公开(公告)号：US20230307163A1

公开(公告)日：2023-09-28

申请号：US18166071

申请日：2023-02-08

Applicant: TDK Corporation

Inventor： Munehiro TAKAKU ,  Nobuyuki OKUZAWA ,  Kazuya TOBITA ,  Teruhiro MITSUYASU

IPC: H01F5/04 ,  H01F27/29 ,  H01F27/28 ,  H01F41/10

CPC classification number: H01F5/04 ,  H01F27/292 ,  H01F27/2804 ,  H01F41/10

Abstract: A multilayer coil component 1 includes an element body, a first terminal electrode, a second terminal electrode, a coil, a first connecting conductor, and a second connecting conductor, the coil includes first wiring portions, second wiring portions, and pillar portions, and lengths of the pillar portions in a first direction are longer than lengths of the pillar portions in a third direction.

公开(公告)号：US20220130596A1

公开(公告)日：2022-04-28

申请号：US17504344

申请日：2021-10-18

Applicant: TDK Corporation

Inventor： Nobuyuki OKUZAWA ,  Kazuhiko ITO ,  Munehiro TAKAKU ,  Junichiro URABE

IPC: H01F27/28 ,  H01F27/29 ,  H01F27/32 ,  H01F41/12

Abstract: Disclosed herein is a coil component that includes a coil pattern embedded in a resin body. The resin body includes a winding core area surrounded by the coil pattern and having a first surface and a substantially flat second surface different in the circumferential direction position from the first surface, and a first surrounding area covering the first surface of the winding core area. The coil pattern includes first sections extending along the first surface of the winding core area and second sections extending along the second surface of the winding core area. One ends of the first sections are connected respectively to their corresponding one ends of the second sections. The other ends of the first sections are connected respectively to their corresponding other ends of the second sections.

公开(公告)号：US20230230757A1

公开(公告)日：2023-07-20

申请号：US18153690

申请日：2023-01-12

Applicant: TDK CORPORATION

Inventor： Nobuyuki OKUZAWA ,  Munehiro TAKAKU ,  Kazuya TOBITA ,  Teruhiro MITSUYASU

IPC: H01F27/29 ,  H01F27/28

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

Abstract: A laminated coil component includes an element body, a first terminal electrode and a second terminal electrode, and a coil, the coil includes a first wiring portion, a second wiring portion, and a pillar portion, the pillar portion has a first pillar member and a second pillar member alternately laminated in a second direction, and an area of a first surface and an area of a second surface of the first pillar member are larger than an area of a first surface and an area of a second surface of the second pillar member, or smaller than the area of the first surface and the area of the second surface of the second pillar member.

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：US20230307164A1

公开(公告)日：2023-09-28

申请号：US18166262

申请日：2023-02-08

Applicant: TDK Corporation.

Inventor： Munehiro TAKAKU ,  Nobuyuki OKUZAWA ,  Kazuya TOBITA ,  Teruhiro MITSUYASU

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

CPC classification number: H01F5/04 ,  H01F27/2804 ,  H01F27/292

Abstract: Provided is a multilayer coil component including an element body, a first terminal electrode, a second terminal electrode, a coil, a first connecting conductor, and a second connecting conductor, wherein a length of each of the first connecting conductor and the second connecting conductor in a first direction is longer than lengths of pillar portions connected to the first connecting conductor and the second connecting conductor in the first direction and equal to or less than lengths of the first terminal electrode and the second terminal electrode in the first direction.

公开(公告)号：US20230207182A1

公开(公告)日：2023-06-29

申请号：US17969339

申请日：2022-10-19

Applicant: TDK CORPORATION

Inventor： Nobuyuki OKUZAWA ,  Kazuya TOBITA ,  Munehiro TAKAKU ,  Teruhiro MITSUYASU

IPC: H01F27/28 ,  H01F27/32 ,  H01F27/29 ,  H01F27/02

CPC classification number: H01F27/2823 ,  H01F27/327 ,  H01F27/292 ,  H01F27/022

Abstract: A multilayer coil component includes an element body including a main surface (a mounting surface) and a main surface, a pair of terminal electrodes disposed on the main surface of the element body, and a coil that is disposed in the element body and electrically connected to the pair of terminal electrodes, wherein the element body includes at least one element body layer containing a filler and at least one element body layer having a lower dielectric constant than the element body layer between a first wiring portion and the terminal electrodes.

公开(公告)号：US20230230756A1

公开(公告)日：2023-07-20

申请号：US18153659

申请日：2023-01-12

Applicant: TDK CORPORATION

Inventor： Nobuyuki OKUZAWA ,  Munehiro TAKAKU ,  Kazuya TOBITA ,  Teruhiro MITSUYASU

IPC: H01F27/29 ,  H01F27/28 ,  H01F27/24

CPC classification number: H01F27/292 ,  H01F27/2804 ,  H01F27/24 ,  H01F2027/2809

Abstract: A laminated coil component includes an element body, a first terminal electrode and a second terminal electrode, and a coil, the coil includes a plurality of first wiring portions disposed on a main surface side and disposed side by side in a third direction, a plurality of second wiring portions disposed on a mounting surface side and disposed side by side in the third direction, and a plurality of first pillar portions and second pillar portions that extend in a second direction and connect the first wiring portion with the second wiring portion which correspond to each other, and a width of the second wiring portion in the third direction is smaller than a width of the first wiring portion in the third direction.

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：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.

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.