| 发明名称 |
COLOR CATHODE-RAY TUBE |
| 摘要 |
PROBLEM TO BE SOLVED: To prevent defects in welding of composite electrodes composing an electron gun. SOLUTION: A plate-like electrode 1 and cup-like electrodes 2, 3 formed by pressing an electrode material having a hardness of 200 to 250 Hv, are welded at side edges of their outer peripheries.
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| 申请公布号 |
JP2001325894(A) |
申请公布日期 |
2001.11.22 |
| 申请号 |
JP20000147407 |
申请日期 |
2000.05.19 |
| 申请人 |
HITACHI LTD;HITACHI ELECTRONIC DEVICES CO LTD |
发明人 |
SUDO AKITO;MERA TAKESHI;TOSHIBE KEN |
| 分类号 |
H01J29/48;(IPC1-7):H01J29/48 |
主分类号 |
H01J29/48 |
| 代理机构 |
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