Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
【発明の名称】圧電/電歪膜型アクチュエータ
Document Type and Number:
Japanese Patent JP2842448
Kind Code:
B2
Abstract:
PURPOSE:To obtain a piezoelectric/electrostrictive film type actuator having the high speed of response and large generating force by laminating a first electrode film, a piezoelectric/electrostrictive film and a second electrode film onto a ceramic substrate. CONSTITUTION:A lower electrode film 4, a piezoelectric/electrostrictive film 6 and an upper electrode film 8 are laminated successively onto one surface of a ceramic substrate 2. The lower and upper electrode films 4, 8 are extended from the end section of the piezoelectric/electrostrictive film 6 respectively, lead sections 4a, 8a are shaped, and electricity is conducted through each electrode film 4, 8 through these lead sections 4a, 8a. The electric-field induced strain of the piezoelectric/electrostrictive film 6 is induced by conduction, and flexing displacement in the direction vertical to the board surface of the ceramic substrate 2 or generating force is developed by the transversal effect of the strain. Accordingly, large displacement is acquired at low driving voltage, and a piezoelectric/electrostrictive film type actuator, the speed of response of which is increased and the degree of integration of which can be improved, is obtained.

Inventors:
TAKEUCHI YUKIHISA
KOMAZAWA MASATO
KIMURA KOJI
Application Number:
JP1117490A
Publication Date:
January 06, 1999
Filing Date:
January 20, 1990
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON GAISHI KK
SEIKOO EPUSON KK
International Classes:
H02N2/00; H01L41/09; H01H57/00; (IPC1-7): H02N2/00
Domestic Patent References:
JP63107469A
JP5837159U
Attorney, Agent or Firm:
Michio Nakajima (2 outside)