| 发明名称 | Sintered ferrite magnet and motor provided therewith | ||
| 摘要 | 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 and M1/M2 is 0.43 or less when an amount of a rare-earth element (R) is M1 in terms of mol and the amount of Zn is M2 in terms of mol. | ||
| 申请公布号 | US9627112(B2) | 申请公布日期 | 2017.04.18 |
| 申请号 | US201514638819 | 申请日期 | 2015.03.04 |
| 申请人 | TDK CORPORATION | 发明人 | Murakawa Yoshitaka;Tanigawa Naoharu;Minachi Yoshihiko;Taguchi Hitoshi |
| 分类号 | H01F1/11;H01F1/03;H02K1/02;C04B35/26;C04B35/626;C01G49/00 | 主分类号 | H01F1/11 |
| 代理机构 | Oliff PLC | 代理人 | Oliff PLC |
| 主权项 | 1. A sintered ferrite magnet comprising a main phase of an M type Sr ferrite having a hexagonal crystal structure, wherein an amount of Zn is 0.05 to 1.35 mass % in terms of ZnO and M1/M2 is 0.43 or less when an amount of a rare-earth element (R) is M1 in terms of mol and the amount of Zn is M2 in terms of mol. | ||
| 地址 | Tokyo JP | ||