For this reason, a situation in which the coil and external terminal electrodes are short-circuited with the second magnetic portion therebetween is effectively curbed, and short-circuiting between the coil and the external terminal electrodes can be curbed.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: July 18, 2023
    Assignee: TDK CORPORATION
    Inventors: Miyuki Asai, Takahiro Kawahara, Masazumi Arata, Hitoshi Ohkubo
  • Patent number: 11697887
    Abstract: Electroplating systems may include an electroplating chamber. The systems may also include a replenish assembly fluidly coupled with the electroplating chamber. The replenish assembly may include a first compartment housing anode material. The first compartment may include a first compartment section in which the anode material is housed and a second compartment section separated from the first compartment section by a divider. The replenish assembly may include a second compartment fluidly coupled with the electroplating chamber and electrically coupled with the first compartment. The replenish assembly may also include a third compartment electrically coupled with the second compartment, the third compartment including an inert cathode.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: July 11, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Nolan L. Zimmerman, Charles Sharbono, Gregory J. Wilson, Paul R. McHugh, Paul Van Valkenburg, Deepak Saagar Kalaikadal, Kyle M. Hanson
  • Patent number: 11688425
    Abstract: It is an object to provide a magnetic recording medium that enables good reproduction even after long-term preservation and that has a small overall thickness. The present technology provides a tape-shaped magnetic recording medium including a magnetic layer, a ground layer, a base layer, and a back layer, in which an average thickness tT of the magnetic recording medium is equal to or less than 5.3 ?m, and, when the magnetic recording medium is subjected to dynamic viscoelasticity measurement at a frequency of 10 Hz and a temperature rise rate of 2° C./min, a difference between a maximum and a minimum of a viscosity term E? in a temperature range of 0° C. to 80° C. is equal to or less than 0.18 GPa. In addition, the present technology also provides a tape cartridge including the tape-shaped magnetic recording medium.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: June 27, 2023
    Assignee: Sony Group Corporation
    Inventors: Minoru Yamaga, Tooru Sato, Kanako Hashimoto
  • Patent number: 11676631
    Abstract: A magnetic recording medium is a tape-shaped magnetic recording medium, including: a substrate; an underlayer provided on the substrate; and a magnetic layer provided on the underlayer. The substrate contains polyester, each of the underlayer and the magnetic layer contains a lubricant, the magnetic layer has a surface on which a large number of holes is provided, the arithmetic average roughness Ra of the surface is 2.5 nm or less, a BET specific surface area of the entire magnetic recording medium measured in a state where the magnetic recording medium has been washed and dried is 3.5 m2/g or more and 7.0 m2/g or less, a squareness ratio of the magnetic layer in a vertical direction is 65% or more, an average thickness of the magnetic layer is 80 nm or less, an average thickness of the magnetic recording medium is 5.6 ?m or less, and a servo pattern is recorded on the magnetic layer and a statistical value ?SW indicating a non-linearity of the servo pattern is 24 nm or less.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: June 13, 2023
    Assignee: Sony Group Corporation
    Inventors: Noboru Sekiguchi, Minoru Yamaga
  • Patent number: 11667998
    Abstract: An FeNi ordered alloy contained in a magnetic material has an L10 ordered structure, is doped with an light element, and is provided as a granular particle. A method for manufacturing a magnetic material including an FeNi ordered alloy having an L10 ordered structure includes preparing an FeNi ordered alloy provided as a granular particle, and doping a light element into the FeNi ordered alloy.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: June 6, 2023
    Assignee: DENSO CORPORATION
    Inventors: Eiji Watanabe, Yuta Saiga, Hidehiko Hiramatsu, Sho Goto, Ryota Shinozaki, Hiroaki Kura
  • Patent number: 11643422
    Abstract: Disclosed herein are methods of purifying compounds useful for the deposition of high purity tin oxide and high purity compounds purified by those methods. Such compounds are those of the Formula as follows Rx—Sn-A4-x, wherein: A is selected from the group consisting of (YaR?z) and a 3- to 7-membered N-containing heterocyclic group; each R group is independently selected from the group consisting of an alkyl or aryl group having from 1 to 10 carbon atoms; each R? group is independently selected from the group consisting of an alkyl, acyl or aryl group having from 1 to 10 carbon atoms; x is an integer from 0 to 4; a is an integer from 0 to 1; Y is selected from the group consisting of N, O, S, and P; and z is 1 when Y is O, S or when Y is absent and z is 2 when Y is N or P.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: May 9, 2023
    Assignee: SEASTAR CHEMICALS ULC
    Inventors: Rajesh Odedra, Cunhai Dong, Diana Fabulyak, Wesley Graff
  • Patent number: 11629257
    Abstract: Compositions having solid core particles with functionalizing layers over at least a portion of the outer surfaces of the solid core particles are described. The functionalizing layers are formed from a reaction product of a 1,1-di-activated vinyl compound, or a multifunctional form thereof, or a combination thereof.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: April 18, 2023
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Michael A. Zalich, Aditya Gottumukkala, Kurt G. Olson
  • Patent number: 11615812
    Abstract: An object is to provide a magnetic recording medium having excellent traveling stability and a thin total thickness. The present technology provides a tape-shaped magnetic recording medium including: a magnetic layer; an underlayer; a base layer; and a back layer, in which a surface on a side of the magnetic layer has a kurtosis of 3.0 or more, a surface on a side of the back layer has a kurtosis of 2.0 or more, the surface on the magnetic layer side has arithmetic average roughness Ra of 2.5 nm or less, the base layer includes a polyester as a main component, the magnetic recording medium has an average thickness tT of 5.6 ?m or less, the magnetic recording medium includes a lubricant, the lubricant includes a fatty acid and a fatty acid ester, and a mass ratio between the fatty acid and the fatty acid ester extracted with hexane satisfies fatty acid/fatty acid ester?0.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: March 28, 2023
    Assignee: Sony Group Corporation
    Inventors: Minoru Yamaga, Takanobu Iwama, Jun Takahashi
  • Patent number: 11600413
    Abstract: R—Fe—B sintered magnet has a main phase containing R2(Fe,(Co))14B intermetallic compound and a grain boundary phase. The inter-particle grain boundary includes an expanded width part that is surrounded by a narrow width part at which the inter-particle width is 10 nm or less and that has a structure distended in the inter-particle width direction as compared with the grain boundary width of the narrow width part; the inter-particle width at the expanded width part is at least 30 nm; Fe/R ratio in the expanded width part is 0.01-2.5; the main phase includes, in the surface part thereof, an HR-rich phase represented by (R?,HR)2(Fe,(Co))14B (R? represents rare-earth elements excluding Dy, Tb, and Ho, and that essentially include Nd; and HR represents Dy, Tb, and Ho); the contained amount of HR in the HR-rich phase is higher than that in the central part of the main phase.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: March 7, 2023
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Tetsuya Ohashi, Koichi Hirota, Hajime Nakamura
  • Patent number: 11569022
    Abstract: A coil component includes a body and a coil conductor embedded in the body. The body includes a magnetic layer and a non-magnetic layer. The magnetic layer is formed of a composite material including a metal particle and a resin material, and the non-magnetic layer is arranged to block between at least one of top and bottom surfaces of the body and the coil conductor.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: January 31, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Noriko Shimizu, Gota Shinohara, Mikito Sugiyama, Mari Yonemura
  • Patent number: 11565316
    Abstract: The invention relates to a sintered metal material comprising at least one magnetic part, characterised by directional through-pores having a size of between 1 and 100 ?m, said material having a density varying by less than 20% from one sample of 1 cm3 to another taken from a one-piece part made from the material.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: January 31, 2023
    Assignee: OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES (ONERA)
    Inventors: Oceané Lambert, Cécile Davoine
  • Patent number: 11557721
    Abstract: A device including a multi-layered structure that includes: a first layer that includes a first magnetic Heusler compound; a second layer that is non-magnetic at room temperature and includes both Ru and at least one other element E, wherein the composition of the second layer is represented by Ru1?xEx, with x being in the range from 0.45 to 0.55; and a third layer including a second magnetic Heusler compound. The multi-layered structure may overlay a substrate. The device may include a tunnel barrier overlying the multi-layered structure.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: January 17, 2023
    Assignees: International Business Machines Corporation
    Inventors: Panagiotis Charilaos Filippou, Chirag Garg, Yari Ferrante, Stuart S. P. Parkin, Jaewoo Jeong, Mahesh G. Samant
  • Patent number: 11529802
    Abstract: A manufacturing method of a flexible electronic substrate and a substrate structure are disclosed. The manufacturing method includes: providing a first substrate comprising a first surface and a second surface which are opposite; forming a separation layer on the first surface of the first substrate, the separation layer being in a film form; providing a second substrate on the separation layer, the second substrate being configured as a flexible substrate; and processing the separation layer, such that at least a part of the separation layer is cracked from the film form, thereby separating the second substrate from the first substrate.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: December 20, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventor: Ce Zhao
  • Patent number: 11527260
    Abstract: A magnetic recording medium that can exhibit good traveling performance during use is provided. This magnetic recording medium is a tape-shaped magnetic recording medium, and includes a substrate including a polyester as a main component, a base layer disposed on the substrate, a magnetic layer disposed on the base layer, and a back layer disposed on a side of the substrate opposite to the base layer. A surface of the back layer opposite to the substrate has a kurtosis of 2.0 or more. On a surface of the magnetic layer, recesses having a depth of 20% or more of the average thickness of the magnetic layer are formed at a ratio of 10 or more and 200 or less per 1600 ?m2. A surface of the magnetic layer has arithmetic average roughness Ra of 2.5 nm or less. The entire magnetic recording medium has a BET specific surface area of 3.5 m2/g or more in a state where the lubricant has been removed from the magnetic recording medium and the magnetic recording medium has been dried.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: December 13, 2022
    Assignee: Sony Group Corporation
    Inventors: Minoru Yamaga, Takanobu Iwama, Jun Takahashi
  • Patent number: 11522420
    Abstract: A method of producing a motor core includes preparing a soft magnetic plate containing a transition metal element, preparing a modifying member containing an alloy having a melting point lower than a melting point of the soft magnetic plate, bringing the modifying member into contact with a part of a plate surface of the soft magnetic plate, causing the modifying member to diffuse and penetrate into the soft magnetic plate from a contact surface between the soft magnetic plate and the modifying member and forming a hard magnetic phase-containing part in a part of the soft magnetic plate, and laminating a plurality of soft magnetic plates on each other after the modifying member is brought into contact with the part of the plate surface of the soft magnetic plate.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: December 6, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihito Kinoshita, Noritsugu Sakuma, Tetsuya Shoji, Kosuke Yonekawa
  • Patent number: 11499122
    Abstract: Methods for cleaning surfaces are provided. Such a method may comprise contacting a surface with a fluid comprising a compound of Formula I for a period of time; and removing the fluid from the surface, thereby providing a cleaned surface. Vapor phase degreasing systems for cleaning a surface of a component are also provided. Such a system may comprise a boil sump comprising liquid comprising a compound of Formula I; and a holder configured to hold a component in a vapor formed from the liquid.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: November 15, 2022
    Assignee: The Boeing Company
    Inventors: Andrew Michael Zweig, Waynie Mark Schuette, Carolyn L. Kupper
  • Patent number: 11501914
    Abstract: The present invention discloses a grain boundary diffusion method of an R—Fe—B series rare earth sintered magnet, an HRE diffusion source, and a preparation method thereof, comprising the following steps: engineering A of forming a dry layer on a high-temperature-resistant carrier, the dry layer being adhered with HRE compound powder, the HRE being at least one of Dy, Tb, Gd, or Ho; and engineering B of performing heat treatment on the R—Fe—B series rare earth sintered magnet and the high-temperature-resistant carrier treated with the engineering A in a vacuum or inert atmosphere and supplying HRE to a surface of the R—Fe—B series rare earth sintered magnet. The method can reduce the consumption of heavy rare earth element and control the loss of residual magnetism Br while increasing the coercivity.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: November 15, 2022
    Assignee: Fujian Changting Golden Dragon Rare-Earth Co., Ltd
    Inventors: Yulin Lin, Hiroshi Nagata, Zongbo Liao, Juhua Xie, Hanshen Ye
  • Patent number: 11492684
    Abstract: An R-T-B based permanent magnet, in which R is a rare earth element, T is Fe or a combination of Fe and Co, and B is boron, includes main phase grains made of an R2T14B crystal phase and grain boundaries formed between the main phase grains. The grain boundaries include an R—O—C—N concentrated part having higher concentrations of R, O, C, and N than that of the main phase grains. The R—O—C—N concentrated part includes a heavy rare earth element. The R—O—C—N concentrated part has a core part and a shell part covering at least part of the core part. A concentration of the heavy rare earth element in the shell part is higher than a concentration of the heavy element in the core part. A covering ratio of the shell part with respect to the core part of the R—O—C—N concentrated part is 45% or more in average.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: November 8, 2022
    Assignee: TDK CORPORATION
    Inventor: Makoto Iwasaki
  • Patent number: 11495376
    Abstract: The present invention discloses rare earth-bonded magnetic powder and a preparation method therefor. The bonded magnetic powder is of a multilayer core-shell structure, and comprises a core layer and an antioxidant layer (3), wherein the core layer is formed by RFeMB, R is Nd and/or PrNd, and M is one or more of Co, Nb, and Zr; and the core layer is coated with an iron-nitrogen layer (2). In addition, the present invention also discloses the preparation method for the rare earth-bonded magnetic powder and a bonded magnet. The oxidation and corrosion of magnetic raw powder during phosphorization and subsequent treatment process are effectively prevented, thereby further improving the long-term temperature resistance and environmental tolerance of the material.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: November 8, 2022
    Assignees: GRIREM ADVANCED MATERIALS CO., LTD., GUOKE RE ADVANCED MATERIALS CO., LTD.
    Inventors: Yang Luo, Hongbin Zhang, Zhou Hu, Dunbo Yu, Ningtao Quan, Yuanfei Yang, Wenlong Yan, Jiajun Xie
  • Patent number: 11479845
    Abstract: Embodiments are directed to a method of forming a magnetic stack arrangement of a laminated magnetic inductor having a high frequency peak quality factor (Q). A first magnetic stack is formed having one or more magnetic layers alternating with one or more insulating layers in a first inner region of a laminated magnetic inductor. A second magnetic stack is formed opposite a surface of the first magnetic stack in an outer region of the laminated magnetic inductor. A third magnetic stack is formed opposite a surface of the second magnetic stack in a second inner region of the laminated magnetic inductor. The insulating layers are formed such that a thickness of an insulating layer in the second magnetic stack is greater than a thickness of an insulating layer in the first magnetic stack.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: October 25, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hariklia Deligianni, Bruce B. Doris, Eugene J. O'Sullivan, Naigang Wang
  • Patent number: 11482245
    Abstract: A magnetic recording medium that can exhibit good traveling performance during use is provided. This magnetic recording medium is a tape-shaped magnetic recording medium, and includes a substrate, a base layer disposed on the substrate, and a magnetic layer disposed on the base layer. On the surface of the magnetic layer, recesses having a depth of 20% or more of the average thickness of the magnetic layer are formed at a ratio of 20 or more and 200 or less per 1600 ?m2. On the surface of the magnetic layer, a logarithmic decay rate determined by a pendulum viscoelasticity test at a temperature of 10° C. or higher and 45° C. or lower is 0.025 or more and 0.035 or less. A difference between a maximum value of the logarithmic decay rate and a minimum value of the logarithmic decay rate is 0 or more and 0.020 or less. The squareness ratio in the perpendicular direction is 65% or more. The average thickness of the magnetic layer is 80 nm or less. The average thickness of the magnetic recording medium is 5.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: October 25, 2022
    Assignee: Sony Group Corporation
    Inventor: Minoru Yamaga
  • Patent number: 11462959
    Abstract: A permanent magnet of an embodiment comprises: a base magnet represented by a-b-c (a includes a rare earth-based element, b includes a transition element, and c includes boron (B)); and a coating layer coated on a surface of the base magnet, wherein the coating layer comprises a compound containing a metal having magnetism, the compound including: a phosphor (P); and a metal belonging to the fourth period in the periodic table.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: October 4, 2022
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jong Soo Han, Seok Bae, Young Jae Lee, Dong Hyeok Choi, Jung Eun Lee
  • Patent number: 11315728
    Abstract: A method of increasing coercivity of a sintered Nd—Fe—B permanent magnet includes a first step of providing a sintered Nd—Fe—B magnet block having a pair of block surfaces extending perpendicular to a magnetization direction. The method then proceeds with depositing an organic adhesive layer on one of the block surfaces. Next, the method proceeds with depositing a powder containing at least one heavy rare earth element on the organic adhesive layer. After depositing the powder, the sintered Nd—Fe—B magnet block is pressed to adhere the powder to the organic adhesive layer. Then, the method follows with a step of removing excess powder from the sintered Nd—Fe—B magnet block to form a uniform film. Then, the powder is diffused into the sintered Nd—Fe—B magnet is diffused into the sintered Nd—Fe—B magnet block to produce a diffused magnet block. Next, the method proceeds with aging the diffused magnet block.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 26, 2022
    Assignee: YANTAI SHOUGANG MAGNETIC MATERIALS INC.
    Inventors: Kunkun Yang, Zhongjie Peng, Chuanshen Wang
  • Patent number: 11123775
    Abstract: A substrate-cleaning apparatus includes a transmission unit, a wet cleaning unit and a dry cleaning unit. The transmission unit includes a movable clamp for clamping a substrate that includes a face without covering the face of the substrate. The wet cleaning unit includes a wiper and a liquid pump. The wiper includes a strip of cleaning cloth and an abutting element for pressing the cleaning cloth against the face of the substrate. The liquid pump sends cleaning liquid to the abutting element that in turn sends the cleaning liquid to the cleaning cloth when the abutting element presses the cleaning cloth against the face of the substrate. The dry cleaning unit includes a wiper comprising a strip of cleaning cloth for wiping dry the face of the substrate without leaving any water mark on the face.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: September 21, 2021
    Assignee: STEK CO., LTD
    Inventor: Ming-Sheng Chen
  • Patent number: 11014849
    Abstract: Disclosed herein are systems and methods for ion exchanging glass articles. Methods for ion exchanging glass articles include receiving processing instructions from one or more user input devices, loading a cassette containing a plurality of glass articles into a molten salt bath of one or more ion exchange stations automatically with a robotic lift based on the processing instructions, removing the cassette from the molten salt bath automatically with the robotic lift after a predetermined time based on the processing instructions, and rotating the cassette automatically to drain fluid of the molten salt bath from the cassette.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: May 25, 2021
    Assignee: CORNING INCORPORATED
    Inventors: Michael David Harris, Timothy Leonard Hunt, Kevin Robert Kaelin, William James Miller, Patrick Aaron Parks, Jeanne Lynn Swecker, Christopher Lee Timmons
  • Patent number: 10971180
    Abstract: A method of forming a near field transducer (NFT), the method including the steps of depositing a primary material; and implanting a secondary element, wherein both the primary material and the secondary element are chosen such that the primary material is densified via implantation of the secondary element.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: April 6, 2021
    Assignee: Seagate Technology LLC
    Inventors: Sethuraman Jayashankar, Sarbeswar Sahoo
  • Patent number: 10875023
    Abstract: An oriented loading system is provided. The oriented loading system includes a substrate, a plurality of wells formed in the substrate, each well having a bottom and sidewalls, a plurality of particles loaded in the wells, wherein the particle comprises a core structure and an inner layer comprising magnetic material partially covering the core structure such that a part of the core structure uncovered by the inner layer is exposed, and a metal layer comprising magnetic material deposited partially in the sidewalls of the wells, wherein the inner layer is attracted by the metal layer such that the exposed core structure is oriented towards the bottom of the well or the inner layer is oriented towards the bottom of the well.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: December 29, 2020
    Assignee: PERSONAL GENOMICS, INC.
    Inventors: Ching-Wei Tsai, Hsin-Yi Hsieh, Yu-Hsuan Peng, Wen-Yih Chen, Chun-Jen Huang
  • Patent number: 10748684
    Abstract: To provide a rare earth magnet ensuring excellent magnetic anisotropy while reducing the amount of Nd, etc., and a manufacturing method thereof. A rare earth magnet comprising a crystal grain having an overall composition of (R2(1-x)R1x)yFe100-y-w-z-vCowBzTMv (wherein R2 is at least one of Nd, Pr, Dy and Tb, R1 is an alloy of at least one or two or more of Ce, La, Gd, Y and Sc, TM is at least one of Ga, Al, Cu, Au, Ag, Zn, In and Mn, 0<x<1, y=12 to 20, z=5.6 to 6.5, w=0 to 8, and v=0 to 2), wherein the average grain size of the crystal grain is 1,000 nm or less, the crystal grain consists of a core and an outer shell, the core has a composition of R1 that is richer than R2, and the outer shell has a composition of R2 that is richer than R1.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: August 18, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki Ito, Masao Yano, Hidefumi Kishimoto, Noritsugu Sakuma, Tetsuya Shoji, Akira Manabe
  • Patent number: 10720271
    Abstract: An R—Fe—B base sintered magnet is provided comprising a main phase containing an HR rich phase of (R?, HR)2(Fe,(Co))14B wherein R? is an element selected from yttrium and rare earth elements exclusive of Dy, Tb and Ho, and essentially contains Nd, and HR is an element selected from Dy, Tb and Ho, and a grain boundary phase containing a (R?, HR)—Fe(Co)-M1 phase in the form of an amorphous phase and/or nanocrystalline phase, the (R?, HR)—Fe(Co)-M1 phase consisting essentially of 25-35 at % of (R?, HR), 2-8 at % of M1 which is at least one element selected from Si, Al, Mn, Ni, Cu, Zn, Ga, Ge, Pd, Ag, Cd, In, Sn, Sb, Pt, Au, Hg, Pb, and Bi, up to 8 at % of Co, and the balance of Fe. The HR rich phase has a higher HR content than the HR content of the main phase at its center. The magnet produces a high coercivity despite a low content of Dy, Tb and Ho.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: July 21, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Tetsuya Ohashi, Tetsuya Kume, Koichi Hirota, Hajime Nakamura
  • Patent number: 10676816
    Abstract: A high-barrier film is provided that includes a biaxially-oriented polyethylene terephthalate (PET) layer having a first side and a second side opposite the first side, a cross-linked acrylic primer layer, and a metal barrier layer. The cross-linked acrylic primer layer is adjacent to the second side of the PET layer and has a dynamic coefficient of friction (?D) to steel of less than about 0.45, while the metal barrier layer is adjacent to the first side of the PET layer. The film has a total thickness of less than or equal to about 12 ?m. Processes for producing the high-barrier film are also provided.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: June 9, 2020
    Assignee: FLEX FILMS (USA) INC.
    Inventors: Steven Sargeant, Sudhir Naik
  • 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