ELECTROMECHANICAL CONVERSION ELEMENT AND ACTUATOR

WIPO Patent Application WO/2011/049022

A1

Provided are an electromechanical conversion element having high connection reliability and an actuator provided therewith. An electromechanical conversion element (10) comprises a displacement portion (20) that is extended and contracted by the application of voltage and has an electrode forming surface and a bonding surface which are disposed adjacent to each other, and an external electrode (21b, 22b) formed on the electrode forming surface, a lead electrode (24a, 24b) for applying voltage to the displacement portion (20) is joined to a joint region provided in the external electrode (21b, 22b), and a driven member (15) that is driven by the extension and contraction of the displacement portion (20) is joined to the bonding surface by a bonding adhesive. The electromechanical conversion element (10) is provided with a bleed flow stop portion (25a, 26a) provided closer to the bonding surface side than the end of the joint region on the same side as the bonding surface on the electrode forming surface.

YODA TADASHI (JP)
NISHIMURA TOSHIO (JP)
NISHIKAWA MASANAGA (JP)
OKAMOTO YASUHIRO (JP)
YUASA TOMOYUKI (JP)

PCT/JP2010/068177

April 28, 2011

October 15, 2010

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MURATA MANUFACTURING CO (JP)
KONICA MINOLTA OPTO INC (JP)
YODA TADASHI (JP)
NISHIMURA TOSHIO (JP)
NISHIKAWA MASANAGA (JP)
OKAMOTO YASUHIRO (JP)
YUASA TOMOYUKI (JP)

H02N2/00

JP2007104808A	2007-04-19
JP2005328639A	2005-11-24
JP2006141133A	2006-06-01
JP2006141171A	2006-06-01
JP2007181384A	2007-07-12

MIYAZAKI, Chikara et al. (JP)
Miyazaki Chikara (JP)

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