发明名称 |
Rare-earth element/cobalt type magnet powder for resin magnets |
摘要 |
Magnetic powder of the samarium/praseodymium/cobalt type and of the samarium/praseodymium/neodymium/cobalt type having specific compositions is substantially composed of (1-5) single phase, has improved residual magnetic flux density and a high maximum energy product, and is hence suitable for resin magnets. In addition, production cost is lower compared with conventional rare-earth metal/cobalt type magnet powder because part of samarium metal has been replaced by praseodymium and neodymium which are more abundant and less expensive materials.
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申请公布号 |
US4865660(A) |
申请公布日期 |
1989.09.12 |
申请号 |
US19880219856 |
申请日期 |
1988.07.13 |
申请人 |
SUMITOMO METAL MINING COMPANY LTD. |
发明人 |
NATE, TATSUO;OKA, KOICHI;SATOH, TAKEHIKO |
分类号 |
H01F1/055;H01F1/06 |
主分类号 |
H01F1/055 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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