公开(公告)号：US20240321503A1

公开(公告)日：2024-09-26

申请号：US18599609

申请日：2024-03-08

Applicant: TDK CORPORATION

Inventor： Masashi Shimoyasu ,  Takahiro Yata ,  Masataka Yamamoto ,  Hiroyuki Abe ,  Daiki Saito ,  Akihiko Oide

IPC: H01F27/23 ,  H01F17/00 ,  H01F17/02

CPC classification number: H01F27/23 ,  H01F17/0013 ,  H01F17/02 ,  H01F2017/002

Abstract: An inductor includes: an element body having a pair of end surfaces facing each other, and a side surface extending in a facing direction of the pair of end surfaces to connect the pair of end surfaces; and a through conductor disposed inside the element body and extending in the facing direction. The element body includes a first portion surrounding the through conductor, and a second portion positioned outward of the first portion, when viewed in the facing direction. The first portion is disposed spaced from the side surface. The first portion has a porosity higher than a porosity of the second portion.

公开(公告)号：US20240312687A1

公开(公告)日：2024-09-19

申请号：US18599410

申请日：2024-03-08

Applicant: TDK CORPORATION

Inventor： Takahiro Yata ,  Masashi Shimoyasu ,  Masataka Yamamoto ,  Hiroyuki Abe ,  Daiki Saito ,  Akihiko Oide

IPC: H01F17/00 ,  H01F17/04

CPC classification number: H01F17/0013 ,  H01F17/04 ,  H01F2017/0073

Abstract: A multilayer inductor includes: an element body having a pair of end surfaces facing each other, and a side surface extending in a facing direction of the pair of end surfaces in such a way as to connect the pair of end surfaces; and a through conductor disposed inside the element body and extending in the facing direction. The element body includes a first portion surrounding the through conductor and a second portion positioned outward of the first portion, when viewed in the facing direction. The first portion is disposed spaced from the side surface. The first portion and the second portion have different magnetic permeabilities from each other.