Invention Grant
- Patent Title: Electro-mechanical transducer, method of making the transducer, liquid ejection head including the transducer, and liquid ejection apparatus including the head
- Patent Title (中): 机电换能器,制造换能器的方法,包括换能器的液体喷射头和包括头部的液体喷射装置
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Application No.: US12908409Application Date: 2010-10-20
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Publication No.: US08733904B2Publication Date: 2014-05-27
- Inventor: Satoshi Mizukami
- Applicant: Satoshi Mizukami
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2009-242170 20091021
- Main IPC: B41J2/045
- IPC: B41J2/045

Abstract:
An electro-mechanical transducer includes a plurality of independent elements. Each of the plurality of independent elements includes one of a substrate and a foundation film, a first electrode of oxide disposed on the one of the substrate and the foundation film, an electro-mechanical transducer film disposed on the first electrode, a second electrode of oxide disposed on the electro-mechanical transducer film, and a third electrode of metal formed on the first electrode as a common electrode conductive to the first electrode and common to at least two of the plurality of independent elements.
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