Electrical steel sheet and method for manufacturing same
US-12163066-B2 · Dec 10, 2024 · US
Soft magnetic material powder manufacturing method
US10825590B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10825590-B2 |
| Application number | US-202016861037-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 28, 2020 |
| Priority date | Oct 10, 2014 |
| Publication date | Nov 3, 2020 |
| Grant date | Nov 3, 2020 |
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 material powder includes soft magnetic material particles, the soft magnetic material particles each include a core formed from an Fe-based soft magnetic material and an insulating film covering the surface of the core, and the insulating film contains an inorganic oxide and a water soluble polymer. A magnetic core includes soft magnetic material particles and a binder bonding the soft magnetic material particles to each other, the soft magnetic material particles each include a core containing an Fe-based soft magnetic material and an insulating film covering the surface of the core, and the insulating film contains an inorganic oxide and a water soluble polymer.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for manufacturing a soft magnetic material powder, the method comprising: dispersing an Fe-based soft magnetic material in a solvent; and adding a metal alkoxide, a water soluble polymer, and water to the solvent followed by stirring to form insulating films each containing a metal oxide, which is a hydrolysate of the metal alkoxide, and the water soluble polymer on surfaces of soft magnetic material particles which form the Fe-based soft magnetic material powder, so that an insulating treatment is performed on the soft magnetic material particles.
Assignees
Inventors
Classifications
Metallic particles coated with a non-metal (coated with lubricating or binding agents or with organic material B22F1/10) · CPC title
Metallic powder coated with organic material · CPC title
mixtures of metallic and non-metallic particles; metallic particles having oxide skin · CPC title
by macromolecular organic substances · 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 US10825590B2 cover?
- A soft magnetic material powder includes soft magnetic material particles, the soft magnetic material particles each include a core formed from an Fe-based soft magnetic material and an insulating film covering the surface of the core, and the insulating film contains an inorganic oxide and a water soluble polymer. A magnetic core includes soft magnetic material particles and a binder bonding t…
- Who is the assignee on this patent?
- Murata Manufacturing Co
- What technology area does this patent fall under?
- Primary CPC classification H01F1/147. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 03 2020 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).