Invention Grant
- Patent Title: Piezoelectric element, piezoelectric actuator, liquid ejecting head and liquid ejecting apparatus
- Patent Title (中): 压电元件，压电致动器，液体喷射头和液体喷射装置
-
Application No.: US13176101Application Date: 2011-07-05
-
Publication No.: US08770727B2Publication Date: 2014-07-08
- Inventor: Masao Nakayama
- Applicant: Masao Nakayama
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Workman Nydegger
- Priority: JP2010-156018 20100708; JP2011-060616 20110318
- Main IPC: B41J2/045
- IPC: B41J2/045
Abstract:
A piezoelectric element includes a first electrode, a first piezoelectric layer which is formed at an upper side of the first electrode and at lateral sides to the first electrode, a porous layer which is formed so as to cover side surfaces of the first piezoelectric layer, and a second electrode which is formed at an upper side of the first piezoelectric layer and the porous layer. In the piezoelectric element, the porous layer contains at least one metal element constituting the first piezoelectric layer.
Public/Granted literature
- US20120007927A1 PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS Public/Granted day:2012-01-12
Information query
IPC分类:
