| 发明名称 |
Verfahren zur Herstellung von kugelförmigen Formkörpern |
| 摘要 |
<p>There is provided a method for manufacturing spherical sintered bodies, especially of silicon nitride of small diameter at high efficiency with fewer defects. Such spherical bodies find use as bearings for computer hard disk drives.</p> |
| 申请公布号 |
DE69910934(T2) |
申请公布日期 |
2004.07.22 |
| 申请号 |
DE1999610934T |
申请日期 |
1999.10.13 |
| 申请人 |
NGK SPARK PLUG CO., LTD. |
发明人 |
NIWA, TOMONORI;YOGO, TETSUJI |
| 分类号 |
B01J2/12;B01J2/14;B01J2/16;C01B21/068;C04B35/593;F16C33/32;(IPC1-7):C04B35/584;B22F1/00 |
主分类号 |
B01J2/12 |
| 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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