| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a ceramic nozzle provided with a fine hole having a smooth surface and high in positional accuracy. <P>SOLUTION: In the ceramic nozzle having an inflow port, an outflow port and the fine hole provided in the vicinity of the outflow port and ejecting a fluid, the fine hole has a surface subjected to thermal melting treatment by processing the fine hole by YAG laser. <P>COPYRIGHT: (C)2003,JPO</p> |
