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：US11605498B2

公开(公告)日：2023-03-14

申请号：US16930692

申请日：2020-07-16

Applicant: TDK CORPORATION

Inventor： Youichi Kazuta ,  Kazuya Tobita ,  Yuto Shiga ,  Noriaki Hamachi

IPC: H01F27/29 ,  H01F17/00

Abstract: A multilayer coil component includes an element body, a coil, and a pair of terminal electrodes. Each of the pair of terminal electrodes is formed by a plurality of electrode layers having different shapes being stacked in a stacking direction and is exposed on end surfaces, a main surface, and a pair of side surfaces. One electrode part of the terminal electrodes exposed on the side surfaces of the element body and formed by one of the electrode layers has an overlapping part overlapping at least a part of the other electrode part formed by another of the electrode layers adjacent to the one electrode layer in the stacking direction and a non-overlapping part not overlapping the other electrode part when viewed from the stacking direction.

公开(公告)号：US11749445B2

公开(公告)日：2023-09-05

申请号：US17531367

申请日：2021-11-19

Applicant: TDK CORPORATION

Inventor： Hajime Kato ,  Yuto Shiga ,  Kazuya Tobita ,  Youichi Kazuta ,  Yuya Ishima ,  Satoru Okamoto ,  Shunji Aoki

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

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

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：US11651886B2

公开(公告)日：2023-05-16

申请号：US16721078

申请日：2019-12-19

Applicant: TDK CORPORATION

Inventor： Youichi Kazuta ,  Kazuya Tobita ,  Yuto Shiga ,  Noriaki Hamachi

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

CPC classification number: H01F17/0013 ,  H01F27/292 ,  H01F27/32

Abstract: A multilayer coil component 1 includes an element 2 having a plurality of stacked insulator layers 6 and a coil 8 disposed in the element 2. The coil 8 has a plurality of coil conductors and a connection conductor interconnecting one of the coil conductors and another of the coil conductors. A plurality of the connection conductors are spaced apart only in a direction intersecting with an extension direction of the coil conductors at a position of the connection by the connection conductor.

公开(公告)号：US10825596B2

公开(公告)日：2020-11-03

申请号：US16840732

申请日：2020-04-06

Applicant: TDK CORPORATION

Inventor： Shunji Aoki ,  Yuya Ishima ,  Hajime Kato ,  Yuto Shiga ,  Kazuya Tobita ,  Youichi Kazuta ,  Satoru Okamoto

IPC: H01F17/00 ,  H01G4/012 ,  H01F27/29 ,  H01G4/12 ,  H01G4/30 ,  H01G4/005

Abstract: A laminated electronic component includes an element body and a pair of conductors. The element body is formed by laminating a plurality of element-body layers in a first direction. The pair of conductors is formed by laminating a plurality of conductor layers in the first direction. The pair of conductors is provided to the element body in such a way as to be separated from each other in a second direction orthogonal to the first direction. At a cross section orthogonal to the first direction, the pair of conductors has an uneven portion and the element body has an uneven portion engaged with the uneven portion of the pair of conductors.

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：US20240266097A1

公开(公告)日：2024-08-08

申请号：US18426523

申请日：2024-01-30

Applicant: TDK Corporation

Inventor： Xuran GUO ,  Youichi Kazuta ,  Kazuya Tobita ,  Yuto Shiga ,  Yuichi Takubo ,  So Kobayashi ,  Hiroto Komatsu ,  Toru Yaginuma

IPC: H01F5/04

CPC classification number: H01F5/04

Abstract: The electronic component includes an element body, a first external electrode, and a second external electrode. The first external electrode and the second external electrode are disposed on a principal surface and are separated from each other in a first direction. The first external electrode includes a first region and a second region. The first region includes an end edge that opposes the second external electrode in the first direction and is located inside the element body. The second region is continuous with the first region and is exposed from the principal surface. The second external electrode includes a third region and a fourth region. The third region includes an edge that opposes the first region in the first direction and is located inside the element body. The fourth region is continuous with the third region and is exposed from the principal surface.

公开(公告)号：US11978580B2

公开(公告)日：2024-05-07

申请号：US16696274

申请日：2019-11-26

Applicant: TDK CORPORATION

Inventor： Kazuya Tobita ,  Yuto Shiga ,  Youichi Kazuta ,  Noriaki Hamachi

IPC: H01F27/29 ,  H01F27/28 ,  H01F27/34 ,  H01F27/32

CPC classification number: H01F27/2852 ,  H01F27/292 ,  H01F27/34 ,  H01F27/323

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：US11594366B2

公开(公告)日：2023-02-28

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：US11488761B2

公开(公告)日：2022-11-01

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 ,  H01F5/04 ,  H01F5/00

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.