Core (e.g., Compressed Powder) Patents (Class 336/233)
  • Patent number: 11915847
    Abstract: A dust core includes a metal magnetic material and a resin. Fine particles exist on a surface of the dust core.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: February 27, 2024
    Assignee: TDK CORPORATION
    Inventors: Ryoma Nakazawa, Takeshi Takahashi
  • Patent number: 11869691
    Abstract: A powder magnetic core includes a compact including soft magnetic powder, and an insulating-resin coating that covers a portion of a surface of the compact. A ratio of an area of the insulating-resin coating to a surface area of the compact is lower than or equal to 85%, and a maximum depth of unevenness on a surface of the insulating-resin coating is smaller than or equal to 20 ?m.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: January 9, 2024
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.
    Inventors: Tatsuya Saito, Asako Watanabe, Tomoyuki Ueno
  • Patent number: 11862379
    Abstract: In an exemplary embodiment, a coil component includes: a drum core 10 that includes a winding shaft 12 and flange parts 14a, 14b; a coil 40 that includes a winding part 42 and a pair of lead parts 44a, 44b led out from the winding part 42 toward a side face 22 of the flange part 14a and then bent onto the flange part 14a along the side face 22; and a pair of external electrodes 60a, 60b provided on the outer face 17a of the flange part 14a, and connected to the pair of lead parts 44a, 44b; wherein the shortest distance L4 between the side face 22 and the outermost periphery of the winding part 42 is shorter than the shortest distance L3 between a side face 24, opposite the side face 22, of the flange part 14a, and the outermost periphery of the winding part 42.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: January 2, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Motoki Matsui, Hidenori Aoki
  • Patent number: 11848149
    Abstract: Provided are a power supply member in a wireless power supply system, and applications of the power supply member. The power supply member includes: a first magnetic sheet that includes a first metal magnetic powder and a first resin, the first metal magnetic powder having a ratio of a length of a long side to a length of a short side is more than 1.0; a coil that is wound around and arranged on one surface of the first magnetic sheet; and a second magnetic sheet that is arranged on the same surface of the first magnetic sheet as the surface where the coil is arranged, is arranged on at least one of a side inside of an inner peripheral end of the coil or a side outside of an outer peripheral end of the coil, and includes a second metal magnetic powder and a second resin.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: December 19, 2023
    Assignee: FUJIFILM Corporation
    Inventor: Tatsuo Mikami
  • Patent number: 11783983
    Abstract: A laminated sheet includes a sheet-shaped inductor including a plurality of wirings and a magnetic layer embedding the plurality of wirings, and a processing stability layer disposed on at least one surface 6 in a thickness direction of the inductor. The magnetic layer includes a binder and a magnetic particle having a generally flat shape and whose material is a metal. The processing stability layer includes a cured product of a thermosetting resin composition. The thermosetting resin composition includes a thermosetting resin as an essential component. The thermosetting resin composition includes at least one kind of particle, as an optical component, selected from the group consisting of a first particle having a generally spherical shape and a second particle having a generally flat shape and whose material is an inorganic compound.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: October 10, 2023
    Assignee: NITTO DENKO CORPORATION
    Inventors: Yoshihiro Furukawa, Keisuke Okumura
  • Patent number: 11752549
    Abstract: A coil component includes: a magnetic body part and a cover part covering one side of a magnetic layer part; and a coil part embedded in the magnetic body part. The magnetic body part is comprised of the following two types of layers: (A) an oblate soft magnetic grain-containing layer, and (B) a spherical grain-containing layer, wherein layer (A) extends over the entire range of the magnetic body part except for a portion including the coil part in a direction perpendicular to an axis direction of the coil part, layer (B) adjoins layer (A) in the axis direction. The cover part is constituted by multiple layers including one or more of layer(s) (A) and one or more of layer(s) (B) and extending over the entire range of the magnetic body part in the direction perpendicular to the axis direction.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: September 12, 2023
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Masahiro Hachiya, Hitoshi Matsuura, Takayuki Arai, Shuhei Kurahashi, Hideo Machida, Hidekazu Teshigawara, Naoya Honmo
  • Patent number: 11646146
    Abstract: A coil component includes a body comprising a support member and a coil portion embedded in one surface of the support member; and external electrodes connected to the coil portion, wherein the body comprises a plurality of metal particles, at least some of the plurality of metal particles comprises a plastically deformable first particle, and at least some of the first particles have a deformed surface and thus have a shape corresponding to a surface of a neighboring magnetic metal particle.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: May 9, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young Il Lee, Jeong Gu Yeo, Ji Hoon Hwang, Myoung Ki Shin, Byeong Cheol Moon
  • Patent number: 11616394
    Abstract: An electronic device includes a magnetic element, and a first circuit module. The magnetic element includes a magnetic core set and a winding assembled in the magnetic core set. The first circuit module is coupled to the first winding of the magnetic element. A vertical projection area of the first circuit module has an overlap portion with a vertical projection area of the winding of the magnetic core set on a first plane, and the first plane is a horizontal plane at which the winding is located.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: March 28, 2023
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Min Zhou, Ke Dai, Ming-Hui Dai, Zi-Ying Zhou
  • Patent number: 11610712
    Abstract: An inductor component comprising a magnetic layer containing a magnetic powder and a resin containing the magnetic powder, a first spiral wiring and a second spiral wiring disposed on the same plane in the magnetic layer and adjacent to each other, and an insulating layer disposed between the first spiral wiring and the second spiral wiring and containing no magnetic substance. The first spiral wiring includes a first side surface facing the second spiral wiring, and at least a portion of the first side surface is in contact with the magnetic layer.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: March 21, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshinori Taguchi, Yoshimasa Yoshioka, Akinori Hamada
  • Patent number: 11605491
    Abstract: A core main body includes: an outer peripheral iron core, and at least three iron cores coupled to an inner surface of the outer peripheral iron core, in which a gap is formed between adjacent iron cores among the at least three iron cores, the gap being magnetically connectable, and a plurality of notches are formed on an outer circumferential surface of the outer peripheral iron core, the plurality of notches extending in an axial direction of the outer peripheral iron core. The reactor includes such a core body.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: March 14, 2023
    Assignee: Fanuc Corporation
    Inventor: Kenichi Tsukada
  • Patent number: 11569014
    Abstract: A dust core includes large particles having an average particle size of 8-15 ?m, medium particles having an average particle size of 1-5 ?m, and small particles having an average particle size of 300-900 nm when a cross section thereof is observed. An area ratio occupied by the large particles is 50% to 90%, an area ratio occupied by the medium particles is 0% to 30%, and an area ratio occupied by the small particles is 5% to 30%, when a total area ratio occupied by the large particles, the medium particles and the small particles is 100% in the cross section. Vickers hardness (Hv) of the large particles, the medium particles and the small particles is 150-600 respectively. The small particles are alloy powder containing Fe and at least Si or N. The dust core may be included in an inductor element.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: January 31, 2023
    Assignee: TDK CORPORATION
    Inventors: Hideharu Moro, Akihiro Harada, Masahito Koeda
  • Patent number: 11515079
    Abstract: One object is to suppress thermal shrinkage of a cover resin layer at the time of thermal curing. A laminated coil according to one embodiment of the present invention is provided with a magnetic substrate formed of a sintered magnetic material, an insulation resin layer formed on the magnetic substrate, a cover resin layer formed on the insulation resin layer, and a coil conductor embedded in the insulation resin layer. In one embodiment of the present invention, said insulation resin layer includes a first resin and first filler particles, and said cover resin layer includes a second resin and second filler particles. A filling factor of the second filler particles in the cover resin layer is higher than a filling factor of the first filler particles in the insulation resin layer.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: November 29, 2022
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Takashi Nakajima, Keiko Shiroki
  • Patent number: 11342119
    Abstract: A multilayer capacitor and a method of manufacturing includes a conductive resin layer of an external electrode disposed on a first electrode layer. The conductive resin layer includes a conductive connecting part and an intermetallic compound contacting the first electrode layer and the conductive connecting part. The conductive connecting part contacts a plurality of metal particles and a second electrode layer, such that the 7 equivalent series resistance (ESR) of the multilayer capacitor is decreased and warpage strength of the multilayer capacitor is improved.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jung Min Kim, Bon Seok Koo, Jung Wook Seo, Yoon Hee Lee, Kun Hoi Koo
  • Patent number: 11328847
    Abstract: A soft magnetic alloy including a compositional formula of ((Fe(1?(?+?))X1?X2?)(1?(a+b+c+e))MaBbPcCue)1?fCf, wherein X1 is one or more selected from the group consisting Co and Ni, X2 is one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements, “M” is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W, and V, 0.030<a?0.14, 0.028?b?0.20, 0?c?0.030, 0<e?0.030, 0<f?0.040, ??0, ??0, and 0??+??0.50 are satisfied.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: May 10, 2022
    Assignee: TDK CORPORATION
    Inventors: Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Kensuke Ara, Seigo Tokoro, Shota Otsuka
  • Patent number: 11276519
    Abstract: A coil component including an element assembly and a coil conductor embedded in the element assembly. The element assembly includes a first magnetic layer and a second magnetic layer that constitute a first principal surface and a second principal surface, respectively, where the first principal surface and the second principal surface are opposite to each other in the element assembly. The first magnetic layer has a higher relative magnetic permeability than the second magnetic layer. At least part of a winding portion of the coil conductor is located in the first magnetic layer. The first magnetic layer contains metal magnetic particles and a resin, and the second magnetic layer contains metal magnetic particles, a resin, and zinc oxide particles. The metal magnetic particles and the zinc oxide particles are dispersed in the resin.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: March 15, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Gota Shinohara, Noriko Shimizu, Keiichi Ishida, Hironobu Kubota, Mari Yonemura, Takao Kawachi
  • Patent number: 11276516
    Abstract: There is provided a magnetic powder for high frequency use including, in percent by mass, 0.2 to 5.0% C and at least one selected from Group IV to VI elements, Mn, and Ni in a total of 0.1 to 30%, the balance being Fe or/and Co, inclusive 0% for Co), and incidental impurities, wherein the saturation magnetization exceeds 1.0 T and satisfies Expression (1): Co%/(Co%+Fe%)?0.50. According to the magnetic powder, there is provided a metal magnetic powder having a saturation magnetization exceeding 1.0 T and also having a high FR of 200 MHz or more and a magnetic resin composition including the metal magnetic powder.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: March 15, 2022
    Assignee: Sanyo Special Steel Co., Ltd.
    Inventors: Toshiyuki Sawada, Kodai Miura
  • Patent number: 11195646
    Abstract: Provided herein is a soft magnetic alloy powder that can exhibit a high saturation flux density and desirable soft magnetic characteristics. A dust core using the soft magnetic alloy powder is also provided. The soft magnetic alloy powder is an Fe-based nanocrystalline soft magnetic alloy powder of a crystallized Fe-based amorphous soft magnetic alloy powder, and has a DSC curve with a first peak that is 15% or less of a first peak of the Fe-based amorphous soft magnetic alloy in terms of a maximum value.
    Type: Grant
    Filed: June 24, 2018
    Date of Patent: December 7, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toshiyuki Kojima, Masato Maede
  • Patent number: 11170934
    Abstract: A method is provided for the production of a wound nanocrystalline magnetic core in which a nanocrystalline metal strip made of (Fe1-aMa)100-x-y-z-?-?CuxSiyBzM??X? is pre-wound to form a first coil. An insulating foil is provided that is coated with an adhesive on at least one side. An adhesive is applied to the nanocrystalline metal strip to laminate the insulating foil onto the metal strip and thereby to stabilise the metal strip as it is wound off the coil. The laminated nanocrystalline metal strip and the insulating foil are bifilar wound to form a bifilar, layer-insulated coil.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: November 9, 2021
    Assignee: VACUUMSCHMELZE GMBH & CO. KG
    Inventors: Jörg Petzold, Oliver Friedrich, Volker Kleespies, Johannes Binkofski
  • Patent number: 11145448
    Abstract: A soft magnetic alloy powder includes a plurality of soft magnetic alloy particles of a soft magnetic alloy represented by a composition formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))MaBbPcSidCe, wherein X1 represents Co and/or Ni; X2 represents at least one selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements; M represents at least one selected from the group consisting of Nb, Hf, Zr, Ta, Mo, W, and V; 0.020?a?0.14, 0.020<b?0.20, 0<c?0.15, 0?d?0.060, 0?e?0.040, ??0, ??0, and 0??+??0.50 are satisfied, and wherein the soft magnetic alloy has a nano-heterostructure with initial fine crystals present in an amorphous substance; and the surface of each of the soft magnetic alloy particles is covered with a coating portion including a compound of at least one element selected from the group consisting of P, Si, Bi, and Zn.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: October 12, 2021
    Assignee: TDK CORPORATION
    Inventors: Masakazu Hosono, Kenji Horino, Hiroyuki Matsumoto, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Isao Nakahata
  • Patent number: 11114226
    Abstract: A magnetic iron alloy and process of making the same. The alloy includes iron, approximately 2 wt. % to approximately 8 wt. % cobalt, approximately 0.05 wt. % to approximately 5 wt. % manganese, and approximately 0.05 wt. % to approximately 5 wt. % silicon. The alloy may also include up to approximately 0.3 wt. % chromium, up to approximately 2 wt. % vanadium, up to approximately 1 wt. % nickel, up to approximately 0.05 wt. % niobium, and up to approximately 0.02 wt. % carbon.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: September 7, 2021
    Assignee: CARPENTER TECHNOLOGY CORPORATION
    Inventors: Tanjore V. Jayaraman, Chins Chinnasamy, Samuel Kernion, Eric Fitterling
  • Patent number: 10854383
    Abstract: A coil electrode component includes a body including magnetic metal material, a coil disposed in the body and having first and second lead parts respectively outwardly exposed through first and second surfaces of the body. A first plating electrode is formed on the first surface of the body and a further surface of the body connected to and extended from the first surface of the body, and connected to the first lead part. A second plating electrode is formed on the second surface of the body and a further surface of the body connected to and extended from the second surface of the body, and connected to the second lead part.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: December 1, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Min Sung Choi
  • Patent number: 10796828
    Abstract: A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion, and outer electrodes electrically connected to the coil conductor. The average particle diameter of the metal particles in the magnetic portion is 1 ?m or more and 5 ?m or less, and the CV value of the metal particles is 50% or more and 90% or less.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: October 6, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takuya Ishida, Gota Shinohara
  • Patent number: 10638558
    Abstract: An apparatus for simultaneously heating a plurality of food products, comprising: a containment structure forming a housing chamber; one or more separating elements mounted in the housing chamber to delimit a plurality of separate housing compartments for receiving the food products; radio frequency dielectric heating means with an operating frequency of between 1 MHz and 300 MHz, mounted in the containment structure and comprising at least one first electrode and one second electrode; wherein the housing compartments are aligned along a row, the first electrode and the second electrode delimiting on two opposite sides the row; and wherein inside the housing chamber, between the first electrode and the second electrode, there is also at least one inductor.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: April 28, 2020
    Assignee: ILLINOIS TOOL WORKS, INC.
    Inventors: Michele Sclocchi, Christine Rollet, Marco Carcano, Marco Bullo, Francesco Gambato
  • Patent number: 10622129
    Abstract: A magnetic material has: multiple soft magnetic alloy grains that contain Fe, element L (where element L is Si, Zr, or Ti), and element M (where element M is not Si, Zr, or Ti, and oxidizes more easily than Fe); a first oxide film that contains element L and covers each of the multiple soft magnetic alloy grains; a second oxide film that contains element M and covers the first oxide film; a third oxide film that contains element L and covers the second oxide film; a fourth oxide film that contains Fe and covers the third oxide film; and bonds that are constituted by parts of the fourth oxide film and that bond the multiple soft magnetic alloy grains together.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: April 14, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yoko Orimo, Xinyu Li, Shinsuke Takeoka, Chengli He, Kenji Otake
  • Patent number: 10593449
    Abstract: Embodiments are directed to a method of forming a laminated magnetic inductor and resulting structures having multiple magnetic layer thicknesses. A first magnetic stack having one or more magnetic layers alternating with one or more insulating layers is formed in a first inner region of the laminated magnetic inductor. A second magnetic stack is formed opposite a major surface of the first magnetic stack in an outer region of the laminated magnetic inductor. A third magnetic stack is formed opposite a major surface of the second magnetic stack in a second inner region of the laminated magnetic inductor. The magnetic layers are formed such that a thickness of a magnetic layer in each of the first and third magnetic stacks is less than a thickness of a magnetic layer in the second magnetic stack.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 17, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hariklia Deligianni, Bruce B. Doris, Eugene J. O'Sullivan, Naigang Wang
  • Patent number: 10573451
    Abstract: In accordance with an exemplary embodiment, a power inductor includes a body, a base disposed in the body, and a coil pattern disposed on at least one surface of the base, in which the body includes metal powder, a polymer, and a thermal conductive filler and the base is formed by bonding a copper foil to both surfaces of a metal plate comprising iron.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: February 25, 2020
    Assignee: MODA-INNOCHIPS CO., LTD.
    Inventors: In Kil Park, Tae Hyung Noh, Gyeong Tae Kim, Seung Hun Cho, Jun Ho Jung, Ki Joung Nam, Jung Gyu Lee
  • Patent number: 10544488
    Abstract: In some embodiments, a magnetic body 1 has soft magnetic alloy grains 11 that contain Fe, M (M is a metal element that oxidizes more easily than Fe), and S, as well as oxide films 12 produced by partial oxidization of the soft magnetic alloy grains 11, wherein the magnetic body 1 has its adjacent soft magnetic alloy grains 11 bonded together at least partially through the oxide films 12, and contains Fe by 92.5 to 96 percent by weight and S by 0.003 to 0.02 percent by weight. The magnetic body can have high levels of both magnetic permeability and volume resistivity, to meet the demand for smaller, higher-performance electronic components.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: January 28, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Atsushi Tanada, Kenji Takashima, Yoko Orimo
  • Patent number: 10490327
    Abstract: A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion, and outer electrodes electrically connected to the coil conductor. The average particle diameter of the metal particles in the magnetic portion is 1 ?m or more and 5 ?m or less, and the CV value of the metal particles is 50% or more and 90% or less.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: November 26, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takuya Ishida, Gota Shinohara
  • Patent number: 10186358
    Abstract: Provided are: a metal powder core having a configuration suitable for core loss reduction and strength improvement; a coil component employing this; and a fabrication method for metal powder core. The metal powder core is obtained by dispersing Cu powder among soft magnetic material powder comprising pulverized powder of Fe-based soft magnetic alloy and atomized powder of Fe-based soft magnetic alloy and then by performing compaction. The fabrication method for metal powder core includes: a mixing step of mixing together soft magnetic material powder containing thin-leaf shaped pulverized powder of Fe-based soft magnetic alloy and atomized powder of Fe-based soft magnetic alloy, Cu powder, and a binder and thereby obtaining a mixture; a forming step of performing pressure forming on the mixture obtained at the mixing step; and a heat treatment step of annealing a formed article obtained at the forming step.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: January 22, 2019
    Assignee: Hitachi Metals, Ltd.
    Inventors: Tetsuro Kato, Shin Noguchi, Kazunori Nishimura
  • Patent number: 10157708
    Abstract: The present disclosure provides a wrapping method for the common inductor. The common mode inductor includes a first coil winding and a second coil winding. The wrapping method for a common mode inductor includes steps of: disposing two isolation blocking sheets at different positions of a magnetic core; wrapping the first coil winding around the magnetic core, wherein the first coil winding is divided into two wrapping areas by one of the isolation blocking sheets; wrapping the second coil winding around the magnetic core, wherein the second coil winding is divided into two wrapping areas by the other one of the isolation blocking sheets, wherein the first coil winding and the second coil winding are symmetrically wrapped.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: December 18, 2018
    Assignee: Delta Electronics (Jiangsu) Ltd.
    Inventor: Tangqian Cheng
  • Patent number: 10153082
    Abstract: An electronic component includes a composite body made of a composite material of a resin material and a metal powder; and a metal film disposed on an outer surface of the composite body. The metal film is in contact with the resin material and the metal powder of the composite body, and an average particle diameter of crystals of the metal film contacting the resin material is 60% or more and 120% or less of an average particle diameter of crystals of the metal film contacting the metal powder.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: December 11, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shinji Otani, Masaki Tsutsumi, Yoshinori Ueda, Hayami Kudo
  • Patent number: 9961985
    Abstract: A case for a powered toothbrush comprises a housing having an interior for receiving a powered toothbrush, and a cover, wherein the cover substantially obfuscates the interior but is sufficiently light-transmissive to communicate the presence of an indicator from within the interior. Also provided is a powered toothbrush and case system.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: May 8, 2018
    Assignee: Colgate-Palmolive Company
    Inventors: Takashi Shigeno, Kazuya Andachi, Tamaki Ito
  • Patent number: 9953753
    Abstract: An electronic component includes a magnetic body having internal coil patterns. The magnetic body includes a core part including the internal coil patterns; and upper and lower cover parts disposed above and below the core part, respectively. Magnetic wires are disposed in the core part, and magnetic plates are disposed in the upper and lower cover parts.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: April 24, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Byeong Cheol Moon
  • Patent number: 9907184
    Abstract: A power supply module and its manufacturing method are disclosed. The manufacturing method for the power supply module includes: configuring a coil such that coil terminals are configured by way of electrical connection in the preset circuit connection configuration of the connector; preparing a mold cavity, and placing the connector housed with the coil and the electronic components into the mold cavity; making a magnetic mixture, and filling the mold cavity where the connector is placed with the magnetic mixture to form a magnetic body under pressure, wherein the magnetic body encapsulates at least the coil, the electronic components and a portion of the connector adapted to house the coil and the electronic components, and the terminal is exposed outside the magnetic body; demolding the magnetic body from the mold cavity; and increasing the temperature of the demolded magnetic body by heating.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: February 27, 2018
    Assignee: SUMIDA ELECTRIC (H.K.) COMPANY LIMITED
    Inventors: Hongnian Zhang, Yanfei Liu, Douglas James Malcolm
  • Patent number: 9852842
    Abstract: A coil electronic component includes a body having a coil part disposed therein and external electrodes connected to the coil part. The body includes a plurality of magnetic particles. In one example, a particle size distribution D50 of the magnetic particles in the body is 1 ?m or less. In other examples, a particle size distribution D99 of the magnetic particles in the body is 1 ?m or less; a particle size distribution ratio D99/D50 of the magnetic particles in the body is 1.5 or less; and/or a variation coefficient of the particle size of the magnetic particles in the body is 20% or less.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: December 26, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Il Jin Park, Se Hyung Lee, Byeong Cheol Moon
  • Patent number: 9812237
    Abstract: Soft magnetic core, in which permeabilities that occur at least two different locations of the core are different.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: November 7, 2017
    Assignee: VACUUMSCHMELZE GMBH & CO. KG
    Inventors: Jivan Kapoor, Christian Polak
  • Patent number: 9620858
    Abstract: A compact random media size antenna employing random magnetic and dielectrics nm to mm range size particles in polymer hosts is used to transfer E & M oscillations in 1 kHz to 900 Mhz range using a 1 cm to 1 meter length antenna. This is achieved by using small size particles and a random mean path length of E & M wavefront travel in and about a core tube of effective length matching Leff=L2/2ltr, equivalent to ?/2 for transmitting and receiving E & M radiation, where L is the physical size of the antenna, ltris the transport scattering random walk length between particles and ? is the frequency wavelength.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 11, 2017
    Inventor: Robert R. Alfano
  • Patent number: 9595379
    Abstract: A cooling device for a transformer, capable of reducing heat generation from windings and a core, is provided. The cooling device for the transformer includes a primary winding and a second winding wound around a center part of the core and separated from each other. A heat-dissipating panel for releasing heat generated from the core, the primary winding, and the secondary winding to the exterior using heat conductance is inserted between the primary winding and the secondary winding. In addition, the heat-dissipating panel is configured to release heat using exposed edges of the primary winding and the secondary winding.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: March 14, 2017
    Assignee: Hyundai Motor Company
    Inventors: In Yong Yeo, Byeong Seob Song, Dae Woo Lee, Jin Young Yang, Woo Young Lee
  • Patent number: 9466994
    Abstract: A mobile terminal power receiving module 1 which is housed together with a rechargeable battery 3 in a rechargeable battery pack 2 in a mobile terminal such as a smart phone 5, includes a sheet coil 13 in which a coil 12 constituted by conductors is formed on a flexible circuit board 11 as a circuit pattern and a magnetic sheet 14 made of resin in which magnetic powder is dispersed.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: October 11, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Hiroshi Yamazaki, Kojiro Kameyama, Eiji Toyoda, Hajime Sunahara
  • Patent number: 9440542
    Abstract: A reactor includes a coil formed by connecting a pair of coil elements configured by a wound wire, and magnetic core. The reactor for an on-vehicle converter converts an input voltage. Electricity applying conditions include a maximum DC current of 100 A or higher and 1000 A or lower, an average voltage of 100 V or higher and 1000 V or smaller, and a usable frequency of 5 kHz or higher and 100 kHz or smaller. The magnetic core is obtained by combining a plurality of divided core pieces without a gap provided. All the divided core pieces are made of hardened compact obtained by hardening resin of composite material containing magnetic powder and the resin. A distance between an inner peripheral surface of the coil element and an outer peripheral surface of the magnetic core opposite to the inner peripheral surface is 0.1 mm or more and 2 mm or less.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: September 13, 2016
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD.
    Inventors: Kazuhiro Inaba, Shinichiro Yamamoto
  • Patent number: 9287026
    Abstract: An object is to provide a magnetic material and coil component offering improved magnetic permeability and insulation resistance, while also offering improved high-temperature load, moisture resistance, water absorbency, and other reliability characteristics at the same time. A magnetic material that has multiple metal grains constituted by Fe—Si-M soft magnetic alloy (where M is a metal element that oxidizes more easily than Fe), as well as oxide film constituted by an oxide of the soft magnetic alloy and formed on the surface of the metal grains, wherein the magnetic material has bonding parts where adjacent metal grains are bonded together via the oxide film formed on their surface, as well as bonding parts where metal grains are directly bonded together in areas having no oxide film, and resin material is filled in at least some of the voids generating as a result of accumulation of the metal grains.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: March 15, 2016
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Hitoshi Matsuura, Masahiro Hachiya, Kenji Otake
  • Patent number: 9165705
    Abstract: A laminated inductor having an internal conductor forming region, as well as a top cover region and bottom cover region formed in a manner sandwiching the internal conductor forming region between top and bottom; wherein the internal conductor forming region has a magnetic part formed with soft magnetic alloy grains, as well as helical internal conductor embedded in the magnetic part; and at least one of the top cover region and bottom cover region (or preferably both) is/are formed with soft magnetic alloy grains whose average grain size is greater than that of grains in the internal conductor forming region including the soft magnetic alloy grains constituting the magnetic part.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: October 20, 2015
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Hitoshi Matsuura, Takayuki Arai, Kenji Otake
  • Patent number: 9030287
    Abstract: A filter body of a common mode noise filter includes: a non-magnetic body; a first magnetic body and a second magnetic body sandwiching the non-magnetic body; and a first coil conductor and a second coil conductor of planar shape which are embedded in the non-magnetic body and positioned on the first magnetic body side and second magnetic body side in the non-magnetic body in a manner facing each other in a non-contact state; and also has a non-magnetic first protective part and second protective part which are made of a non-magnetic material whose strength is higher than the first magnetic body and second magnetic body and which are positioned on the outermost side of the filter body in a manner sandwiching the first magnetic body and second magnetic body.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: May 12, 2015
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Yoshiyuki Motomiya, Koji Taketomi, Kenichiro Nogi, Takumi Takahashi, Katsuyuki Kayahara
  • Publication number: 20150123761
    Abstract: A rod-shaped magnetic core element, having a first end with a spherical or cylindrical recess or a spherical or cylindrical connecting protrusion, and a second end with a spherical or cylindrical recess or a spherical or cylindrical connecting protrusion so that a bent connection of at least two magnetic core elements is variably adjustable. Magnetic core elements comprising spherical or cylindrical magnetic core ends of this type allow a nearly gap-free construction with little magnetic leakage due to slightly larger end surfaces in comparison with ferrite rods having beveled plane end section surfaces. The enlarged end surface of the spherical surface advantageously allows a more stable connection of individual magnetic core elements without adhesive bonding. This allows the construction of flexible, multiple-member and inexpensive rod core coils and antennae.
    Type: Application
    Filed: November 3, 2014
    Publication date: May 7, 2015
    Inventor: Johann WINKLER
  • Publication number: 20150115766
    Abstract: It is an objective of the invention to provide a dust core made of an Fe-based amorphous metal powder having excellent magnetic properties, in which the dust core has a higher-than-conventional density, excellent magnetic properties and a high mechanical strength. There is provided a dust core including a mixture powder compacted, the mixture powder including: an Fe-based amorphous metal powder having a crystallization temperature Tx (unit: K), the Fe-based amorphous metal powder being plastically deformed, the plastically deformed metal Fe-based amorphous metal powder having a filling factor in the dust core higher than 80% and not higher than 99%; and a resin binder having a melting point Tm (unit: K), in which the Tx and Tm satisfy a relationship of “Tm/Tx?0.70”.
    Type: Application
    Filed: October 23, 2014
    Publication date: April 30, 2015
    Inventors: Masami TAGUCHI, Shigeho TANIGAWA, Shin NOGUCHI
  • Publication number: 20150104664
    Abstract: In a magnetic component, such as an inductor and an antenna, produced with a metal magnetic powder, a complex number component of magnetic permeability that is a loss in the GHz band was high. A magnetic component obtained by molding a soft magnetic metal powder can have a reduced loss factor in the GHz band. The soft magnetic metal powder is characterized by containing iron as a main ingredient, and having an average particle size of not larger than 300 nm, a coercive force (Hc) of 16 to 119 kA/m (200 to 1500 Oe), a saturation magnetization of not less than 90 Am2/kg, and a volume resistivity of not less than 1.0×101 ?·cm. The volume resistivity is determined by measuring, by a four probe method, a molded body formed by vertically pressurizing 1.0 g of the metal powder at 64 MPa (20 kN).
    Type: Application
    Filed: March 13, 2013
    Publication date: April 16, 2015
    Inventors: Kazumasa Ikari, Masahiro Gotoh, Takayuki Yoshida
  • Patent number: 9007159
    Abstract: A coil-type electronic component having a coil inside or on the surface of a base material is characterized in that the base material of the coil-type electronic component is constituted by a group of soft magnetic alloy grains inter-bonded via oxide layers, multiple crystal grains are present in each soft magnetic alloy grain, and the oxide layers preferably have a two-layer structure whose outer layer is thicker than the inner layer.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: April 14, 2015
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Masahiro Hachiya, Atsushi Tanada, Kenji Otake, Kiyoshi Tanaka, Tetsuyuki Suzuki
  • Patent number: 9000879
    Abstract: An electronic device comprising a first magnetic powder; a second magnetic powder, wherein the mean particle diameter of the first magnetic powder is larger than the mean particle diameter of the second magnetic powder, the Vicker's Hardness of the first magnetic powder is greater than the Vicker's Hardness of the second magnetic powder by a first hardness difference, and the first magnetic powder mixes with the second magnetic powder; and a conducting wire buried in the mixture of the first magnetic powder and the second magnetic powder; wherein by means of the first hardness difference of the first magnetic powder and the second magnetic powder, the mixture of the first magnetic powder and the second magnetic powder and the conducting wire buried therein are combined to form an integral magnetic body at a temperature lower than the melting point of the conducting wire.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: April 7, 2015
    Assignee: CYNTEC Co., Ltd.
    Inventors: Wen-Hsiung Liao, Roger Hsieh, Hideo Ikuta, Yueh-Lang Chen
  • Publication number: 20150077210
    Abstract: This disclosure provides a ferrite ceramic composition, a ceramic electronic component including the ceramic composition, and a process of producing a ceramic electronic component including the ferrite ceramic composition, of which the insulation performance can be secured even when fired simultaneously with a metal wire material containing Cu as the main component, and which can have good electric properties. The ferrite ceramic composition includes an Ni—Mn—Zn-based ferrite having a molar content of CuO of 5 mol % or less and in which, when the molar content (x) of Fe2O3 and the molar content (y) of Mn2O3 are expressed by a coordinate point (x,y), the coordinate point (x,y) is located in an area bounded by coordinate points A (25,1), B (47,1), C (47,7.5), D (45,7.5), E (45,10), F (35,10), G (35,7.5) and H (25,7.5).
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Tomoyuki ANKYU, Atsushi YAMAMOTO, Yuko NOMIYA, Wataru KANAMI
  • Patent number: 8975997
    Abstract: In a planar coil element, the quantitative ratio of inclined particles to total particles of a first metal magnetic powder contained in a metal magnetic powder-containing resin provided in a through hole of a coil unit is higher than the quantitative ratio of inclined particles to total particles of the first metal magnetic powder contained in the metal magnetic powder-containing resin provided in other than the through hole, and many of particles of the first metal magnetic powder in the magnetic core are inclined particles whose major axes are inclined with respect to the thickness direction and the planar direction of a substrate. Therefore, the planar coil element has improved strength as compared to a planar coil element shown in FIG. 9A and has improved magnetic permeability as compared to a planar coil element shown in FIG. 9B.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: March 10, 2015
    Assignee: TDK Corporation
    Inventors: Kyohei Tonoyama, Makoto Morita, Tomokazu Ito, Hitoshi Ohkubo, Manabu Ohta, Yoshihiro Maeda, Yuuya Kaname, Hideharu Moro