公开(公告)号：US20220139610A1

公开(公告)日：2022-05-05

申请号：US17514020

申请日：2021-10-29

Applicant: TDK CORPORATION

Inventor： Youichi KAZUTA ,  Yuichi TAKUBO ,  Yuto SHIGA ,  Junichiro URABE ,  Noriaki HAMACHI ,  Kazuya TOBITA ,  Toshinori MATSUURA

IPC: H01F27/29 ,  H05K1/18

Abstract: A multilayer coil component 1 includes an element body 2, a pair of terminal electrodes 3, and a glass layer G provided on the terminal electrode 3. Each of the pair of terminal electrodes 3 is provided with a plurality of first projecting portions 33 tapered toward the other facing terminal electrode 3 side in an end portion 31b facing the side in the facing direction of a pair of end surfaces 2a and 2b. The glass layer G is provided along the edge of the terminal electrode 3 including at least the first projecting portion 33 in the end portion 31b of the terminal electrode 3.

公开(公告)号：US20220130596A1

公开(公告)日：2022-04-28

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：US20240087798A1

公开(公告)日：2024-03-14

申请号：US18304066

申请日：2023-04-20

Applicant: TDK CORPORATION

Inventor： Junichiro URABE ,  Toshinori MATSUURA ,  Hajime KATO ,  Shintarou KOIKE ,  Kazushige TOHTA ,  Takuto KAZAMA ,  Masashi GOTOH

IPC: H01F27/29 ,  H01F27/28 ,  H01F41/076

CPC classification number: H01F27/292 ,  H01F27/2828 ,  H01F41/076

Abstract: A coil component includes a coil configured of a winding, an exterior body provided to cover the coil, and a terminal part configured to be continuous with the winding. A proximal end portion of the terminal part is buried in the exterior body. A distal end portion ahead of the proximal end portion is bent from the proximal end portion and located outside a mounting surface of the exterior body along the mounting surface.

公开(公告)号：US20230317360A1

公开(公告)日：2023-10-05

申请号：US18187813

申请日：2023-03-22

Applicant: TDK CORPORATION

Inventor： Kazuya TOBITA ,  Xuran GUO ,  Youichi KAZUTA ,  Yuichi TAKUBO ,  Yuto SHIGA ,  So KOBAYASHI ,  Toshinori MATSUURA ,  Noriaki HAMACHI ,  Junichiro URABE ,  Shunya SUZUKI

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

CPC classification number: H01F27/292 ,  H01F17/0013 ,  H01F27/2804 ,  H01F2017/002 ,  H01F2027/2809

Abstract: In the multilayer inductor, the extending direction of the connection portion is a direction along the turn portion when viewed from the extending direction of the coil axis. In this case, the change of the current route at the junction portion between the turn portion and the connection portion becomes gentle. Therefore, the signal loss at the junction portion is reduced, a high Q value can be achieved.

公开(公告)号：US20220301764A1

公开(公告)日：2022-09-22

申请号：US17696326

申请日：2022-03-16

Applicant: TDK CORPORATION

Inventor： Kazuya TOBITA ,  Youichi KAZUTA ,  Yuichi TAKUBO ,  Junichiro URABE ,  Noriaki HAMACHI ,  Yuto SHIGA ,  Toshinori MATSUURA

IPC: H01F27/29 ,  H01F17/00

Abstract: A multilayer coil component includes: a through hole connecting portion electrically connecting an end portion of the coil portion and the external terminal, in which a coil pattern and a through hole pattern are formed in each of the plurality of layers, the through hole connecting portion is formed by mutually joining a plurality of the through hole patterns in the lamination direction, the through hole pattern in at least one first layer among the plurality of layers is shifted with respect to the through hole pattern in another second layer when viewed from the lamination direction, and, when viewed from the lamination direction, a distance between the through hole pattern in the first layer and a coil pattern in the first layer is farther than a distance between the through hole pattern in the second layer and the coil pattern in the first layer.

公开(公告)号：US20220293324A1

公开(公告)日：2022-09-15

申请号：US17682552

申请日：2022-02-28

Applicant: TDK CORPORATION

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

IPC: H01F27/02 ,  H01F27/29

Abstract: In a coil component, a coil is disposed in the element body and has a pair of tip portions. A pair of external electrodes are disposed on an outer surface of the element body and respectively connected to the pair of tip portions. The element body includes a core portion including a shaft portion and a pair of side end portions. The shaft portion extends in a first direction, and the coil is wound around the shaft portion. The pair of side end portions are continuous with both ends of the shaft portion in the first direction. The shaft portion and the pair of side end portions are integrally formed of the same material. The shaft portion is covered with a resin molding portion. At least a part of the pair of side end portions is exposed from the resin molding portion.

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.

公开(公告)号：US20240120140A1

公开(公告)日：2024-04-11

申请号：US18335607

申请日：2023-06-15

Applicant: TDK CORPORATION

Inventor： Noriaki HAMACHI ,  Toshinori MATSUURA ,  Junichiro URABE ,  Kota OIKAWA ,  Yuto SHIGA ,  Youichi KAZUTA ,  Yuichi TAKUBO ,  Shunya SUZUKI ,  Xuran GUO ,  So KOBAYASHI

IPC: H01F17/00 ,  H01F27/29

CPC classification number: H01F17/0013 ,  H01F27/292 ,  H01F2017/002

Abstract: A plurality of through-hole conductors include a first through-hole conductor and a second through-hole conductor between coil conductors adjacent each other. Each of the first through-hole conductor and the second through-hole conductor includes a first end and a second end. The first end included in the second through-hole conductor is coupled to the second end included in the first through-hole conductor, and has a width larger than a width of the second end included in the first through-hole conductor. The first end included in the first through-hole conductor has a width larger than the width of the second end included in the first through-hole conductor. The second end included in the second through-hole conductor has a width smaller than the width of the first end included in the second through-hole conductor.