Piezoelectric actuator and information storage apparatus

i) Field of the Invention There are disclosed a piezoelectric actuator which can obtain large displacement at low voltage, which is small-sized and lightweight, and whose manufacture cost is low, and a small-sized lightweight information storage apparatus in which the piezoelectric actuator is incor...

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Main Authors Kurihara, Kazuaki, Kutami, Michinori
Format Patent
LanguageEnglish
Published 13.04.2004
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Abstract i) Field of the Invention There are disclosed a piezoelectric actuator which can obtain large displacement at low voltage, which is small-sized and lightweight, and whose manufacture cost is low, and a small-sized lightweight information storage apparatus in which the piezoelectric actuator is incorporated, and which is provided with a small inertia moment during head driving and a high recording density. A piezoelectric actuator includes a center body and two spiral arms , and two arms are entirely in rotation symmetry and nonlinear symmetry.
AbstractList i) Field of the Invention There are disclosed a piezoelectric actuator which can obtain large displacement at low voltage, which is small-sized and lightweight, and whose manufacture cost is low, and a small-sized lightweight information storage apparatus in which the piezoelectric actuator is incorporated, and which is provided with a small inertia moment during head driving and a high recording density. A piezoelectric actuator includes a center body and two spiral arms , and two arms are entirely in rotation symmetry and nonlinear symmetry.
Author Kurihara, Kazuaki
Kutami, Michinori
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References Koganezawa et al. (6327120) 20011200
(3-69072) 19910300
Soeno et al. (6381104) 20020400
Katayama (6249402) 20010600
Kurihara et al. (6587313) 20030700
Schmitz (4814908) 19890300
(5-502737) 19930500
Mori et al. (5189578) 19930200
Koganezawa et al. (5781381) 19980700
Sanada et al. (5440437) 19950800
Boutaghou et al. (5521778) 19960500
(2227886) 19900900
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Snippet i) Field of the Invention There are disclosed a piezoelectric actuator which can obtain large displacement at low voltage, which is small-sized and...
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Title Piezoelectric actuator and information storage apparatus
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