公开(公告)号：US11842844B2

公开(公告)日：2023-12-12

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: H01F27/28 ,  H01F27/29 ,  H01F17/00

CPC classification number: H01F27/292 ,  H01F17/0013 ,  H01F27/2847 ,  H01F2017/0073

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.

公开(公告)号：US20250111977A1

公开(公告)日：2025-04-03

申请号：US18775370

申请日：2024-07-17

Applicant: TDK Corporation

Inventor： Nobuyuki OKUZAWA ,  Munehiro Takaku

IPC: H01F17/00 ,  H01F27/29 ,  H01F27/32

Abstract: A coil component includes an element body, a first terminal electrode, a second terminal electrode, a first conductor disposed at a position closer to a principal surface in the element body and electrically connected to the first terminal electrode and the second terminal electrode, and a second conductor disposed at a position closer to a principal surface in the element body and electrically connected to the first terminal electrode and the second terminal electrode. The element body is formed of a material having light permeability, and an identification portion formed of a material different from a material of the first conductor is provided on a first surface facing the principal surface in the first conductor.

公开(公告)号：US12293864B2

公开(公告)日：2025-05-06

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 ,  H01F5/00 ,  H01F17/00 ,  H01F17/02 ,  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：US12080471B2

公开(公告)日：2024-09-03

申请号：US17166153

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

CPC classification number: H01F27/292 ,  H01F17/0006 ,  H01F27/2847 ,  H01F2017/0073

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 is connected to a second external electrode 4. When viewed from the facing direction, the area of the region where the turn 6 and the second external electrode 4 face each other and the area of the region where the turn 11 and the first external electrode 3 face each other are larger than the area of the region where turns other than the turn 6 and the turn 11 and the first external electrode 3 or the second external electrode 4 face each other.

公开(公告)号：US12272487B2

公开(公告)日：2025-04-08

申请号：US17177421

申请日：2021-02-17

Applicant: TDK CORPORATION

Inventor： Hajime Kato ,  Junichiro Urabe ,  Yuto Shiga ,  Kazuya Tobita ,  Youichi Kazuta ,  Noriaki Hamachi ,  Toshinori Matsuura ,  Yuichi Takubo ,  Munehiro Takaku

IPC: H01F27/28 ,  H01F17/00 ,  H01F17/02 ,  H01F27/29

Abstract: A multilayer coil component includes an element body, a coil, and a terminal electrode. The element body includes a first main face, second main face, first end face, second end face, first side face and second side face. The terminal electrode is connected to the coil. The terminal electrode includes a main-face electrode portion provided on the first main face. The coil includes a plurality of coil conductors. The plurality of coil conductors includes a first coil conductor disposed closest to the first main face to oppose to the main-face electrode portion and a second coil conductor disposed closer to the second main face than the first coil conductor. The first coil conductor has a width narrower than a width of the second coil conductor. The first coil conductor has an aspect ratio higher than an aspect ratio of the second coil conductor.

公开(公告)号：US12170163B2

公开(公告)日：2024-12-17

申请号：US17504344

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 a resin body. The resin body includes a winding core area surrounded by the coil pattern and having a first surface and a substantially flat second surface different in the circumferential direction position from the first surface, and a first surrounding area covering the first surface of the winding core area. The coil pattern includes first sections extending along the first surface of the winding core area and second sections extending along the second surface of the winding core area. One ends of the first sections are connected respectively to their corresponding one ends of the second sections. The other ends of the first sections are connected respectively to their corresponding other ends of the second sections.

公开(公告)号：US20240312684A1

公开(公告)日：2024-09-19

申请号：US18404404

申请日：2024-01-04

Applicant: TDK Corporation

Inventor： Ryuji Hashimoto ,  Nobuyuki Okuzawa ,  Yuta Takahashi ,  Hiroki Hosaka ,  Munehiro Takaku ,  Shinnosuke Suzuki

IPC: H01F5/06 ,  H01F5/04

CPC classification number: H01F5/06 ,  H01F5/04

Abstract: A coil component includes an element body formed by stacking a plurality of insulating layers and including a principal surface and a principal surface, a first terminal electrode and a second terminal electrode disposed on the principal surface of the element body, and a coil disposed in the element body and electrically connected to the first terminal electrode and the second terminal electrode. The coil includes a first wiring portion disposed on the principal surface side, a second wiring portion disposed on the principal surface side, and a pillar portion extending in the second direction and connecting the first wiring portion and the second wiring portion. In the pillar portion, a filler is disposed on a contact surface in which two conductors come into contact with each other.