Invention Grant
US07644619B2 Piezoelectric vibrator and ultrasonic motor having piezoelectric vibrator
失效
压电振子和具有压电振动器的超声波马达
- Patent Title: Piezoelectric vibrator and ultrasonic motor having piezoelectric vibrator
- Patent Title (中): 压电振子和具有压电振动器的超声波马达
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Application No.: US11436770Application Date: 2006-05-19
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Publication No.: US07644619B2Publication Date: 2010-01-12
- Inventor: Burhanettin Koc , Sung-Won Min , Dong-Kyun Lee , Jung-Ho Ryu
- Applicant: Burhanettin Koc , Sung-Won Min , Dong-Kyun Lee , Jung-Ho Ryu
- Applicant Address: KR Suwon
- Assignee: Samsung Electro Mechanics Co., Ltd
- Current Assignee: Samsung Electro Mechanics Co., Ltd
- Current Assignee Address: KR Suwon
- Priority: KR10-2005-0042711 20050520
- Main IPC: G01M3/32
- IPC: G01M3/32

Abstract:
A piezoelectric vibrator and an ultrasonic motor having the piezoelectric vibrator. A piezoelectric vibrator has a multilayered piezoelectric actuator, with special internal and surface electrodes making the body vibrate in a longitudinal and bending direction when an electrical signal is inputted. It can be manufactured using conventional multilayer piezoelectric actuator manufacturing techniques, therefore, it has reduced manufacturing time and cost, as it is not necessary to go through two polarization processes, and may simplify and decrease the volume, while improving the vibration performance.
Public/Granted literature
- US20060283253A1 Piezoelectric vibrator and ultrasonic motor having piezoelectric vibrator Public/Granted day:2006-12-21
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