发明名称 |
Carbon-based heating unit and method for preparation thereof |
摘要 |
Carbonization is achieved and impurity elements are removed by combination of a metal or metalloid compound with a composition exhibiting a carbon residual yield that is substantially not zero after firing, followed by firing at a pressure of no higher than 1x10<-2 >Pa and a temperature of from 1500° C. to 2200° C.
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申请公布号 |
US6627116(B1) |
申请公布日期 |
2003.09.30 |
申请号 |
US20010890032 |
申请日期 |
2001.07.27 |
申请人 |
MITSUBISHI PENCIL CO., LTD. |
发明人 |
SUDA YOSHIHISA;KANBA NOBORU;SHIMIZU OSAMU |
分类号 |
C04B35/52;C04B35/524;C04B35/583;H01C17/065;H05B3/14;(IPC1-7):H01B1/04;H05B3/10 |
主分类号 |
C04B35/52 |
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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