公开(公告)号：US12300425B2

公开(公告)日：2025-05-13

申请号：US17834721

申请日：2022-06-07

Applicant: TDK CORPORATION

Inventor： Shuhei Someya ,  Kouyu Ohi ,  Tasuku Mikogami

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

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：US11742134B2

公开(公告)日：2023-08-29

申请号：US17159398

申请日：2021-01-27

Applicant: TDK Corporation

Inventor： Masato Otsuka ,  Kouyu Ohi ,  Yusuke Kimoto ,  Setu Tsuchida

IPC: H01F27/24 ,  H01F27/28 ,  H01F27/29 ,  H05K1/11 ,  H05K1/18

CPC classification number: H01F27/2823 ,  H01F27/24 ,  H01F27/292 ,  H05K1/11 ,  H05K1/181 ,  H05K2201/1003

Abstract: Disclosed herein is a coil component that includes a core, first to fourth terminal electrodes provided on a first flange part, fifth to eighth terminal electrodes provided on a second flange part, first and second wires bifilar wound around a winding core part, and third and fourth wires bifilar wound around the winding core part. One and other ends of the first to eighth wires are connected corresponding one of the first to eighth terminal electrodes. The first and second wires cross each other in a first crossing area. The third and fourth wires cross each other in a second crossing area different from the first crossing area.

公开(公告)号：US20170196093A1

公开(公告)日：2017-07-06

申请号：US15395045

申请日：2016-12-30

Applicant: TDK Corporation

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

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

CPC classification number: H05K1/181 ,  H01F3/10 ,  H01F19/04 ,  H01F27/24 ,  H01F27/2823 ,  H01F27/2828 ,  H01F27/292 ,  H05K3/3442 ,  H05K2201/1003 ,  Y02P70/611 ,  Y02P70/613

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：US20170194085A1

公开(公告)日：2017-07-06

申请号：US15395099

申请日：2016-12-30

Applicant: TDK Corporation

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

IPC: H01F27/06 ,  H01F19/04

CPC classification number: H01F27/06 ,  H01F3/10 ,  H01F27/29 ,  H01F27/292 ,  H01F2027/065

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 metal fittings 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 metal fittings. A distance between the first and second terminal metal fittings is larger than the distance between the third and fourth terminal metal fittings. An amount of an adhesive used to bond each of the third and fourth terminal metal fittings is greater than an amount of an adhesive used to bond each of the first and second metal fittings.

公开(公告)号：US20220301766A1

公开(公告)日：2022-09-22

申请号：US17834721

申请日：2022-06-07

Applicant: TDK CORPORATION

Inventor： Shuhei Someya ,  Kouyu Ohi ,  Tasuku Mikogami

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

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：US11424070B2

公开(公告)日：2022-08-23

申请号：US16444747

申请日：2019-06-18

Applicant: TDK CORPORATION

Inventor： Shuhei Someya ,  Kouyu Ohi ,  Tasuku Mikogami

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

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：US10861631B2

公开(公告)日：2020-12-08

申请号：US15610966

申请日：2017-06-01

Applicant: TDK CORPORATION

Inventor： Katsumi Kobayashi ,  Kouyu Ohi

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

Abstract: A coil device includes a core body having a coil core part and a core bottom face, The coil device further includes 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 a conductive resin electrode.

公开(公告)号：US10319512B2

公开(公告)日：2019-06-11

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：US09839129B2

公开(公告)日：2017-12-05

申请号：US15395045

申请日：2016-12-30

Applicant: TDK Corporation

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

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

CPC classification number: H05K1/181 ,  H01F3/10 ,  H01F19/04 ,  H01F27/24 ,  H01F27/2823 ,  H01F27/2828 ,  H01F27/292 ,  H05K3/3442 ,  H05K2201/1003 ,  Y02P70/611 ,  Y02P70/613

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：US11545294B2

公开(公告)日：2023-01-03

申请号：US16577286

申请日：2019-09-20

Applicant: TDK CORPORATION

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

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

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.