Patents Examined by Elvin G. Enad
  • Patent number: 11222747
    Abstract: A connection section of a terminal electrode includes a reference surface, and an end portion of a wire and the connection section of the terminal electrode are connected to each other via a weld lump rising from the reference surface. A cover section to regulate an upper limit of the rise of the wire from the reference surface is provided in the terminal electrode. The cover section is so positioned as to cover at least part of the wire when viewed in a direction perpendicular to a direction in which the reference surface extends.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: January 11, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akio Igarashi, Koji Onishi
  • Patent number: 11217388
    Abstract: A multilayer inductor manufacturing method includes stacking a first coil conductor layer on a first magnetic layer; stacking a first burn-away material on side surfaces of the first coil conductor layer; stacking a second magnetic layer on the first burn-away material and first magnetic layer; stacking a second burn-away material on the second magnetic layer laterally outside an upper surface of the first coil conductor layer; stacking a second coil conductor layer on the upper surface of the first coil conductor layer and second burn-away material; stacking a third burn-away material on side surfaces and an upper surface of the second coil conductor layer; stacking a third magnetic layer on side surfaces of the third burn-away material and the second magnetic layer; stacking a fourth magnetic layer on the third burn-away material and the third magnetic layer; and burning away the first, second, and third burn-away materials via firing.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: January 4, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yasuhiro Itani, Hiroki Hashimoto, Masayuki Oishi
  • Patent number: 11211194
    Abstract: A coil electronic component includes a body having a coil portion embedded therein, and external electrodes connected to the coil portion, wherein the body includes a plurality of magnetic portions having a form in which magnetic particles are dispersed in an insulator and one or more insulating portions disposed between the plurality of magnetic portions.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: December 28, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sang Kyun Kwon, Han Wool Ryu, Young Il Lee
  • Patent number: 11211192
    Abstract: A laminated coil component includes an element body, a coil, and a pair of conductors. The pair of conductors is disposed on the element body. Each of the pair of conductors has an L shape when viewed from the third direction. Each of the pair of conductors includes a first conductor portion and a second conductor portion. The first conductor portion is disposed on one of first side faces. The second conductor portion is disposed on a pair of end faces. The coil includes a first coil portion and a second coil portion. The first coil portion includes a first straight portion and a pair of second straight portions. The pair of second straight portions is connected to both ends of the first straight portion. The second coil portion is curved as a whole.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: December 28, 2021
    Assignee: TDK CORPORATION
    Inventors: Hajime Kato, Yuto Shiga, Kazuya Tobita, Youichi Kazuta, Yuya Ishima, Satoru Okamoto, Shunji Aoki
  • Patent number: 11211188
    Abstract: In a stepwise structure formed in a multilayer coil component, a difference occurs in a shrinkage amount between a maximum film thickness portion in which the number of layers is large and a minimum film thickness portion in which the number of layers is small due to portions different in the number of layers of coil parts (that is, upper coil part, lower coil part, and connecting part) adjacent to each other like the maximum film thickness portion and the minimum film thickness portion, readily causing a crack by an inner stress due to the difference in the shrinkage amount. In a multilayer coil component according to the present disclosure, a stress relaxation part overlapping with a maximum film thickness portion whose shrinkage amount is large is provided to relax inner stress in a stepwise structure, resulting in prevention of a crack.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: December 28, 2021
    Assignee: TDK CORPORATION
    Inventors: Yusuke Nagai, Takashi Suzuki, Hidekazu Sato, Takashi Endo, Kouichi Kakuda, Kunihiko Kawasaki, Shinichi Kondo, Yuya Ishima, Shinichi Sato, Masaki Takahashi
  • Patent number: 11195650
    Abstract: A box-shaped inner case (3) is accommodated in a box-shaped outer case (2), and refrigerant flow passages (27) are formed at five surfaces except an opening surface (24) by gaps between the inner and outer cases. A Gap of an opening edge of the outer case (2) and an opening edge of the inner case (3) is covered with a frame-shaped cover (6). A coil (4) is placed in the inner case (3), and the inner case (3) is filled with magnetic powder mixture resin so that the coil (4) except the terminals (4a, 4b) is embedded. A core (5) is made of the magnetic powder mixture resin. Cooling water flows along a longitudinal direction of the outer case (2) with one of refrigerant pipe connecters (15) being a refrigerant inlet and the other of the refrigerant pipe connecters (15) being a refrigerant outlet.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: December 7, 2021
    Assignee: MEIDENSHA CORPORATION
    Inventors: Yuka Yamamoto, Keiichi Kodachi, Kuan Chung Tey
  • Patent number: 11189415
    Abstract: A magnetic element includes a magnetic core and a winding. The magnetic core includes a first and second magnetic cover disposed oppositely, and at least one first magnetic column, at least one second magnetic column and at least one common magnetic column disposed between the first and second magnetic covers. The winding includes at least one first winding wound around at least one first magnetic column, and at least one second winding wound around at least one said second magnetic column. A first differential mode inductor is formed with the first winding, the first magnetic column, the first magnetic cover, the common magnetic column and the second magnetic cover. A power inductor or a power transformer is formed with the second winding, the second magnetic column, the first magnetic cover, the common magnetic column and the second magnetic cover.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: November 30, 2021
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Zengyi Lu, Haijun Yang, Shaohua Zhu
  • Patent number: 11189418
    Abstract: Disclosed herein is a coil component that includes first and second coil parts each spirally wound in a plurality of turns in directions opposite to each other. An innermost turn of the first coil part is radially divided into first and second conductor parts by a spiral slit, and at least an innermost turn of the second coil part is radially divided into third and fourth conductor parts by a spiral slit. The first conductor part is positioned radially inward of the second conductor part, and the third conductor part is positioned radially inward of the fourth conductor part. The inner peripheral end of the first conductor part is connected to the inner peripheral end of the fourth conductor part, and the inner peripheral end of the second conductor part is connected to the inner peripheral end of the third conductor part.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: November 30, 2021
    Assignee: TDK CORPORATION
    Inventors: Toshifumi Komachi, Kosuke Kunitsuka, Toshio Tomonari
  • Patent number: 11152146
    Abstract: The proposed annular magnetic power unit includes an annular magnetic core comprising a first partial magnetic core and a second partial magnetic core, overlapped and facing to each other, the first and second partial magnetic cores being divided by two parallel air-gaps in a first and second central magnetic core portion, a first and second left side core portion and in a first and second right side core portion; the annular power unit also including at least one electro-conductive inner coil included within an annular groove of the annular magnetic core; and left and right independent electro-conductive outer coils wound around the first and second left side core portions and the first and second right side core portions respectively.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: October 19, 2021
    Inventors: Claudio Canete Cabeza, Raquel Rodriguez, Marina Arcos Moreno, Francisco Ezequiel Navarro Perez, Hector Perdomo Diaz, Juan Manuel Codes Troyano
  • Patent number: 11139096
    Abstract: A common mode choke coil comprising a core; a first wire and a second wire wound around the core; a first electrode part and a second electrode part disposed on the core and connected to the first wire; and a third electrode part and a fourth electrode part disposed on the core and connected to the second wire. The common mode choke coil has a self-resonance frequency of 700 MHz or more, and a common mode inductance of 300 nH or less, in a frequency band of 1 MHz or less.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: October 5, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Makoto Kitamura
  • Patent number: 11139101
    Abstract: A coil component includes an insulating layer in which a magnetic core is embedded, coil electrodes wound around the magnetic core, external connection pad electrodes that are provided on the upper surface of the insulating layer and are connected to the coil electrodes. Each of the coil electrodes includes a plurality of inner metal pins standing in the insulating layer, a plurality of outer metal pins standing in the insulating layer, a plurality of upper wiring patterns formed on the upper surface of the insulating layer, and a plurality of lower wiring pattern formed on the undersurface of the insulating layer. Each of the pad electrodes is directly connected to the upper end surface of the inner metal pin or the outer metal pin, and has, in plan view, an area larger than that of the single upper wiring pattern or the single lower wiring pattern.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: October 5, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Norio Sakai
  • Patent number: 11133130
    Abstract: Disclosed herein is a pulse transformer that includes: a drum core including a winding core part and first and second flange parts provided at both ends of the winding core part in an axial direction; a plurality of wires wound around the winding core part; and a plate-like core fixed to the drum core so as to face a first surface of the first flange part that is parallel to the axial direction and a second surface of the second flange part that is parallel to the axial direction. A value of S1/S2 is 0.19 or more and 0.47 or less, where an area of the cross section of the winding core part that is perpendicular to the axial direction is S1 and a facing area between the plate-like core and the first or second surface is S2.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: September 28, 2021
    Assignee: TDK CORPORATION
    Inventors: Keisuke Kawahara, Tasuku Mikogami, Setu Tsuchida, Toshio Tomonari
  • Patent number: 11127383
    Abstract: A musical notation system is disclosed. The musical notation system comprises: a pitch symbol representing a key of a keyboard instrument, wherein the pitch symbol corresponds to a number representing a pitch in a numbered musical notation system, and is displayed in a first form when representing a white key of the keyboard instrument and in a second form when representing a black key of the keyboard instrument; and a duration symbol representing a duration of the pitch symbol, the duration symbol corresponding to a symbol representing a duration in the numbered musical notation system, wherein the pitch symbol representing the black key of the keyboard instrument is assigned a sol-fa name independent of a sol-fa name of the pitch symbol representing the white key of the keyboard instrument.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: September 21, 2021
    Inventor: Jianxun Zhou
  • Patent number: 11120938
    Abstract: A current transformer apparatus is configured to enable it to be electrically connected with and physically mounted to a circuit board. The current transformer apparatus includes a support upon which a coil is situated and upon which a plurality of approximately U-shaped electrical connectors are also situated. The electrical connectors each include an electrical contact that is biased toward a reaction structure. A circuit board is received between the electrical contact and the reaction structure, and the bias between the electrical contact and the reaction structure mounts current transformer apparatus to the circuit board and provides an electrical connection therebetween.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: September 14, 2021
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Laura Teresa Portuondo Bautista, Glennys Johanny Jesús Reyes
  • Patent number: 11107617
    Abstract: The present invention is to improve a performance of a transformer having wound iron cores.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: August 31, 2021
    Assignee: HITACHI, LTD.
    Inventors: Yu Yamada, Takashi Ishigami, Akira Nishimizu, Kouji Sasaki
  • Patent number: 11094450
    Abstract: A core component is disclosed. In an embodiment, the core component includes at least one edge that has a transition, wherein the transition is asymmetrical.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: August 17, 2021
    Assignee: EPCOS AG
    Inventors: Anneliese Drespling, Dirk Beckmann
  • Patent number: 11094449
    Abstract: For isolation barrier with magnetics, an apparatus includes an isolation laminate including a dielectric core having a first surface and a second surface opposed to the first surface; at least one conductive layer configured as a first transformer coil overlying the first surface; a first dielectric layer surrounding the at least one conductive layer; a first magnetic layer overlying the at least one conductive layer; at least one additional conductive layer configured as a second transformer coil overlying the second surface; a second dielectric layer surrounding the at least one additional conductive layer; and a second magnetic layer overlying the at least one additional conductive layer. Methods for forming the isolation barriers and additional apparatus arrangements are also described.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: August 17, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Roberto Giampiero Massolini, Vijaylaxmi Khanolkar, Joyce Mullenix, Rais Miftakhutdinov
  • Patent number: 11075032
    Abstract: A power transformer includes at least two first windings, at least two second windings interleaved with the at least two first windings, and a magnetic core. The at least two first windings and the at least two second windings are positioned adjacent the magnetic core. Each first winding includes a wire and a plurality of turns. One or more windings of the at least two first windings include a bonding material and at least two adjacent turns of said plurality of turns adhered to each other via the bonding material. Other example power transformers, methods of manufacturing power transformers, and methods of manufacturing windings are also disclosed.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: July 27, 2021
    Assignee: Astec International Limited
    Inventors: Wo Oi Cheng, Alfredo Belmonte Grueso, Chi Wai Kevin Wong
  • Patent number: 11069476
    Abstract: A self-contained radio-frequency device featuring multiple overlapping coupled coil inductors in a planar configuration with overlaps selected for desired coupling between different pairs of coils, wherein the electromagnetic energy of the coils arises substantially only from the coils themselves and affects only the coils themselves. Overlapping configurations provide a compact space-saving form-factor for such a device a variety of applications, including filters, baluns, transformers, matching networks, amplifier stages, distributed amplifiers, and frequency multipliers. Space-saving is achieved by overlapping the coils while controlling the mutual inductance. The planar arrangements are applicable to a variety of technologies, such as integrated circuits (IC, ASIC, RFIC), ceramic multilayer technologies such as low temperature co-fired ceramics (LTCC), and to printed circuit boards (PCB).
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: July 20, 2021
    Assignee: VAYYAR IMAGING LTD.
    Inventors: Naftali Chayat, Reut Wizenberg, Nadav Mazor
  • Patent number: 11062838
    Abstract: A terminal electrode has a flat surface to which an end portion of a wire is connected, a low surface lower in a thickness direction of the terminal electrode than the flat surface, and a shift surface connects the flat surface and the low surface and increases a height in the thickness direction from the low surface to the flat surface. The wire has a first portion, a second portion and a third portion opposing the flat surface, the shift surface and the low surface, respectively. The first portion has a flattened cross-sectional shape, and the second portion has a semi-flattened cross-sectional shape.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: July 13, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akio Igarashi, Kentaro Yamaguchi