Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2010-07-15
2011-11-29
Dougherty, Thomas M (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S31300R
Reexamination Certificate
active
08067879
ABSTRACT:
A piezoelectric device includes a piezoelectric substrate, a conductive pattern which is provided on one main surface of the piezoelectric substrate and which includes an IDT electrode, a supporting layer which is arranged on the one main surface of the piezoelectric substrate so as to surround the periphery of an IDT-forming region in which the IDT electrode is provided and which has a thickness greater than that of the IDT electrode, and a cover layer which is arranged on the supporting layer and which covers the IDT-forming region. The supporting layer includes removed sections provided at a plurality of positions at least in a region close to the IDT-forming region, the removed sections being obtained by partially removing a portion of the supporting layer to be bonded to the one main surface of the piezoelectric substrate.
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Official Communication issued in International Patent Application No. PCT/JP2009/050027, mailed on Mar. 24, 2009.
Ikada Katsuhiro
Kudo Hayami
Takamine Yuichi
Dougherty Thomas M
Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
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