Title:
Coil parts
Document Type and Number:
Japanese Patent JP6345146
Kind Code:
B2
Abstract:
In an embodiment, a coil component includes a magnetic body, and an internal conductor 21 having a center axis and formed in a spiral shape; wherein the internal conductor 21 is embedded in the magnetic body; in a cross sectional view of a plane that includes the center axis extending in the vertical direction, wherein a conductor region part 11 positioned between the adjacent windings of the spiral shape has a higher oxygen content than that of a core part 12 including the center axis and positioned on the inner side of the windings of the spiral shape. the magnetic body is constituted by iron-based soft magnetic grains and oxide film of at least one type of element that oxidizes more easily than iron, which oxide film bonds at least partly the iron-based soft magnetic grains.
Inventors:
Takeoka Shinsuke
Akiko Yamaguchi
Kenji Otake
Akiko Yamaguchi
Kenji Otake
Application Number:
JP2015073481A
Publication Date:
June 20, 2018
Filing Date:
March 31, 2015
Export Citation:
Assignee:
TAIYO YUDEN CO.,LTD.
International Classes:
H01F17/04; H01F17/00; H01F41/02; H01F41/04
Domestic Patent References:
| JP2004281778A | ||||
| JP20169859A |
Attorney, Agent or Firm:
Hiroyuki Kurihara