Invention Grant
US07681998B2 Laminated piezoelectric element, liquid droplet ejection head using same, and image forming apparatus comprising same
失效
层叠压电元件,使用其的液滴喷射头,以及包括其的图像形成装置
- Patent Title: Laminated piezoelectric element, liquid droplet ejection head using same, and image forming apparatus comprising same
- Patent Title (中): 层叠压电元件,使用其的液滴喷射头,以及包括其的图像形成装置
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Application No.: US11142333Application Date: 2005-06-02
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Publication No.: US07681998B2Publication Date: 2010-03-23
- Inventor: Tsuyoshi Mita
- Applicant: Tsuyoshi Mita
- Applicant Address: JP Tokyo
- Assignee: Fujifilm Corporation
- Current Assignee: Fujifilm Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2004-164515 20040602
- Main IPC: B41J2/045
- IPC: B41J2/045

Abstract:
The laminated piezoelectric element comprises a plurality of layers including first electrodes, piezoelectric material bodies, and second electrodes, wherein: the layers are laminated in order of the first electrode, the piezoelectric material body, the second electrode, and the piezoelectric material body; a plurality of active parts of the laminated piezoelectric element, where the piezoelectric material bodies are capable of actively expanding and contracting when a voltage is applied to the first electrode and the second electrode that are mutually opposing across the piezoelectric material body, are two-dimensionally arranged in a row direction and a column direction; and the first electrodes are common to the plurality of active parts in the row direction and the second electrodes are common to the plurality of active parts in the column direction.
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