Coil component and method of manufacturing the same
US-2024170199-A1 · May 23, 2024 · US
Soft-magnetic metal powder, production method for same, and resin composition
US2026074099A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2026074099-A1 |
| Application number | US-202319106386-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 28, 2023 |
| Priority date | Aug 31, 2022 |
| Publication date | Mar 12, 2026 |
| Grant date | — |
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.
A soft magnetic metal powder contains 5.0% by weight or more and 10.0% by weight or less of B, the balance being one or more metals selected from Fe, Ni, and Co. The soft magnetic metal powder has an average primary particle size of 0.05 μm or more and 1.5 μm or less, a coefficient of variation (standard deviation of primary particle size/average primary particle size) of 0.25 or less, and an aggregation ratio (average aggregate particle size/average primary particle size) of 3 or less.
First claim
Opening claim text (preview).
1 . A soft magnetic metal powder, comprising: 5.0% by weight or more and 10.0% by weight or less of B, the balance being one or more metals selected from Fe, Ni, and Co, wherein the soft magnetic metal powder has an average primary particle size of 0.05 μm or more and 1.5 μm or less, a coefficient of variation expressed by the following (expression 1) of 0.25 or less, and an aggregation ratio expressed by the following (expression 2) of 3 or less: standard deviation of primary particle size / average primary particle size ( expression 1 ) average aggregate particle size / average primary particle size ( expression 2 ) 2 . The soft magnetic metal powder according to claim 1 , wherein the soft magnetic metal powder has an O content of less than 8.0% by weight. 3 . A resin composition comprising the soft magnetic metal powder according to claim 1 . 4 . A method for manufacturing the soft magnetic metal powder according to claim 1 , comprising: manufacturing the soft magnetic metal powder by a liquid-phase reduction method in which a reductant solution containing a B-based reductant is added dropwise to an aqueous solution of one or more metal salts selected from Fe, Ni, and Co salts.
Assignees
Inventors
Classifications
containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60 · CPC title
Magnetic · CPC title
- H01F1/26Primary
by macromolecular organic substances · CPC title
- H01F1/14741Primary
pressed, sintered or bonded together · CPC title
Nanostructured additives · 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 US2026074099A1 cover?
- A soft magnetic metal powder contains 5.0% by weight or more and 10.0% by weight or less of B, the balance being one or more metals selected from Fe, Ni, and Co. The soft magnetic metal powder has an average primary particle size of 0.05 μm or more and 1.5 μm or less, a coefficient of variation (standard deviation of primary particle size/average primary particle size) of 0.25 or less, and an a…
- Who is the assignee on this patent?
- Toda Kogyo Corp, Univ Tohoku
- What technology area does this patent fall under?
- Primary CPC classification H01F1/26. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Mar 12 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).