Patent ID: 7358647

Claim:
A piezoelectric/electrostrictive device, comprising: a piezoelectric/electrostrictive element comprising a pair of electrodes; a pair of thin plate sections, each extending in a longitudinal direction of said device, each of said thin plate sections having a first portion and a second portion; and a fixation section joined to said first portion of each of said thin plate sections; a movable section provided at ends of said second portion of said pair of thin plate sections, wherein a part of said piezoelectric/electrostrictive element is located at said fixation section, and wherein (1-Lb/La) is not less than 0.4, where La represents a shortest distance between said movable section and said fixation section, and Lb represents a shortest distance between said movable section and any one of ends of said pair of electrodes of said piezoelectric/electrostrictive element.