公开(公告)号：US20250111969A1

公开(公告)日：2025-04-03

申请号：US18892837

申请日：2024-09-23

Applicant: TDK Corporation

Inventor： Nobuyuki OKUZAWA ,  Ryuji HASHIMOTO ,  Yuiko HIROSE ,  Yuta TAKAHASHI ,  Hiroki HOSAKA ,  Koki ENDO

IPC: H01F5/04 ,  H01F1/03 ,  H01F5/06 ,  H01F17/02

Abstract: A coil component includes an element body formed by laminating a plurality of insulator layers, and a pillar part disposed in the element body and extending in a lamination direction of the plurality of insulator layers. The pillar part has a plurality of pillar members laminated in the lamination direction. Between the two pillar members in the lamination direction, a defining part that defines a contact surface between the two pillar members is provided. The defining part is formed of a material different from a material of the pillar part, and is disposed at edges of the two pillar members when viewed from the lamination direction.