US 6,724,127 B2 · Piezoelectric/electrostrictive device

Abstract

A piezoelectric/electrostrictive device including a substrate and a connection plate having a first end joined to the substrate and an opposed second end extending along a first direction, and first and second opposed sides along a second direction perpendicular to the first direction. A fixing plate is joined to the second end of the connection plate. A first side of a first diaphragm is joined to the first side of the connection plate and an opposed second side of the first diaphragm is joined to the substrate. A first side of a second diaphragm is joined to the substrate and an opposed second side of the second diaphragm is joined to the second side of the connection plate. A piezoelectric/electrostrictive element is provided on at least a portion of at least one planar surface of at least one of the diaphragms.

Claims23

Dependent claims

A piezoelectric/electrostrictive device comprising:

a substrate;
at least one connection plate extending along a first direction and having a first end attached to a first portion of said substrate and an opposed second end;
at least one fixing plate attached to said second end of said connection plate;
at least one diaphragm having a first end attached to a second portion of said substrate and an opposed second end attached to one of said fixing plate and said connection plate;
and
at least one piezoelectric element arranged on at least a portion of a surface of said diaphragm.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/231,737Filed 30 Aug 2002 · division

Priority

JP 9-2430738 Sep 1997

Published

US 2003/0011283 A116 Jan 2003

Granted

20 Apr 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification21 codes

G01P 15/0922
By piezoelectric pick-up: of the bending or flexing mode type
B06B 1/06
Making use of electrical energy: operating with piezoelectric effect or with electrostriction
B06B 1/0648
Using a single piezoelectric element: of rectangular shape
B06B 1/0692
With foil-type piezoelectric elements, e.g. PVDF: with a continuous electrode on one side and a plurality of electrodes on the other side

Piezoelectric/electrostrictive device

Life of this patent

Piezoelectric/electrostrictive device

Life of this patent

Abstract

Claims23