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：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：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：US20230290561A1

公开(公告)日：2023-09-14

申请号：US18087138

申请日：2022-12-22

Applicant: TDK CORPORATION

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

IPC: H01F27/29 ,  H01F27/28

CPC classification number: H01F27/292 ,  H01F27/2804 ,  H01F2027/2809

Abstract: A multilayer coil component includes an element body including a main surface, first and second external electrodes disposed on the main surface, a coil disposed in the element body, a first connection conductor connecting the first external electrode and the coil, and a second connection conductor connecting the second external electrode and the coil. The second connection conductor includes a pad conductor and a through-hole conductor. The pad conductor and through-hole conductor are separated from the coil. The through-hole conductor includes a connection end connected to the pad conductor. The pad conductor includes a first portion overlapping the entire connection end included in the through-hole conductor and a second portion continuous with the first portion. The second portion is separated from the coil more than the first portion.

公开(公告)号：US20230119231A1

公开(公告)日：2023-04-20

申请号：US17964280

申请日：2022-10-12

Applicant: TDK Corporation

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

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

Abstract: The element body includes a main surface, and a side surface located on imaginary planes orthogonal to the main surface. The external electrode includes first, second and third electrode portions. The first electrode portion is exposed at the main surface. The second electrode portion is continuous with the first electrode portion and exposed at the main surface. The second electrode portion is located to extend from the first electrode portion to the imaginary planes when viewed in a direction orthogonal to the main surface. The third electrode portion is continuous with the first electrode portion and is separated from the second electrode portion in the direction orthogonal to the main surface. The third electrode portion includes outer edges coinciding with the imaginary planes when viewed in the direction orthogonal to the main surface. The element body includes a part between the second electrode portion and the third electrode portion.

公开(公告)号：US20220216003A1

公开(公告)日：2022-07-07

申请号：US17568754

申请日：2022-01-05

Applicant: TDK CORPORATION

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

IPC: H01F27/29 ,  H01F27/06 ,  H01F27/28 ,  H01F41/04

Abstract: A multilayer inductor includes: an element body formed by stacking a plurality of layers of insulators in a stacking direction; a terminal electrode provided on at least one side surface of the element body; and a linear conductor portion provided in the element body and extending in a first direction, wherein, as viewed from a second direction perpendicular to the first direction, the conductor portion has a first portion in a region overlapping the terminal electrode and a second portion in a region not overlapping the terminal electrode, and wherein a width of the first portion as viewed from the second direction is smaller than a width of the second portion.

公开(公告)号：US20220189683A1

公开(公告)日：2022-06-16

申请号：US17546851

申请日：2021-12-09

Applicant: TDK CORPORATION

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

IPC: H01F27/29 ,  H01F17/00

Abstract: A multilayer coil component includes an element body, a coil, and an external terminal. The element body includes a plurality of insulator layers that is laminated. The coil is disposed in the element body. The external terminal includes a plurality of conductor layers that is laminated. The external terminal is electrically connected to the coil. The element body includes a main face and a first side face adjacent to the main face. The external terminal is embedded in the element body in such a way as to be separated from the first side face and exposed from the main face. The external terminal includes a first separated face that is separated from the first side face as being separated from the main face.