Invention Grant
- Patent Title: Piezoelectric substance, piezoelectric element, and liquid discharge head and liquid discharge apparatus using piezoelectric element
- Patent Title (中): 压电体，压电元件，液体排出头以及使用压电元件的液体排出装置
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Application No.: US12301567Application Date: 2007-07-13
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Publication No.: US07948154B2Publication Date: 2011-05-24
- Inventor: Toshihiro Ifuku , Kenichi Takeda , Tetsuro Fukui , Hiroshi Funakubo
- Applicant: Toshihiro Ifuku , Kenichi Takeda , Tetsuro Fukui , Hiroshi Funakubo
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Canon Kabushiki Kaisha,Tokyo Institute of Technology
- Current Assignee: Canon Kabushiki Kaisha,Tokyo Institute of Technology
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2006-196114 20060718
- International Application: PCT/JP2007/064384 WO 20070713
- International Announcement: WO2008/010583 WO 20080124
- Main IPC: H01L41/187
- IPC: H01L41/187
Abstract:
A piezoelectric substance which is made of oxide with perovskite type structure which is made of ABO3, where a principal component of A is Pb, and principal components of B contain at least two kinds of elements among Nb, Mg, Zn, Sc, Cd, Ni, Mn, Co, Yb, In, and Fe, and Ti, characterized by being a uniaxial orientation crystal or a single crystal which has an a-domain and a c-domain of tetragonal.
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