发明名称 |
Piezoelectric ceramic composition, piezoelectric ceramic element, and method for manufacturing the piezoelectric ceramic composition |
摘要 |
A piezoelectric ceramic composition contains a compound containing Na, Li, Nb and O, and having a perovskite structure, as a main component. The main component has a crystal phase in a semi-stable state at room temperature, such crystal phase originally not being stable at room temperature but being stable at a higher temperature. |
申请公布号 |
US6579468(B2) |
申请公布日期 |
2003.06.17 |
申请号 |
US20020158640 |
申请日期 |
2002.05.29 |
申请人 |
MURATA MANUFACTURING CO. LTD. |
发明人 |
KIMURA MASAHIKO;ANDO AKIRA;OGAWA TOMOYUKI |
分类号 |
H03H9/00;C01G33/00;C01G35/00;C04B35/495;H01L41/187;H03H9/17;(IPC1-7):H01L41/00;C04B35/499 |
主分类号 |
H03H9/00 |
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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