| Patent application number | Description | Published |
|---|
| 20080200811 | Ultrasonic transducer, method for manufacturing ultrasonic transducer, and ultrasonic endoscope - An ultrasonic transducer according to the invention includes a flexible sheet, a rigid body portion including a lower electrode made of at least a thin-film conductive material on a surface of the flexible sheet, a dividing portion which divides the rigid body portion into segments, and a plurality of transducer elements including the divided rigid body portion, has at least one transducer cell composed of one of the segments, an insulating partition portion bonded to the segment, an air gap portion surrounded by the partition portion, an upper electrode opposed to the lower electrode extending to the partition portion to sandwich the air gap portion therebetween, and an upper insulating layer formed on the upper electrode, and includes an upper protection film which continuously covers a surface portion of the transducer elements and the dividing portion. | 08-21-2008 |
| 20090005688 | ULTRASOUND ENDOSCOPE - An ultrasound endoscope has an ultrasound probe which is disposed at a distal end side of a distal end rigid portion configuring a distal end portion out of a flexible tube portion, a bending portion and the distal end rigid portion configuring an insertion portion, and forms an ultrasound scanning surface having a normal line in a direction orthogonal to an endoscope insertion axis L | 01-01-2009 |
| 20090058228 | ULTRASONIC TRANSDUCER, METHOD OF MANUFACTURING ULTRASONIC TRANSDUCER, ULTRASONIC DIAGNOSTIC APPARATUS, AND ULTRASONIC MICROSCOPE - A ultrasonic transducer of the invention comprises: a transducer cell including a first electrode and a second electrode disposed separated from the first electrode by an air gap portion; and an electret for applying a potential difference between the first electrode and the second electrode. The electret is disposed in a region where at least a part thereof does not overlap with the transducer cell when viewed from a transmitting direction of ultrasonic waves. | 03-05-2009 |
| 20090093725 | ULTRASOUND PROBE AND ULTRASOUND ENDOSCOPE INCLUDING ULTRASOUND PROBE - A transducer wiring pad group provided in a distal end portion of an ultrasound transducer printed circuit board provided with signal patterns that transmit and receive signals to and from a plurality of ultrasound transducers, a flexible printed circuit board wiring pad group arranged in a longitudinal axis direction of the ultrasound transducer printed circuit board, a second signal pattern group that is connected between the transducer wiring pad group and the flexible printed circuit board wiring pad group and bends at substantially degrees in the middle thereof, and a relay flexible printed circuit board that is connected to the flexible printed circuit board wiring pad group and changes a direction of a signal pattern into the longitudinal axis direction are provided. | 04-09-2009 |
| 20090204004 | ULTRASOUND TRANSDUCER AND ULTRASOUND DIAGNOSTIC APPARATUS - This invention includes a first electrode which is fixed on a base, a vibration film which is disposed to oppose the first electrode with an air and vacuum portion between the vibration film and the first electrode, a second electrode which is supported by the vibration film and is connected to a predetermined potential, a ferroelectric which is electrically connected to the first electrode, and a driving portion that applies, to the first electrode, a driving signal which is a monopulse voltage signal and whose polarity is reversed every time the driving signal is outputted. | 08-13-2009 |
| 20090262605 | ULTRASOUND TRANSDUCER AND ELECTRONIC DEVICE - An ultrasound transducer includes a substrate, an ultrasound transducer cell placed on one surface of the substrate and having a lower electrode, a first gap portion placed on the lower electrode and an upper electrode placed on the first gap portion, a first conductive layer placed on the other surface of the substrate and electrically connected to one of the lower electrode and the upper electrode, an electret film placed on the first conductive layer, an insulating layer placed on the electret film, and a second conductive layer placed on the insulating layer and electrically connected to the one of the lower electrode and the upper electrode not electrically connected to the first conductive layer. | 10-22-2009 |
| 20100251823 | ACOUSTIC TRANSDUCER AND IMAGE GENERATION APPARATUS - An acoustic transducer has a first transducer which transmits an acoustic primary wave having two frequency components, and a second transducer which, in order to receive a reflected wave of an acoustic secondary wave generated with propagation of the acoustic primary wave, is disposed so that a region for receiving the reflected wave is superimposed on the first transducer as seen along the direction of transmission of the acoustic primary wave. | 10-07-2010 |
| 20100274138 | ULTRASOUND TRANSDUCER, ELECTRONIC DEVICE AND ULTRASOUND ENDOSCOPE - An ultrasound transducer of the present invention includes elements each provided with an electromechanical conversion element that converts an electric signal inputted between a first electrode and a second electrode into vibration, an array section made up of n elements in a row direction and m elements in a column direction (nm) arranged in a matrix form, and an array forming section that switches between a one-dimensional array state column-wise made up of m element groups formed by electrically connecting the first electrode terminals neighboring in the row direction out of the first electrode terminals in the element groups arranged on the same column and a one-dimensional array state row-wise made up of n element groups formed by electrically connecting the first electrode terminals neighboring in the column direction out of the first electrode terminals in the element groups arranged on the same row in the array section. | 10-28-2010 |
| 20110036808 | ULTRASONIC TRANSDUCER, ULTRASONIC TRANSDUCER FABRICATION METHOD, AND ULTRASONIC ENDOSCOPE - An ultrasonic transducer according to the present invention includes: two or more ultrasonic transducer cells, each of which has a lower electrode, a first insulating layer placed on the lower electrode, a cavity placed on the first insulating layer, a second insulating layer placed on the cavity, and an upper electrode placed above the second insulating layer; channels which communicate the cavities with each other; the second insulating layer placed on the channels; holes formed in the second insulating layer placed on the channels; and sealing portions which seal the holes, where that part of the sealing portions which enters the channels is the same in cross-sectional shape as the holes. | 02-17-2011 |
