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
-
Application No.: US13993721Application Date: 2011-12-22
-
Publication No.: US09306149B2Publication Date: 2016-04-05
- Inventor: Jumpei Hayashi , Hisato Yabuta , Makoto Kubota , Mikio Shimada , Satoshi Wada , Ichiro Fujii , Ryuta Mitsui , Nobuhiro Kumada
- Applicant: Jumpei Hayashi , Hisato Yabuta , Makoto Kubota , Mikio Shimada , Satoshi Wada , Ichiro Fujii , Ryuta Mitsui , Nobuhiro Kumada
- Applicant Address: JP Tokyo JP Kofu-shi
- Assignee: Canon Kabushiki Kaisha,University of Yamanashi
- Current Assignee: Canon Kabushiki Kaisha,University of Yamanashi
- Current Assignee Address: JP Tokyo JP Kofu-shi
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2010-292819 20101228; JP2011-194072 20110906
- International Application: PCT/JP2011/080555 WO 20111222
- International Announcement: WO2012/091147 WO 20120507
- Main IPC: H01L41/187
- IPC: H01L41/187 ; B41J2/14 ; C04B35/468 ; G02B27/00 ; H01L41/09 ; H02N2/10 ; H04N5/217 ; C04B35/26 ; C04B35/475 ; C04B35/626 ; C04B35/632 ; C04B35/634 ; C04B35/638 ; H02N2/16

Abstract:
Provided is a piezoelectric material that achieves both high piezoelectric performance and high Curie temperature. In addition, provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric material. The piezoelectric material includes a perovskite-type metal oxide that is expressed by the following general formula (1): xBaTiO3-yBiFeO3-zBi(M0.5Ti0.5)O3 (1), where M represents at least one type of element selected from the group consisting of Mg and Ni, x satisfies 0.25≦x≦0.75, y satisfies 0.15≦y≦0.70, z satisfies 0.05≦z≦0.60, and x+y+z=1 is satisfied.
Public/Granted literature
Information query
IPC分类: