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JPS58139799

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DESCRIPTION JPS58139799
[0001]
Brief description of the drawings
[0002]
1 to 3 are side views (partial circuit diagrams) for explaining the principles of the piezoelectric
element and the resonance plate. FIG. 4 is a curve diagram showing the amplitude characteristics
of various frequency bands in the conventional resonance plate, and FIG. 5 is a curve diagram
showing amplitude characteristics of various frequency bands in the resonance plate according
to the present invention. FIGS. 6 and 7 are plan views, and FIGS. 8 to 13 are enlarged crosssectional views. DESCRIPTION OF SYMBOLS 1 ... Piezoelectric element, 2 ... Resonant plate, 3 ...
Plate member, 4 ...; Fig. 11 j-Fig. 13 J / じ 牙 \ Z can \ Fig. 74 茹 茹 (4)
11-05-2019
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