公开(公告)号：US20240120140A1

公开(公告)日：2024-04-11

申请号：US18335607

申请日：2023-06-15

Applicant: TDK CORPORATION

Inventor： Noriaki HAMACHI ,  Toshinori MATSUURA ,  Junichiro URABE ,  Kota OIKAWA ,  Yuto SHIGA ,  Youichi KAZUTA ,  Yuichi TAKUBO ,  Shunya SUZUKI ,  Xuran GUO ,  So KOBAYASHI

IPC: H01F17/00 ,  H01F27/29

CPC classification number: H01F17/0013 ,  H01F27/292 ,  H01F2017/002

Abstract: A plurality of through-hole conductors include a first through-hole conductor and a second through-hole conductor between coil conductors adjacent each other. Each of the first through-hole conductor and the second through-hole conductor includes a first end and a second end. The first end included in the second through-hole conductor is coupled to the second end included in the first through-hole conductor, and has a width larger than a width of the second end included in the first through-hole conductor. The first end included in the first through-hole conductor has a width larger than the width of the second end included in the first through-hole conductor. The second end included in the second through-hole conductor has a width smaller than the width of the first end included in the second through-hole conductor.

公开(公告)号：US20230326661A1

公开(公告)日：2023-10-12

申请号：US18187785

申请日：2023-03-22

Applicant: TDK CORPORATION

Inventor： Noriaki HAMACHI ,  Toshinori MATSUURA ,  Junichiro URABE ,  Kazuya TOBITA ,  Yuto SHIGA ,  Youichi KAZUTA ,  Yuichi TAKUBO ,  Shunya SUZUKI ,  Xuran GUO ,  So KOBAYASHI

IPC: H01F27/28

CPC classification number: H01F27/2804

Abstract: The mainline pattern and the pair of bypass patterns in the multilayer inductor can be regarded as three inductors connected in parallel in the element body. That is, in the multilayer inductor, paralleling of the inductance is realized in the element body by the mainline pattern and the pair of bypass patterns. Therefore, the inductance value of the multilayer inductor as a whole can be reduced.

公开(公告)号：US20230130960A1

公开(公告)日：2023-04-27

申请号：US17969223

申请日：2022-10-19

Applicant: TDK CORPORATION

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

IPC: H01F27/28 ,  H01F27/29

Abstract: A multilayer coil component includes an element body including a main surface, a coil disposed in the element body, and an external electrode electrically connected to the coil. The external electrode includes an underlying metal layer disposed on the element body and a plated layer in contact with a surface of the underlying metal layer. The underlying metal layer includes a main surface electrode portion exposed from the main surface. At least one recess that opens to at least a surface of the main surface electrode portion is formed in the main surface electrode portion.

公开(公告)号：US20230032681A1

公开(公告)日：2023-02-02

申请号：US17873985

申请日：2022-07-26

Applicant: TDK CORPORATION

Inventor： Junichiro URABE ,  Hajime KATO ,  Toshinori MATSUURA ,  Kenichi INOUE ,  Koutarou WATANABE

IPC: H01F27/02 ,  H01F27/34 ,  H01F27/28

Abstract: A coil component includes: a base having a pair of side wall portions separated from and facing each other and a connecting wall portion interconnecting the pair of side wall portions; and an air core coil formed by winding a wire, in which the air core coil is disposed in a groove portion formed by the pair of side wall portions and the connecting wall portion.

公开(公告)号：US20220319763A1

公开(公告)日：2022-10-06

申请号：US17706146

申请日：2022-03-28

Applicant: TDK CORPORATION

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

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

Abstract: A multilayer coil component 1 includes an element body 2, a coil 5, a first terminal electrode 3, a second terminal electrode 4, a first connection conductor 6, and a second connection conductor 7. The coil 5 includes a first coil portion 8 that has one end of the coil 5 and is disposed on a side of a main surface 2c and a second coil portion 9 that has the other end of the coil 5 and is disposed on a side of the main surface 2d. A distance L2 between the first connection conductor 6 and the second coil portion 9 is larger than a distance L1 between the first connection conductor 6 and the first coil portion 8.

公开(公告)号：US20210249183A1

公开(公告)日：2021-08-12

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

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：US20200272020A1

公开(公告)日：2020-08-27

申请号：US16799763

申请日：2020-02-24

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED ,  TDK Corporation

Inventor： Yasuhiro OHMORI ,  Masaharu DOI ,  Shintaro TAKEUCHI ,  Takehito TANAKA ,  Yoshinobu KUBOTA ,  Shinji IWATSUKA ,  Kenji ENDOU ,  Hiroki HARA ,  Toshinori MATSUURA ,  Takashi KIKUKAWA

IPC: G02F1/225 ,  G02F1/03

Abstract: An optical modulator is provided with a ridge-shaped optical waveguide formed of a dielectric thin film having electro-optic effect, a buffer layer covering the optical waveguide, a signal electrode formed on the buffer layer so as to be opposed to the optical waveguide through the buffer layer; a ground electrode formed on the buffer layer together with the signal electrode, and a dielectric film having a higher dielectric constant than air and covering at least a part of exposed surfaces of the signal electrode and ground electrode and exposed surfaces of the buffer layer.

公开(公告)号：US20150145632A1

公开(公告)日：2015-05-28

申请号：US14554990

申请日：2014-11-26

Applicant: TDK CORPORATION

Inventor： Narutoshi FUKUZAWA ,  Toshinori MATSUURA

IPC: H01F38/14

CPC classification number: H01F38/14 ,  H01F3/10

Abstract: A coil unit in which impact resistance is ensured and that has a magnetic body for heating prevention. The coil unit (the power receiving coil unit) includes a winding wire (the winding wire portion) and a magnetic body, wherein in the magnetic body, a plurality of individual pieces with two principle surfaces opposing in a thickness direction are disposed in rows and columns in a direction substantially orthogonal to the thickness direction, and the two principle surfaces are in a polygonal shape and all interior angles forming a polygon are obtuse angles (except for a right angle).

Abstract translation: 一种确保耐冲击性且具有用于防止加热的磁体的线圈单元。 线圈单元（受电线圈单元）包括绕组线（绕组线部分）和磁体，其中在磁体中，具有在厚度方向上相对的具有两个主表面的多个单独的片段排列成行， 并且两个主表面为多边形，并且形成多边形的所有内角均为钝角（除了直角）。