Patent application number | Description | Published |
20130140956 | Ultrasonic Generator - An ultrasonic generator that includes an ultrasonic generating element and a first acoustic path. The ultrasonic generating element includes a frame including a through hole in its central portion, a first transducer being flat-shaped and bonded to a first principal surface of the frame, and a second transducer being flat-shaped and bonded to a second principal surface of the frame and is configured to generate ultrasonic waves in a buckling tuning-fork vibration mode where the first transducer and the second transducer vibrate in mutually opposite phases. The first acoustic path is disposed so as to be adjacent to at least one of both principal surfaces of the ultrasonic generating element and configured to compress the ultrasonic waves generated from the ultrasonic generating element and to allow the ultrasonic waves to propagate therethrough in a direction along the principal surface of the ultrasonic generating element. | 06-06-2013 |
20130239684 | VIBRATING GYROSCOPE - A vibrating gyroscope includes a frame body, first and second exciting members, detection members that detect vibration of the frame body, a first mass adding member, a second mass adding member, a first connecting member, and a second connecting member. The frame body includes first and second vibrating portions, first and second coupling portions, a first supporting portion, and a second supporting portion. The first and second coupling portions couple the first and second vibrating portions. The first supporting portion extends towards the second coupling portion from the first coupling portion. The second supporting portion extends towards the first coupling portion from the second coupling portion. The first and second exciting members and excite the first and second vibrating portions, respectively. The first and second mass adding members are provided at outer sides of the frame body, and are connected to the first and second vibrating portions, respectively. | 09-19-2013 |
20140139071 | ULTRASONIC TRANSDUCER - An ultrasonic transducer is provided that includes an ultrasonic wave generator having piezoelectric vibrators, and cases having ultrasonic wave emission holes and accommodating the ultrasonic wave generator. Acoustic paths in which air serves as a medium are formed by the ultrasonic wave generator and the and extend from the piezoelectric vibrators to the ultrasonic wave emission holes. Resonance of air is generated in the acoustic paths by ultrasonic waves generated by the piezoelectric vibrators in which the ultrasonic wave emission holes are open ends of the resonance. The piezoelectric vibrators are driven at a driving frequency at which the temperature-sound pressure characteristic for the resonance of air and the temperature-amplitude characteristic at the driving frequency of the piezoelectric vibrators have opposite tendencies. | 05-22-2014 |
20140203684 | ULTRASONIC GENERATION DEVICE - An ultrasonic generation device including an ultrasonic generation element having a frame, a first piezoelectric vibrator, and a second piezoelectric vibrator and configured to emit ultrasonic waves in a buckling tuning-fork vibration mode in which the first piezoelectric vibrator and the second piezoelectric vibrator vibrate in mutually opposite phases at the same frequency. Further, a housing receives the ultrasonic generation element and has ultrasonic emission ports, a first acoustic path extending from a vicinity of a vibration surface of the first piezoelectric vibrator to a vicinity of the ultrasonic emission ports, and a second acoustic path extending from a vicinity of a vibration surface of the second piezoelectric vibrator to the vicinity of the ultrasonic emission ports. | 07-24-2014 |
20140333182 | ULTRASONIC GENERATOR - An ultrasonic generator that is capable of increasing output sound pressure is provided. | 11-13-2014 |
Patent application number | Description | Published |
20110177584 | ACOUSTIC WAVE SENSOR AND DETECTION METHOD USING ACOUSTIC WAVE SENSOR - An acoustic wave sensor having significantly increased sensitivity and excellent sensing reproducibility and stability includes a piezoelectric substrate, an acoustic wave element including an electrode disposed on the piezoelectric substrate, and a reactive membrane which overlies the acoustic wave element and which is reduced in mass by direct or indirect chemical reaction with a measured substance. The measured substance is detected such that a change in mass applied to the acoustic wave element from the reactive membrane is detected by a change in frequency. | 07-21-2011 |
20130043767 | PIEZOELECTRIC ACTUATOR AND MANUFACTURING METHOD FOR PIEZOELECTRIC ACTUATOR - A piezoelectric actuator that includes a fixed electrode in a base substrate, a dielectric layer on the surface of the base substrate, a lower electrode that is at least partially separated from the base substrate, a piezoelectric layer on the surface of the lower electrode, and an upper electrode on the side of the surface of the piezoelectric layer. At least a portion of the upper electrode or the lower electrode serves as a movable electrode, which can be moved by distortion of the piezoelectric layer caused by application of a piezoelectric drive voltage. | 02-21-2013 |
20130127293 | METHOD FOR PRODUCING PIEZOELECTRIC THIN-FILM ELEMENT, PIEZOELECTRIC THIN-FILM ELEMENT, AND MEMBER FOR PIEZOELECTRIC THIN-FILM ELEMENT - Provided is a method for producing a piezoelectric thin-film element including a piezoelectric thin-film layer having good surface morphology and high crystallinity. The method includes forming a lower electrode layer on a substrate; forming a piezoelectric thin-film buffer layer on the lower electrode layer at a relatively low film-formation temperature; forming a piezoelectric thin-film layer on the piezoelectric thin-film buffer layer at a film-formation temperature that is higher than the film-formation temperature for the piezoelectric thin-film buffer layer; and forming an upper electrode layer on the piezoelectric thin-film layer. | 05-23-2013 |
Patent application number | Description | Published |
20110235232 | ELECTRONIC COMPONENT - An electronic component includes a laminate including a plurality of insulating layers that are laminated on each other. A capacitor conductor is embedded in the laminate and includes an exposed portion exposed between the insulating layers at a predetermined surface of the laminate. An external electrode is provided on the predetermined surface by direct plating so as to cover the exposed portion. An outer edge of the external electrode is spaced away from the exposed portion by about 0.8 μm or more. | 09-29-2011 |
20110235234 | ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING THE SAME - A laminate includes ceramic layers laminated to each other. Internal conductors are embedded in the laminate and include exposed portions that are exposed between the ceramic layers at a lower surface and an upper surface of the laminate. External electrodes are directly plated on the lower surface and the upper surface so as to cover the respective exposed portions. Regions of the lower surface at which the exposed portions are provided are arranged to protrude from the other regions of the lower surface, and regions of the upper surface at which the exposed portions are provided are arranged to protrude from the other regions of the upper surface. | 09-29-2011 |
20120169180 | LAMINATE TYPE ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREFOR - In a method of manufacturing a laminate type electronic component, when a heat treatment is carried out after plating films, which at least partially define external electrodes, are formed by growing plated depositions deposited on exposed ends of a plurality of internal electrodes in a component main body, the presence of the plating films may not only interfere with moisture release, but may also cause blisters or bulge defects in the plating films, while moisture such as a plating solution in the component main body is removed by evaporation. To avoid such problems, cuts to divide exposed ends into multiple sections are formed in extending sections of internal electrodes. Thus, plating films include slits extending in the stacking direction at locations corresponding to positions of the cuts. | 07-05-2012 |
20120236461 | CERAMIC ELECTRONIC COMPONENT - A ceramic electronic component includes a substantially rectangular ceramic element assembly, a first external electrode, and a second external electrode. The first external electrode includes at least one plating film including a first plating film disposed directly on the ceramic element assembly from outside. Likewise, the second external electrode includes at least one plating film including a second plating film disposed directly on the ceramic element assembly from outside. The first and second plating films each have a surface area per unit area equal to or larger than about 1.02 in plan view. | 09-20-2012 |
20130250474 | ELECTRONIC COMPONENT - An electronic component includes a laminate including a plurality of insulating layers that are laminated on each other. A capacitor conductor is embedded in the laminate and includes an exposed portion exposed between the insulating layers at a predetermined surface of the laminate. An external electrode is provided on the predetermined surface by direct plating so as to cover the exposed portion. An outer edge of the external electrode is spaced away from the exposed portion by about 0.8 μm or more. | 09-26-2013 |