Patents Examined by Tuyen T. Nguyen
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Patent number: 11769625Abstract: A transformer apparatus reducing magnetic field interference includes an iron core, a first side coil unit, a second side coil unit, a first current transmission line, a second current transmission line and a third current transmission line. Both the first side coil unit and the second side coil unit are wound around the iron core. The first side coil unit is connected to the first current transmission line and the second current transmission line. The second current transmission line is connected to the third current transmission line. The first current transmission line includes a first current conduction segment and a first insulation layer. The first insulation layer coats the first current conduction segment. The third current transmission line includes a second current conduction segment and a second insulation layer. The second insulation layer coats the second current conduction segment. The second insulation layer touches the first insulation layer.Type: GrantFiled: December 8, 2020Date of Patent: September 26, 2023Assignee: P-DUKE TECHNOLOGY CO., LTD.Inventors: Lien-Hsing Chen, Cheng-Te Tsai, Sheng-Ken Huang
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Patent number: 11763979Abstract: A coil component 1 includes a base body 10 having a mounting surface 10b, a coil conductor 25 wound around a coil axis X through a plurality of layers in the base body 10, where the coil conductor 25 has a first end 25a and a second end 25b, external electrodes 21 and 22 provided on the mounting surface 10b, a lead-out conductor 26 connecting the first end 25a of the coil conductor 25 and the external electrode 21, and a lead-out conductor 27 connecting the second end 25b of the coil conductor 25 and the external electrode 22. At least a portion of the lead-out conductor 26 is positioned within a first region R1 inside the coil conductor 25 in a radial direction when seen in a direction of the coil axis X.Type: GrantFiled: June 25, 2020Date of Patent: September 19, 2023Assignee: TAIYO YUDEN CO., LTD.Inventors: Takayuki Arai, Naoya Terauchi, Tomoo Kashiwa
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Patent number: 11756717Abstract: A coil component includes: a laminate including a magnetic portion and an insulator, the insulator having a higher insulation quality than the magnetic portion; a first external electrode; a second external electrode; and a coil conductor provided in the laminate, wherein the coil conductor includes a plurality of conductor patterns each extending along a planar direction perpendicular to the coil axis, the plurality of conductor patterns being separated from each other in the direction of the coil axis, the plurality of conductor patterns include a first conductor pattern and a second conductor pattern, the first conductor pattern contacting with the first external electrode, the second conductor pattern contacting with the second external electrode, and in the planar direction, the insulator is provided between the first conductor pattern and the second external electrode and between the second conductor pattern and the first external electrode.Type: GrantFiled: April 23, 2020Date of Patent: September 12, 2023Assignee: TAIYO YUDEN CO., LTD.Inventor: Nobuyuki Miyasou
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Patent number: 11756985Abstract: An exemplary embodiment of the present invention provides a planar inductor including a substrate, a first magnetic layer, a conductive coil, and a second magnetic layer. The first magnetic layer can be disposed on at least a portion of the substrate. The conductive coil can be disposed on a first portion of the first magnetic layer. The second magnetic layer can be disposed on a second portion of the first magnetic layer and on at least a portion of the conductive coil.Type: GrantFiled: November 16, 2017Date of Patent: September 12, 2023Assignees: Georgia Tech Research Corporation, NITTO DENKO CORPORATIONInventors: Markondeya Raj Pulugurtha, Yoshihiro Furukawa, Himani Sharma, Keiji Takemura, Rao R. Tummala, Teng Sun
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Patent number: 11749452Abstract: A leakage transformer is provided. The leakage transformer includes a first plate, a second plate, a plurality of winding pillars, a primary winding, a secondary winding and a plurality of magnetic shunt elements. Each magnetic shunt element is disposed between the two corresponding winding pillars, and there is a gap between every two neighboring magnetic shunt elements. Alternatively, the magnetic shunt element is disposed on the first plate and aligned with the corresponding winding pillar, and there is a gap between the magnetic shunt element and the second plate. A leakage inductance of the leakage transformer is determined by the gap.Type: GrantFiled: March 10, 2020Date of Patent: September 5, 2023Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITEDInventors: Jakrapong Wongsasulux, Chaiwichit Suraprechakul
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Patent number: 11749439Abstract: A common mode choke coil includes: a magnetic core; and a pair of coils wound on a winding portion of the magnetic core, wherein the pair of coils include a first pole coil and a second pole coil which are each wound on the winding portion in a spiral shape by N turns, and wherein the first pole coil and the second pole coil are arranged on the winding portion so that one or more turns of the N turns are adjacent to each other, and each include a parallel running portion and a non-parallel running portion, the first pole coil and the second pole coil overlapping each other in the parallel running portion, and separating from each other in the non-parallel running portion in at least one turn of the adjacent first pole coil and second pole coil as viewed from the length direction of the winding portion.Type: GrantFiled: July 17, 2019Date of Patent: September 5, 2023Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Retsu Sugawara, Kazutoshi Awane, Yudai Yoneoka
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Patent number: 11749454Abstract: An apparatus comprises: first windings, second windings, a magnetic core, and multiple tap nodes. The first windings are primary windings of a multi-tapped autotransformer. The second windings are secondary windings of the multi-tapped autotransformer. The first windings and the second windings are wrapped around the magnetic core, the second windings disposed in a series connection between the first windings. The multiple tap nodes providing coupling of the first windings and the second windings to a power supply circuit such as a switched-capacitor converter.Type: GrantFiled: April 29, 2019Date of Patent: September 5, 2023Assignee: Infineon Technologies Austria AGInventors: Roberto Rizzolatti, Christian Rainer, Otto Wiedenbauer
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Patent number: 11742128Abstract: A transformer having a transformer core that forms a magnetic flux path between and through a top yoke, leg, and bottom yoke of the transformer core. A winding can be disposed about the leg. Further, a flitch plate, which can have at least one slot that is configured to reduce eddy losses generated by the winding, can be disposed adjacent to the leg and extend between the top yoke and the bottom yoke. The flitch plate can be clamped to the top and bottom yokes by top and bottom clamps, respectively. The top and bottom clamps can each include at least one cutout that reduces an attraction of stray flux from the winding and into the corresponding top and bottom clamps. Additionally, at least one of the top clamp and the bottom clamp can include an internal lattice structure.Type: GrantFiled: September 26, 2019Date of Patent: August 29, 2023Assignee: HITACHI ENERGY SWITZERLAND AGInventors: Ion C. Radu, George K. Frimpong
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Patent number: 11728084Abstract: An inductor includes a coil that is provided in a component body. A first end of the coil is connected to a first outer electrode, and a second end of the coil is connected to a second outer electrode. The coil includes a plurality of coil conductor layers that are provided in a width direction. Each coil conductor layer is substantially spirally formed with the number of turns being greater than or equal to about one turn. The height of the component body is greater than the width of the component body.Type: GrantFiled: December 12, 2022Date of Patent: August 15, 2023Assignee: Murata Manufacturing Co., Ltd.Inventors: Yasunari Nakashima, Hiromi Miyoshi
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Patent number: 11721471Abstract: An electric device, for example a track transformer, connects to a high-voltage line. The electric device has a magnetizable core, at least one winding which is arranged in the vicinity of the core, and a housing which is filled with an insulating fluid and in which at least one winding is arranged. The core is arranged at least partly outside of the housing. In order to allow a stable mounting of a core formed of two halves, the core is arranged completely between two opposing pressing plates, between which tension elements for clamping the core extend.Type: GrantFiled: January 4, 2019Date of Patent: August 8, 2023Assignee: Siemens Energy Global GmbH & Co. KGInventors: Stephan Voss, Joerg Froehner, Jonas Claus, Julian Kraus, Markus Baumann
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Patent number: 11721472Abstract: A coil component used for two-phase transformer coupling includes: a first coil and a second coil; and a magnetic core at which the first coil and the second coil are provided. The magnetic core includes: a first magnetic leg at which the first coil is provided; a second magnetic leg at which the second coil is provided; a central leg portion interposed between the first magnetic leg and the second magnetic leg; a pair of connection portions connecting the first magnetic leg, the central leg portion, and the second magnetic leg in parallel; a main gap interposed in the central leg portion; a first gap interposed in the first magnetic leg; and a second gap interposed in the second magnetic leg. A coupling coefficient between the first coil and the second coil is not less than 0.7.Type: GrantFiled: August 22, 2018Date of Patent: August 8, 2023Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Xiaoguang Zheng, Kazushi Kusawake, Masayoshi Hirota
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Patent number: 11715588Abstract: The present disclosure relates to an electrical insulator, for an inductive device filled with an electrically insulating cooling fluid. The insulator defines a plurality of internal channels for allowing the fluid to flow there through to improve circulation of the fluid within the inductive device.Type: GrantFiled: March 12, 2021Date of Patent: August 1, 2023Assignee: Hitachi Energy Switzerland AGInventors: Olof Hjortstam, Mark Czernuschka, Orlando Girlanda
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Patent number: 11706866Abstract: A ballast transformer and system using the ballast transformer to couple power to a plasma load. The ballast transformer has a magnetic core, a first primary winding on a primary side of the magnetic core, a secondary winding on a secondary side of the magnetic core, and a second primary winding connected in series with the first primary winding and wound in proximity to the secondary winding on the secondary side of the magnetic core. The first primary winding is connectable to the AC power source, and the secondary winding is connectable to the plasma load via a coaxial cable.Type: GrantFiled: May 12, 2021Date of Patent: July 18, 2023Assignee: Atmospheric Plasma Solutions, Inc.Inventors: Peter J. Yancey, Terrence E. Rogers
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Patent number: 11705266Abstract: In an embodiment a core component includes a base plate, a plurality of members arranged on corners of the base plate and delimiting an inner region of the core component and a center piece located in the inner region and having an oval basic shape.Type: GrantFiled: September 16, 2020Date of Patent: July 18, 2023Assignee: TDK ELECTRONICS AGInventor: Michael Rottner
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Patent number: 11699545Abstract: The first core includes a main body part extending in a first direction along a main surface of the substrate, a first foot part extending from the main body part to the second core through the substrate, and a second foot part extending from the main body part to the second core through the substrate at a position at which the coil conductor is sandwiched between itself and the first foot part in the first direction, and the insulating member includes a bottom wall part interposed between at least the first foot part and the second core, and a side wall part extending along at least either of the first foot part and the second foot part and interposed between either of the foot parts and the coil conductor.Type: GrantFiled: December 21, 2020Date of Patent: July 11, 2023Assignee: TDK CORPORATIONInventors: Ge Li, Junpei Sawayama
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Patent number: 11688536Abstract: The present invention relates to an inductor device, a method of manufacturing same and antenna. The proposed inductor device comprising a magnetic core (1), an electrically insulating support (10) with a cavity (11) arranged around said magnetic core (1), and three windings (DX, DY, DZ) of conductive wire arranged orthogonal to one another, wherein said electrically insulating support (10) is made of a single part and completely houses the magnetic core (1) which is accessible through an opening, the three windings (DX, DY, DZ) being supported on winding supporting faces (12X, 12Y and 12Z) of the electrically insulating support, confined between winding limiting edges (22) defined by lower corner protuberances (20) and centered with respect to the three orthogonal axes (X, Y, Z) such that said electrically insulating support (10) assures symmetry and orthogonality of said electromagnetic field vectors generated by the mentioned inductor device.Type: GrantFiled: February 6, 2018Date of Patent: June 27, 2023Inventors: Sergio Cobos Reyes, Antonio Rojas Cuevas, Claudio CaƱete Cabeza, Francisco Ezequiel Navarro Perez
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Patent number: 11688541Abstract: An integrated magnetic component comprises a common mode inductance and a differential mode inductance. The common mode inductance is formed by a common mode core surrounding a winding window and at least two windings wound around the common mode core and through the winding window. The differential mode inductance is formed by the at least two windings and a differential mode core being spaced from the common mode core by a gap. The differential mode core comprises at least one surface being adjacent to each of the at least two windings. Further, a filter for attenuating electromagnetic interference comprises an integrated magnetic component according to the invention. Even further, the integrated magnetic component according to the invention is used for attenuating electromagnetic interference, preferably in a vehicle, a data center, or a telecommunication unit. A method for manufacturing an integrated magnetic component according to the invention comprises two steps.Type: GrantFiled: January 7, 2020Date of Patent: June 27, 2023Assignee: DET International Holding LimitedInventors: Hugues Njiende, Sergey Tikhonov, Ralf Grieger
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Patent number: 11682515Abstract: An inductor has one or more wires and a multipart magnetic core. The multipart magnetic core has magnetic core parts that are adjacent and magnetically coupled. The inductor provides an inductance of at least 40 nH for currents greater than 1 A and less than 60 A, and at least 20 nH for currents of at least 60 A.Type: GrantFiled: April 15, 2020Date of Patent: June 20, 2023Assignee: Monolithic Power Systems, Inc.Inventors: Dawson Huang, Ting Ge
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Patent number: 11670450Abstract: A tapered ferrite core having a solid or hollow cylindrical shape with larger length than outer diameter, and comprising a ground taper portion in at least one end portion, the taper portion having ground streaks extending in the longitudinal direction of the ferrite core, can be formed by centerless-grinding a rotating ferrite core by a rotating grinder.Type: GrantFiled: June 5, 2018Date of Patent: June 6, 2023Assignee: PROTERIAL, LTD.Inventors: Akihiro Maeta, Katsumasa Yamasaki
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Patent number: 11657962Abstract: An inductor includes an air-core coil assembled with a T-shaped core and a composite magnetic material and resin mixture embedding the T-shaped core and the air-core coil. The air-core coil has: a coil member having a coil axis and first and second sides opposite to each other; and first and second leads that are integrally connected to the coil member. The first and second leads respectively have: first and second bent members at the first side; first and second ends at the second side; and first and second bottom extensions respectively connected between the first and second bent members and the first and second ends. The first and second bent members extend in a first direction parallel to the coil axis, the first and second ends extend in a second direction parallel to the coil axis, and the first and second bottom extensions extend perpendicular to the coil axis.Type: GrantFiled: September 24, 2021Date of Patent: May 23, 2023Inventors: Shinichi Sakamoto, Douglas James Malcolm