Abstract: [Object] It is an object of the present invention to provide a liquid discharge head that is capable of holding a meniscus. [Solution] A flow channel member according to the present invention comprises a plurality of discharge elements 15 that discharges liquid; a plurality of first discrete flow channels 12, each allocated for each one of the discharge elements 15; a plurality of second discrete flow channels 14, each allocated for each one of the discharge elements 15; a first common flow channel 20 extending from one side D1a to another side D1b in a first direction D1 and connected commonly to the plurality of first discrete flow channels 12; a first opening 20a that connects the first common flow channel 20 and an outside; a second common flow channel 24 extending from the one side D1a to the other side D1b in the first direction D1 and connected commonly to the plurality of second discrete flow channels 14; and a second opening 24a that connects the second common flow channel 24 and the outside.

Abstract: An information processing apparatus receives a compressed file in which character string data with a first character code is compressed by a unit of character string including a single character or a plurality of characters. The information processing apparatus converts compression information included in the compressed file into converted compression information, the compression information mapping each of compressed character string data in the compressed file to each of corresponding unit of character string with the first character code, thereby the converted compression information mapping each of the compressed character string data in the compressed file to each of the corresponding unit of character string with a second character code. The information processing apparatus generates a converted compression file from the converted compression information and each of the compressed character string data.

Abstract: An information processing apparatus receives a compressed file in which character string data with a first character code is compressed by a unit of character string including a single character or a plurality of characters. The information processing apparatus converts compression information included in the compressed file into converted compression information, the compression information mapping each of compressed character string data in the compressed file to each of corresponding unit of character string with the first character code, thereby the converted compression information mapping each of the compressed character string data in the compressed file to each of the corresponding unit of character string with a second character code. The information processing apparatus generates a converted compression file from the converted compression information and each of the compressed character string data.

Abstract: Provided is an acoustic generator which has a high sound pressure at ultrahigh frequencies and which can suppress occurrence of large peak dips. An acoustic generator includes a film, a frame member disposed on an outer peripheral edge of the film, a piezoelectric element disposed on the film and inside the frame member, and a resin layer filled inside the frame member so as to cover the piezoelectric element.

Abstract: The present invention provides a liquid discharge head that causes less deviation in a discharge direction of a liquid from a direction orthogonal to a discharge hole surface, and a recording device using the liquid discharge head. The liquid discharge head of the present invention includes a discharge hole, a discharge hole surface having an opening of the discharge hole, a pressurizing chamber, and a flow channel connecting the discharge hole and the pressurizing chamber. The flow channel includes a nozzle part and a partial flow channel.

Abstract: The present invention provides a liquid discharge head that causes less deviation in a discharge direction of a liquid from a direction orthogonal to a discharge hole surface, and a recording device using the liquid discharge head. The liquid discharge head of the present invention includes a discharge hole, a discharge hole surface having an opening of the discharge hole, a pressurizing chamber, and a flow channel connecting the discharge hole and the pressurizing chamber. The flow channel includes a nozzle part and a partial flow channel.

Abstract: A system providing effective adjustment of an advertising volume is disclosed. Upon receiving use information indicating that advertising information has been used in a terminal device from the terminal device, a variable parameter corresponding to an electronic commodity with which the advertising information is associated on the terminal device and/or a variable parameter corresponding to an electronic commodity as information included in the advertising information is updated and then the advertising information associated with the electronic commodity to be transmitted is controlled on the basis of the variable parameters after the updating.

Abstract: Provided is an acoustic generator which has a high sound pressure at ultrahigh frequencies and which can suppress occurrence of large peak dips. An acoustic generator includes a film, a frame member disposed on an outer peripheral edge of the film, a piezoelectric element disposed on the film and inside the frame member, and a resin layer filled inside the frame member so as to cover the piezoelectric element.

Abstract: Provided is an acoustic generator which has a high sound pressure at ultrahigh frequencies and which can suppress occurrence of large peak dips. An acoustic generator includes a film, a frame member disposed on an outer peripheral edge of the film, a piezoelectric element disposed on the film and inside the frame member, and a resin layer filled inside the frame member so as to cover the piezoelectric element.

Abstract: In oscillating an oscillating body, a control unit obtains a load torque due to the gravity acting on a drive motor at least at one angular position defined about an axis of rotation. The control unit calculates a specified maximum acceleration depending upon if the load torque Q is acting in a direction in which it hinders the acceleration or deceleration of the drive motor 15 or is acting in a direction in which it assists the acceleration or deceleration. An acceleration for the oscillating body is set so as not to be greater than the calculated specified maximum acceleration. The control unit adjusts the acceleration of the oscillating body depending upon the load torque of when the oscillating body 13 is accelerating or decelerating.

Abstract: A motor control apparatus for synchronously controlling a master axis motor for driving a master axis and a slave axis motor for driving a slave axis, includes: a master axis position detector which outputs position data of the master axis and a reference signal with a predetermined fixed period; a master axis receiving circuit which receives the position data and the reference signal output from the master axis position detector; a master axis computation circuit which computes a master axis error representing a difference between the position data received by the master axis receiving circuit and the position data acquired at the time of the reception of the reference signal; and a slave axis motor control unit which controls the operation of the slave axis motor by using the master axis error as a command for synchronizing the operation of the master axis motor.

Abstract: A motor control apparatus for synchronously controlling a master axis motor for driving a master axis and a slave axis motor for driving a slave axis, includes: a master axis position detector which outputs position data of the master axis and a reference signal with a predetermined fixed period; a master axis receiving circuit which receives the position data and the reference signal output from the master axis position detector; a master axis computation circuit which computes a master axis error representing a difference between the position data received by the master axis receiving circuit and the position data acquired at the time of the reception of the reference signal; and a slave axis motor control unit which controls the operation of the slave axis motor by using the master axis error as a command for synchronizing the operation of the master axis motor.

Abstract: A motor controller includes: a converter circuit for converting AC power to DC power; an inverter circuit connected to a DC side of the converter circuit and converting DC power to AC power for driving a motor or converting AC power regenerated from the motor to DC power; an energy storage unit connected to the DC side of the converter circuit and the inverter circuit and storing or outputting DC power; and a control unit controlling amount of DC power to be stored or output in/from the energy storage unit on the basis of a motor operation instruction instructing operation of the motor.

Abstract: In oscillating an oscillating body, a control unit obtains a load torque due to the gravity acting on a drive motor at least at one angular position defined about an axis of rotation. The control unit calculates a specified maximum acceleration depending upon if the load torque Q is acting in a direction in which it hinders the acceleration or deceleration of the drive motor 15 or is acting in a direction in which it assists the acceleration or deceleration. An acceleration for the oscillating body is set so as not to be greater than the calculated specified maximum acceleration. The control unit adjusts the acceleration of the oscillating body depending upon the load torque of when the oscillating body 13 is accelerating or decelerating.

Abstract: A controller of an industrial machine provided with an electric motor, a peripheral apparatus and an amplifier includes a motor power-consumption calculation section, a power loss calculation section, a fixed power-consumption calculation section, and a total power-consumption calculation section. The motor power-consumption calculation section calculates motor power consumption by decomposing a motor current into a Q-phase current value and a D-phase current value, and multiplying the Q-phase current value with a motor rotation speed and a motor torque constant. The power loss calculation section calculates sum power loss of the motor and amplifier. The fixed power-consumption calculation section calculates fixed power consumption of the peripheral apparatus.

Abstract: First shaped item with shaft part is produced by forward extrusion forming of work, and further, upset forming thereof is carried out to thereby obtain second shaped item with large-diameter part. Subsequently, backward extrusion forming of the second shaped item is carried out to thereby obtain third shaped item having not only cup part provided with ball rolling grooves but also circular diameter expansion portion provided at the mouth area of the inside wall of the cup part along the circumferential direction in such a fashion that the diameter is gradually expanded from the bottom side toward the opening side. Outer ring member for constant-velocity joint is obtained by further subjecting the third shaped item to low-temperature annealing treatment, shot blast treatment and lubricating chemical coating treatment, and thereafter to ironing forming.

Abstract: A motor drive includes a dynamic braking circuit for producing a deceleration torque utilizing a braking force caused by a synchronous motor acting as a generator when the synchronous motor is deenergized. The motor drive apparatus is equipped with a dynamic braking circuit fault detection capability, a DC power supply which is obtained by rectifying input AC power, voltage application function for applying a voltage to the windings of the synchronous motor and to the dynamic braking circuit for a predetermined length of time by switching power transistors connected to the DC power supply, current detection unit for detecting the value of a current flowing from the power transistors, and fault checking unit for checking the dynamic braking circuit for the presence or absence of a fault, based on the current value detected by the current detection unit and on a predefined threshold value.

Abstract: A press machine controller (10) for controlling a press machine (30) having a servo motor (41) to drive a slide (38) via a reduction mechanism (37) changed in reduction ratio in accordance with the position of the slide (38) is disclosed. The device includes a command generator (20) for generating at least one of a position command, a speed command and a torque command for the servo motor (41); a vibration command generator (13) for generating a vibration command based on a parameter preset for the press machine controller (10); a slide position detector (12) for detecting the position of the slide (38); and a vibration command adding portion (21, 22, 23) for adding the vibration command to any one of the position command, the speed command and the torque command for the servo motor (41) in the case where the slide position is in a predetermined range. The press machine, even if stopped with the slide at the bottom dead center, can be restarted with a small torque.

Abstract: A mechanical system includes a plurality of amplifier groups each having a common power source unit connected to a higher-level power source and a plurality of power supply units for supplying power to servo motors from the common power source unit. A servo motor drive control device of the mechanical system includes a plurality of amplifier group electric power detection units each determining an electric energy of the corresponding one of the amplifier groups.

Abstract: First and second screens are set for a tool path display apparatus for displaying a path of the tip of a tool attached to a machine tool. The first screen displays the three-dimensional path of the tip of the tool obtained by synthesizing the position information of the drive axes of a 5-axis machine tool. The second screen displays the waveforms of the position deviations and current instructions of the drive axes in chronological order. When a part (line segment) of the three-dimensional path of the tip of the tool is selected on the first screen, the display attribute of the corresponding time area is changed on the second screen so that the time area can be identified.