| 申请日期 | 2025-09-03 | 申请号 | US13257052 |
| 公开（公告）号 | US20120048431A1 | 公开（公告）日 | 2012-03-01 |
| 公开国别 | US | 申请人省市代码 | 全国 |
| 申请人 | Yoshiyuki Nakazawa; Ryutaro Kato; Haruhiko Shimizu | ||
| 简介 | HfC particles having an average particle size of 5 to 100 nm are dispersed in an R—Fe—B type alloy in an amount of 0.2 to 3.0 atom %. Crystal grains are refined avoiding decreasing an amount of magnet components by containing carbide and coercive force can be improved, avoiding degradation of saturated magnetization by refining the crystal grains. | ||
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