| http://www.w3.org/ns/prov#value | - This invention relates to a layered unit provided with piezoelectric ceramics for use in actuators, diaphragms, buzzers, etc., and more particularly to a layered unit provided with piezoelectric ceramics constructed in such a manner that a piezoelectric ceramics member, and a support member which is made of ceramics such as alumina, zirconia, and forsterite, or a metallic material, or a plastic ma
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