Iron powder, method for producing same, method for producing precursor, molded article for inductor, and inductor
US-2019210104-A1 · Jul 11, 2019 · US
Composite magnetic body
US11456097B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11456097-B2 |
| Application number | US-201916295074-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 7, 2019 |
| Priority date | Mar 28, 2018 |
| Publication date | Sep 27, 2022 |
| Grant date | Sep 27, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The present invention provides a composite magnetic body comprising metal particles containing Fe or Fe and Co as a main component and a resin, wherein an average major axis diameter of the metal particles is 30 to 500 nm, an average of the aspect ratios of the metal particles is 1.5 to 10, and a CV value of the aspect ratios is 0.40 or less.
First claim
Opening claim text (preview).
What is claimed is: 1. A composite magnetic body comprising: metal particles containing Fe or Fe and Co as a main component; and a resin, wherein an average major axis diameter of the metal particles is 30 to 500 nm, an average of the aspect ratios of the metal particles is 1.5 to 10, a CV value of the aspect ratios is 0.40 or less, and the metal particle comprises a metal core portion and a metal oxide film coating the metal core portion. 2. A high frequency electronic component comprising the composite magnetic body according to claim 1 .
Assignees
Inventors
Classifications
Oxides (H01F1/36 and H01F1/38 take precedence) · CPC title
mixtures of metallic and non-metallic particles; metallic particles having oxide skin · CPC title
- H01F1/28Primary
dispersed or suspended in a bonding agent · CPC title
mixtures of metallic and non-metallic particles; metallic particles having oxide skin · CPC title
- H01F1/147Primary
Alloys characterised by their composition {(treatment thereof for enhancing their electromagnetic properties C21D8/12)} · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11456097B2 cover?
- The present invention provides a composite magnetic body comprising metal particles containing Fe or Fe and Co as a main component and a resin, wherein an average major axis diameter of the metal particles is 30 to 500 nm, an average of the aspect ratios of the metal particles is 1.5 to 10, and a CV value of the aspect ratios is 0.40 or less.
- Who is the assignee on this patent?
- Tdk Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F1/28. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 27 2022 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).