| 申请日期 | 2025-06-24 | 申请号 | JP2007541537 |
| 公开（公告）号 | JP4103937B1 | 公开（公告）日 | 2008-06-18 |
| 公开国别 | JP | 申请人省市代码 | 全国 |
| 申请人 | Hitachi Metals Ltd5083 | ||
| 简介 | An R-T-B based sintered magnet according to the present invention comprises : 12 at% to 17 at% of a rare-earth element R; 5.0 at% to 8.0 at% of boron B; 0.02 at% to 0.3 at% of Mn; and a transition metal T as the balance. The rare-earth element R is at least one element selected from the rare-earth elements, including Y (yttrium), and includes 0.2 at% to 10 at% of Pr. And the transition element T includes Fe as its main element. | ||
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