| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 310354000 | Clamped | 11 |
| 20090066192 | ULTRASONIC TRANSDUCER AND METHOD OF PRODUCING THE SAME - An ultrasonic transducer includes: piezoelectric elements; a pair of clamping members which clamp said piezoelectric elements; and a cover member which is crimped to at least one of said pair of clamping members in a state where said cover member cooperates with said pair of clamping members to surround said piezoelectric elements. | 03-12-2009 |
| 20090174293 | HIGH-PERFORMANCE ELECTROACTIVE POLYMER TRANSDUCERS - Electroactive polymer constructions that convert electrical energy to mechanical energy and vice versa are disclosed. The subject transducers (actuators, generators, sensors or combinations thereof) share the requirement of a frame or fixture element used in preloading elastomeric film electrodes and dielectric polymer in a desired configuration. The structures are either integrally biased in a push-pull arrangement or preloaded/biased by another element. | 07-09-2009 |
| 20100164329 | THREE-DIMENSIONAL ELECTROACTIVE POLYMER ACTUATED DEVICES - Devices employing electroactive polymer actuators are disclosed. Acrylic dielectric material based actuators are optionally provided in which architectures are presented that allow for improved power output as compared with other known acrylic dielectric material based transducers. Such technology may be applied in motor-driven applications, lightweight flight applications and lighting applications among others. | 07-01-2010 |
| 20140246955 | ULTRASONIC MOTOR - The invention relates to an ultrasonic motor having a bracket, a plate-shaped ultrasonic actuator arranged in the bracket, said ultrasonic actuator having two opposing main surfaces and at least four side surfaces connecting the main surfaces to one another, and an element to be driven, wherein the ultrasonic actuator is pressed against the element to be driven, and the bracket comprises a first frame that supports the ultrasonic actuator and a second frame in which the first frame is supported and guided by bearing elements, and the bearing elements are pressed elastically against the first frame by the second frame. According to the invention, the first frame is pressed against the main surfaces of the ultrasonic actuator via the bearing elements, thus preventing or reducing movements of the ultrasonic actuator in a direction vertical to the main surfaces. | 09-04-2014 |
| 20160005951 | PIEZOELECTRIC VIBRATOR - The invention relates to a piezoelectric vibrator having a piezoelectric laminate in which oriented film layers made of a polylactic acid and conductive layers are laminated alternately and grippers gripping both ends of the piezoelectric laminate, wherein one of two conductive layers neighboring via an oriented film layer is short-circuited to a negative electrode and the other conductive layer is short-circuited to a positive electrode, the oriented film layers interposed between the respective conductive layers are laminated such that the oriented film layers expand and contract in the same direction when a current is applied, the piezoelectric laminate has two parallel surfaces which are parallel to the plane direction of the oriented film layers and two end faces A and B which are between the parallel surfaces and parallel to each other, and the gripped ends respectively include the end face A and the end face B. | 01-07-2016 |
| 310355000 | Spring bias | 6 |
| 20090146535 | PIEZOELECTRIC TRANSFORMER - A piezoelectric transformer includes: a piezoelectric transducer on whose outer surface an electrode is formed; a case housing the piezoelectric transducer; a terminal disposed to face the electrode; an elastic member in contact with both the electrode and the terminal in the case and having conductivity to bring the electrode and the terminal into mutual continuity; and a folder formed in the case and fixedly holding the elastic member to press-fit the elastic member between the electrode and the terminal. | 06-11-2009 |
| 20090212666 | Spring Element and Piezoelectric Actuator with the Spring Element - A spring element for pretensioning a piezoelectric actuator is specified, wherein the spring element has a tubular body with recesses. The recesses are each made in the form of a polygon with rounded corners. A piezoelectric actuator with such a spring element is also specified. | 08-27-2009 |
| 20100301710 | LINEAR PIEZOELECTRIC NANO-POSITIONER - A linear piezoelectric nano-positioner includes an armature configured to be translated along a longitudinal axis and having oppositely-disposed bearing surfaces and oppositely-disposed piezo surfaces, bearing sets engaged with the bearing surfaces of the armature to translatably support the armature, and piezoelectric elements engaged with the piezo surfaces of the armature to translate the armature along the longitude axis. | 12-02-2010 |
| 20130162107 | PIEZOELECTRIC ACTUATOR - A piezoelectric actuator of the invention includes a piezoelectric element, a base body having an upper face on which a lower end of the piezoelectric element abuts, and a case having an inner face on which an upper end of the piezoelectric element abuts, the case being configured to enclose the piezoelectric element, wherein the case includes a flange portion configured to be joined to the base body, and at least two bent portions are present on an inner face that is formed from a lower face of the flange portion of the case to the upper face of the base body on an enclosure space side of a junction between the case and the base body. | 06-27-2013 |
| 310356000 | 90 degrees to major surface and margin clamped only | 2 |
| 20110133606 | APPARATUS FOR HOLDING PIEZOELECTRIC VIBRATOR - An object is to provide a holding device for a piezoelectric vibrator, which eliminates vibration energy loss and a change in vibration characteristics, and is capable of supplying stable output with high efficiency. The holding device for a piezoelectric vibrator of the present invention includes: a support member ( | 06-09-2011 |
| 20140145563 | Tubular Spring For Receiving And Pretensioning An Actuator - A tubular spring is provided for receiving and pretensioning a piezoelectric or magnetostrictive actuator of an actuator unit, e.g., for actuating a fuel injector valve in internal combustion engines, wherein the tubular spring comprises at least two types of recesses, each comprising different maximum lateral extensions in the longitudinal direction of the tubular spring. The tubular spring is designed to comprise a uniform load distribution about the circumference of the tubular spring even without welding the longitudinal sides thereof abutting one another. | 05-29-2014 |
