Title:
ELECTROMECHANICAL TRANSDUCER AND METHOD OF MANUFACTURING THE SAME, DROPLET DISCHARGE HEAD, LIQUID CARTRIDGE, IMAGE FORMING APPARATUS, DROPLET DISCHARGE DEVICE, AND PUMP UNIT
Document Type and Number:
Japanese Patent JP2015000560
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To increase deformation efficiency of an electromechanical transducer in itself.SOLUTION: An actuator element 201 comprises a lower electrode 211, a PZT film 213 that is formed on the lower electrode 211, and an upper electrode 212 that is formed on the PZT film 213. The upper electrode 212 is formed on a part of a surface, on the other side of the lower electrode 211, of the PZT film 213. A part, which is not provided with the upper electrode 212, of the PZT film 213 is more thinly formed than a part, which is provided with the upper electrode 212, of the PZT film 213.
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Inventors:
NISHIMURA MANABU
Application Number:
JP2013127363A
Publication Date:
January 05, 2015
Filing Date:
June 18, 2013
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
B41J2/045; B41J2/055
Domestic Patent References:
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Foreign References:
| US20070186397A1 | 2007-08-16 | |||
| WO2004015370A1 | 2004-02-19 |
Attorney, Agent or Firm:
Hisashi Kuroda