Coil component
US-2021335534-A1 · Oct 28, 2021 · US
Coil-type electronic component
US12573539B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12573539-B2 |
| Application number | US-202217717673-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 11, 2022 |
| Priority date | Apr 12, 2021 |
| Publication date | Mar 10, 2026 |
| Grant date | Mar 10, 2026 |
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- Title
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Abstract
Official abstract text for this publication.
A coil-type electronic component comprises an element including a magnetic element body and a coil conductor. A portion of the magnetic element body in between layers of the coil conductor adjacent to each other in an axis direction of the coil conductor includes first soft magnetic metal particles. A portion of the magnetic element body on an outer side along the axis includes second soft magnetic metal particles. The first soft magnetic metal particles have a saturation magnetization (Ms) higher than that of the second soft magnetic metal particles.
First claim
Opening claim text (preview).
What is claimed is: 1 . A coil-type electronic component comprising an element including a magnetic element body and a coil conductor, wherein a portion of the magnetic element body in between layers of the coil conductor adjacent to each other in an axis direction of the coil conductor includes first soft magnetic metal particles, a portion of the magnetic element body on an outer side along the axis includes second soft magnetic metal particles, the first soft magnetic metal particles have a saturation magnetization higher than that of the second soft magnetic metal particles, and a second inner-diameter magnetic element body occupying at least a part of an axis-center inner-diameter region of the element including the axis of the coil conductor includes the second soft magnetic metal particles. 2 . A coil-type electronic component according to claim 1 , wherein the first soft magnetic metal particles comprise an Fe—Si-based alloy. 3 . A coil-type electronic component according to claim 1 , wherein the second soft magnetic metal particles comprise an Fe—Ni-based alloy. 4 . A coil-type electronic component according to claim 1 , wherein a proportion of an area of the second inner-diameter magnetic element body in an area of the axis-center inner-diameter region is 30% or more in a cross section perpendicular to the axis of the coil conductor. 5 . A coil-type electronic component according to claim 1 , wherein the first soft magnetic metal particles have an average particle size of 1 to 6 μm. 6 . A coil-type electronic component according to claim 1 , wherein the second soft magnetic metal particles have an average particle size of 1 to 15 μm. 7 . A coil-type electronic component according to claim 1 , wherein a second outer-diameter magnetic element body occupying at least a part of an axis-center outer-diameter region of the element on an outer side in a radial direction of the coil conductor includes the second soft magnetic metal particles. 8 . A coil-type electronic component according to claim 7 , wherein a proportion of an area of the second outer-diameter magnetic element body in an area of the axis-center outer-diameter region is 15% or more in a cross section perpendicular to the axis of the coil conductor. 9 . A coil-type electronic component according to claim 1 , wherein in the axis direction of the coil conductor, lower saturation magnetization regions sandwich a higher saturation magnetization region.
Assignees
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Classifications
in the form of particles · CPC title
Fe-Si based alloys · CPC title
in the form of particles, e.g. powder (H01F1/147 takes precedence) · CPC title
by macromolecular organic substances · CPC title
by macromolecular organic substances · CPC title
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- What does patent US12573539B2 cover?
- A coil-type electronic component comprises an element including a magnetic element body and a coil conductor. A portion of the magnetic element body in between layers of the coil conductor adjacent to each other in an axis direction of the coil conductor includes first soft magnetic metal particles. A portion of the magnetic element body on an outer side along the axis includes second soft magn…
- Who is the assignee on this patent?
- Tdk Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F27/2847. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 10 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).