公开(公告)号：US20220310301A1

公开(公告)日：2022-09-29

申请号：US17696169

申请日：2022-03-16

Applicant: TDK Corporation

Inventor： Akihiko OIDE ,  Makoto YOSHINO ,  Tomoki OKADA ,  Seiji OSADA ,  Yuuki OKAZAKI ,  Takeshi SASAKI ,  Mitsuru ITO ,  Kenta SASAKI ,  Kazuhiro EBINA ,  Takashi ABE ,  Hiroshi ONO

IPC: H01F27/08 ,  H01F27/29 ,  H01F27/28

Abstract: In the multi-layer inductor, all of the plurality of through conductors are not aligned in a straight line, and the distance between the through conductors can be sufficiently kept in the element body having a predetermined dimensional standard. Therefore, the through conductor as a heat source is apart from each other, and the heat of the through conductor can be efficiently radiated to the outside of the element body.

公开(公告)号：US20220277879A1

公开(公告)日：2022-09-01

申请号：US17666170

申请日：2022-02-07

Applicant: TDK CORPORATION

Inventor： Yusuke NAGAI ,  Hidekazu SATO ,  Kazuhiro EBINA ,  Kunihiko KAWASAKI ,  Takahiro SATO ,  Kouichi KAKUDA ,  Yuya ISHIMA ,  Shinichi KONDO ,  Shinichi SATO ,  Masaki TAKAHASHI

IPC: H01F17/00 ,  H01F27/29

Abstract: In a multilayer coil component, first and second conductor patterns respectively have parallel parts that overlap in a lamination direction and non-parallel parts that do not overlap. The parallel parts of the first and second conductor patterns of one set are interconnected by a first through hole. The non-parallel parts of the first and second conductor patterns of sets adjacent to each other in the lamination direction are interconnected by a second through hole.

公开(公告)号：US20230317351A1

公开(公告)日：2023-10-05

申请号：US18188534

申请日：2023-03-23

Applicant: TDK CORPORATION

Inventor： Masashi SHIMOYASU ,  Yoji TOZAWA ,  Akihiko OIDE ,  Daiki KATO ,  Midori KISHIMOTO ,  Satoshi TAKASU ,  Yo SAITO ,  Rui TAKAHASHI ,  Kenta SASAKI ,  Makoto YOSHINO ,  Kazuhiro EBINA

IPC: H01F27/28 ,  H01F27/29

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

Abstract: An electronic component has an element body; and an external electrode having a main body portion covering at least the second surface and a first wrapping-around portion wrapping around the third surface in the element body. The wrapping-around portion of the external electrode has a first part having a first distance, a second part having a second distance, a third part having a third distance, a fourth part having a fourth distance, and a fifth part having a fifth distance in the second direction in order from one side to the other side in the first direction. The second distance is longer than the first distance and the third distance. The fourth distance is longer than the third distance and the fifth distance.

公开(公告)号：US20230230737A1

公开(公告)日：2023-07-20

申请号：US18151070

申请日：2023-01-06

Applicant: TDK CORPORATION

Inventor： Yusuke NAGAI ,  Kazuhiro EBINA ,  Kunihiko KAWASAKI ,  Shinichi KONDO ,  Kouichi KAKUDA ,  Shinichi SATO ,  Keito YASUDA

IPC: H01F5/00 ,  H01F1/20

CPC classification number: H01F5/003 ,  H01F1/20

Abstract: A multilayer coil component includes: an element body including a plurality of magnetic layers that includes soft magnetic metal particles and is laminated in a first direction; and a coil disposed in the element body. The coil includes a plurality of coil conductors electrically connected to each other. The plurality of magnetic layers includes a first magnetic layer and a second magnetic layer laminated between two coil conductors adjacent to each other in the first direction. An average particle diameter of soft magnetic metal particles included in the second magnetic layer is larger than an average particle diameter of soft magnetic metal particles included in the first magnetic layer.

公开(公告)号：US20230125854A1

公开(公告)日：2023-04-27

申请号：US17970182

申请日：2022-10-20

Applicant: TDK CORPORATION

Inventor： Yusuke NAGAI ,  Kazuhiro EBINA ,  Takahiro SATO ,  Kunihiko KAWASAKI ,  Shinichi SATO ,  Seiichi NAKAGAWA ,  Kouichi KAKUDA ,  Mitsuharu KOIKE ,  Keito YASUDA ,  Takato SASAKI

IPC: H01F5/04 ,  H01F1/14

Abstract: A stacked coil component includes: an element body, a coil disposed inside the element body; and a first outer electrode and a second outer electrode which are disposed in the element body. Each of the first outer electrode and the second outer electrode includes an electrode portion which includes a joining surface joined to the element body, and a plating surface opposite to the joining surface and is formed by plating, and of which at least a part is embedded in the element body.

公开(公告)号：US20220181073A1

公开(公告)日：2022-06-09

申请号：US17523202

申请日：2021-11-10

Applicant: TDK CORPORATION

Inventor： Yusuke NAGAI ,  Kazuhiro EBINA ,  Kouichi KAKUDA ,  Kunihiko KAWASAKI ,  Shinichi KONDO ,  Yuya ISHIMA ,  Masaki TAKAHASHI ,  Takahiro SATO ,  Keito YASUDA ,  Shingo HATTORI

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

Abstract: In a multilayer coil component, a coil is configured by electrically connecting coil conductors respectively provided in magnetic body layers constituting an element body and metal magnetic particles have a normal particle having an ellipsoidal shape and flat particles having an ellipsoidal shape flatter in a thickness direction than the normal particle. A plurality of the normal particles and at least one of the flat particles disposed such that a surface (reference surface) including a major axis direction orthogonal to the thickness direction and a minor axis direction is along the forming surface of the coil conductor in the magnetic body layer are arranged in the lamination direction of the magnetic body layers between the coil conductors.

公开(公告)号：US20220108835A1

公开(公告)日：2022-04-07

申请号：US17490411

申请日：2021-09-30

Applicant: TDK CORPORATION

Inventor： Yusuke NAGAI ,  Takashi SUZUKI ,  Kazuhiro EBINA ,  Kunihiko KAWASAKI ,  Shinichi KONDO ,  Yuya ISHIMA ,  Shinichi SATO ,  Seiichi NAKAGAWA ,  Keito YASUDA ,  Ryuichi WADA

IPC: H01F27/29 ,  H01F1/28

Abstract: A multilayer coil component includes: an element body containing a plurality of metal magnetic particles; a coil disposed in the element body; and an external electrode disposed on a surface of the element body and electrically connected to the coil. At least a part of a void part between the metal magnetic particles in the element body is filled with a first resin, the external electrode has a resin electrode containing a second resin and a conductor powder dispersed in the second resin, and the second resin connected from the resin electrode extends into the element body.

公开(公告)号：US20200234877A1

公开(公告)日：2020-07-23

申请号：US16843228

申请日：2020-04-08

Applicant: TDK CORPORATION

Inventor： Yuya OSHIMA ,  Makoto YOSHINO ,  Yoji TOZAWA ,  Junichi OTSUKA ,  Kazuo IWAI ,  Yohei TADAKI ,  Shinichi KONDO ,  Kazuhiro EBINA ,  Mamoru KAWAUCHI

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

Abstract: A method of manufacturing a laminated coil component is a method of manufacturing a laminated coil component provided with a laminate obtained by laminating a coil conductor forming a spiral coil and an insulator layer. The method of manufacturing a laminated coil component includes a step of providing a conductor pattern configured to become a coil conductor on a green sheet configured to become an insulator layer, and a step of laminating a plurality of green sheets provided with the conductor pattern. The conductor pattern includes a pair of first side surfaces opposed to each other in an orthogonal direction orthogonal to a laminating direction of the green sheet. At the step of laminating a plurality of green sheets, a depression is formed on at least one of the pair of first side surfaces.

公开(公告)号：US20230230738A1

公开(公告)日：2023-07-20

申请号：US18097556

申请日：2023-01-17

Applicant: TDK Corporation

Inventor： Yusuke NAGAI ,  Kazuhiro EBINA ,  Kunihiko KAWASAKI ,  Shinichi KONDO ,  Shinichi SATO ,  Seiichi NAKAGAWA ,  Mitsuharu KOIKE ,  Takato SASAKI ,  Youhei IIDA

IPC: H01F5/04 ,  H01F5/06 ,  H01F27/29 ,  H01F27/32 ,  H01F1/20

CPC classification number: H01F5/04 ,  H01F5/06 ,  H01F27/292 ,  H01F27/323 ,  H01F1/20

Abstract: A coil component includes an element body, a coil and a first electrode part. The element body includes a main surface which is used as a mounting surface. The coil is disposed in the element body. The first electrode part is embedded in the element body and electrically connected to the coil. The first electrode part includes a first surface exposed from the main surface and a second surface opposing the first surface. An area of the first surface is larger than an area of the second surface when viewed from a direction orthogonal to the first surface.

公开(公告)号：US20230072794A1

公开(公告)日：2023-03-09

申请号：US17939027

申请日：2022-09-07

Applicant: TDK CORPORATION

Inventor： Yusuke NAGAI ,  Kazuhiro EBINA ,  Takahiro SATO ,  Kunihiko KAWASAKI ,  Shinichi SATO ,  Shinichi KONDO ,  Kouichi KAKUDA ,  Yuya ISHIMA ,  Kosuke ITO

IPC: H01F17/00 ,  H01F27/29 ,  H01F3/08

Abstract: A multilayer coil component includes: an element body formed by stacking a magnetic body layer containing a plurality of metal magnetic particles of a soft magnetic material; a first coil disposed in the element body and configured to include a plurality of first coil conductors; a second coil disposed in the element body and configured to include a plurality of second coil conductors; a first external electrode to which one end portion of each of the first coil and the second coil is connected; and a second external electrode to which the other end portion of each of the first coil and the second coil is connected.