Patent application number | Description | Published |
20120091861 | CERAMIC COMPOSITION FOR PIEZOELECTRIC ACTUATOR AND PIEZOELECTRIC ACTUATOR COMPRISING THE SAME - The present invention relates to a ceramic composition for a piezoelectric actuator and a piezoelectric actuator comprising the same. The ceramic composition for piezoelectric actuator includes a piezoelectric ceramic powder expressed by a Chemical Formula: (1-x)Pb(Zr | 04-19-2012 |
20120139850 | HAPTIC DRIVING ASSEMBLY AND ELECTRONIC DEVICE USING THE SAME - There is provided a haptic driving assembly capable of providing more uniform haptic feedback, and an electronic device using the same. The haptic driving assembly includes: at least one actuator; and a vibration transferring part disposed to contact at least one surface of the actuator and transferring vibrations generated in the actuator to the outside through a liquid phase medium. | 06-07-2012 |
20130042690 | ULTRASONIC SENSOR - Disclosed herein is an ultrasonic sensor including: a case; a piezoelectric element mounted on an inner side bottom surface of the case; a first sound absorbing material having a through-hole formed at an area thereof corresponding to a mounting area of the piezoelectric element and including the piezoelectric element disposed at a portion thereof based on a thickness of the through-hole; and a second sound absorbing material formed on the first sound absorbing material so as to cover the entire surface of the first sound absorbing material including the through-hole, wherein the through-hole formed has a thickness thicker than that of the piezoelectric element. | 02-21-2013 |
20130043772 | CASE FOR ULTRASONIC SENSOR AND ULTRASONIC SENSOR USING THE SAME - Disclosed herein are a case for an ultrasonic sensor and an ultrasonic sensor using the same. The case for an ultrasonic sensor has a cylindrical shape and includes a disposition area of a piezoelectric element and a first groove formed in an inner side bottom surface thereof, wherein the first groove is formed along an edge of the disposition area of the piezoelectric element. | 02-21-2013 |
20130081470 | ULTRASONIC SENSOR AND METHOD FOR MANUFACTURING THE SAME - Disclosed herein are an ultrasonic sensor including: a cylindrical case; a piezoelectric element; a sound absorbing material; a temperature compensation capacitor inserted into and fixed to the groove; a first pin terminal connected to one electrode of the temperature compensation capacitor and an exposed electrode of the piezoelectric element while penetrating through the groove of the sound absorbing material; a second pin terminal inserted into and fixed to the groove of the sound absorbing material and connected to the other electrode of the temperature compensation capacitor; and a lead wire inserted into and fixed to the groove of the sound absorbing material and having one terminal connected to the second pin terminal and the other terminal connected to an inner wall of the case, and a method for manufacturing the same. | 04-04-2013 |
20130112000 | ULTRASONIC SENSOR - Disclosed herein is an ultrasonic sensor, including: a case partitioning an inner space; a temperature-compensation ceramic maintaining a temperature of a sensor to be constant; sockets accommodating the temperature-compensation ceramic; a negative (−) terminal and a positive (+) terminal connected to the sockets, respectively; a piezoelectric ceramic connected to the positive (+) terminal and vibrating when power is supplied thereto; and an acoustic absorbent absorbing vibration of the piezoelectric ceramic. | 05-09-2013 |
20130134833 | ULTRASONIC SENSOR AND METHOD FOR MANUFACTURING THE SAME - Disclosed herein are an ultrasonic sensor and a method of manufacturing the same. The ultrasonic sensor includes: a case having one end closed and the other end opened; a piezoelectric element fixedly coupled to one end of an inner portion of the case; a sound absorbing member coupled to an upper surface of the piezoelectric element so as to cover a portion of the piezoelectric element; a conductive member having one end connected to the piezoelectric element and the other end connected to the sound absorbing member; and a lead wire electrically coupled to the conductive member and the case. | 05-30-2013 |