公开(公告)号：US10123422B2

公开(公告)日：2018-11-06

申请号：US15803818

申请日：2017-11-05

Applicant: TDK Corporation

Inventor： Nobuo Takagi ,  Kouyu Ohi ,  Tasuku Mikogami ,  Setu Tsuchida

IPC: H05K1/16 ,  H05K1/18 ,  H05K3/34 ,  H01F27/29 ,  H01F27/28 ,  H01F27/24

Abstract: Disclosed herein is a coil component that includes a drum-shaped core having a first flange part provided at one end of a winding core part, first to fourth terminal electrodes formed on the first flange part so as to be arranged in this order in a second direction, and first to fourth wires wound around the winding core part. One ends of the first to fourth wires are connected to different ones of the first to fourth terminal electrodes. The first and second terminal electrodes are not symmetrical with the third and fourth terminal electrodes so that the third and fourth terminal electrodes are offset outward compared with the first and second terminal electrodes.

公开(公告)号：US12266466B2

公开(公告)日：2025-04-01

申请号：US18071098

申请日：2022-11-29

Applicant: TDK CORPORATION

Inventor： Kouyu Ohi ,  Tasuku Mikogami ,  Shuhei Someya ,  Yusuke Kimoto

IPC: H01F27/29 ,  H01F27/24 ,  H01F27/28

Abstract: To provide a coil device having high bonding strength and bonding reliability.
The coil device 1 has a core member 10 having a winding core and a flange 12, a wire 32 wound around the winding core, and a terminal electrode 52 connected with a lead 32a of a wire 32 provided to the flange 12; and an easy bonding layer 70 is formed on the surface of the terminal electrode 52 connected with the lead 32a in a stripe form 70a. the stripe form each bonding layer 70a is formed as a laser mark 71. In the coil device 1, a residue of coating film 78 which may be generated when the lead 32a of the wire 32 is connected to the mounting part 65 of the terminal electrode 52 is removed by laser.

公开(公告)号：USD1047910S1

公开(公告)日：2024-10-22

申请号：US29952292

申请日：2024-07-15

Applicant: TDK Corporation

Designer： Takashi Arasawa ,  Kouyu Ohi ,  Yusuke Kimoto ,  Tomoya Tsubai

Abstract: FIG. 1 is a front elevational view of a 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;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a perspective view thereof;
FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 3; and,
FIG. 9 is a reference view with a cover removed.
The broken lines depict parts of the coil component that form no part of the claimed design. The dot-dash chain lines depict boundaries of the claimed subject matter and form no part of the claimed design.

公开(公告)号：USD1040762S1

公开(公告)日：2024-09-03

申请号：US29772989

申请日：2021-03-05

Applicant: TDK CORPORATION

Designer： Takashi Arasawa ,  Kouyu Ohi ,  Yusuke Kimoto ,  Tomoya Tsubai

Abstract: FIG. 1 is a front elevational view of a 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;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a perspective view thereof;
FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 3; and,
FIG. 9 is a reference view with a cover removed.
The broken lines depict parts of the coil component that form no part of the claimed design. The dot-dash chain lines depict boundaries of the claimed subject matter and form no part of the claimed design.

公开(公告)号：US11657956B2

公开(公告)日：2023-05-23

申请号：US16571668

申请日：2019-09-16

Applicant: TDK CORPORATION

Inventor： Tasuku Mikogami ,  Kouyu Ohi ,  Yusuke Kimoto

IPC: H01F27/29 ,  H01F27/28 ,  H01F27/24

CPC classification number: H01F27/292 ,  H01F27/2828 ,  H01F27/24

Abstract: A coil device 1 including a winding core 11 and flanges 12, 12, wires 31 to 34 wound around the winding core 11 and having one end located at the flanges 12, 12, and terminal electrodes 51 to 56 provided on the flanges 12, 12. The terminal electrodes 51 to 56 includes a wire connecting part 63a, 63b to which the one end of the wires 31 to 34 are connected and a mounting part 65 formed continuously to the wire connecting part 63a, 63b and to be positioned away from an axis of the winding core with respect to the wire connecting parts 63a, 63b along an outer peripheral direction of the flanges 12, 12.

公开(公告)号：US11610713B2

公开(公告)日：2023-03-21

申请号：US17088638

申请日：2020-11-04

Applicant: TDK CORPORATION

Inventor： Katsumi Kobayashi ,  Kouyu Ohi

IPC: H01F17/04 ,  H01F27/29 ,  H01F27/28

Abstract: A coil device comprising, the core body having a coil core part and a core bottom face, and a coil part forming spiral conductive pathway around the coil core part. A metal electrode is formed at the core bottom face, and the wire ends which are the conductive pathway of the coil part are formed at the metal electrode, and a part of the surface of the metal electrode is covered by the conductive resin electrode.

公开(公告)号：US20190385786A1

公开(公告)日：2019-12-19

申请号：US16444747

申请日：2019-06-18

Applicant: TDK CORPORATION

Inventor： Shuhei SOMEYA ,  Kouyu Ohi ,  Tasuku Mikogami

IPC: H01F27/34 ,  H01F27/28 ,  H01F27/29 ,  H01F27/24

Abstract: Disclosed herein is a coil component that includes: a first magnetic core extending in the first direction and around which the wires are wound; a second magnetic core having a first wall surface part covering the first magnetic core from one side in the second direction, a second wall surface part covering the first magnetic core from other side in the second direction, and a third wall surface part covering the first magnetic core from one side in the third direction; first and second terminal electrodes connected respectively to one ends of the wires and arranged in the first direction along the first wall surface part; and third and fourth terminal electrodes connected respectively to other ends of the wires and arranged in the first direction along the second wall surface part.

公开(公告)号：US10366823B2

公开(公告)日：2019-07-30

申请号：US15401504

申请日：2017-01-09

Applicant: TDK Corporation

Inventor： Nobuo Takagi ,  Kouyu Ohi ,  Tasuku Mikogami ,  Setu Tsuchida

IPC: H01F17/04 ,  H01F27/28 ,  H01F27/29 ,  H01F27/30 ,  H01F3/10

Abstract: Disclosed herein is a coil component that includes a drum-shaped core having a winding part, first and second terminal electrodes provided on the first flange part of the drum-shaped core, third and fourth terminal electrodes provided on the second flange part of the drum-shaped core, a first coil wound around the winding core part connected between the first and third terminal electrodes, and a second coil wound around the winding core part connected between the second and fourth terminal electrodes. The first and second coils cross each other at the first drawing part positioned between the winding part and the first flange part. The first coil is constituted by two or more wires.

公开(公告)号：US10186376B2

公开(公告)日：2019-01-22

申请号：US15201742

申请日：2016-07-05

Applicant: TDK Corporation

Inventor： Tasuku Mikogami ,  Nobuo Takagi ,  Kouyu Ohi ,  Syun Ashizawa ,  Setu Tsuchida

IPC: H01F41/069 ,  H01F27/28 ,  H01F17/00 ,  H01F27/32 ,  H01F41/12 ,  H01F27/29

Abstract: Disclosed herein is a coil component that includes: a drum core including a first flange portion, a second flange portion and a winding core portion positioned between the first and second flange portions; a plurality of coated conductive wires forming a first winding layer wound around the winding core portion and a second winding layer wound around the winding core portion with an intervention of the first winding layer; and a resin coating layer covering the coated conductive wires. A maximum space between the coated conductive wires in the first winding layer is narrower than a diameter of the coated conductive wires.

公开(公告)号：US20170200548A1

公开(公告)日：2017-07-13

申请号：US15401504

申请日：2017-01-09

Applicant: TDK Corporation

Inventor： Nobuo TAKAGI ,  Kouyu Ohi ,  Tasuku Mikogami ,  Setu Tsuchida

IPC: H01F27/24 ,  H01F27/29 ,  H01F27/28

CPC classification number: H01F27/2828 ,  H01F3/10 ,  H01F27/292 ,  H01F27/306

Abstract: Disclosed herein is a coil component that includes a drum-shaped core having a winding part, first and second terminal electrodes provided on the first flange part of the drum-shaped core, third and fourth terminal electrodes provided on the second flange part of the drum-shaped core, a first coil wound around the winding core part connected between the first and third terminal electrodes, and a second coil wound around the winding core part connected between the second and fourth terminal electrodes. The first and second coils cross each other at the first drawing part positioned between the winding part and the first flange part. The first coil is constituted by two or more wires.