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：US20230207182A1

公开(公告)日：2023-06-29

申请号：US17969339

申请日：2022-10-19

Applicant: TDK CORPORATION

Inventor： Nobuyuki OKUZAWA ,  Kazuya TOBITA ,  Munehiro TAKAKU ,  Teruhiro MITSUYASU

IPC: H01F27/28 ,  H01F27/32 ,  H01F27/29 ,  H01F27/02

CPC classification number: H01F27/2823 ,  H01F27/327 ,  H01F27/292 ,  H01F27/022

Abstract: A multilayer coil component includes an element body including a main surface (a mounting surface) and a main surface, a pair of terminal electrodes disposed on the main surface of the element body, and a coil that is disposed in the element body and electrically connected to the pair of terminal electrodes, wherein the element body includes at least one element body layer containing a filler and at least one element body layer having a lower dielectric constant than the element body layer between a first wiring portion and the terminal electrodes.

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.

公开(公告)号：US20200066431A1

公开(公告)日：2020-02-27

申请号：US16538465

申请日：2019-08-12

Applicant: TDK CORPORATION

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

IPC: H01F17/00 ,  H01F27/29 ,  H01F41/10 ,  H01F41/04 ,  H01F27/30

Abstract: An electronic component includes an element provided with a recess, a mounting conductor disposed in the recess, and an internal conductor disposed inside the element and connected to the mounting conductor. A first region includes a first surface. A second region includes a third surface connecting a second surface and the first surface. The second surface and the third surface overlap with the first surface as viewed in a direction in which the first surface and the second surface face each other. The internal conductor is connected to the second region away from a connection portion between the first surface and the third surface.

公开(公告)号：US20190043655A1

公开(公告)日：2019-02-07

申请号：US16046563

申请日：2018-07-26

Applicant: TDK CORPORATION

Inventor： Hajime KATO ,  Yuto SHIGA ,  Kazuya TOBITA ,  Youichi KAZUTA ,  Yuya ISHIMA ,  Satoru OKAMOTO ,  Shunji AOKI

IPC: H01F27/28

Abstract: A laminated coil component includes an element body, a coil, and a pair of conductors. The pair of conductors is disposed on the element body. Each of the pair of conductors has an L shape when viewed from the third direction. Each of the pair of conductors includes a first conductor portion and a second conductor portion. The first conductor portion is disposed on one of first side faces. The second conductor portion is disposed on a pair of end faces. The coil includes a first coil portion and a second coil portion. The first coil portion includes a first straight portion and a pair of second straight portions. The pair of second straight portions is connected to both ends of the first straight portion. The second coil portion is curved as a whole.

公开(公告)号：US20190006084A1

公开(公告)日：2019-01-03

申请号：US16021983

申请日：2018-06-28

Applicant: TDK CORPORATION

Inventor： Yuto SHIGA ,  Hajime KATO ,  Kazuya TOBITA ,  Youichi KAZUTA ,  Yuya ISHIMA ,  Satoru OKAMOTO ,  Shunji AOKI

IPC: H01F27/28 ,  H01F27/29

Abstract: A laminated electronic component includes an element body and a conductor. The element body is formed by laminating a plurality of element-body layers. The element body has a first face, a second face, and a pair of third faces. The conductor is disposed on the element body and has an L shape. The conductor has an exposed face exposed on the first face and the second face. The exposed face includes a plurality of divided regions divided by the element body. The length of each divided region in a dividing direction is longer than a distance with which the plurality of divided regions is separated from each other and longer than a distance with which the exposed face and the pair of third faces are separated from each other.