公开(公告)号：US12131862B2

公开(公告)日：2024-10-29

申请号：US17320402

申请日：2021-05-14

Applicant: TDK CORPORATION

Inventor： Kyosuke Inui ,  Makoto Morita ,  Takashi Kudo ,  Toshiyuki Anbo ,  Kyohei Tonoyama ,  Fuyuki Miura ,  Masanori Sugai ,  Eietsu Abe ,  Toru Tonogai ,  Yuichi Oyanagi

IPC: H01F27/29 ,  H01F27/28 ,  H01F41/06

CPC classification number: H01F27/29 ,  H01F27/2823 ,  H01F41/06

Abstract: An electronic component according to the present invention includes: a leadout electrode portion provided on an outer surface of an element main body; and a resin electrode layer formed at a part of the outer surface of the element main body and connected to the leadout electrode portion. The leadout electrode portion contains copper as a main component, and the resin electrode layer includes a conductor powder containing silver, and a resin. Further, a diffusion layer containing copper oxide and silver is formed at an interface between the leadout electrode portion and the resin electrode layer.

公开(公告)号：US12119154B2

公开(公告)日：2024-10-15

申请号：US17209761

申请日：2021-03-23

Applicant: TDK CORPORATION ,  TDK KOREA CORPORATION

Inventor： Kiyofumi Fujiwara ,  Hiroyuki Iwata ,  Eietsu Abe ,  Sepung Ki ,  Chihu An

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

CPC classification number: H01F17/045 ,  H01F27/2823 ,  H01F27/292

Abstract: The present invention provides a coil device which includes two coil elements in the same device and achieves an improved wire occupancy. The coil device includes a core including a winding core, and a winding wire part of which a first wire and a second wire are wound in a plurality of layers around the winding core, wherein the winding wire part includes a first part in which the first wire and the second wire of a same turn are wound adjacent to each other on a same layer, and a second part in which the first wire and the second wire of a same turn are wound in different layers without being adjacent to each other.