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公开(公告)号：US09673506B2
公开(公告)日：2017-06-06
申请号：US14713246
申请日：2015-05-15
Applicant: TDK CORPORATION
Inventor： Hirohumi Asou , Kosuke Kunitsuka , Toshifumi Komachi , Toshio Tomonari
IPC: H01Q7/08 , H01Q1/22 , H01Q7/00 , H01Q7/04 , H01F5/00 , H01F27/36 , H01Q5/00 , H01Q1/48 , H01Q1/24 , H01Q1/38 , H01F38/14
CPC classification number: H01Q1/2225 , H01F5/003 , H01F27/365 , H01F38/14 , H01Q1/243 , H01Q1/38 , H01Q1/48 , H01Q5/00 , H01Q7/00 , H01Q7/04 , H01Q7/08 , Y10T29/49018
Abstract: Disclosed herein is an antenna device that includes an antenna coil having a planar coil pattern, a magnetic sheet that covers one main surface of the antenna coil, and a resin layer provided on the other main surface of the antenna coil and along the coil pattern. The resin layer is substantially the same planar shape as the planar coil pattern.
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公开(公告)号：US10374276B2
公开(公告)日：2019-08-06
申请号：US15615049
申请日：2017-06-06
Applicant: TDK Corporation
Inventor： Toshio Tomonari , Hirohumi Asou , Kosuke Kunitsuka
IPC: H01P3/06 , H01P11/00 , H01B11/18 , H01F27/29 , H01G11/36 , H01G11/48 , H01F5/00 , H01F5/06 , H01F27/28 , H01B1/02 , H01F27/00 , H01F30/00 , H01B3/18
Abstract: Disclosed herein is a wire that includes: a core wire made of a conductor; an insulating film covering an outer periphery of the core wire; a catalyst adsorption film covering an outer periphery of the insulating film, the catalyst adsorption film including a catalyst serving as a reaction start point of electroless plating; and an outer periphery conductor covering an outer periphery of the catalyst adsorption film.
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公开(公告)号：US20180175494A1
公开(公告)日：2018-06-21
申请号：US15840192
申请日：2017-12-13
Applicant: TDK Corporation
Inventor： Yuhei Horikawa , Makoto Orikasa , Yoshihiro Kanbayashi , Hisayuki Abe , Hirohumi Asou , Kosuke Kunitsuka
CPC classification number: H01Q1/38 , H01Q1/2208 , H01Q1/2225 , H01Q7/00 , H04B5/0031 , H04B5/0081
Abstract: Disclosed herein is a wiring component that includes a base material and a planar coil pattern formed on the base material. The planar coil pattern includes a coil wiring portion having one end, other end, and first to third connecting positions, the second connecting position being closer to the other end compared with the first connecting position, the third connecting position being closer to the one end compared with the second connecting position; a power-feed wiring portion connected to the first connecting position; and a connection wiring portion that short-circuits the second connecting position and the third connecting position. A cross-section structure of the planar coil pattern has a base resin layer formed on the base material, and a conductive layer formed on the base resin layer.
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公开(公告)号：US12040116B2
公开(公告)日：2024-07-16
申请号：US17342051
申请日：2021-06-08
Applicant: TDK Corporation
Inventor： Kosuke Kunitsuka , Keigo Higashida , Emi Ito
CPC classification number: H01F17/045 , H01F27/2828 , H01F27/292 , H01F27/306 , H01F2017/0093
Abstract: Disclosed herein is a common mode filter that includes a core having a winding core part and first and second wires wound in a same direction around the winding core part. The first and second wires have a first crossing portion at which first turns thereof counted from one ends thereof cross each other and a second crossing portion at which first turns thereof counted from the other ends thereof cross each other. The first and second wires are wound by layer winding in an aligned state with one of the first and second wires positioned in a lower layer and other one thereof positioned in an upper layer in at least parts of the first and second wires between second turns thereof counted from the one ends thereof and second turns thereof counted from the other ends thereof.
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公开(公告)号：US10354796B2
公开(公告)日：2019-07-16
申请号：US15840243
申请日：2017-12-13
Applicant: TDK Corporation
Inventor： Yuhei Horikawa , Makoto Orikasa , Yoshihiro Kanbayashi , Hisayuki Abe , Hirohumi Asou , Kosuke Kunitsuka
IPC: H01F41/04 , H01F41/10 , C25D13/22 , C23C18/16 , C25D13/12 , G06K19/077 , H01Q1/38 , H01Q1/36 , H01Q9/27 , H05K3/24 , H05K3/18 , C25D5/48 , H01Q1/48 , H01Q7/00
Abstract: Disclosed herein is a method for manufacturing a planar coil, the method including forming a base conductive layer on a base material, the base conductive layer including: a coil wiring portion having one end, other end, and first to third connecting positions, the second connecting position being closer to the other end compared with the first connecting position, the third connecting position being closer to the one end compared with the second connecting position; a power-feed wiring portion that connects the first connecting position with an external power source; and a connection wiring portion that short-circuits the second connecting position and the third connecting position; forming a wiring conductive layer on the base conductive layer by electrolytic plating by feeding power from the external power source; and removing the power-feed wiring portion and the connection wiring portion.
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Patent Agency Ranking
公开(公告)号：US09793608B2
公开(公告)日：2017-10-17
申请号：US14555159
申请日：2014-11-26
Applicant: TDK CORPORATION
Inventor： Tomokazu Ishikura , Shin Takane , Norizumi Asano , Kosuke Kunitsuka
IPC: H01Q7/06 , H01Q7/08 , C02F1/46 , H01Q1/22 , H01F1/34 , G06K19/077 , C04B35/26 , C04B35/638
CPC classification number: H01Q7/06 , C04B35/26 , C04B35/638 , C04B2235/3232 , C04B2235/3277 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/6562 , C04B2235/72 , G06K19/07771 , H01F1/344 , H01Q1/2225
Abstract: An object is to provide a ferrite composition suitable for an antenna element with a long communication distance in a high-frequency band (for example, 13.56 MHz), a ferrite plate formed of the ferrite composition, a magnetic member for an antenna element formed of the ferrite plate, and an antenna element provided with a member for an antenna element. A ferrite composition, wherein: main components contain, with Fe2O3 conversion, 45.0-49.5 mol % of iron oxide, with CuO conversion, 4.0-16.0 mol % of copper oxide, with ZnO conversion, 19.0-25.0 mol % of zinc oxide, a remaining portion is constituted by nickel oxide, an inevitable impurity is removed with respect to the main components, and as accessory components, with TiO2 conversion, 0.5-2 weight % of titanium oxide, with CoO conversion, 0.35-2 weight % of cobalt oxide are contained.
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公开(公告)号：US12073972B2
公开(公告)日：2024-08-27
申请号：US17342080
申请日：2021-06-08
Applicant: TDK Corporation
Inventor： Kosuke Kunitsuka , Keigo Higashida , Emi Ito , Daisuke Urabe , Yugo Asai
CPC classification number: H01F17/045 , H01F27/2828 , H01F27/292 , H01F27/306 , H01F2017/0093
Abstract: Disclosed herein is a common mode filter that includes first and second wires wound in the same direction around the winding core part. The first and second wires have first to third layer winding portions, a first crossing portion positioned between the first and third layer winding portions, and a second crossing portion positioned between the second and third layer winding portions. The vertical positions of the first and second wires are reversed at least partially between the first and third layer winding portions, and the vertical positions of the first and second wires are reversed at least partially between the second and third layer winding portions.
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公开(公告)号：USD942947S1
公开(公告)日：2022-02-08
申请号：US29702696
申请日：2019-08-21
Applicant: TDK CORPORATION
Designer： Yugo Asai , Daisuke Urabe , Hiroshi Suzuki , Aoi Tokiwa , Kosuke Kunitsuka
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公开(公告)号：USD942393S1
公开(公告)日：2022-02-01
申请号：US29702680
申请日：2019-08-21
Applicant: TDK CORPORATION
Designer： Yugo Asai , Daisuke Urabe , Hiroshi Suzuki , Aoi Tokiwa , Kosuke Kunitsuka
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公开(公告)号：US20180174748A1
公开(公告)日：2018-06-21
申请号：US15840243
申请日：2017-12-13
Applicant: TDK Corporation
Inventor： Yuhei Horikawa , Makoto Orikasa , Yoshihiro Kanbayashi , Hisayuki Abe , Hirohumi Asou , Kosuke Kunitsuka
CPC classification number: H01F41/043 , C23C18/1607 , C23C18/1641 , C23C18/1653 , C25D5/48 , C25D13/12 , C25D13/22 , G06K19/07783 , H01F41/04 , H01F41/041 , H01F41/045 , H01F41/10 , H01Q1/36 , H01Q1/38 , H01Q1/48 , H01Q7/00 , H01Q9/27 , H05K3/181 , H05K3/188 , H05K3/241 , H05K3/242 , H05K3/246
Abstract: Disclosed herein is a method for manufacturing a planar coil, the method including forming a base conductive layer on a base material, the base conductive layer including: a coil wiring portion having one end, other end, and first to third connecting positions, the second connecting position being closer to the other end compared with the first connecting position, the third connecting position being closer to the one end compared with the second connecting position; a power-feed wiring portion that connects the first connecting position with an external power source; and a connection wiring portion that short-circuits the second connecting position and the third connecting position; forming a wiring conductive layer on the base conductive layer by electrolytic plating by feeding power from the external power source; and removing the power-feed wiring portion and the connection wiring portion.
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