Abstract: A laser processing device having a function for reducing intensity of a reflected laser beam, without stopping laser oscillation, in order to avoid a malfunction due to the reflected beam. A controller for controlling a laser oscillator has: a laser processing commanding part configured to output a laser processing command; a memory configured to store monitored intensity of the reflected beam and a laser output condition; a pre-processing commanding part configured to command a pre-processing prior to the laser processing command; a comparing part configured to compare the stored intensity of the reflected beam to a first judgment value and/or a second judgment value lower than the first judgment value; an output condition changing part configured to set or change the laser output command of the pre-processing command based on a comparison result; and a pre-processing terminating part configured to terminate the pre-processing based on a predetermined condition.

Abstract: Disclosed is an assessment method for making an assessment of laser welding between first and second cylindrical metal members, wherein the first and second cylindrical metal members are arranged coaxially to define an overlap range where the first and second cylindrical metal members overlap each other; and wherein the laser welding is performed on the overlap range along a circumferential direction of the overlap range. The assessment method includes: during the laser welding, carrying out a measurement of a position of a contour of at least one of the first and second cylindrical metal members; and judging the occurrence or non-occurrence of a position deviation of the at least one of the first and second cylindrical metal members based on a result of the measurement.

Abstract: A ring gear that, together with a sun gear and a pinion gear that is disposed radially outward of the sun gear and meshes with the sun gear, forms a planetary gear unit, the ring gear includes: a body, internal teeth that are configured to mesh with the pinion gear and that are formed in at least a part of an inner peripheral surface of the body, and external teeth that have a lower hardness than the internal teeth and that are formed in at least a part of an outer peripheral surface of the body, wherein a surface nitrogen concentration in the internal teeth is higher than that in at least tooth surfaces of the external teeth.

Abstract: An absorptivity of a work is adjusted easily before laser machining is performed. A combined machining method performed by an apparatus including laser machining means and mechanical machining means includes a first step of performing mechanical machining with respect to a laser machining target region which is a target of laser machining on a machining target so that the laser machining target region has a surface shape having a predetermined absorptivity of a laser beam; and a second step of radiating a laser beam to the laser machining target region to heat the machining target after the first step ends.

Abstract: A liquid circulation device includes a circulation path, a liquid feeding device, and circuitry. The circulation path is configured to circulate a liquid to be supplied to a liquid discharge head of a circulatory type and collected from the liquid discharge head. The liquid feeding device is configured to feed the liquid to circulate the liquid in the circulation path. The circuitry is configured to control an amount of the liquid to be fed by the liquid feeding device, on a basis of discharge information about the liquid to be discharged from the liquid discharge head.

Abstract: A liquid discharge device includes a storage tank, a discharge head, a liquid feeder, a supply tank, a liquid path, a branch path, and a flow regulator. The liquid feeder is configured to feed liquid from the storage tank to the discharge head in a liquid feed direction. The supply tank is disposed upstream of the discharge head in the liquid feed direction, to store the liquid fed by the liquid feeder while being in a state open to atmosphere. The liquid path is configured to flow the liquid from the liquid feeder to the supply tank. The branch path is connected to the liquid path and configured to cause part of the liquid to branch from the liquid path. The flow regulator is disposed downstream of the discharge head in the liquid feed direction and configured to control a flow rate of the liquid flowing into the discharge head.

Abstract: A calibration method for a laser processing robot, including: fixing a jig that includes a target-site to a base of the laser processing robot; placing a laser processing tool at a position where a laser beam is scanned with respect to the target-site, the laser processing tool having a function for two-dimensionally scanning the laser beam and a function for receiving the laser beam reflected at an object and for measuring a distance to the object; measuring distances to respective portions of the target-site by scanning the laser beam; calculating a coordinate transformation function for converting a position and orientation of the target-site, which is obtained based on the measured distances to the respective portions of the target-site, into an actual position and orientation of the target-site; and correcting a tool-center-point of the laser processing tool by the coordinate transformation function.

Abstract: A turbocharger includes: a bearing portion which is provided in a turbine housing; a shaft rotatably inserted into a bearing hole of the bearing portion; an attaching member fixed to the shaft; and a valve coupled to the shaft via the attaching member and configured to open and close a flow path opened to an internal space along with rotation of the shaft. The attaching member includes: a base portion provided with an insertion hole of the shaft; and an extension portion integrally formed with the base portion and extending from the base portion in a radial direction of the shaft to thereby hold the valve. The base portion is provided at least at a part of a range of the shaft in a circumferential direction of the shaft, and protrudes more in the radial direction of the shaft than the bearing portion.

Abstract: A compound thin film is obtained with a high deposition rate and consistent film quality in reactive sputtering. A thin film is formed by performing voltage monitoring control and gas flow rate monitoring control. The voltage monitoring control is control in which a gas flow rate is adjusted such that the value of a target voltage is brought closer to the value of a desired voltage by monitoring the target voltage in a first cycle time. The gas flow rate monitoring control is control in which the desired voltage for the target voltage is changed such that the value of the gas flow rate is brought closer to the value of a desired gas flow rate by monitoring the gas flow rate in a second cycle time.

Abstract: It is desirable to provide a technology capable of improving reliability in light transmission and convenience at the time of connecting a transmission device to a cable with a simple circuit configuration. A transmitting device is provided which includes a connector receptacle unit connected to an optical-electrical composite cable, in which the connector receptacle unit includes a first electrode group, a second electrode group provided at a position rotated from the first electrode group by 180 degrees about a center of a main body of the connector receptacle unit as a reference, a first connection unit group for transmitting optical signals, and a second connection unit group for transmitting optical signals provided at a position rotated from the first connection unit group for transmitting optical signals by 180 degrees about the center of the main body of the connector receptacle unit as a reference.

Abstract: An image forming apparatus includes a latent image bearer, an electrostatic latent image forming device, a potential sensor, a toner image forming device, a toner adhesion amount detector, and circuitry. The circuitry controls the electrostatic latent image forming device to create an adjustment pattern on the latent image bearer when the image forming apparatus is not printing, controls the potential sensor to detect an electric potential of the adjustment pattern, controls the electrostatic latent image forming device and the toner image forming device to create a test toner image during a printing period, controls the toner adhesion amount detector to detect a toner adhesion amount of the test toner image, and adjusts at least one image forming condition of the electrostatic latent image forming device and the toner image forming device based on the electric potential of the adjustment pattern and the toner adhesion amount of the test toner image.

Abstract: It is desired that a technology is provided that can further suppress disturbance of a video displayed on a reception side even if a transmittance state of a lane in which a part or whole of a video signal is transmitted among the plurality of lanes is deteriorated. Provided is a transmission control apparatus including: a first transmittance frame generation unit that generates a first transmittance frame transmitted via a first lane on the basis of a first divided signal obtained through division of a video signal; an insertion unit that inserts restoration data based on at least a part of the first divided signal into a second divided signal obtained through division of the video signal; and a second transmittance frame generation unit that generates a second transmittance frame transmitted via a second lane that is different from the first lane on the basis of the second divided signal into which the restoration data has been inserted.

Abstract: It is desirable to provide a technology capable of supporting reverse connection in which the front and back of a connector are reversed while expansion of circuit scale is suppressed. A reception control device is provided including: a polarity detection unit that detects, as a polarity determination result signal, at least one of a polarity of a first reception signal received by a first reception unit or a polarity of a polarity inversion result of a second reception signal received by a second reception unit; and a reception control unit that controls output destinations of a third reception signal received after the first reception signal by the first reception unit and a fourth reception signal received after the second reception signal by the second reception unit, on the basis of the polarity determination result signal.

Abstract: A turbocharger includes a bearing portion having an end as an inner end surface located within a turbine housing in a penetrating direction of a bearing hole; a shaft rotatably supported in the bearing hole, one end thereof located within the turbine housing and the other end thereof located outside the turbine housing; an attaching plate fixed to the shaft, including an inner facing surface facing the inner end surface in an axial direction of the shaft; and a valve coupled to the shaft via the attaching plate to open and close a flow path opened to an internal space of the turbine housing. An inner radial groove is formed in at least one of the inner end surface and the inner facing surface. The inner radial groove extends in the radial direction of the shaft to allow a part of an exhaust gas flowing within the turbine housing to flow therethrough.

Abstract: A ring gear that, together with a sun gear and a pinion gear that is disposed radially outward of the sun gear and meshes with the sun gear, forms a planetary gear unit, the ring gear includes: a body, internal teeth that are configured to mesh with the pinion gear and that are formed in at least a part of an inner peripheral surface of the body, and external teeth that have a lower hardness than the internal teeth and that are formed in at least a part of an outer peripheral surface of the body, wherein a surface nitrogen concentration in the internal teeth is higher than that in at least tooth surfaces of the external teeth.

Abstract: A laser processing device has a preprocessing controller which issues a command to perform preprocessing of a workpiece under high output conditions, which are previously found by an experiment or calculation in accordance with at least some of processing conditions and which include the irradiation intensity and irradiation time, at which a workpiece is melted, changed in shape, or denatured; a command to irradiate the workpiece with a laser beam under low output conditions, which are previously found by an experiment or calculation in accordance with at least some of the processing conditions and which include the irradiation intensity and irradiation time, at which a workpiece is not melted, changed in shape, or denatured; and a command of whether to start the laser processing, based on a first light quantity of light reflected or emitted from a processing point irradiated with a laser beam under the low output conditions.

Abstract: A turbocharger includes: a turbine housing including an internal space formed therein; a bearing portion provided in the turbine housing; a shaft rotatably inserted into a bearing hole in a state where at least one end protrudes more to an inside of the turbine housing than the bearing portion; and a valve fixed to the shaft and configured to open and close a flow path opened to the internal space. The bearing portion includes a protrusion portion which protrudes from an inner wall of the turbine housing. The radial hole of the protrusion portion penetrates the bearing portion in a radial direction of the shaft, from the outer circumferential surface of the bearing portion to the bearing hole.

Abstract: A laser machine comprises: a head including optical parts allowing reflection of a laser beam or allowing the laser beam to pass through, while being rotatable about rotary axes, and a focusing optical system that focuses the laser beam; a moving mechanism that allows the head and a target to move relative to each other; and a control unit that controls rotations of the optical parts in such a manner that an irradiation intended position to be reached by an emission optical axis when the laser beam is emitted to the target moves in a curvilinear pattern or a linear pattern, controls movement by the moving mechanism so as to move the head and the target relative to each other, and controls emission output from the laser source so as to change a condition for emitting the laser beam based on the rotation angles of the optical parts.

Abstract: A laser apparatus includes: a cooling capacity control means which controls the cooling capacity of a heat receiving/cooling unit; a surrounding member which surrounds a dew condensation prevention target unit including a heat generating unit and which reaches a surrounding member equilibrium temperature higher than the maximum dew point temperature within a housing as the temperature of the heat generating unit is increased; and a temperature detection means which detects the temperature of the surrounding member, a control unit compares, while a current output command is being output to a laser power supply unit, a surrounding member temperature with a switching temperature previously set lower than the surrounding member equilibrium temperature and when the surrounding member temperature is lower than the switching temperature, the control unit controls the cooling capacity control means such that the cooling capacity of the heat receiving/cooling unit is a low level whereas when the surrounding member tem

Abstract: A laser processing system including a laser processing unit, a controller controlling the processing unit according to a laser processing program, and a restart preparation apparatus performing a preparation process of the controller to resume the program execution after being suspended. The restart preparation apparatus includes an operating state judging section judging whether an operating state of the processing unit when suspending the program execution is in course of laser processing, and a restart condition specifying section specifying a restart condition of the processing unit when resuming the program execution, from among predetermined conditions, based on a judgment result.