Abstract: A liquid injection device includes: a chamber which supply of the liquid and connects with the injection nozzle; a chamber volume varying unit to which driving voltage is applied to reduce the volume of the chamber to a volume smaller than the volume of the chamber before the driving voltage is applied; a driving voltage applying unit which applies the driving voltage to the chamber volume varying unit with the liquid supplied to the chamber; a pseudo noise data memory unit which stores sound data of pseudo noise having audible frequency components contained in driving noise generated when the driving voltage is applied to the chamber volume varying unit; and a pseudo noise outputting unit which outputs the pseudo noise by using the sound data of the pseudo noise such that the sound pressure of the driving noise decreases within the audible frequency range when the driving voltage is applied.

Abstract: A liquid injection device includes: a chamber which supply of the liquid and connects with the injection nozzle; a chamber volume varying unit to which driving voltage is applied to reduce the volume of the chamber to a volume smaller than the volume of the chamber before the driving voltage is applied; a driving voltage applying unit which applies the driving voltage to the chamber volume varying unit with the liquid supplied to the chamber; a pseudo noise data memory unit which stores sound data of pseudo noise having audible frequency components contained in driving noise generated when the driving voltage is applied to the chamber volume varying unit; and a pseudo noise outputting unit which outputs the pseudo noise by using the sound data of the pseudo noise such that the sound pressure of the driving noise decreases within the audible frequency range when the driving voltage is applied.

Abstract: A non-contact electric power transmission circuit according to an embodiment of the invention includes an electric power transmission circuit and an electric power receiving circuit. The electric power transmission circuit includes a full bridge circuit and a resonant type full bridge circuit. A direct-current power supply is used as an input of the full bridge circuit, the full bridge circuit includes two sets of switching elements, two switching elements being connected in series in each set of the switching elements, a drive circuit alternately feeds a pulse signal to gates of the switching elements to perform switching of the direct-current input in the full bridge circuit, and a serial resonant circuit of a resonant capacitor and an electric power transmission coil is connected to an output of the full bridge circuit in the resonant type full bridge circuit. The electric power receiving circuit includes an electric power receiving coil and a rectifying and smoothing circuit.

Abstract: Fluid is pressurized and supplied to a fluid chamber with a fluid pressurizing and supplying unit. The pressurized fluid within the fluid chamber is ejected through an injection nozzle by reduction of the volume of the fluid chamber caused by applying a driving voltage to a volume varying unit. In applying the driving voltage to the volume varying unit, the effect imposed on fluid injection by pressure fluctuations of the fluid pressurized and supplied to the fluid chamber is compensated by changing the voltage waveform of the driving voltage. When the pressure of the supply flow amount is decreased to a pressure lower than a predetermined pressure, the time intervals of the driving waveform are corrected. The maneuverability of a fluid injection device does not deteriorate even when the pressure of the fluid pressurized and supplied to the fluid chamber fluctuates.

Abstract: A non-contact power transfer apparatus includes a power transmission unit including a power transmission coil, a power transmission circuit, a current detection circuit, and a unit detection means and a first microcomputer with a control circuit for controlling each of the circuits. The non-contact power transfer apparatus also includes a power reception unit having a power reception coil, a rectification smoothing circuit, a series regulator, a charge battery unit with a rechargeable battery, a switching element for pulse-charging and a second microcomputer with a control circuit for controlling the series regulator and the switching element. As such, the power reception unit receives power via the power reception coil, while the rectification smoothing circuit and series regulator generate a set voltage. The set voltage is used to start the second microcomputer to apply an initial reset and a pulse pattern as an ID authentication pattern to the switching element.

Abstract: In order to miniaturize a piezoelectric body module, in which a rhombus-shaped electronic part 4 and a polygonal-shaped electronic part 5 are arranged on a rectangular substrate 2: the rhombus-shaped electronic part 4 is arranged on the substrate 2 such that a side 105 of the substrate 2 and a side 101 of the rhombus-shaped electronic part 4 are parallel to each other; and the polygonal-shaped electronic part 5 is arranged on the substrate 2 such that a side 104 of the rhombus-shaped electronic part 4 and a side 109 of the polygonal-shaped electronic part 5 are parallel to each other.

Abstract: A semiconductor wafer includes a plurality of predetermined separation lines extending from an upper surface to a bottom surface; and a semiconductor substrate including a plurality of chip regions segmented by the predetermined separation lines. Tensile stress is applied to regions of the semiconductor substrate provided with the predetermined separation lines.

Abstract: A surgical instrument includes: a fluid chamber to which fluid is supplied; a pulsation generator which produces pulsed flow by pressurizing the fluid supplied to the fluid chamber; an outlet channel which communicates with the fluid chamber through which the pulsed flow is transmitted; a fluid ejection opening which communicates with the outlet channel through which pulse flow is ejected toward an ejection target; a suction opening provided in the vicinity of the fluid ejection opening; and a fluid suctioning unit which suctions the fluid through the suction opening, wherein the opening area at an outlet opening end of the fluid ejection opening on the side near the ejection target is larger than the opening area at an inlet opening end of the fluid ejection opening on the side near the outlet channel.

Abstract: A fluid ejection device for ejecting a fluid to incise or excise a target includes: a fluid supplying unit which supplies the fluid; an operation unit to which the fluid supplied from the fluid supplying unit continues; a fluid ejection tube which ejects the fluid continuing to the operation unit; an ejection mode selecting unit which allows a predetermined ejection mode to be selected; an acceleration sensor which detects an operation acceleration of the operation unit; and a controller which controls ejection of the fluid, using a preset acceleration that is set on the basis of the ejection mode that is selected, and the operation acceleration detected by the acceleration sensor.

Abstract: Disclosed is a noncontact electric power transmission system having a power transmitter circuit section 10 and a power receiver circuit section 30 which are adapted to be coupled to transmit electric power from a transmitter coil Lp provided in the power transmitter circuit section 10 to a receiver coil Ls provided in the power receiver circuit section 30, in a noncontact manner by means of electromagnetic induction.

Abstract: A fluid ejection device includes a pulsation generator which converts a fluid into a pulsed fluid, a fluid supply unit (supply pump) which supplies the fluid to the pulsation generator, an ejection tube which has an ejection opening communicating with the pulsation generator, a suction tube into which the ejection tube is inserted with play, a suction channel provided between the suction tube and the ejection tube, a suction opening provided at an end of the suction channel in a vicinity of the ejection opening, and a suction unit (suction pump) which sucks fluid in such a manner that the fluid introduced from the suction opening passes through the suction channel. The ejection opening is held by an inner circumferential part of the suction opening. According to this structure, vibration of the ejection tube in the vicinity of the ejection opening can be reduced.

Abstract: An electrostatic ultrasonic transducer includes a first electrode that has through-holes, a second electrode that has through-holes, and a vibrating membrane that is disposed such that the through-holes of the first electrode and the through-holes of the second electrode form a pair, interposed between a pair of electrodes composed of the first electrode and the second electrode, and having a conductive layer applied with a direct current bias voltage. The first electrode and the second electrode each have counter electrode portions that are formed in the through-holes to face the vibrating membrane, and a modulated wave, which is obtained by modulating a carrier wave in an ultrasonic frequency band with a signal wave in an audible frequency band, is applied between the pair of electrodes.

Abstract: Liquid to be injected from an injection nozzle is supplied through a liquid supply channel toward the injection nozzle. Negative pressure for sucking the liquid injected from the injection nozzle through a suction port is produced by a suction unit and guided through a suction channel toward the suction port. A bypass channel which bypasses the liquid supply channel on the upstream side with respect to the injection nozzle and connects with the suction channel is provided. The bypass channel is opened and closed by an opening and closing unit. According to this structure, flow of unnecessary liquid from the injection nozzle can be reduced by opening the opening and closing unit while injection of liquid is stopping.

Abstract: Fluid is pressurized and supplied to a fluid chamber with a fluid pressurizing and supplying unit. The pressurized fluid within the fluid chamber is ejected through an injection nozzle by reduction of the volume of the fluid chamber caused by applying a driving voltage to a volume varying unit. In applying the driving voltage to the volume varying unit, the effect imposed on fluid injection by pressure fluctuations of the fluid pressurized and supplied to the fluid chamber is compensated by changing the voltage waveform of the driving voltage. When the pressure of the supply flow amount is decreased to a pressure lower than a predetermined pressure, the time intervals of the driving waveform are corrected. The maneuverability of a fluid injection device does not deteriorate even when the pressure of the fluid pressurized and supplied to the fluid chamber fluctuates.

Abstract: A liquid injection device includes: a chamber which supply of the liquid and connects with the injection nozzle; a chamber volume varying unit to which driving voltage is applied to reduce the volume of the chamber to a volume smaller than the volume of the chamber before the driving voltage is applied; a driving voltage applying unit which applies the driving voltage to the chamber volume varying unit with the liquid supplied to the chamber; a pseudo noise data memory unit which stores sound data of pseudo noise having audible frequency components contained in driving noise generated when the driving voltage is applied to the chamber volume varying unit; and a pseudo noise outputting unit which outputs the pseudo noise by using the sound data of the pseudo noise such that the sound pressure of the driving noise decreases within the audible frequency range when the driving voltage is applied.

Abstract: A fluid injection device includes: a pulse generator which converts fluid into pulse flow; a suction pipe projecting from the pulse generator; an injection pipe which is eccentrically inserted into the suction pipe such that the outer circumferential surface of the injection pipe contacts the inner circumferential surface of the suction pipe, and has an injection opening communicating with the pulse generator; and a suction channel and a suction opening formed between the inner circumferential surface of the suction pipe and the outer circumferential surface of the injection pipe, wherein the injection pipe is fixed to the inner circumferential surface of the suction pipe in the vicinity of the injection opening.

Abstract: A liquid injection device includes: a chamber to which the liquid to be injected is supplied and the injection nozzle is connected; a pump that pumps the liquid into the chamber; a volume varying unit that varies the volume of the chamber by being deformed according to a drive voltage applied thereto; and a drive voltage applying unit that applies the drive voltage having a predetermined voltage waveform to the volume varying unit in a state in which the liquid is supplied to the chamber, wherein the pump is a unit that pumps the liquid to the chamber in a state involving the pressure variations, and the drive voltage applying unit is a unit that applies the drive voltage to the volume varying unit while compensating the influence applied by the pressure variations of the pumped to the chamber on injection by varying the voltage waveform of the drive voltage.

Abstract: The present invention provides a power transmission transformer of which workability in implementing and reliability of connection are considered in a noncontact power transfer device using individual self-oscillation circuits. The power transmission transformer for a noncontact power transfer device including a transmitting coil L1 and a drive coil L2 for self-oscillation on a power transmission device side includes a bobbin in which the transmitting coil and the drive coil L2 are disposed, in which the transmitting coil and the drive coil L2 are configured by an air-core coil using self-bonding wire, and the bobbin 1 includes a winder spindle 1a, 1b on both surfaces opposed to each other across a collar 2 formed of a flat plate, and a mating portion 3 for mating with an external portion in an end portion of the winder spindle 1b, and the drive coil L2 is mounted on the winder spindle 1b and the transmitting coil L1 is mounted on the other, opposed winder spindle 1a across the collar.

Abstract: A fluid injection device that injects a fluid to a biological tissue from an injection opening to excise the biological tissue, includes: a fluid injection means that injects the fluid from the injection opening; and a suction means that sucks at least one of the injected fluid and the excised biological tissue by periodically varying a negative suction pressure.

Abstract: A fluid ejection apparatus ejecting fluid from an ejection port, includes: a suction port provided at a position apart from the ejection port and applied with a negative pressure; and a fluid channel provided between the vicinity of the ejection port and the suction port, and configured to suck the fluid in the vicinity of the ejection port by the surface tension of the fluid and move the same toward the suction port.