公开(公告)号：US20230377792A1

公开(公告)日：2023-11-23

申请号：US18319548

申请日：2023-05-18

Applicant: TDK CORPORATION

Inventor： Satoshi SUGIMOTO ,  Syun ASHIZAWA

IPC: H01F27/29 ,  H01F27/28

CPC classification number: H01F27/292 ,  H01F27/2828

Abstract: A coil device includes: a core; a coil including a winding portion disposed inside the core, and a lead-out portion led out from the winding portion; and a terminal including a wire connection portion joined to the lead-out portion and disposed inside the core. The wire connection portion is disposed substantially parallel to a winding axis of the coil.

公开(公告)号：US20210319944A1

公开(公告)日：2021-10-14

申请号：US17230332

申请日：2021-04-14

Applicant: TDK CORPORATION

Inventor： Satoshi SUGIMOTO ,  Kyohei TONOYAMA ,  Miyuki ASAI ,  Takamasa IWASAKI

IPC: H01F27/255 ,  H01F27/28 ,  H01F27/32 ,  H01F41/02

Abstract: To provide a coil device capable of preventing a short circuit between turns of the coil part. A coil device 2 includes a core part 4 including a magnetic powder 41 and a resin 42, and a coil part 6 embedded in the core part 4 and having a wound wire 6a with an insulation coating layer 61.

公开(公告)号：US20210272736A1

公开(公告)日：2021-09-02

申请号：US17186425

申请日：2021-02-26

Applicant: TDK CORPORATION

Inventor： Syun ASHIZAWA ,  Takahiro BANZAI ,  Riku UMEKI ,  Satoshi SUGIMOTO ,  Hitoshi SASAKI

IPC: H01F27/24 ,  H01F27/29 ,  H01F41/04

Abstract: A coil device includes a main core and a sub core. The main core includes a middle leg for winding a coil body and an outer leg connected with the middle leg via a base portion. The sub core is disposed to face the base portion across the middle leg. A gap between the middle leg and the sub core is wider than that between the outer leg and the sub core.

公开(公告)号：US20190214181A1

公开(公告)日：2019-07-11

申请号：US16196603

申请日：2018-11-20

Applicant: TDK CORPORATION

Inventor： Chen WANG ,  Satoshi SUGIMOTO

IPC: H01F27/26 ,  H01F27/28 ,  H01F27/02

CPC classification number: H01F27/266 ,  H01F27/022 ,  H01F27/2823

Abstract: An inductor element includes a first conductive portion, a second conductive portion, and a magnetic core. The first conductive portion includes a first round-about portion, a first mount portion, and a second mount portion. The second conductive portion includes a second round-about portion, a third mount portion, and a fourth mount portion. The magnetic core houses at least a part of the first and second conductive portions so that each mount surface of the first to fourth mount portions is exposed from one side of the magnetic core. The first and second conductive portions are arranged so that the first and second directions are substantially parallel and opposite to each other. The first and third mount portions are at least partially overlapped with each other in a third direction perpendicular to the first and second directions.