Invention Grant
- Patent Title: Piezoelectric material, piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device
- Patent Title (中): 压电材料,压电元件,排液头,超声波电机和除尘装置
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Application No.: US14372549Application Date: 2013-03-08
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Publication No.: US09022534B2Publication Date: 2015-05-05
- Inventor: Hisato Yabuta , Takayuki Watanabe , Makoto Kubota , Jumpei Hayashi
- Applicant: Canon Kabushiki Kaisha
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2012-057403 20120314
- International Application: PCT/JP2013/057325 WO 20130308
- International Announcement: WO2013/137421 WO 20130919
- Main IPC: B41J2/045
- IPC: B41J2/045 ; H01L41/187 ; B41J2/14 ; H01L41/43 ; H01L41/08 ; H01L41/083 ; H02N2/10 ; H02N2/16 ; B05B17/06 ; H01L41/047 ; G02B7/10

Abstract:
Provided is a piezoelectric material having high Curie temperature, high insulation property, and high piezoelectric performance, the piezoelectric material including a perovskite-type metal oxide represented by the general formula (1): xBaTiO3-yBiFeO3-zBi(M0.5Ti0.5)O3, where M represents at least one kind of element selected from the group consisting of Mg, Ni, and Zn, x represents a value satisfying 0.25≦x≦0.75, y represents a value satisfying 0.15≦y≦0.73, and z represents a value satisfying 0.02≦z≦0.60, provided that x+y+z=1 is satisfied in which the perovskite-type metal oxide contains V, and content of the V is 0.0005 mol or larger and 0.0050 mol or smaller with respect to 1 mol of the perovskite-type metal oxide. In addition, provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric material.
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