公开(公告)号：US20220130601A1

公开(公告)日：2022-04-28

申请号：US17504315

申请日：2021-10-18

Applicant: TDK Corporation

Inventor： Nobuyuki OKUZAWA ,  Kazuhiko ITO ,  Munehiro TAKAKU ,  Junichiro URABE

IPC: H01F27/32 ,  H01F27/29

Abstract: Disclosed herein is a coil component that includes a resin body having a first resin-based insulating material and a second resin-based insulating material lower in relative permittivity than the first resin-based insulating material, a coil pattern embedded in the resin body and helically wound in a plurality of turns, and first and second terminal electrodes formed on a surface of the resin body and connected respectively to one and other ends of the coil pattern. The coil pattern has a part covered with the first resin-based insulating material and another part covered with the second resin-based insulating material.

公开(公告)号：US20220130595A1

公开(公告)日：2022-04-28

申请号：US17504330

申请日：2021-10-18

Applicant: TDK Corporation

Inventor： Nobuyuki OKUZAWA ,  Kazuhiko ITO ,  Munehiro TAKAKU ,  Junichiro URABE

IPC: H01F27/28 ,  H01F27/29 ,  H01F27/32 ,  H01F41/12

Abstract: Disclosed herein is a coil component that includes a coil pattern embedded in an element body and helically wound in a plurality of turns. The element body includes a support body having a cavity formed therein and a first insulating layer stacked on the support body so as to cover the cavity, thereby forming a hollow space inside the element body. The coil pattern includes a plurality of first sections formed along an inner wall of the cavity and a plurality of second sections formed on the first insulating layer. One ends of the plurality of first sections are connected respectively to their corresponding one ends of the plurality of second sections. The other ends of the plurality of first sections are connected respectively to their corresponding other ends of the plurality of second sections.

公开(公告)号：US20210249184A1

公开(公告)日：2021-08-12

申请号：US17166448

申请日：2021-02-03

Applicant: TDK CORPORATION

Inventor： Junichiro URABE ,  Hajime KATO ,  Yuto SHIGA ,  Kazuya TOBITA ,  Youichi KAZUTA ,  Noriaki HAMACHI ,  Toshinori MATSUURA ,  Yuichi TAKUBO ,  Asami TAKAHASHI ,  Munehiro TAKAKU

IPC: H01F27/29 ,  H01F17/00 ,  H01F27/28

Abstract: In a coil 5 of a multilayer coil component 1, an end portion 6a of a turn 6 closest to a side surface 2e in the facing direction of the side surface 2e and a side surface 2f is connected to a first external electrode 3 and an end portion 11a of a turn 11 closest to the side surface 2f in the facing direction of the pair of side surfaces 2e and 2f is connected to a second external electrode 4. The area at which the turn 6 faces the second external electrode 4 and the area at which the turn 11 faces the first external electrode 3 are smaller than the area at which turns 7, 8, 9, and 10 other than the turn 6 and the turn 11 face the first external electrode 3 or the second external electrode 4.