Invention Grant
- Patent Title: Liquid ejecting head and liquid ejecting apparatus
- Patent Title (中): 液体喷头和液体喷射装置
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Application No.: US14268805Application Date: 2014-05-02
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Publication No.: US09272507B2Publication Date: 2016-03-01
- Inventor: Hiromu Miyazawa , Hiroshi Ito , Jiro Kato , Eiju Hirai , Toshihiro Shimizu
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Workman Nydegger
- Priority: JP2009-289790 20091221
- Main IPC: B41J2/045
- IPC: B41J2/045 ; B41J2/055 ; B41J2/14

Abstract:
A liquid ejecting head includes a flow channel forming substrate having pressure generation chambers communicating with a nozzle opening and arranged in parallel along a lateral direction. A piezoelectric element is provided on one surface of the flow channel forming substrate in correspondence to the pressure generation chamber, and has a first electrode, a piezoelectric layer provided on the first electrode and a second electrode provided on the piezoelectric layer. In a direction intersecting with the arrangement direction of the pressure generation chambers, in boundaries between an active section that is a substantial driving section and an inactive section that is not a substantial driving section of the piezoelectric layer, the first electrode includes a taper section of which a width is gradually decreased toward the boundary from the active section side.
Public/Granted literature
- US20140240403A1 LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS Public/Granted day:2014-08-28
Information query
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