发明名称 |
Cathode-ray tube and flat electrode of electronic gun and production method |
摘要 |
A cathode-ray tube includes a plate having a first hole on a first surface of the plate and a second hole on a second surface of the plate. The first and second holes are coupled together to allow electron beams to pass therethrough. The first hole has a first diameter, and the second hole has a second diameter. The first diameter is different than the second diameter
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申请公布号 |
US2002047528(A1) |
申请公布日期 |
2002.04.25 |
申请号 |
US20010823398 |
申请日期 |
2001.03.30 |
申请人 |
KANETOO OSAMI;YOSHIKAWA TAKEHISA;UENO KEII;HATADA NAOZUMI;ENDO SATORU;MERA TAKESHI;TAKAHASHI YOSHIAKI;KATO SHINICHI |
发明人 |
KANETOO OSAMI;YOSHIKAWA TAKEHISA;UENO KEII;HATADA NAOZUMI;ENDO SATORU;MERA TAKESHI;TAKAHASHI YOSHIAKI;KATO SHINICHI |
分类号 |
B21D28/00;B21C37/00;B21D28/16;B21D53/00;H01J9/14;H01J29/48;(IPC1-7):H01J23/02 |
主分类号 |
B21D28/00 |
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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