Patents Assigned to Sumida Corporation
  • Patent number: 10504642
    Abstract: A filter component assembly kit includes a bobbin that is configured with first and second members and a core that is in a quadrangular frame shape. When the first member is assembled with the second member, a through hole is formed in the bobbin. The through hole extends in a first direction. The core is configured with first and second extension bars. The first and second extension bars extend in parallel in the first direction. When the first extension bar is disposed in the through hole of the bobbin, rotation of the core around the first extension bar is prevented. First allowance of the first extension bar in a second direction, which is perpendicular to the first direction, in the through hole is larger than second allowance of the first extension bar in a third direction, which is perpendicular to the first and second directions, in the through hole.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: December 10, 2019
    Assignee: SUMIDA CORPORATION
    Inventors: Naoki Sasaki, Jiayu Chen
  • Patent number: 10483646
    Abstract: An antenna device includes a core, a terminal mounting unit, a coil, a plurality of elongated terminals, and an electronic component provided on the terminal mounting unit. The core is formed from a magnetic material. The terminal mounting unit is arranged adjacent to one side of the core. The coil, which is a wound conductive wire, is arranged on an outer circumference of the core. A sidewall of the terminal mounting unit includes a plurality of through holes into which the elongated terminals are inserted.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: November 19, 2019
    Assignee: SUMIDA CORPORATION
    Inventors: Kei Tanaka, Takanobu Rokuka, Hitoshi Moriya, Shigeru Mahara, Noriaki Iwasaki, Masakazu Fukuoka, Yoshinori Miura
  • Patent number: 10447281
    Abstract: A phase adjusting circuit is provided that can highly precisely adjust frequencies throughout the entire frequency range to be dealt with. A PLL circuit includes: a reference-signal input terminal from which a reference signal is input; a feedback-signal input terminal from which a feedback signal is input; and an output terminal from which an output signal based on a phase difference between the reference signal and the feedback signal is output. A filter circuit is connected to the reference-signal input terminal and the output terminal, and causes a phase of the reference signal to be delayed when the oscillation frequency of an inverter circuit including the PLL circuit falls in a high range. A delay circuit is connected to the output terminal, and causes the output signal to be delayed when the oscillation frequency of the inverter circuit falls in a low range lower than the high range.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: October 15, 2019
    Assignee: SUMIDA CORPORATION
    Inventor: Hiroyuki Miyazaki
  • Patent number: 10446313
    Abstract: An electronic component includes; a magnetic-body core having a plate-shaped portion and a core portion which extends from an upper surface of the plate-shaped portion; a winding wire which includes a wound portion wound by a rectangular wire into an Edgewise winding form and two non-wound portions extending from the wound portion to two distal ends, and the core portion is inserted through the wound portion; and a magnetic exterior body which covers at least the wound portion and the core portion. The two non-wound portions are respectively arranged along a bottom surface and at least one of the side surfaces of the plate-shaped portion. Parts of the two non-wound portions arranged along the bottom surface are electrodes.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: October 15, 2019
    Assignee: SUMIDA CORPORATION
    Inventors: Mitsugu Kawarai, Satoru Yamada, Kazuyuki Kikuchi, Tomohiro Kajiyama, Juichi Ooki, Motomi Takahashi, Tsutomu Otsuka
  • Patent number: 10438737
    Abstract: An electronic component includes a magnetic core member, a winding and a magnetic exterior body. The magnetic core member has a flat base and a core. The flat base has a top surface, a bottom surface, a first side surface and a second side surface opposite to the first side surface. The core is located on the top surface of the flat base. A winding has an edgewise coil and two non-wound flat wires that extend from the edgewise coil. A magnetic exterior body covers at least the core and the edgewise coil. The two non-wound flat wires continuously extend along the top surface, the first side surface, the bottom surface and the second side surface of the flat base in this order. The two non-wound flat wires located on the bottom surface work as electrodes.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: October 8, 2019
    Assignee: SUMIDA CORPORATION
    Inventors: Shinichi Sakamoto, Zhigang Cheng, Fernando Chan Mock, Mitsugu Kawarai
  • Patent number: 10431378
    Abstract: A method for manufacturing an electronic component is provided. The method includes placing a T-shaped core and an air-core coil in a mold, placing a mixture of a metal magnetic material and a thermosetting resin into the mold so as to embed the T-shaped core and the air-core coil in the mixture, applying pressure in a range of 0.1 to 20.0 kg/cm2 to the placed mixture so that a shape of the placed mixture conforms to the T-shaped core, 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: April 16, 2019
    Date of Patent: October 1, 2019
    Assignee: SUMIDA CORPORATION
    Inventors: Shinichi Sakamoto, Douglas James Malcolm
  • Patent number: 10424835
    Abstract: A door handle comprising: a housing mounted swingably with respect to a door of a vehicle; an antenna portion accommodated in the housing; an electrostatic-capacity sensor including an electrostatic-capacity detecting electrode, which is accommodated in the housing; and a conductive member which is formed between the electrostatic-capacity detecting electrode and the inner surface of the housing in a state of always being insulated with respect to the electrostatic-capacity detecting electrode.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: September 24, 2019
    Assignee: Sumida Corporation
    Inventor: Hozumi Ueda
  • Publication number: 20190287713
    Abstract: Provided is a coil component 100 including a first coil element 111 and a second coil element 112 each formed in an angular-tubular shape and disposed in parallel, and an interconnection part 113 for connecting the both coil elements 111, 112. The interconnection part 113 is configured with a first connecting part 123A, a second connecting part 123B, an intermediate part 123C, and an inverted part 123D. The first connecting part 123A is configured with a flatwise-bending portion 123A1 and an edgewise-winding portion 123A2. The second connecting part 123B is configured with a flatwise-bending portion 123B1 and an edgewise-winding portion 123B2. The intermediate part 123C is provided to extend over a gap part 115 between the second coil element 112 and the first coil element 111 on a front end-face side without being twisted.
    Type: Application
    Filed: February 6, 2019
    Publication date: September 19, 2019
    Applicant: SUMIDA CORPORATION
    Inventor: Hiroshi KAWASHIMA
  • Publication number: 20190272942
    Abstract: A coil component 100 includes a first coil element 111 and a second coil element 112 each formed in an angular-tubular shape and disposed in parallel by winding and laminating a single flat wire 101 in one direction with edgewise-winding between one end portion 101A and another end portion 101B and bending the wound and laminated coil into two, and includes an interconnection part 113 for connecting the both elements. The interconnection part 113 includes a coil element winding end portion side raised part 123A, a coil element winding start portion side raised part 123B, and an intermediate part 123C extended between the two raised parts 123A and 123B.
    Type: Application
    Filed: January 24, 2019
    Publication date: September 5, 2019
    Applicant: SUMIDA CORPORATION
    Inventor: Hiroshi KAWASHIMA
  • Publication number: 20190252841
    Abstract: A slit having a predetermined width and a predetermined length is formed in a longitudinal direction from a middle of a distal edge of a tip of a flat wire. Next, one of a left strip and a right strip is brought upward and the other is brought downward, and then the left strip and the right strip vertically separated are laterally brought close to each other. Finally, the left strip and the right strip are vertically pressed to abut against each other.
    Type: Application
    Filed: January 16, 2019
    Publication date: August 15, 2019
    Applicant: SUMIDA CORPORATION
    Inventors: Tomoaki ASARI, Tomoyuki KANEKO
  • Patent number: 10348129
    Abstract: An electric power supply system, to which the electric field coupling electric power transmission technology is applied, includes an electric power transmission electrode for transmitting electric power from an electric power source, an electric power reception electrode that is disposed so as to contactlessly face the electric power transmission electrode to form a junction capacitance, and receives the electric power transmitted from the electric power transmission electrode through the junction capacitance, and a plasma generation unit for generating a plasma in a space between the electric power transmission electrode and the electric power reception electrode in which the junction capacitance is formed.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: July 9, 2019
    Assignees: EXH CORPORATION, TOYO ALUMINIUM K.K., SUMIDA CORPORATION
    Inventor: Kenichi Harakawa
  • Patent number: 10312016
    Abstract: A circulating-current reducing circuit is provided that can suppress a circulating current with a simplified configuration having no control circuit. The circulating-current reducing circuit is connected to a transformer unit to reduce circulating current. The transformer unit includes: a first transformer device; a second transformer device that is connected to the first transformer device in parallel; and a switching element that controls timing of supply of current to a primary coil portion of the first transformer device and a primary coil portion of the second transformer device. The circulating-current reducing circuit includes a first circuit that is connected between the primary coil portion of the first transformer device and the switching element, and a second circuit that is connected between the primary coil portion of the second transformer device and the switching element.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: June 4, 2019
    Assignee: SUMIDA CORPORATION
    Inventor: Takeshi Hatakeyama
  • Patent number: 10312592
    Abstract: A manufacturing method of a coil component including the steps of: holding a plurality of semi-finished products, each of which includes a base and a coil before forming the coil component, with a jig having a holding portion; setting the plurality of semi-finished products held by the jig to the setting positions of the jig in a mold; and sealing at least a portion within the base and the coil with resin by filling the resin into a cavity of the mold.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: June 4, 2019
    Assignee: Sumida Corporation
    Inventors: Yasunori Morimoto, Yasuo Shimanuki, Keiji Oyagi, Masakazu Fukuoka
  • Patent number: 10304624
    Abstract: A method for manufacturing an electronic component for avoiding electromagnetic interference includes: (a) placing a T-shaped core and an air-core coil in a metal mold; (b) injecting a mixture of a composite magnetic material and a resin into the metal mold so that the T-shaped core and the air-core coil are embedded by the mixture; (c) heating the mixture at a first temperature; (d) adjusting an outer shape while removing excessive mixture; and (e) hardening the mixture. The method may further include a process of polishing an outside of the hardened mixture. The method may further include a process of applying a pressure of 0.1 to 20.0 kg/cm2 to the mixture for adjusting an outer shape of the mixture by a movable punch of a press machine before the hardening process.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: May 28, 2019
    Assignee: SUMIDA CORPORATION
    Inventors: Shinichi Sakamoto, Douglas James Malcolm
  • Patent number: 10305188
    Abstract: An antenna device includes: a plurality of cores arranged in series; a coil; and a capacitor connected to the coil, in which a first core, which is selected from the plurality of cores, and a second core, which is selected from the plurality of cores and is arranged on any one end portion side of the first core, are arranged apart from each other, and in which at least one end surface, which is selected from an end surface of the first core on a side on which the second core is arranged and an end surface of the second core on a side on which the first core is arranged, is located on an inner peripheral side of the coil.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: May 28, 2019
    Assignee: Sumida Corporation
    Inventors: Yoshinori Inoue, Isao Douchi, Kei Tanaka, Takanari Fujimaki, Yoshinori Miura, Hiroshi Kawasaki, Hiromitsu Kuriki, Takanobu Rokuka, Hiroyuki Miyazaki
  • Patent number: 10186774
    Abstract: An antenna device includes a core, a bobbin member having a partition, and a coil provided around the bobbin member. The coil is configured with a tight winding portion and a loose winding portion. The tight winding portion is provided between one bobbin side and the partition. The loose winding portion is provided between the other bobbin side and the partition. The loose winding portion is configured with a first winding layer and a second winding layer. A wire winding direction of the first winding layer is opposite to a wire winding direction of the second winding layer so that the wire of the first winding layer and the wire of the second winding layer cross and overlap to each other along part of the bobbin member.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: January 22, 2019
    Assignee: SUMIDA CORPORATION
    Inventors: Kei Tanaka, Shuichi Kikuchi, Takanobu Rokuka
  • Patent number: 10186764
    Abstract: An antenna device including: a core formed by a magnetic material; a terminal attachment unit which is arranged on one end side of the core and concurrently, which is provided with an opening portion of penetration-state; a coil which is arranged on the outer-peripheral side of the core and concurrently, which is formed by winding a conductive wire; and at least a pair of terminal members which are attached to the terminal attachment unit and concurrently, which are provided with a chip-support-piece portion positioned at the opening portion and concurrently electrically connected to an electronic component while being equipped with aforesaid electronic component having a chip-shape, wherein for the chip-support-piece portion, there is provided a positioner which carries out the positioning of the electronic component.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 22, 2019
    Assignee: SUMIDA CORPORATION
    Inventors: Shuichi Kikuchi, Kei Tanaka, Takanobu Rokuka, Shigeru Mahara, Noriaki Iwasaki, Yoshinori Miura, Hiroshi Kawasaki
  • Patent number: 10170233
    Abstract: A coil component includes a core formed by a magnetic material, a coil embedded in the core, a part of a terminal portion of the coil protruded from a side surface of the core, and a tabular terminal, a part thereof protruded from the side surface of the core and partly connected with the protruded part of the terminal portion of the coil. The protruded part of the terminal portion of the coil and the protruded part of the tabular terminal are respectively bent toward the bottom surface side of the core along the side surface of the core, and the protruded and bent part of the terminal portion of the coil is arranged between the protruded and bent part of the tabular terminal and the core.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: January 1, 2019
    Assignee: SUMIDA CORPORATION
    Inventors: Satoru Yamada, Yoshiyuki Hatayama
  • Patent number: 10153076
    Abstract: A coil component 1 such as a solenoid valve is provided with a wiring part 20 formed by winding a conducting wire 4 therearound, and terminal electrodes 3A, 3B having connection terminals 16A, 16B electrically connected to the conducting wire 4. A locking piece 15A is provided on the terminal electrode 3A on a side of a wiring part for the connection terminal 16A, a starting end part of the conducting wire 4 is locked to the locking piece 15A, and the conducting wire 4 is led up in a direction reverse to a direction in which the wiring part 20 is arranged at a predetermined position, is passed into the connection terminal 16A so as to be electrically connected to the connection terminal 16A, and further led up in the direction reverse to the direction in which the wiring part 20 is arranged at a predetermined position.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: December 11, 2018
    Assignee: SUMIDA CORPORATION
    Inventor: Ryuji Watanabe
  • Patent number: 10141649
    Abstract: An antenna device including: a core formed by magnetic material; a terminal attachment unit arranged on one end side of the core; a coil which is arranged on the outer circumferential side of the core and concurrently, which is formed by winding a conductive wire; a plurality of terminal members which are mounted on the terminal attachment unit and concurrently, each of which is electrically connected with a terminal of the conductive wire or an electronic component at any position thereof; a connector connecting unit provided with a connector hole into which an external connector is inserted; and a partition unit partitioning the terminal attachment unit and the connector connecting unit, wherein a terminal hole is provided at the partition unit, and at least two or more of the terminal members are plugged-in into the terminal hole and concurrently, are mounted in a state of protruding toward the connector hole.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: November 27, 2018
    Assignee: SUMIDA CORPORATION
    Inventors: Yoshinori Miura, Hiroshi Kawasaki, Takanobu Rokuka, Kei Tanaka, Shigeru Mahara, Noriaki Iwasaki, Shuichi Kikuchi