| 发明名称 |
ELECTRIC FIELD RADIATION CATHODE AND ITS MANUFACTURING METHOD |
| 摘要 |
<p>PURPOSE:Long-life electric field radiation cathode working in ultra-high vacuum environment by use of carbon or high melting-point metal as basic material for cathode with electron radisting area made of glass-like carbon.</p> |
| 申请公布号 |
JPS524162(A) |
申请公布日期 |
1977.01.13 |
| 申请号 |
JP19750079403 |
申请日期 |
1975.06.27 |
| 申请人 |
HITACHI LTD |
发明人 |
HOSOKI SHIGEYUKI;OKANO HIROSHI |
| 分类号 |
H01J9/02;H01J1/30;H01J1/304 |
主分类号 |
H01J9/02 |
| 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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