| 发明名称 |
DIRECT HEATING TYPE CATHODE MATERIAL |
| 摘要 |
PURPOSE:To shorten the starting time and prolong the service life of an electronic tube cathode material by adding Co to Ni-Re alloy as the electron tube cathode material thus making it to ternary alloy and increasing its high temperature electric resistance. |
| 申请公布号 |
JPS5252561(A) |
申请公布日期 |
1977.04.27 |
| 申请号 |
JP19750128290 |
申请日期 |
1975.10.27 |
| 申请人 |
HITACHI LTD |
发明人 |
KAWABE USHIO;AIDA TOSHIYUKI;KUDOU SANEHIRO |
| 分类号 |
C22C19/00;H01J1/14;H01J1/15 |
主分类号 |
C22C19/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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