| 申请日期 | 2025-07-07 | 申请号 | WOJP09066220 |
| 公开（公告）号 | WO2010032772A1 | 公开（公告）日 | 2010-03-25 |
| 公开国别 | WO | 申请人省市代码 | 全国 |
| 申请人 | NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY; OHMI Tadahiro; GOTO Tetsuya | ||
| 简介 | It is possible to obtain a cathode body which can maintain a long service life even when a large current has flown. Provided is a magnetron cathode body including as a base material, a metal of a high melting point having an electron emission material inside and coated by borax of rare earth. The electron emission material and the metal of a high melting point are preferably La2O3 and W, respectively. The borax of rare earth is preferably LaB6. | ||
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