公开(公告)号：US20220293333A1

公开(公告)日：2022-09-15

申请号：US17690489

申请日：2022-03-09

Applicant: TDK CORPORATION

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

IPC: H01F27/29 ,  H01F17/04 ,  H01F27/28 ,  H01F41/10

Abstract: A coil component includes an exterior body, a coil, and a pair of terminal electrodes. The coil is disposed inside the exterior body. The pair of terminal electrodes are electrically connected to the coil and are disposed on the exterior body. The exterior body includes a first portion that covers the coil and is made of a resin, and a second portion including a side surface on which the pair of terminal electrodes are disposed. The second portion includes a material having a relative permittivity lower than a relative permittivity of the resin and is disposed between the coil and the pair of terminal electrodes.

公开(公告)号：US20220246346A1

公开(公告)日：2022-08-04

申请号：US17590888

申请日：2022-02-02

Applicant: TDK CORPORATION

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

IPC: H01F27/29 ,  H01F27/32 ,  H01F41/04 ,  H01F27/28

Abstract: A multilayer coil component includes: an element body including a plurality of insulator layers that are laminated; a coil; and a pair of external terminals. The element body has a rectangular parallelepiped shape. The element body includes a pair of main surfaces opposing each other in a first direction, a pair of end surfaces opposing each other in a second direction, and a pair of side surfaces opposing each other in a third direction. The pair of external terminals are separated from each other in the second direction. The pair of external terminals are embedded in the element body apart from the pair of end surfaces and the pair of side surfaces. Each of the pair of external terminals includes an exposed surface exposed from one of the main surfaces and an inner surface disposed in the element body. The inner surface includes a depression or a protrusion.

公开(公告)号：US20210280362A1

公开(公告)日：2021-09-09

申请号：US17191017

申请日：2021-03-03

Applicant: TDK CORPORATION

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

IPC: H01F27/29 ,  H01F17/00

Abstract: A multilayer coil component includes an element body, a coil disposed in the element body, and a terminal electrode disposed on the element body. The element body has a first side face and a second side face, a first end face and a second end face, and a first main face and a second main face. The terminal electrode includes a first electrode portion and a second electrode portion. The first electrode portion has a first exposed face exposed on the first main face. The second electrode portion has a second exposed face exposed on the first end face. The first exposed face and the second exposed face are adjacent to each other interposing a ridge portion. The first exposed face is separated from an outer edge of the first main face. The second exposed face is separated from an outer edge of the first end face.

公开(公告)号：US20210272743A1

公开(公告)日：2021-09-02

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: H01F27/29 ,  H01F17/00 ,  H01F17/02

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：US20210020357A1

公开(公告)日：2021-01-21

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：US20200350107A1

公开(公告)日：2020-11-05

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

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：US20200234873A1

公开(公告)日：2020-07-23

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 ,  H01F27/28 ,  H01F41/04

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：US20200234865A1

公开(公告)日：2020-07-23

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 ,  H01G4/30 ,  H01F27/29 ,  H01G4/12

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：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：US20240339259A1

公开(公告)日：2024-10-10

申请号：US18743760

申请日：2024-06-14

Applicant: TDK Corporation

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

IPC: H01F27/29 ,  H01F27/28

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 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.