| 发明名称 |
R-Fe-B POROUS MAGNET AND METHOD FOR PRODUCING THE SAME |
| 摘要 |
An R-Fe-B based porous magnet according to the present invention has an aggregate structure of Nd 2 Fe 14 B type crystalline phases with an average grain size of 0.1 µm to 1 µm. At least a portion of the magnet is porous and has micropores with a major axis of 1 µm to 20 µm. |
| 申请公布号 |
EP1970916(A4) |
申请公布日期 |
2011.11.09 |
| 申请号 |
EP20070743651 |
申请日期 |
2007.05.18 |
| 申请人 |
HITACHI METALS, LTD. |
发明人 |
NISHIUCHI, TAKESHI;NOZAWA, NORIYUKI;HIROSAWA, SATOSHI;MAKI, TOMOHITO;BEKKI, KATSUNORI |
| 分类号 |
H01F1/08;H01F1/053;H01F1/057;H01F1/06;H01F41/02 |
主分类号 |
H01F1/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
