PIEZOELECTRIC ELEMENT AND METHOD FOR MANUFACTURING THE SAME, LIQUID-EJECTING HEAD AND METHOD FOR MANUFACTURING THE SAME, AND LIQUID-EJECTING APPARATUS

A piezoelectric element includes a piezoelectric film containing lead (Pb), zirconium (Zr), and titanium (Ti). The piezoelectric film has a composition satisfying the relationship of Zr/(Ti+Zr)>Ti/(Ti+Zr) and has a polarization-electric field hysteresis loop having a Pm/2Pr of 1.95 or more and a...

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Bibliographic Details
Main Authors SAWASAKI TATSUO, TORIMOTO TATSURO, TAKABE MOTOKI, SUMI KOJI, KURIKI AKIRA
Format Patent
LanguageEnglish
Published 06.05.2010
Subjects
CORRECTION OF TYPOGRAPHICAL ERRORS
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PERFORMING OPERATIONS
PRINTING
PUBLIC ADDRESS SYSTEMS
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:A piezoelectric element includes a piezoelectric film containing lead (Pb), zirconium (Zr), and titanium (Ti). The piezoelectric film has a composition satisfying the relationship of Zr/(Ti+Zr)>Ti/(Ti+Zr) and has a polarization-electric field hysteresis loop having a Pm/2Pr of 1.95 or more and a Vc(−) of −1.75 V or more, wherein Pm denotes saturation polarization, Pr denotes remanent polarization, and Vc(−) denotes a negative coercive electric field intensity.
Bibliography:Application Number: US20090611823