公开(公告)号：US11211192B2

公开(公告)日：2021-12-28

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 ,  H01F17/00 ,  H01F27/29

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：US10650950B2

公开(公告)日：2020-05-12

申请号：US15988101

申请日：2018-05-24

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.

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：US11915852B2

公开(公告)日：2024-02-27

申请号：US16922533

申请日：2020-07-07

Applicant: TDK CORPORATION

Inventor： Yuya Ishima ,  Shinichi Kondo ,  Kosuke Ito ,  Shingo Hattori ,  Kazuya Tobita ,  Noriaki Hamachi ,  Atsushi Moriya

IPC: H01F5/00 ,  H01F27/28 ,  H01F41/04 ,  H01F27/29

CPC classification number: H01F27/2804 ,  H01F27/29 ,  H01F41/043 ,  H01F2027/2809

Abstract: An electronic component according to an aspect of the present disclosure includes an element body and a terminal electrode. The element body includes an outer surface provided with a depression. The terminal electrode is disposed on the element body. The terminal electrode includes a first electrode portion and a second electrode portion. The first electrode portion is disposed in the depression. The second electrode portion protrudes from the depression. The second electrode portion is thicker than the first electrode portion.

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.

公开(公告)号：US09573837B2

公开(公告)日：2017-02-21

申请号：US15015420

申请日：2016-02-04

Applicant: TDK CORPORATION

Inventor： Shusaku Umemoto ,  Takashi Suzuki ,  Masaki Takahashi ,  Hidekazu Sato ,  Yukari Akita ,  Kazuya Tobita ,  Shinichi Kondo

IPC: C03C8/22 ,  C03C8/14 ,  H01F27/28 ,  C03C3/089 ,  H01F17/00 ,  H01F27/29 ,  C03C3/091 ,  C03C3/093 ,  C03C14/00 ,  C04B35/00 ,  C03B19/06

CPC classification number: C03C3/089 ,  C03B19/06 ,  C03C3/091 ,  C03C3/093 ,  C03C8/22 ,  C03C14/004 ,  C04B35/00 ,  H01F17/0013 ,  H01F27/292

Abstract: A glass ceramic composition of the present invention includes a main component composed of a first glass, a second glass, Al2O3, and SiO2. The first glass is SiO2—K2O—B2O3 based glass. The second glass is MO—SiO2—Al2O3—B2O3 based glass (“M” is an alkaline-earth metal) and/or CaO—SiO2—Al2O3—ZnO—ZrO2—B2O3 based glass. In case that the total amount of the main component is 100 wt %, the main component contains the second glass of 12 to 30 wt %, the first and second glass of 40 to 56 wt % in total, and further Al2O3 of 7 to 18 wt %.

Abstract translation: 本发明的玻璃陶瓷组合物包括由第一玻璃，第二玻璃，Al 2 O 3和SiO 2构成的主要成分。 第一块玻璃是SiO2-K2O-B2O3基玻璃。 第二玻璃是MO-SiO2-Al2O3-B2O3基玻璃（“M”是碱土金属）和/或CaO-SiO2-Al2O3-ZnO-ZrO2-B2O3基玻璃。 在主成分的总量为100重量％的情况下，主成分含有12〜30重量％的第二玻璃，第一玻璃和第二玻璃的总量为40〜56重量％，进一步为7〜18的Al 2 O 3 重量％。

公开(公告)号：US20250125082A1

公开(公告)日：2025-04-17

申请号：US18889765

申请日：2024-09-19

Applicant: TDK Corporation

Inventor： Munehiro TAKAKU ,  Kazuya Tobita ,  Shinnosuke Suzuki

IPC: H01F27/28 ,  H01F27/29 ,  H01F27/30

Abstract: In the laminated coil component, in the third direction, the pair of the connecting portions are interposed between the pair of the end portions of the coil conductor and the pair of the terminal electrode. Since each of the connecting portions has the elongated portion extending from the overlapping portion overlapping the end portion of the coil conductor, the enlargement of the contact area with the terminal electrode is achieved, and the high connection reliability between the coil conductor and the terminal electrode is achieved.