公开(公告)号：US20190237239A1

公开(公告)日：2019-08-01

申请号：US16249132

申请日：2019-01-16

Applicant: TDK CORPORATION

Inventor： Hajime KATO ,  Satoru OKAMOTO ,  Masahiro KATO ,  Makoto YOSHINO ,  Kazuya TOBITA ,  Yuto SHIGA ,  Youichi KAZUTA ,  Noriaki HAMACHI

IPC: H01F27/28 ,  H01F27/29

CPC classification number: H01F27/2804 ,  H01F27/29 ,  H01F2027/2809

Abstract: A laminated coil component 1 includes an element body 2, a coil 8 disposed in the element body 2, and a first external electrode 4 and a second external electrode 5, and at least a part of the coil 8 is disposed in a first region A1 and a second region A2 when seen in a facing direction of the pair of side surfaces 2e and 2f, and the coil 8 is not disposed in a third region A3 and a fourth region A4 when seen in the facing direction of the pair of side surfaces 2e and 2f.

公开(公告)号：US20180286566A1

公开(公告)日：2018-10-04

申请号：US15940170

申请日：2018-03-29

Applicant: TDK CORPORATION

Inventor： Shunji AOKI ,  Yuya ISHIMA ,  Makoto TAKAHASHI ,  Shougo OKAMOTO ,  Takafumi TAKAHASHI ,  Hajime KATO ,  Yuto SHIGA

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

Abstract: An electronic component includes an element body, a conductor, and a plated electrode layer. The element body includes a first outer surface provided with a first recess. The conductor includes a first conductor portion. The first conductor portion is disposed in the first recess and includes a first face opposed to a bottom face of the first recess and a second face opposed to the first face. The plated electrode layer includes a first plating portion covering the second face. The second face includes a first slope inclined with respect to the first outer surface in such a way as to be recessed toward the bottom face side of the first recess from the first outer surface.

公开(公告)号：US20240136112A1

公开(公告)日：2024-04-25

申请号：US18361370

申请日：2023-07-27

Applicant: TDK CORPORATION

Inventor： So KOBAYASHI ,  Youichi KAZUTA ,  Yuto SHIGA ,  Yuichi TAKUBO ,  Xuran GUO ,  Toru YAGINUMA

IPC: H01F27/29 ,  H01F17/00

CPC classification number: H01F27/292 ,  H01F17/0013

Abstract: A coil component includes an element body, a coil, a first terminal electrode, and a second terminal electrode. The coil has a coil axis extending in a direction in which a pair of side surfaces face each other. The first terminal electrode and the second terminal electrode have first electrode portions exposed on end surfaces and second electrode portions exposed on a main surface, respectively, and are not exposed on each of the pair of side surfaces. In a direction in which a pair of main surfaces face each other, a distance between each of ends of the first electrode portions on the main surface side and the main surface is larger than a distance between a top portion of the coil closest to the main surface and the main surface.

公开(公告)号：US20230402216A1

公开(公告)日：2023-12-14

申请号：US18317997

申请日：2023-05-16

Applicant: TDK CORPORATION

Inventor： Yuto SHIGA ,  So KOBAYASHI ,  Youichi KAZUTA ,  Yuichi TAKUBO ,  Xuran GUO

IPC: H01F17/00 ,  H01F27/29

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

Abstract: A coil includes a plurality of coil conductors. The coil includes a plurality of connection portions each at which adjacent coil conductors of the plurality of coil conductors are electrically connected to each other and the adjacent coil conductors overlap each other. The plurality of connection portions include a first connection portion and a second connection portion that is farther from an electrode portion on a main surface than the first connection portion. A second area where the adjacent coil conductors overlap each other in the second connection portion is larger than a first area where the adjacent coil conductors overlap each other in the first connection portion.

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.

公开(公告)号：US20220139611A1

公开(公告)日：2022-05-05

申请号：US17514072

申请日：2021-10-29

Applicant: TDK CORPORATION

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

IPC: H01F27/29

Abstract: A multilayer coil component 1 includes an element body 2, a coil 10, and a pair of terminal electrodes 3. The element body 2 has a groove portion 20 provided on a main surface 2c. The groove portion 20 is disposed between the pair of terminal electrodes 3 and extends over one side surface 2e and the other side surface 2f. The depth of the groove portion 20 in the direction in which the main surface 2c and a main surface 2d, which are a pair, face each other is smaller than the thickness of each of the pair of terminal electrodes 3 in the facing direction.

公开(公告)号：US20200176173A1

公开(公告)日：2020-06-04

申请号：US16696274

申请日：2019-11-26

Applicant: TDK CORPORATION

Inventor： Kazuya TOBITA ,  Yuto SHIGA ,  Youichi KAZUTA ,  Noriaki HAMACHI

IPC: H01F27/28 ,  H01F27/29 ,  H01F27/34

Abstract: A first dimension of each of a first connection portion 12 and a second connection portion 14 in the direction in which a pair of side surfaces 2e and 2f face each other is smaller than an inner diameter W2 of a coil 8 in the direction and is larger than a width W1 of each of a plurality of coil conductors in the direction. A second dimension of each of the first connection portion 12 and the second connection portion 14 in the direction in which a pair of main surfaces 2c and 2d face each other is larger than a thickness H1 of each of the plurality of coil conductors in the direction and is smaller than a height H2 of the coil 8 in the direction.