| 申请日期 | 2025-06-25 | 申请号 | EP15158031 |
| 公开（公告）号 | EP2916329B1 | 公开（公告）日 | 2018-07-18 |
| 公开国别 | EP | 申请人省市代码 | 全国 |
| 申请人 | TDK Corporation | ||
| 简介 | A sintered ferrite magnet comprises a main phase of an M type Sr ferrite having a hexagonal crystal structure. An amount of Zn is 0.05 to 1.35 mass% in terms of ZnO, the sintered ferrite magnet does not substantially include a rare-earth element (R), and the following Formula (1) is satisfied, where a total amount of Sr, Ba and Ca is M3 in terms of mol, a total amount of Fe, Co, Mn, Zn, Cr and Al is M4 in terms of mol, and an amount of Si is M5 in terms of mol. 0.5 ‰¦{M3-(M4/12)}/M5‰¦4.8(1) | ||
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