Invention Grant
US08210662B2 Liquid-ejecting head, liquid-ejecting apparatus and actuator device
有权
液体喷射头，液体喷射装置和致动器装置
- Patent Title: Liquid-ejecting head, liquid-ejecting apparatus and actuator device
- Patent Title (中): 液体喷射头，液体喷射装置和致动器装置
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Application No.: US12576994Application Date: 2009-10-09
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Publication No.: US08210662B2Publication Date: 2012-07-03
- Inventor: Hiromu Miyazawa , Hiroshi Ito , Koichi Morozumi , Jiro Kato
- Applicant: Hiromu Miyazawa , Hiroshi Ito , Koichi Morozumi , Jiro Kato
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Workman Nydegger
- Priority: JP2008-264651 20081010
- Main IPC: B41J2/45
- IPC: B41J2/45
Abstract:
A liquid-ejecting head including a pressure-generating chamber communicating with an nozzle, and a piezoelectric element having a first electrode, a piezoelectric layer arranged above the first electrode, and a second electrode arranged above the piezoelectric layer. An internal electric field in the piezoelectric layer is biased toward the first electrode or the second electrode and no voltage is applied to the first electrode or the second electrode.
Public/Granted literature
- US20100091075A1 LIQUID-EJECTING HEAD, LIQUID-EJECTING APPARATUS AND ACTUATOR DEVICE Public/Granted day:2010-04-15
Information query
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