发明名称 |
Composite piezoelectric transducer and method of fabricating the same |
摘要 |
<p>A composite piezoelectric transducer of the present invention includes a plurality of arranged piezoelectric elements, and dielectric portions positioned between the plurality of piezoelectric elements. In the composite piezoelectric transducer, an area of a cross-section perpendicular to an ultrasonic emitting direction in at least one piezoelectric element of the plurality of piezoelectric elements varies along the ultrasonic emitting direction. <IMAGE></p> |
申请公布号 |
EP1384525(A2) |
申请公布日期 |
2004.01.28 |
申请号 |
EP20030016451 |
申请日期 |
2003.07.21 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAGAHARA, HIDETOMO;SUGINOUCHI, TAKEHIKO;HASHIMOTO, MASAHIKO;ASAI, KATSUHIKO |
分类号 |
B06B1/06;H01L41/18;H01L41/22;H01L41/37;H04R17/00;(IPC1-7):B06B1/06 |
主分类号 |
B06B1/06 |
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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