Invention Grant
- Patent Title: Piezoelectric material
- Patent Title (中): 压电材料
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Application No.: US12135980Application Date: 2008-06-09
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Publication No.: US08480918B2Publication Date: 2013-07-09
- Inventor: Kaoru Miura , Toshihiro Ifuku , Kenichi Takeda , Tetsuro Fukui , Hiroshi Funakubo
- Applicant: Kaoru Miura , Toshihiro Ifuku , Kenichi Takeda , Tetsuro Fukui , Hiroshi Funakubo
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper and Scinto
- Priority: JP2007-163031 20070620
- Main IPC: B06B1/06
- IPC: B06B1/06

Abstract:
The present invention provides a piezoelectric material which can be applied even to the MEMS technique, exhibits satisfactory piezoelectricity even at high ambient temperatures and is environmentally clean, namely, a piezoelectric material including an oxide obtained by forming a solid solution composed of two perovskite oxides A(1)B(1)O3 and A(2)B(2)O3 different from each other in crystalline phase, the oxide being represented by the following general formula (1): X{A(1)B(1)O3}−(1−X){A(2)B(2)O3} (1) wherein “A(1)” and “A(2)” are each an element including an alkali earth metal and may be the same or different from each other; “B(1)” and “B(2)” each include two or more metal elements, and either one of “B(1)” and “B(2)” contains Cu in a content of 3 atm % or more; and “X” satisfies the relation 0
Public/Granted literature
- US20090026408A1 PIEZOELECTRIC MATERIAL Public/Granted day:2009-01-29
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