| 申请日期 | 2025-06-27 | 申请号 | JP2014087382 |
| 公开（公告）号 | JP6380738B2 | 公开（公告）日 | 2018-08-29 |
| 公开国别 | JP | 申请人省市代码 | 全国 |
| 申请人 | TDK株式会社 | ||
| 简介 | In the present invention, a permanent magnet with excellent temperature properties and magnetic properties which will not significantly deteriorate can be stably prepared, by using a raw alloy for the R-T-B based permanent magnet in which the rare earth element(s) composed of at least one selected from the group consisting of Y, La and Ce is selected as a predetermined amount of the rare earth element R in the R-T-B based permanent magnet and a proper amount of Ca is contained. | ||
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