| 申请日期 | 2025-07-07 | 申请号 | BRPI0618960 |
| 公开（公告）号 | BRPI0618960A2 | 公开（公告）日 | 2011-09-13 |
| 公开国别 | BR | 申请人省市代码 | 全国 |
| 申请人 | HITACHI METALS LTD | ||
| 简介 | A sintered ferrite magnet having an M-type ferrite structure and comprising Ca, an R element which is at least one rare earth element indispensably including La, Ba, Fe and Co as indispensable elements, which is represented by Ca 1-x-y R x Ba y Fe 2n-z Co z , wherein (1-x-y), x, y, z and n are numbers representing the amounts of Ca, the R element, Ba and Co and a molar ratio, meeting 0.2 ‰ x ‰ 0.65, 0.001 ‰ y ‰ 0.2, 0.03 ‰ z ‰ 0.65, and 4 ‰ n ‰ 7. | ||
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