Invention Grant
- Patent Title: Piezoelectric element, and liquid ejection head and recording apparatus using the piezoelectric element
- Patent Title (中): 压电元件和液体喷射头以及使用该压电元件的记录装置
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Application No.: US12717821Application Date: 2010-03-04
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Publication No.: US08356887B2Publication Date: 2013-01-22
- Inventor: Kaoru Miura , Tatsuo Furuta
- Applicant: Kaoru Miura , Tatsuo Furuta
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc., I.P. Division
- Priority: JP2009-055722 20090309
- Main IPC: B41J2/045
- IPC: B41J2/045
Abstract:
Provided are a piezoelectric element that can effectively utilize a piezoelectric constant d15 to increase a deflection displacement of a vibrating plate, and devices using the piezoelectric element. The piezoelectric element includes: a first electrode; a second electrode; a vibrating plate that is in contact with the first electrode; a piezoelectric film provided between the first electrode and the second electrode; at least one recess formed on the second electrode side of the piezoelectric film; and a third electrode formed on an inner side wall of the at least one recess, in which the third electrode is connected to the second electrode.
Public/Granted literature
- US20100225709A1 PIEZOELECTRIC ELEMENT, AND LIQUID EJECTION HEAD AND RECORDING APPARATUS USING THE PIEZOELECTRIC ELEMENT Public/Granted day:2010-09-09
Information query
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