| 申请日期 | 2025-07-07 | 申请号 | US16465412 |
| 公开（公告）号 | US11302465B2 | 公开（公告）日 | 2022-04-12 |
| 公开国别 | US | 申请人省市代码 | 全国 |
| 申请人 | TDK CORPORATION | ||
| 简介 | To provide a rare earth permanent magnet having as a main phase a compound with a Nd5Fe17 crystalline structure having strong coercive force. A rare earth permanent magnet having as a main phase a compound with a Nd5Fe17 crystalline structure, wherein when the composition ratio of the rare earth permanent magnet is expressed as RaT(100-a-b)Cb, where R is one or more rare earth elements requiring Sm, and T is one or more transition metal elements requiring Fe or Fe and Co, a and b satisfy 18 | ||
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