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发明名称
DIRECT HEATING CATHODE STRUCTURE
摘要
PURPOSE:To prevent deformation in a substrate thereby avoiding changes in the operation point and oxide peeling-off in electron guns, by coating alloy powder mainly composed of W and Ni on the surface of the substrate to be applied with oxides.
申请公布号
JPS5291357(A)
申请公布日期
1977.08.01
申请号
JP19760007492
申请日期
1976.01.28
申请人
HITACHI LTD
发明人
SANKAKU AKIRA
分类号
H01J1/14;H01J1/13;H01J1/15
主分类号
H01J1/14
代理机构
代理人
主权项
地址
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