公开(公告)号：US12272487B2

公开(公告)日：2025-04-08

申请号：US17177421

申请日：2021-02-17

Applicant: TDK CORPORATION

Inventor： Hajime Kato ,  Junichiro Urabe ,  Yuto Shiga ,  Kazuya Tobita ,  Youichi Kazuta ,  Noriaki Hamachi ,  Toshinori Matsuura ,  Yuichi Takubo ,  Munehiro Takaku

IPC: H01F27/28 ,  H01F17/00 ,  H01F17/02 ,  H01F27/29

Abstract: A multilayer coil component includes an element body, a coil, and a terminal electrode. The element body includes a first main face, second main face, first end face, second end face, first side face and second side face. The terminal electrode is connected to the coil. The terminal electrode includes a main-face electrode portion provided on the first main face. The coil includes a plurality of coil conductors. The plurality of coil conductors includes a first coil conductor disposed closest to the first main face to oppose to the main-face electrode portion and a second coil conductor disposed closer to the second main face than the first coil conductor. The first coil conductor has a width narrower than a width of the second coil conductor. The first coil conductor has an aspect ratio higher than an aspect ratio of the second coil conductor.

公开(公告)号：US12040122B2

公开(公告)日：2024-07-16

申请号：US16391361

申请日：2019-04-23

Applicant: TDK CORPORATION

Inventor： Youichi Kazuta ,  Hajime Kato ,  Makoto Yoshino ,  Kazuya Tobita ,  Yuto Shiga ,  Noriaki Hamachi

IPC: H01F27/28 ,  H01F27/29

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

Abstract: A multilayer coil component includes an element assembly that has a first surface and second surfaces and extending in a direction orthogonal to the first surface, and terminal electrodes that has first electrode parts extending in a direction orthogonal to the first surface along the second surfaces. At least a portion of the first electrode parts of the terminal electrodes is disposed inside the element assembly. The element assembly is present between imaginary lines extending in a direction parallel to the first surface toward the second surfaces from a position farthest from the first surface in a direction orthogonal to the first surface in the first electrode parts positioned inside the element assembly and the first surface.

公开(公告)号：US11830664B2

公开(公告)日：2023-11-28

申请号：US16746178

申请日：2020-01-17

Applicant: TDK Corporation

Inventor： Hajime Kato ,  Hidekazu Sato ,  Makoto Yoshino ,  Kazuya Tobita ,  Yuto Shiga ,  Youichi Kazuta ,  Noriaki Hamachi

IPC: H01F27/29 ,  H01F41/04 ,  H01F27/28 ,  H01F17/00

CPC classification number: H01F27/292 ,  H01F17/0013 ,  H01F27/2804 ,  H01F41/043 ,  H01F2027/2809

Abstract: A multilayer coil component 1 includes an element body 2, a coil 8, and a terminal electrode 4 and a terminal electrode 5. Each of the terminal electrode 4 and the terminal electrode 5 is disposed over at least the end surfaces 2a and 2b and a main surface 2d. Each of the terminal electrode 4 and the terminal electrode 5 and at least a part of the coil 8 overlap when viewed from the facing direction of the pair of side surfaces 2e and 2f. Each of the terminal electrode 4 and the terminal electrode 5 and the coil 8 do not overlap when viewed from the facing direction of the pair of end surfaces 2a and 2b.

公开(公告)号：US20230307167A1

公开(公告)日：2023-09-28

申请号：US18166347

申请日：2023-02-08

Applicant: TDK CORPORATION

Inventor： Munehiro TAKAKU ,  Nobuyuki Okuzawa ,  Kazuya Tobita ,  Teruhiro Mitsuyasu

IPC: H01F17/00 ,  H01F27/29

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

Abstract: Provided is a multilayer coil component in which a position of a boundary between a first portion and a third portion in a second wiring portion located closer to a side surface is located closer to an end surface in a first direction than a position of a boundary between a first portion and a third portion in a second wiring portion located closer to a side surface, and a position of a boundary between a second portion and a third portion in a second wiring portion located closer to the side surface is located closer to an end surface in the first direction than a position of a boundary between a second portion and a third portion in a second wiring portion located closer to the side surface.

公开(公告)号：US11735347B2

公开(公告)日：2023-08-22

申请号：US16901165

申请日：2020-06-15

Applicant: TDK CORPORATION

Inventor： Yuto Shiga ,  Hajime Kato ,  Kazuya Tobita ,  Youichi Kazuta ,  Noriaki Hamachi ,  Makoto Yoshino

IPC: H01F5/00 ,  H01F17/00 ,  H01F27/29 ,  H01F41/04 ,  H01F27/32

CPC classification number: H01F17/0013 ,  H01F27/29 ,  H01F27/323 ,  H01F41/043

Abstract: A pair of terminal electrodes 4 and 5 have electrode parts 4a and 5a and electrode parts 4b and 5b when viewed from a stacking direction, respectively. A plurality of connection conductors are disposed at positions not overlapping a plurality of coil conductors when viewed from the stacking direction. At least two of the plurality of connection conductors are disposed in a first region A1 or a second region A2 between the terminal electrodes 4 and 5 and an outer edge 9a of a coil 9 when viewed from the stacking direction. The first region A1 and the second region A2 overlap the electrode parts 4a and 5a when viewed from the facing direction of a pair of end surfaces 2a and 2b and overlap the electrode parts 4b and 5b when viewed from the facing direction of a pair of main surfaces 2c and 2d.

公开(公告)号：US11610709B2

公开(公告)日：2023-03-21

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 ,  H01F27/30 ,  H01F41/04 ,  H01F41/10

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：US11569020B2

公开(公告)日：2023-01-31

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 ,  H01F17/00

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：US11217376B2

公开(公告)日：2022-01-04

申请号：US16932890

申请日：2020-07-20

Applicant: TDK CORPORATION

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

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