Memory device
US-9722173-B2 · Aug 1, 2017 · US
Nanoheterostructured permanent magnet and method for producing the same
US9754709B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9754709-B2 |
| Application number | US-201214345069-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 14, 2012 |
| Priority date | Sep 16, 2011 |
| Publication date | Sep 5, 2017 |
| Grant date | Sep 5, 2017 |
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Abstract
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A nanoheterostructured permanent magnet includes a hard magnetic material and a soft magnetic material of which one inorganic component is a matrix, and of which the other inorganic component is three-dimensionally and periodically arranged in the matrix, in a shape selected from the group consisting of a spherical shape, a columnar shape, and a gyroid shape, the nanoheterostructured permanent magnet having a three-dimensional periodic structure whose average value of one unit length of a repeated structure is 1 nm to 100 nm.
First claim
Opening claim text (preview).
The invention claimed is: 1. A nanoheterostructured permanent magnet comprising a hard magnetic material and a soft magnetic material, wherein the hard magnetic material and the soft magnetic material are each comprised of an inorganic component of which one inorganic component is a matrix, and of which the other inorganic component is three-dimensionally and periodically arranged in the matrix, in a shape selected from the group consisting of a spherical shape, a columnar shape, and a gyroid shape, wherein the hard magnetic material is a noble metal-based magnet, wherein the soft magnetic material is at least one selected from the group consisting of iron, iron-cobalt alloys, iron-nickel alloys, iron-noble metal alloys, silicon steel, Sendust, and soft ferrite, the nanoheterostructured permanent magnet having a three-dimensional periodic structure whose average value of one unit length of a repeated structure is 1 nm to 100 nm, and wherein a volume of part of a region comprising the soft magnetic material accounts for 50% by volume or more of the total volume of the soft magnetic material, the part satisfying a condition that a distance from an interface with the hard magnetic material is 10 nm or less. 2. The nanoheterostructured permanent magnet according to claim 1 , wherein the hard magnetic material is a noble metal-based magnet, and the soft magnetic material is iron. 3. The nanoheterostructured permanent magnet according to claim 1 , wherein the inorganic component which forms the matrix is the soft magnetic material, and the inorganic component which is three-dimensionally and periodically arranged in the matrix is the hard magnetic material.
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Classifications
All metal or with adjacent metals · CPC title
including components having same physical characteristic in differing degree · CPC title
Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] · CPC title
- H01F1/0306Primary
Metals or alloys, e.g. LAVES phase alloys of the MgCu2-type (H01F1/0304 takes precedence) · CPC title
in a bonding agent · CPC title
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- What does patent US9754709B2 cover?
- A nanoheterostructured permanent magnet includes a hard magnetic material and a soft magnetic material of which one inorganic component is a matrix, and of which the other inorganic component is three-dimensionally and periodically arranged in the matrix, in a shape selected from the group consisting of a spherical shape, a columnar shape, and a gyroid shape, the nanoheterostructured permanent …
- Who is the assignee on this patent?
- Wakayama Hiroaki, Yonekura Hirotaka, Kawai Yasuaki, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H01F1/0306. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 05 2017 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).