| 申请日期 | 2025-07-08 | 申请号 | US11814266 |
| 公开（公告）号 | US7837893B2 | 公开（公告）日 | 2010-11-23 |
| 公开国别 | US | 申请人省市代码 | 全国 |
| 申请人 | Takashi Takami; Hiroshi Iwasaki; Naoki Mochi | ||
| 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 Ca1-x-yRxBayFe2n-zCoz, 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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