Patents Examined by Elvin G. Enad
  • Coil component having resin walls
    Patent number: 10998130
    Abstract: In a coil component and a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: May 4, 2021
    Assignee: TDK CORPORATION
    Inventors: Hitoshi Ohkubo, Masazumi Arata, Manabu Ohta, Shou Kawadahara, Yoshihiro Maeda, Takahiro Kawahara, Hokuto Eda, Shigeki Sato
  • Capacitively balanced inductive charging coil
    Patent number: 10998121
    Abstract: An inductor coil includes a wire which is wound in alternating layers such that the surface area of the wire in each winding viewed from above or below the coil is substantially equal in each half of the coil defined by a line bisecting the center point in each layer. The layers are also wound in a serpentine fashion to balance the capacitance between layers. The substantially equal surface area of wire in each half of a coil layer and in adjacent coil layers results in a balanced capacitance of the coil which, in turn, results in reduced common mode noise.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: May 4, 2021
    Assignee: Apple Inc.
    Inventors: Yehonatan Perez, Makiko K. Brzezinski, Karl Ruben F. Larsson, Christopher S. Graham
  • Electronic device
    Patent number: 10984943
    Abstract: An electronic device includes a component body and a terminal electrode formed on a mounting surface of the component body. The chamfered part is formed at an intersection between the mounting surface and a side surface of the component body. An edge of the terminal electrode becomes thinner toward the chamfered part.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: April 20, 2021
    Assignee: TDK CORPORATION
    Inventor: Takashi Kudo
  • Inductor element
    Patent number: 10984941
    Abstract: An inductor element includes a wire-winding portion and a core portion. In the wire-winding portion, a conductor is wound in a coil shape. The core portion surrounds the wire-winding portion and contains a magnetic powder and a resin. An inner-core central region is a region of the core portion within a distance from a winding axis center of the wire-winding portion toward an existing region of the wire-winding portion in an outward direction perpendicular to the winding axis center. A top-plate central region is a region of the core portion within a distance from the winding axis center toward a no-existing region of the wire-winding portion in the outward direction. S??S???2% is satisfied, where S? (%) and S? (%) are respectively an area ratio of the magnetic powder in the inner-core central region and the top-plate central region.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: April 20, 2021
    Assignee: TDK CORPORATION
    Inventors: Yasuhide Yamashita, Katsushi Yasuhara, Chiomi Sato, Syota Goto
  • Power circuit, iron core for Scott connected transformer, Scott connected transformer, and superheated steam generator
    Patent number: 10978243
    Abstract: The present invention allows individual control of an output voltage of a main transformer and an output voltage of a teaser transformer while utilizing output characteristics of the respective transformer when a Scott connected transformer has control equipment arranged on the input side thereof, including first control equipment arranged in one of two phases of the main transformer on the input side in order to control a voltage or a current and second control equipment arranged in one end of a primary coil of the teaser transformer on the input side in order to control a voltage or a current, the control equipment controlling an output voltage of the main transformer and an output voltage of the teaser transformer individually.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: April 13, 2021
    Assignee: TOKUDEN CO., LTD.
    Inventors: Toru Tonomura, Sachio Tamaki, Yasuhiro Fujimoto
  • Common mode filter
    Patent number: 10943726
    Abstract: Disclosed herein is a common mode filter that includes a winding core part including first to third winding areas and first and second wires wound in a same direction around the winding core part and crossing each other in the third winding area. The first wire is aligned and wound in the first and second winding areas, and the second wire is aligned and wound on the first wire in the first and second winding areas, whereby a plurality of winding blocks are formed. The winding blocks include a first winding block positioned in the first winding area and second and third winding blocks positioned in the second winding area. The second wire constituting the second winding block and the second wire constituting the third winding block are separated from each other.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: March 9, 2021
    Assignee: TDK CORPORATION
    Inventors: Yuma Komaya, Miki Kusakabe, Tomokazu Tsuchiya
  • Unified conductor to lower the resistance between a planar transformer and one or more inductors
    Patent number: 10939543
    Abstract: An apparatus is provided including a transformer including a first printed circuit board having one or more conducting layers, the one or more conducting layers forming, at least in part, a transformer coil; at least one inductor; and at least one continuous piece of conducting material external to the printed circuit board, where the at least one continuous piece of conducting material forms a connection between the transformer and the at least one inductor. A method is also provided for assembling a switched-mode power supply.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: March 2, 2021
    Assignee: International Business Machines Corporation
    Inventors: Paul W Coteus, Andrew Ferencz, Todd Takken, Yuan Yao, Xin Zhang
  • Common mode noise filter
    Patent number: 10937584
    Abstract: A common mode noise filter includes a non-magnetic body and first to third coil conductors provided inside the non-magnetic body. The second coil conductor is provided in a downward direction from the first coil conductor. The third coil conductor is provided in the downward direction from the second coil conductor. The first and third coil conductors deviate in a direction perpendicular to the downward direction with respect to the second coil conductor. At least one of the first and third coil conductors overlaps the second coil conductor viewing from the direction perpendicular to the downward direction. This common mode noise filter allows these coil conductors to be magnetically coupled to each other with a preferable balance, thereby preventing degradation of differential signals.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: March 2, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takuji Kawashima, Yoshiharu Oomori, Yoichi Nagaso, Atsushi Shinkai
  • Hybrid inductor and manufacturing method thereof
    Patent number: 10937581
    Abstract: A hybrid inductor includes an inductor body having a core part in which a coil part is disposed, and first and second cover parts having the core part interposed therebetween. The core part includes magnetic metal layers, and the first and second cover parts include ferrite layers.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: March 2, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ho Yoon Kim, Yu Jin Choi, Soo Hwan Son, Min Kyoung Cheon
  • Laminated electronic component
    Patent number: 10937583
    Abstract: A laminated electronic component having a coil formed in the laminated body of pluralities of laminated magnetic material layers and conductor patterns by electrically connecting the conductor patterns adjacent to each other via the magnetic material layers. The magnetic material layers contain a metal magnetic material. The coil has a first end portion close to a bottom surface of the laminated body and a second end portion distant from the bottom surface of the laminated body. The first end portion is electrically connected to a first external terminal disposed on the bottom surface of the laminated body. The second end portion is electrically connected to a second external terminal disposed on the bottom surface of the laminated body via an electrode disposed on a side surface of the laminated body. The electrode is covered with an insulator film.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: March 2, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yutaka Noguchi, Takeshi Kobayashi, Makoto Yamamoto
  • Magnetic structures for low leakage inductance and very high efficiency
    Patent number: 10937590
    Abstract: A magnetic configuration utilizing a plurality of posts and spiting the primary winding on each of the posts defining a core and placing the secondary windings together with the rectifier means around each post to minimise the stray and leakage inductance. A significant reduction of the core material and a reduction of the footprint is achieved due to better utilization of the winding material. The magnetic field is weaving from and through one post to the other to minimize the vertical component of ther field and forcing the magnetic field to be parallel with the winding to reduce the AC losses in copper of the winding. These properties allow the magnetic structure to be suitable in very high frequency applications and even in application with an air core. These magnetic structures can be used for implementing a transformer and for inductive applications.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: March 2, 2021
    Assignee: Rompower Technology Holdings, LLC
    Inventor: Ionel Jitaru
  • Power electronics device with improved isolation performance
    Patent number: 10930422
    Abstract: A power electronics device includes one or more electrical windings included in an insulating substrate. A cavity and a channel connected to the cavity are also included in the insulating substrate, and a magnetic core is located in the cavity. The device also includes primary and secondary side electrical components located on first and second regions of a principal surface of the insulating substrate. An isolation region is located on the principal surface of the insulating substrate between the first and second regions, and the channel extends from the cavity to a first channel opening at an outside edge of the insulating substrate such that, when viewed along a thickness direction of the insulating substrate, the isolation region completely overlaps the first channel.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: February 23, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Lee Francis
  • Coil component
    Patent number: 10923265
    Abstract: A coil component includes: a body portion; and a coil portion disposed in the body portion, wherein the coil portion includes a support member and a first coil layer disposed on a first surface of the support member, the first coil layer including a first electrode portion led out to a first end surface of the body portion, the support member includes first and second insulators and a metal core disposed between the first and second insulators, and a first end portion of the metal core is led out to the first end surface of the body portion to which the first electrode portion of the first coil layer is led.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: February 16, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Sang Seob Kim
  • Coil electronic component
    Patent number: 10923276
    Abstract: A coil electronic component includes a body having a coil portion embedded therein and having a form in which magnetic particles are dispersed in a first insulating material, a first atomic layer deposition (ALD) layer formed along a surface of the coil portion using a second insulating material, a second ALD layer formed along a surface of the first ALD layer using a third insulating material, and external electrodes connected to the coil portion.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: February 16, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young Il Lee, Han Wool Ryu, Sang Kyun Kwon
  • Reactor and reactor manufacturing method
    Patent number: 10916365
    Abstract: Provided is a reactor including: a coil having winding portions formed by winding a wire; a magnetic core that forms a closed magnetic circuit with inner core portions arranged inside of the winding portions and outer core portions arranged outside of the winding portions; end surface interposed members that are interposed between axial direction end surfaces of the winding portions and the outer core portions; and an inner resin portion that fills spaces between inner circumferential surfaces of the winding portions and outer circumferential surfaces of the inner core portions, the end surface interposed members including turn storage portions that store at least a portion of turns of the axial direction end portions of the winding portions.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: February 9, 2021
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Seiji Shitama, Masayuki Kato, Takashi Misaki, Tatsuo Hirabayashi, Shinichiro Yamamoto, Akinori Ooishi
  • Air core coupled inductors and associated systems and methods
    Patent number: 10910142
    Abstract: A switching power converter includes a first and second switching device, an air core coupled inductor, and a controller. The air core coupled inductor includes a first winding electrically coupled to the first switching device and a second winding electrically coupled to the second switching device. The first and second windings are magnetically coupled. The controller is operable to cause the first and second switching devices to repeatedly switch between their conductive and non-conductive states at a frequency of at least 100 kilohertz to cause current through the first and second windings to repeatedly cycle, thereby providing power to an output port. The switching power converter may have a topology including, but not limited to, a buck converter topology, a boost converter topology, and a buck-boost converter topology.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: February 2, 2021
    Assignee: VOLTERRA SEMICONDUCTOR LLC
    Inventor: Alexandr Ikriannikov
  • Reconfigurable coupled inductor
    Patent number: 10910150
    Abstract: A reconfigurable coupled inductor is disclosed. In one embodiment, the reconfigurable coupled inductor comprises metal rings and switches coupled to the metal rings to control at least one inductor property (e.g., coupling coefficient) based on a closed (e.g., on) or open state (e.g., off) of each switch.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: February 2, 2021
    Assignee: Intel Corporation
    Inventors: Sergio Augusto Clavijo, Donghwi Kim, Tae Kim
  • Chip electronic component
    Patent number: 10910145
    Abstract: There is provided a chip electronic component including: a magnetic body in which an internal coil part is embedded, wherein the internal coil part includes: a first coil pattern part; and a second coil pattern part formed on the first coil pattern part, when a minimum interval between adjacent coil pattern portions in the first coil pattern part is defined as a, and a maximum thickness of each coil pattern portion in the first coil pattern part is defined as b, a?15 ?m and b/a?7 are satisfied.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: February 2, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Dong Jin Jeong
  • Self-clamping structure for solving short-circuit resistance problem of amorphous alloy transformers
    Patent number: 10902996
    Abstract: A self-clamping structure for solving a short-circuit resistance problem of amorphous alloy transformers comprises an A-phase coil, a B-phase coil and a C-phase coil which are horizontally arranged, the A-phase coil being in close contact with the B-phase coil, and the B-phase coil being in close contact with the C-phase coil. By using a solidified low-voltage coil as a fastening splint and binding with a high-strength binding strap, the low-voltage coils of the A-phase and the B-phase clamp and fix a weak portion between the A and B phases; and the low-voltage coil of the B-phase and the C-phase clamp and fix a weak portion between the B and C phases. Outer sides of the A- and C-phase coils are each provided with a high-strength insulation splint, so that the splint and the low-voltage coil of corresponding phase constitute the splint pair to clamp and fix the corresponding weak portion.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: January 26, 2021
    Assignee: JIANGSU HUAPENG TRANSFORMER CO., LTD.
    Inventors: Guowei Zhou, Yuanben Huang, Guojun Peng, Wenjun Zhao
  • Circuit board assemblies having magnetic components
    Patent number: 10892085
    Abstract: According to some aspects of the present disclosure, circuit board assemblies and methods of circuit board assembly are disclosed. Example circuit board assemblies include a circuit board and a magnetic component coupled to the circuit board. The magnetic component includes a primary winding and a secondary winding. The assembly also includes a winding interconnect terminal electrically coupled to the magnetic component. The winding interconnect terminal is disposed on the circuit board remote from the magnetic component, and the circuit board defines an air gap between the winding interconnect terminal and the magnetic component to provide electrical isolation between the winding interconnect terminal and the magnetic component. Corresponding methods of assembling circuit boards and magnetic components are also disclosed.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 12, 2021
    Assignee: Astec International Limited
    Inventor: Kwong Kei Chin