发明名称 |
Ink jet head having improved pressure chamber and its manufacturing method |
摘要 |
In an ink jet head including a substrate having a opening for a pressure chamber, a section of the opening is gradually increased from a front surface of the substrate to an intermediate level of the substrate and is gradually decreased from the intermediate level of the substrate to a back surface of the substrate. The opening at the front surface of the substrate serves as a nozzle.
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申请公布号 |
US2002118253(A1) |
申请公布日期 |
2002.08.29 |
申请号 |
US20010798372 |
申请日期 |
2001.03.02 |
申请人 |
NEC CORPORATION |
发明人 |
OHNO KENICHI;SUZUKI KENICHIRO;AKIMOTO YUJI;KANDA TORAHIKO;OTSUKA YASUHIRO |
分类号 |
B41J2/14;B41J2/16;(IPC1-7):B41J2/14 |
主分类号 |
B41J2/14 |
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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