| 申请日期 | 2025-07-08 | 申请号 | WOJP13005987 |
| 公开（公告）号 | WO2014057657A1 | 公开（公告）日 | 2014-04-17 |
| 公开国别 | WO | 申请人省市代码 | 全国 |
| 申请人 | KABUSHIKI KAISHA TOSHIBA; TOSHIBA MATERIALS CO LTD | ||
| 简介 | Provided are rare earth storage medium particles and a rare earth storage medium particle group having long-term high reliability, a cold head using these, a superconducting magnet, an inspection device, and a cryopump. Rare earth storage medium particles containing rare earth elements in the constituent components, wherein a peak indicating a carbon component is detected in the surface region by X-ray photoelectron spectroscopic analysis. | ||
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