| 申请日期 | 2026-03-11 | 申请号 | JP2008012729 |
| 公开（公告）号 | JP2009176880A | 公开（公告）日 | 2009-08-06 |
| 公开国别 | JP | 申请人省市代码 | 全国 |
| 申请人 | TDK CORP | ||
| 简介 | PROBLEM TO BE SOLVED : To provide a permanent magnet capable of achieving the enhancement of corrosion resistance and the lowering of demagnetization.
SOLUTION : This permanent magnet 1 is a permanent magnet produced by providing a buffer layer 3 comprising, for example a Cu layer on the surface of a magnet element 2 containing rare earth elements and by further providing a protecting layer 4 comprising an Ni-P-Cu layer having a Cu content x of 0 | ||
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