Abstract: An ink-jet head includes a flow passage member formed with: a first common flow passage; a first ink supply port; first individual flow passages; a second common flow passage; a second ink supply port; and second individual flow passages, first pressure generators, second pressure generators, a first conductive part, and a second conductive part. The first ink supply port is positioned on one side in the first direction, the second ink supply port is positioned on the other side in the first direction, an end portion of the first conductive part positioned nearer to a control circuit is positioned on the other side in the first direction, and an end portion of the second conductive part positioned nearer to the control circuit is positioned on the one side in the first direction.

Abstract: A semiconductor module includes a semiconductor element, a heat dissipation member thermally connected to the semiconductor element, a resin member, a signal terminal, and a wiring member. The resin member accommodates the semiconductor element, the heat dissipation member, and the wiring member. At least a part of the heat dissipation member is exposed from the resin member. The wiring member is a member more flexible than the signal terminal, and includes an electrically insulating resin layer and a metal layer supported by the resin layer. The wiring member connects a signal pad of the semiconductor element and the signal terminal.

Abstract: An electric discharge machine and an electric discharge machining method for the electric discharge machine are provided. The electric discharge machine includes a circulation pump for pressure-feeding a work fluid in a dirty fluid tank to a filter; a jetting pump for pressure-feeding the work fluid in the clean fluid tank to a jetting nozzle; a feeding pump for pressure-feeding the work fluid in the clean fluid tank to the work tank; and a pump controller for inverter-controlling the circulation pump, the jetting pump, and the feeding pump. The pump controller includes a jetting pump controller configured to set an inverter frequency of the jetting pump, and a feeding pump controller configured to acquire the flow rate of the inverter-controlled jetting pump and set an inverter frequency of the feeding pump based on the flow rate of the inverter-controlled jetting pump.

Abstract: A wire electric discharge machining apparatus includes a wire electrode and upper and lower guide devices guiding the wire electrode, and includes: a power conductor moving in a first direction as a horizontal axis direction and supplying power by contacting the wire electrode; and a fixing device fixing the power conductor in the lower guide device and switchable between a fixed state, in which a movement of the power conductor relative to the lower guide device in a second direction as another horizontal axis direction orthogonal to the first direction is not possible, and a non-fixed state in which such relative movement is possible. The wire electric discharge machining apparatus includes: a pressing device, movable relative to the lower guide device and pressing the power conductor in the non-fixed state to move in the second direction; and a movement device, moving the pressing device relative to the lower guide device.

Abstract: The disclosure provides a wire electric discharge machine which has a simple configuration and can make a wire electrode fed to a machining position rotate around an axis. The wire electric discharge machine for machining a workpiece includes an upper wire guide and a lower wire guide, which stretch a wire electrode therebetween, and a rotator. A position of the rotator is changed, whereby the wire electrode is rotated around an axis.

Abstract: The wire electric discharge machining device includes a wire bobbin configured to wind and hold a wire electrode, a wire delivery roller configured to draw the wire electrode from the wire bobbin and deliver the wire electrode continuously toward a work-piece, a brake motor configured to apply a load to the wire bobbin in a direction against the drawing of the wire electrode, rotation speed detector configured to detect a rotation speed of the wire bobbin, an emptiness determination device configured to determine that the wire bobbin reaches an empty state based on a rapid change in the rotation speed of the wire bobbin detected by the rotation speed detector, and a drive control part configured to stop the drive of the wire delivery roller when the emptiness determination device determines that the wire bobbin reaches the empty state.

Abstract: The disclosure provides a wire electric discharge machine which has a simple configuration and can make a wire electrode fed to a machining position rotate around an axis. The wire electric discharge machine for machining a workpiece includes an upper wire guide and a lower wire guide, which stretch a wire electrode therebetween, and a rotator. A position of the rotator is changed, whereby the wire electrode is rotated around an axis.

Abstract: An information processing apparatus includes an interface switching circuit including a first hardware interface to which a first device part is coupled; and a first processor including a second hardware interface, wherein the interface switching circuit is configured to block, when hot-removal of the first device part is detected, a signal path between the first hardware interface and the second hardware interface, and cancel, when diagnosis for a second device part newly hot-inserted in the first hardware interface is completed, the blocking of the signal path in response to a result of the diagnosis, and the first processor is configured to detect presence of the second device part from that the first processor transits from a non-responsive state to a responsible state, and execute an initialization process for the second device part.

Abstract: An information processing apparatus includes an interface switching circuit including a first hardware interface to which a first device part is coupled; and a first processor including a second hardware interface, wherein the interface switching circuit is configured to block, when hot-removal of the first device part is detected, a signal path between the first hardware interface and the second hardware interface, and cancel, when diagnosis for a second device part newly hot-inserted in the first hardware interface is completed, the blocking of the signal path in response to a result of the diagnosis, and the first processor is configured to detect presence of the second device part from that the first processor transits from a non-responsive state to a responsible state, and execute an initialization process for the second device part.

Abstract: The wire electric discharge machining device includes a wire bobbin configured to wind and hold a wire electrode, a wire delivery means configured to draw the wire electrode from the wire bobbin and deliver the wire electrode continuously toward a work-piece, a load applying means configured to apply a load to the wire bobbin in a direction against the drawing of the wire electrode, rotation speed detection means configured to detect a rotation speed of the wire bobbin, an emptiness determination means configured to determine that the wire bobbin reaches an empty state based on a rapid change in the rotation speed of the wire bobbin detected by the rotation speed detection means, and a drive control part configured to stop the drive of the wire delivery means when the emptiness determination means determines that the wire bobbin reaches the empty state.

Abstract: A control device 8 controls a tension device 10 to apply a tension to a wire electrode WE such that a set tension value is as small as possible within a range of 80 g or less during a particular anneal period when a particular anneal current is supplied from a current supply device 5.

Abstract: A wire electric discharge machining apparatus is provided to equip with an automatic wire threader more reliably threading a wire electrode through an start hole. The wire electric discharge machining apparatus includes an automatic wire threader including: a feed roller disposed higher than the start hole and feeding a wire electrode toward the start hole; and a vertical drive device disposed between the feed roller and the start hole, and supplying compressed air in the upward and downward directions to vertically move the wire electrode slightly. The vertical drive device includes wire guides having guide holes through which the wire electrode is passed. The wire guides are constructed so that upward movement by the compressed air is possible.

Abstract: A control device 8 controls a tension device 10 to apply a tension to a wire electrode WE such that a set tension value is as small as possible within a range of 80g or less during a particular anneal period when a particular anneal current is supplied from a current supply device 5.

Abstract: A wire electric discharge machining apparatus is provided to equip with an automatic wire threader more reliably threading a wire electrode through an start hole. The wire electric discharge machining apparatus includes an automatic wire threader including: a feed roller disposed higher than the start hole and feeding a wire electrode toward the start hole; and a vertical drive device disposed between the feed roller and the start hole, and supplying compressed air in the upward and downward directions to vertically move the wire electrode slightly. The vertical drive device includes wire guides having guide holes through which the wire electrode is passed. The wire guides are constructed so that upward movement by the compressed air is possible.

Abstract: A circuit device has a first output buffer including a first adjustment circuit for adjusting a level of the first output signal, a first input buffer connected to the first output buffer, an adjustment controller for outputting a test signal to the first output buffer, outputting a control signal to the first adjustment circuit so that the level of the first output signal is adjusted on the basis of the control signal, monitoring an output of the first input buffer, and adjusting the control signal on the basis of the monitoring the output of the first input buffer, a second output buffer connected to the adjustment controller and operable to assume either an active or a non-active state, for outputting a second output signal when controlled to assume an active state, including a second adjustment circuit, and a second input buffer.

Abstract: A circuit system has a first and a second circuit sub-system, and a bidirectional bus, the first circuit sub-system having a first control circuit that receives a control signal for controlling the direction of the bidirectional bus, and controls the first sub-system to be either of a transmitting or a receiving state based on a state of the control signal, a first sending unit that receives the control signal, and outputs as a first control signal, and a second sending unit that receives the control signal, and outputs as a second control signal, the second circuit sub-system having a first receiving unit that receives the first control signal, a second receiving unit that receives the second control signal, and a second control circuit that controls the second sub-system to assume either the transmitting or the receiving state on the basis of the first and the second control signal.

Abstract: A circuit device has a first output buffer including a first adjustment circuit for adjusting a level of the first output signal, a first input buffer connected to the first output buffer, an adjustment controller for outputting a test signal to the first output buffer, outputting a control signal to the first adjustment circuit so that the level of the first output signal is adjusted on the basis of the control signal, monitoring an output of the first input buffer, and adjusting the control signal on the basis of the monitoring the output of the first input buffer, a second output buffer connected to the adjustment controller and operable to assume either an active or a non-active state, for outputting a second output signal when controlled to assume an active state, including a second adjustment circuit, and a second input buffer.

Abstract: A circuit system has a first and a second circuit sub-system, and a bidirectional bus, the first circuit sub-system having a first control circuit that receives a control signal for controlling the direction of the bidirectional bus, and controls the first sub-system to be either of a transmitting or a receiving state based on a state of the control signal, a first sending unit that receives the control signal, and outputs as a first control signal, and a second sending unit that receives the control signal, and outputs as a second control signal, the second circuit sub-system having a first receiving unit that receives the first control signal, a second receiving unit that receives the second control signal, and a second control circuit that controls the second sub-system to assume either the transmitting or the receiving state on the basis of the first and the second control signal.

Abstract: A gas sensor includes a gas detection chamber into which a detection gas is introduced, a detecting element and a compensating element each disposed in the gas detection chamber, a detection device which detects the concentration of a detection target gas contained in the detection gas, in accordance with a difference in electrical resistance values between the detecting element and the compensating element, and a dehumidifying element which is provided in the gas detection chamber, and reversibly absorbs water contained in the detection gas and drains off the water absorbed in the dehumidifying element.

Abstract: The gas detecting system of the present invention is equipped with a catalytic combustion type gas sensor 1a and a semiconductor type gas sensor 1b, in a gas detecting system 1 having an operating sate in which generation of electricity is performed, and an idling state, at the time of the operating state, detection of the detection target gas is performed by the catalytic combustion type gas sensor 1a, whereas at the time of the idling state, detection of the detection target gas is performed by the semiconductor type gas sensor 1b.