Title:
SHEAR MODE-TYPE PIEZOELECTRIC ACTUATOR AND LIQUID DROPLET DELIVERY HEAD
Document Type and Number:
WIPO Patent Application WO/2008/029573
Kind Code:
A1
Abstract:
This invention provides a shear mode-type piezoelectric actuator using a piezoelectric ceramic composition free from lead and having a high antielectric field, and a liquid droplet delivery head provided with the shear mode-type piezoelectric actuator. The shear mode-type piezoelectric actuator is characterized by using a piezoelectric ceramic composition comprising a main component of general formula (1)and a solid solution composed of the main component and an auxiliary component of general formula (2) added in an amount of less than 1% by mole based on the total amount of the solid solution: general formula (1) {LiX(K1-YNaY)1-X}(Nb1-Z-WTaZSbW)O3 (wherein 0 ≤ x ≤ 0.2, 0 ≤ y ≤ 1, 0 < z ≤ 0.4, and 0 < w ≤ 0.2); and general formula (2) ABO3 (wherein A represents Bi; B represents at least one of Fe, In, and Sc).
Inventors:
URAKI, Shingo (Inc. 1, Sakura-machi, Hino-sh, Tokyo 11, 1918511, JP)
Application Number:
JP2007/065150
Publication Date:
March 13, 2008
Filing Date:
August 02, 2007
Export Citation:
Assignee:
Konica Minolta Holdings, Inc. (6-1 Marunouchi 1-chome, Chiyoda-ku Tokyo, 05, 1000005, JP)
コニカミノルタホールディングス株式会社 (〒05 東京都千代田区丸の内一丁目６番１号 Tokyo, 1000005, JP)
コニカミノルタホールディングス株式会社 (〒05 東京都千代田区丸の内一丁目６番１号 Tokyo, 1000005, JP)
International Classes:
H01L41/09; B41J2/045; B41J2/055; C04B35/00; H01L41/187; H02N2/00