Abstract: It becomes possible to obtain high sound pressure in a high frequency domain by a capacitive ultrasonic transducer which comprises a membrane on which one electrode is formed, a cavity constructed in its backface, and a substrate on which these are mounted and supported and on whose surface an electrode is provided, on a surface in an ultrasonic transmission and reception side, characterized in that the membrane comprises tow or more layers, and at least one layer of them comprises a high dielectric constant film.

Abstract: An ultrasound-guided ablation method captures an objective area to be ablated in an ultrasound scan area of an ultrasound transducer and delineates the objective area on an ultrasound image; specifies an ablation target area to display the ablation target area with a margin necessary for ablating the objective area on the ultrasound image processed by an ultrasound observation device and displayed on a display device; ablates, by an ablation device, the ablation target area displayed on the ultrasound image; and checks, on the ultrasound image, that an ablated area ablated by the ablation device has reached the ablation target area displayed on the ultrasound image.

Abstract: An ultrasound observation apparatus of the invention includes: an ultrasound probe portion capable of two-dimensional scanning of an ultrasound beam; a transmission/reception control section for controlling a transmission/reception direction of the ultrasound beam by the ultrasound probe portion; a B-mode image calculation section for generating a B-mode image on a scanning plane based on a result of scanning of the ultrasound beam; a storage section for storing a predetermined sample image determined according to a shape of a treatment instrument in a case where a central axis of the treatment instrument for performing a treatment on a subject and the scanning plane agree with each other; and a correlation calculation section for calculating a correlation value between the B-mode image and the sample image, wherein the transmission/reception control section moves the scanning plane such that the correlation value becomes the maximum.

Abstract: Within the tip portion of a cylindrical shaped sheath a capacitive ultrasonic transducer which is an array type two-dimensionally arrayed on the outer surface of the cylindrical face is disposed. Capacitive ultrasonic transducer units employ m capacitive ultrasonic transducer elements arrayed in the longitudinal direction of the cylindrical face as a division unit, thereby providing an arrangement wherein the respective capacitive ultrasonic transducer units are readily disposed in the circumferential direction, whereby radial scanning or the like can be performed within a body cavity.

Abstract: An ultrasonic probe apparatus which applies a RF pulse signal with a DC bias signal superimposed thereon to c-MUTs and transmits/receives an ultrasound wave is configured such that a transmission control system includes bias regulators which regulate the voltage value of the DC bias signal, a reception control system has a plurality of different frequency band pass filtering characteristics including at least those for a low pass and high pass and a frequency band pass filtering processing section which can select at least one frequency band pass filtering characteristic from those frequency band pass filtering characteristics. The apparatus controls voltage settings of the bias regulators in conjunction with the selection of frequency band pass filtering characteristics of the frequency band pass filtering processing section.

Abstract: A capacitive micromachined ultrasonic transducer having an ultrasonic wave transmission/reception surface formed by arranging a plurality of transducer cells each of which includes a membrane having a first electrode and a supporting film for supporting the first electrode, and also includes a second electrode arranged being opposite to the first electrode and being spaced apart from the first electrode at a prescribed interval, wherein: the transducer cells are arranged on the basis of resonant frequencies of the transducer cells.

Abstract: An ultrasound-guided ablation method captures an objective area to be ablated in an ultrasound scan area of an ultrasound transducer and delineates the objective area on an ultrasound image; specifies an ablation target area to display the ablation target area with a margin necessary for ablating the objective area on the ultrasound image processed by an ultrasound observation device and displayed on a display device; ablates, by an ablation device, the ablation target area displayed on the ultrasound image; and checks, on the ultrasound image, that an ablated area ablated by the ablation device has reached the ablation target area displayed on the ultrasound image.

Abstract: A synchronous controller is formed with a cycle master module and one or more control modules doubly connected through a synchronous bus and an event bus. The event bus is used for transmitting data with a larger volume. The control modules each cyclically carry out execution of a user program for controlling an object apparatus to be controlled. The cycle master module exchanges data with the control modules through the event bus and the synchronous bus. Each of the control modules carries out one cycle of the execution of the user program by using reception of synchronous data transmitted from the cycle master module through the synchronous bus as a trigger.

Abstract: It becomes possible to obtain high sound pressure in a high frequency domain by a capacitive ultrasonic transducer which comprises a membrane on which one electrode is formed, a cavity constructed in its backface, and a substrate on which these are mounted and supported and on whose surface an electrode is provided, on a surface in an ultrasonic transmission and reception side, characterized in that the membrane comprises tow or more layers, and at least one layer of them comprises a high dielectric constant film.

Abstract: It becomes possible to obtain high sound pressure in a high frequency domain by a capacitive ultrasonic transducer which comprises a membrane on which one electrode is formed, a cavity constructed in its backface, and a substrate on which these are mounted and supported and on whose surface an electrode is provided, on a surface in an ultrasonic transmission and reception side, characterized in that the membrane comprises two or more layers, and at least one layer of them comprises a high dielectric constant film.

Abstract: A capacitive micromachined ultrasonic transducer having an ultrasonic wave transmission/reception surface formed by arranging a plurality of transducer cells each of which includes a membrane having a first electrode and a supporting film for supporting the first electrode, and also includes a second electrode arranged being opposite to the first electrode and being spaced apart from the first electrode at a prescribed interval, wherein: the transducer cells are arranged on the basis of resonant frequencies of the transducer cells.

Abstract: An ultrasonic diagnosis apparatus according to the present invention includes an ultrasonic endoscope having ultrasonic transducers for scanning ultrasonic wave in a living body three-dimensionally, an ultrasonic image creating portion of an ultrasonic observing apparatus for creating ultrasonic volume data based on an ultrasonic signal captured by the ultrasonic endoscope, a two-dimensional image select knob, keyboard, trackball, computing/control portion and display control portion for selecting a tomographic plane from the ultrasonic volume data by designating the angle of rotation about the straight line through two points designated on the ultrasonic volume data as the axis of rotation, and a monitor for displaying the tomographic plane selected during a scanning operation as a two-dimensional ultrasonic image.

Abstract: Within the tip portion of a cylindrical shaped sheath a capacitive ultrasonic transducer which is an array type two-dimensionally arrayed on the outer surface of the cylindrical face is disposed. Capacitive ultrasonic transducer units employ m capacitive ultrasonic transducer elements arrayed in the longitudinal direction of the cylindrical face as a division unit, thereby providing an arrangement wherein the respective capacitive ultrasonic transducer units are readily disposed in the circumferential direction, whereby radial scanning or the like can be performed within a body cavity.

Abstract: An ultrasonic probe apparatus which applies a RF pulse signal with a DC bias signal superimposed thereon to c-MUTs and transmits/receives an ultrasound wave is configured such that a transmission control system includes bias regulators which regulate the voltage value of the DC bias signal, a reception control system has a plurality of different frequency band pass filtering characteristics including at least those for a low pass and high pass and a frequency band pass filtering processing section which can select at least one frequency band pass filtering characteristic from those frequency band pass filtering characteristics. The apparatus controls voltage settings of the bias regulators in conjunction with the selection of frequency band pass filtering characteristics of the frequency band pass filtering processing section.

Abstract: A unit such as an I/O unit for a programmable controller stores a user program in a RAM but at least a portion of this user program is made into a library. At least a portion and maybe the whole of this user program is made into library and stored in a flash memory. The program thus made into a library can be executed when necessary but the flash memory is made in accessible by the tool and the program stored therein is protected from unauthorized person trying to read its content.

Abstract: A synchronous controller is formed with a cycle master module and one or more control modules doubly connected through a synchronous bus and an event bus. The event bus is used for transmitting data with a larger volume. The control modules each cyclically carry out execution of a user program for controlling an object apparatus to be controlled. The cycle master module exchanges data with the control modules through the event bus and the synchronous bus. Each of the control modules carries out one cycle of the execution of the user program by using reception of synchronous data transmitted from the cycle master module through the synchronous bus as a trigger.

Abstract: A unit such as an I/O unit for a programmable controller stores a user program in a RAM but at least a portion of this user program is made into a library. At least a portion and maybe the whole of this user program is made into library and stored in a flash memory. The program thus made into a library can be executed when necessary but the flash memory is made in accessible by the tool and the program stored therein is protected from unauthorized person trying to read its content.

Abstract: A film capacitor having moisture resistance includes a capacitor element having (a) a multilayer structure made of stacked dielectric films or a wound dielectric film, each dielectric film having a metallic layer formed on its surface, and (b) a pair of outer electrodes electrically connected to the metallic layer, and a coating layer covering the capacitor element. The coating layer is made from at least one polysiloxane, at least one organometallic compound or a combination of the polysiloxane and the organometallic compound, wherein the organometallic compound is selected from the group consisting of organoaluminum compounds, organosilicon,compounds, organotin compounds and organotitanium compounds.