Invention Grant
- Patent Title: Piezoelectric actuator and electronic apparatus
- Patent Title (中): 压电致动器和电子设备
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Application No.: US12522850Application Date: 2008-01-09
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Publication No.: US08148876B2Publication Date: 2012-04-03
- Inventor: Yasuharu Onishi , Yasuhiro Sasaki , Masatake Takahashi , Ukyo Mori , Yukio Murata , Nozomi Toki , Yukio Yokoyama
- Applicant: Yasuharu Onishi , Yasuhiro Sasaki , Masatake Takahashi , Ukyo Mori , Yukio Murata , Nozomi Toki , Yukio Yokoyama
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2007-004469 20070112
- International Application: PCT/JP2008/050129 WO 20080109
- International Announcement: WO2008/084806 WO 20080717
- Main IPC: H01L41/09
- IPC: H01L41/09
Abstract:
Piezoelectric actuator (51) includes a piezoelectric element (11) that performs expansion/contraction movement in accordance with the state of an electrical field, a base (21) with the piezoelectric element (11) adhered to one surface thereof, and a support member (46) for supporting the piezoelectric element (11) and the base (21), the piezoelectric element (11) and base (21) vibrating up and down in accordance with the expansion/contraction movement of the piezoelectric element (11). The base (21) is connected to the support member (46) by way of a vibration film (31) having less rigidity than the base (21). In addition, the piezoelectric element (11) and support member (46) have different outline shapes.
Public/Granted literature
- US20100038998A1 PIEZOELECTRIC ACTUATOR AND ELECTRONIC APPARATUS Public/Granted day:2010-02-18
Information query
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