发明授权
US4053807A Thermionic cathode and heater structure on ceramic base plate
失效
陶瓷基板上的THERMIONIC CATHODE和加热器结构
- 专利标题: Thermionic cathode and heater structure on ceramic base plate
- 专利标题(中): 陶瓷基板上的THERMIONIC CATHODE和加热器结构
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申请号: US672501申请日: 1976-03-31
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公开(公告)号: US4053807A公开(公告)日: 1977-10-11
- 发明人: Torao Aozuka , Akio Ohkoshi , Shoichi Muramoto , Akira Nakayama , Koichiro Sumi
- 申请人: Torao Aozuka , Akio Ohkoshi , Shoichi Muramoto , Akira Nakayama , Koichiro Sumi
- 申请人地址: JA Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JA Tokyo
- 优先权: JA50-40590 19750403
- 主分类号: H01J1/20
- IPC分类号: H01J1/20 ; H01J1/22 ; H01J1/24 ; H01J1/26 ; H01J9/04 ; H01J29/04 ; H01J29/50 ; H01J19/18 ; H01J29/46
摘要:
A thermionic cathode structure includes a ceramic base plate, a heater layer of tungsten coated on the ceramic base plate, a cathode lead layer of tungsten formed on a ceramic insulating layer covering the heater layer, a base metal layer coated on the cathode lead layer, and a cathode material coated on the base metal layer.
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