Patents Examined by Tuyen T. Nguyen
  • Patent number: 11190149
    Abstract: Radio frequency (RF) filters configured to filter undesired signal components (e.g., noise and harmonics) from RF signals are disclosed. In one embodiment, an RF filter includes a first inductor coil having a first winding and a second inductor coil having a second winding and a third winding. The second winding of the second inductor coil is configured to have a first mutual magnetic coupling with the first winding, while the third winding of the second inductor coil is configured to have a second mutual magnetic coupling with the first winding. The second winding is connected to the third winding such that the first mutual magnetic coupling and the second mutual magnetic coupling are in opposition. In this manner, the first inductor coil and the second inductor coil may be provided in a compact arrangement while providing weak mutual magnetic coupling between the first inductor coil and the second inductor coil.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: November 30, 2021
    Assignee: Qorvo US, Inc.
    Inventors: Dirk Robert Walter Leipold, George Maxim, Baker Scott, Danny W. Chang
  • Patent number: 11189417
    Abstract: A transformer device includes a transformer including a primary winding formed by winding a first conductor and a secondary winding provided to face the primary winding and formed by winding a second conductor, a first wire connected to the primary winding and drawn out to one side, a second wire connected to the secondary winding and drawn out to the same side as that of the first wire, a base material provided on the side from which the first wire and the second wire are drawn out, a primary circuit provided on the base material and connected to the primary winding via the first wire, and a secondary circuit provided on the base material and connected to the secondary winding via the second wire. With this configuration, the transformer device has an effect in that a structural waste can be suppressed.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: November 30, 2021
    Assignee: YAZAKI CORPORATION
    Inventor: Akinori Maruyama
  • Patent number: 11183329
    Abstract: An art includes a core part 10 provided with central leg parts 13A, 13B and right and left leg parts 11A, 11B, 12A, 12B arranged on both sides of the central leg parts 13A, 13B; a coil part 20 formed by winding a conducting wire around a circumference of the central leg parts 13A, 13B; and a heat transfer sheet 30 for dissipating heat in the coil part 20 to outside, in which the coil part 20 is configured in such a manner that a rectangular wire is wound around the circumference of the central leg parts by edgewise winding and a circumference of the coil part 20 wound therearound is abutted on the heat transfer sheet 30.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: November 23, 2021
    Assignee: SUMIDA CORPORATION
    Inventors: Takayuki Yamaguchi, Toshio Uchibori
  • Patent number: 11183323
    Abstract: There is provided a magnetic core component and the gap control method thereof. The magnetic core component includes a first magnetic component, a second magnetic component and a first gap control structure disposed therebetween. The first gap control structure includes thixotropic material and is applied on the first magnetic component and is cured, the second magnetic component is disposed on the cured first gap control structure, and a gap between the first magnetic component and the second magnetic component is controlled by an effective height of the first gap control structure. The gap control structure has minimum variability after it is cured, and its effective height can be always kept at a required gap height.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: November 23, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Haibin Xu, Tao Wang, Shouyu Hong, Zhenqing Zhao, Yicong Xie, Zengsheng Wang
  • Patent number: 11183322
    Abstract: Unique systems, methods, techniques and apparatuses for a ZVT ZCT resonant converter with a variable resonant tank are disclosed. One exemplary embodiment is a system comprising a bidirectional resonant converter comprising an input/output terminal, a switching device coupled with the input/output terminal, a resonant circuit coupled with the switching device and including a variable inductor, an output/input terminal coupled with the resonant circuit, and a DC biasing circuit operatively coupled with the variable inductor. The variable inductor comprises a toroidal core, a first winding wound around the toroidal core and coupled with the switching device and the output/input terminal, a second core structured to overlap a portion of the toroidal core, and a second winding wound around the second core and coupled with the DC biasing circuit. The DC biasing circuit is controllable to vary the inductance of the variable inductor by saturating a portion of the toroidal core.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: November 23, 2021
    Assignee: ABB Schweiz AG
    Inventors: Harish Suryanarayana, Jiaqi Liang, Jukka Pekka Kittila, Wen Ouyang
  • Patent number: 11177068
    Abstract: An on-load tap changer head includes: a first region for an insulating fluid of the on-load tap changer to flow; a second region separated from the first region by a wall; and a detector for detecting an increased flow speed of the insulating fluid. The detector includes: a flow flap in the first region configured to tilt from a defined flow speed of the insulating fluid from a first position to a second position; a first magnet secured to the flap such that in the second position of the flow flap, the first magnet is in an immediate vicinity of the wall; a second magnet in the second region in the immediate vicinity of the wall; and a switch in the second region that is operationally coupled to the second magnet such that tilting over of the flow flap from the first position to the second position actuates the switch.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: November 16, 2021
    Assignee: MASCHINENFABRIK REINHAUSEN GMBH
    Inventors: Joerg Atmanspacher, Michael Goss, Johannes Stempfhuber, Klaus Schlepp
  • Patent number: 11158454
    Abstract: A method for manufacturing an electronic component is provided. The method includes: placing an air-core coil in a mold; placing a mixture of an Fe—Si—Cr alloy, a thermosetting resin, and a solvent into the mold so as to embed the air-core coil in the mixture; after placing the mixture, applying pressure to the placed mixture so that a shape of the placed mixture conforms to the air-core coil and the mold; and after applying the pressure, heating the mixture at a predetermined temperature for a predetermined time so that the placed mixture is hardened.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: October 26, 2021
    Inventors: Shinichi Sakamoto, Douglas James Malcolm
  • Patent number: 11152147
    Abstract: A coil component includes: a body having a first surface and a second surface opposing each other in a thickness direction of the body and a wall surface connecting the first and second surfaces; a coil part including coil patterns and including at least one turn centered on the thickness direction; external electrodes disposed on the first surface of the body and electrically connected to the coil part; a shielding layer including a cap portion disposed on the second surface of the body and side wall portions disposed on the wall surface of the body and each having a first end connected to the cap portion; an insulating layer disposed between the body and the shielding layer; and a gap portion bounded by a second end of the shielding layer opposing the first end and the first surface of the body to expose portions of the wall surface.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tai Yon Cho, Chang Hak Choi, Byeong Cheol Moon, Sang Jong Lee, Hee Soo Yoon, Tae Jun Choi, Seung Hee Oh, Su Bong Jang
  • Patent number: 11145453
    Abstract: A coil component includes an element and a coil that is provided inside the element and that is spirally wound. The coil includes a plurality of coil conductor layers and an extended conductor layer, which are laminated in a first direction. The extended conductor layer overlaps a side gap portion, which is situated on an outer side of a region of the element that is surrounded by the coil conductor layers, and extends so as to reach an outer surface of the element. The element includes a first stress relaxation layer that contacts the coil conductor layers, and a second stress relaxation layer that, while extending along the extended conductor layer, contacts a coil-conductor-layer side of the extended conductor layer, and is positioned inside the side gap portion without reaching the outer surface of the element.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: October 12, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masayuki Oishi, Yasuhiro Itani, Hiroki Hashimoto, Takuma Shiro
  • Patent number: 11145449
    Abstract: A reactor includes a reactor main body that includes a core and a coil attached to the core, a casing that houses therein the reactor main body and has a portion where an opening is formed, a terminal stage that supports the portion of a conductor electrically connected to the coil, and a shielding member that is integrally formed with the terminal stage and suppresses the leakage of magnetic fluxes from the reactor main body while maintaining the opening opened.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: October 12, 2021
    Assignee: TAMURA CORPORATION
    Inventors: Yasuhiro Uekusa, Takahiro Yamada
  • Patent number: 11145450
    Abstract: To provide a magnetic element capable of reducing working man hour, the number of components, and an amount of a copper wire. A magnetic element 1 is provided with a coil assembly 4 including a core 2 formed by a compression molded magnetic body and a coil 3 wound on an outer periphery of the core 2, and an outer peripheral core 5 that surrounds an outer periphery of the coil assembly 4. The outer peripheral core 5 is formed by an injection molded magnetic body and includes an opening 5a into which the coil can be inserted, and a pair of grooves 5b into which both end portions in an axial direction of the core 2, the groove 5b being provided as a fixing unit for fixing the coil assembly 4 in the outer peripheral core and formed on an inner peripheral surface of the outer peripheral core.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: October 12, 2021
    Assignee: NTN CORPORATION
    Inventor: Kayo Sakai
  • Patent number: 11145452
    Abstract: An inductor includes a body including a support member, a coil, and an encapsulant, and external electrodes on external surfaces of the body. The coil in the body may be formed so that a plurality of coil patterns are continuously formed, wherein the coil pattern includes first and second coil layers, and the encapsulant extends downward between adjacent coil patterns to be between first coil layers of adjacent coil patterns.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: October 12, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Boum Seock Kim, Byeong Cheol Moon, Kang Wook Bong, Young Min Hur, Joung Gul Ryu
  • Patent number: 11139105
    Abstract: In an exemplary embodiment, a coil component includes: an element body part 10; a coil 40 embedded within the element body part 10 and constituted by a wound conductive wire; lead wires 44a, 44b that are each extended from the conductive wire and led out from the coil 40, and whose tip parts 46a, 46b are each fixed to a bottom face 22 of the element body part 10; and terminal parts 70a, 70b that are each constituted by the tip part 46a or 46b and a metal member 72a or 72b that is joined to the tip part 46a or 46b on the bottom face 22, and also has an opening 74 or 76 at a position overlapping the tip part 46a or 46b in a direction intersecting the bottom face 22.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: October 5, 2021
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Keizo Kawamura, Jun Ogasawara, Toshimasa Suzuki
  • Patent number: 11134570
    Abstract: An electronic module includes: a lead frame having at least one metal strip and a plurality of metal leads, wherein a magnetic body encapsulates a portion of each of the at least one metal strip with two ends of each of the at least one metal strip not covered by the magnetic body; and a substrate disposed on the lead frame, wherein the substrate is electrically connected to the plurality of metal leads and the at least one metal strip.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: September 28, 2021
    Assignee: CYNTEC CO., LTD.
    Inventors: Chun Hsien Lu, Bau-Ru Lu, Kaipeng Chiang
  • Patent number: 11133125
    Abstract: A coil component includes a body, and a coil portion embedded in the body and including a coil pattern having a plurality of coil turns and a support member supporting the coil pattern. A height of an internal coil turn of the plurality of coil turns is lower than a height of an external coil turn of the plurality of coil turns connected to the internal coil pattern and wound outwardly of the internal coil turn. A method of manufacturing the coil component includes forming a spiral-shaped plating seed pattern on a support member, forming a cutting portion cutting the spiral-shaped plating pattern, and forming a coil pattern extending across the cutting portion by performing plating on the spiral-shaped plating seed pattern.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: September 28, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Eo Jin Choi, Jae Hun Kim
  • Patent number: 11127528
    Abstract: A coil component includes a device main body composed of an insulator, a coil conductor which is disposed inside or on a surface of the device main body, and an outer electrode which is disposed on a surface of the device main body and electrically connected to the coil conductor. The outer electrode includes a Ag-containing layer containing Ag grains with an average grain size of 4.2 to 15 ?m.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: September 21, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Keiichi Tsuduki, Kouhei Matsuura, Hiroshi Ueki
  • Patent number: 11127525
    Abstract: A composite magnetic material is provided that includes a resin and first magnetic particles provided inside the resin. Each of the first magnetic particles includes a first core comprising a metal magnetic material, and an insulating film that covers the first core. The first core has a substantially flat shape having a short axis and a long axis. A thickness of the insulating film in the long axis direction of the first core is smaller than a thickness of the insulating film in the short axis direction of the first core. In addition, a coil component is provided that includes the composite magnetic material in an element body of the coil component.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: September 21, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Mitsuru Odahara, Takuya Ishida
  • Patent number: 11120936
    Abstract: A magnetic component module includes a magnetic core group, a first winding, a second winding, and a third winding. The magnetic core group includes a first magnetic core, a second magnetic core disposed corresponding to the first magnetic core, and a third magnetic core disposed corresponding to the second magnetic core. The second magnetic core is placed between the first magnetic core and the third magnetic core. The first winding and the second winding are placed between the first magnetic core and the second magnetic core. The third winding is placed in the third magnetic core. The first magnetic core, the second magnetic core, the first winding, and the second winding together constitute a transformer. The third magnetic core and the third winding constitute an inductive component. Therefore, less components are used, manufacturing is simplified, and production costs are reduced.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: September 14, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Hsin-Wei Tsai, Hua-Sheng Lin, Ming-Cheng Lee
  • Patent number: 11114232
    Abstract: An inductor assembly includes a coil including a spirally wound metal foil.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: September 7, 2021
    Assignee: RAYCAP IP DEVELOPMENT LTD
    Inventors: Grigoris Kostakis, Megaklis Marathias, Fotis Xepapas, Kostas Bakatsias, George Peppas, Zafiris G. Politis
  • Patent number: 11114235
    Abstract: A magnetic coupling coil component includes: a main body including a first region, a second region disposed on a top side of the first region, and a third region disposed on a bottom side of the first region; a top-side coil conductor provided in the second region of the main body and wound around a coil axis extending in a top-bottom direction; and a bottom-side coil conductor provided in the third region of the main body and wound around the coil axis. The top-side coil conductor includes a plurality of top-side conductive patterns, and the plurality of top-side conductive patterns include a first top-side conductive pattern which is positioned closest to the first region among the plurality of top-side conductive patterns, and a number of turns of the first top-side conductive pattern is larger than an average of numbers of turns of the plurality of top-side conductive patterns.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: September 7, 2021
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takayuki Arai, Masanori Nagano, Akihisa Matsuda, Daisuke Yamaguchi, Naoya Terauchi