| 发明名称 |
ELECTRON GUN |
| 摘要 |
<p>PURPOSE:To enable stableh eating for a long time in contact with the thermoelectron emitter such as hexaboride of chemical activity and to suppress the changes in the electron emission characteristics due to the sublimation of thermoelectron emitter and the contact condition change of the object to be heated with this.</p> |
| 申请公布号 |
JPS5238873(A) |
申请公布日期 |
1977.03.25 |
| 申请号 |
JP19750114299 |
申请日期 |
1975.09.23 |
| 申请人 |
NIPPON TELEGRAPH & TELEPHONE |
发明人 |
TATSUNO KOUICHI;KOMINE YUKIO |
| 分类号 |
H01J37/06;H01J1/15;H01J1/18;H01J3/02 |
主分类号 |
H01J37/06 |
| 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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