发明名称 |
Carbonaceous fiber acute-angled at both ends and production process therefor |
摘要 |
Carbonaceous fibers having sharp ends and which are useful as an electron-emitting material, for example, in cold-cathode display devices. Carbonaceous fibers having a structure such that planes formed of carbon atoms in a condensed ring structure are concentrically grown around a fiber axis then subjected to heating at a temperature of 400-1200° C. in the presence of oxygen.
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申请公布号 |
US6221489(B1) |
申请公布日期 |
2001.04.24 |
申请号 |
US19990444201 |
申请日期 |
1999.11.22 |
申请人 |
SHOWA DENKO KABUSHIKI KAISHA |
发明人 |
MORITA TOSHIO;YAMASHITA TAMOTSU |
分类号 |
D01F9/12;D01F11/12;(IPC1-7):D01F9/12 |
主分类号 |
D01F9/12 |
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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