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公开(公告)号：US12191068B2
公开(公告)日：2025-01-07
申请号：US17079669
申请日：2020-10-26
Applicant: TDK CORPORATION
Inventor： Shuhei Someya , Aoi Tokiwa , Daisuke Urabe
IPC: H01F27/29 , H01F27/06 , H01F27/24 , H01F27/28 , H01F41/069
Abstract: A coil device includes a winding core, a flange, and a terminal fitting. The winding core is wound by a wire. The flange is formed at an end of the winding core in its axial direction. The terminal fitting is attached to the flange. The terminal fitting includes an engagement part engaged with a circumferential wall part of the flange.
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公开(公告)号：USD921586S1
公开(公告)日：2021-06-08
申请号：US29680932
申请日：2019-02-21
Applicant: TDK CORPORATION
Designer： Yugo Asai , Daisuke Urabe , Hiroshi Suzuki , Aoi Tokiwa
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公开(公告)号：US11869704B2
公开(公告)日：2024-01-09
申请号：US17079658
申请日：2020-10-26
Applicant: TDK CORPORATION
Inventor： Shuhei Someya , Aoi Tokiwa , Daisuke Urabe
IPC: H01F27/29 , H01F27/28 , H01F41/064 , H01F27/24
CPC classification number: H01F27/2828 , H01F27/24 , H01F41/064
Abstract: A coil device includes a winding core, a wire, and a terminal fitting. The winding core is made of a magnetic material and includes a flange. The wire is wound around the winding core. The terminal fitting is attached to a part of an outer surface of the flange. The terminal fitting includes a contact part and a protrusion plate part. The contact part is contacted with the outer surface of the flange. The protrusion plate part is formed integrally with the contact part and protrudes away from the flange. The protrusion plate part includes a wire connection surface and a main mounting surface. A lead end of the wire is connected to the wire connection surface. The main mounting surface is located opposite to the wire connection surface and is connectable to an external circuit.
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公开(公告)号：US11636969B2
公开(公告)日：2023-04-25
申请号：US16751637
申请日：2020-01-24
Applicant: TDK CORPORATION
Inventor： Hanako Yoshino , Hiroshi Suzuki , Daisuke Urabe , Keigo Higashida , Tomokazu Tsuchiya
IPC: H01F27/28 , H01F27/00 , H01F27/30 , H01F41/069 , H01F27/29
Abstract: Disclosed herein is a coil component that includes a winding core part and first and second wires wound around the winding core part. The first and second wires constitute at least three winding layers on the winding core part. The same turns of the first and second wires are positioned in mutually different winding layers over a plurality of turns.
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公开(公告)号：US20190228895A1
公开(公告)日：2019-07-25
申请号：US16236534
申请日：2018-12-30
Applicant: TDK Corporation
Inventor： Yugo Asai , Tsutomu Kobayashi , Daisuke Urabe , Hiroshi Suzuki , Emi Ito , Toshio Tomonari
Abstract: Disclosed herein is a common mode filter that includes: a winding core part including first and second winding areas and a third winding area positioned between the first and second winding areas; and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block wound in the first winding area and a second winding block wound in the second winding area. The first and second wires cross each other in the third winding area. Each of the first and second winding blocks has first and second winding layers. The difference in a number of turns between the first winding layer and the second winding layer is larger in the first winding block than in the second winding block.
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公开(公告)号：US12143089B2
公开(公告)日：2024-11-12
申请号：US18379596
申请日：2023-10-12
Applicant: TDK Corporation
Inventor： Yugo Asai , Tsutomu Kobayashi , Daisuke Urabe , Hiroshi Suzuki , Emi Ito , Toshio Tomonari
Abstract: Disclosed herein is a common mode filter that includes a winding core part and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block on one endmost side in an axial direction of the winding core part, a second winding block on other endmost side in the axial direction of the winding core part, and a third winding block positioned between the first and second winding blocks. The second winding block is a winding block at an odd-numbered position counted from the first winding block. The first and second wires cross each other in an area between the first and third winding blocks and in an area between the second and third winding blocks.
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公开(公告)号：US12094638B2
公开(公告)日：2024-09-17
申请号：US17189824
申请日：2021-03-02
Applicant: TDK Corporation
Inventor： Yugo Asai , Aoi Tokiwa , Daisuke Urabe
CPC classification number: H01F27/2823 , H01F27/26
Abstract: Disclosed herein is a coil component that includes: a drum-shaped core including first and second flange parts and a winding core part; first terminal electrodes provided on the first flange part; second terminal electrodes provided on the second flange part; a plurality of wires wound around the winding core part, each of the plurality of wires having a first end connected to an associated one of the first terminal electrodes, and having a second end connected to an associated one of the second terminal electrodes; and a plate-like core fixed to the first and second flange parts. Each of the first and second flange parts has a first groove formed in a surface facing the plate-like core. The plurality of wires are positioned in parallel to each other in each of the first grooves formed in the first and second flange parts.
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公开(公告)号：USD1029763S1
公开(公告)日：2024-06-04
申请号：US29774886
申请日：2021-03-19
Applicant: TDK CORPORATION
Designer： Yugo Asai , Daisuke Urabe , Hiroshi Suzuki , Aoi Tokiwa
Abstract: FIG. 1 is a front elevational view of a core of coil component, showing the new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left-side elevational view thereof;
FIG. 4 is a right-side elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
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公开(公告)号：USD1022908S1
公开(公告)日：2024-04-16
申请号：US29777419
申请日：2021-04-06
Applicant: TDK CORPORATION
Designer： Yugo Asai , Daisuke Urabe , Hiroshi Suzuki , Aoi Tokiwa
Abstract: FIG. 1 is a front view of a coil component according to a first embodiment, showing the new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a left-side view thereof;
FIG. 4 is a right-side view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a front view of a coil component according to a second embodiment, showing the new design;
FIG. 8 is a rear view thereof;
FIG. 9 is a left-side view thereof;
FIG. 10 is a right-side view thereof;
FIG. 11 is a top view thereof;
FIG. 12 is a bottom view thereof;
FIG. 13 is a front view thereof in a disassembled configuration; and,
FIG. 14 is a partial bottom view thereof in a disassembled configuration.
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公开(公告)号：US11605485B2
公开(公告)日：2023-03-14
申请号：US16236534
申请日：2018-12-30
Applicant: TDK Corporation
Inventor： Yugo Asai , Tsutomu Kobayashi , Daisuke Urabe , Hiroshi Suzuki , Emi Ito , Toshio Tomonari
Abstract: Disclosed herein is a common mode filter that includes: a winding core part including first and second winding areas and a third winding area positioned between the first and second winding areas; and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block wound in the first winding area and a second winding block wound in the second winding area. The first and second wires cross each other in the third winding area. Each of the first and second winding blocks has first and second winding layers. The difference in a number of turns between the first winding layer and the second winding layer is larger in the first winding block than in the second winding block.
