Abstract: A chuck table used while grinding a flat plate-shaped workpiece having four or more corners in plan view, the chuck table including a holding surface partitioned into a circular first region surrounded by a polygonal second region that has an outer periphery having four or more corners, in plan view, in which the holding surface is shaped such that the center of the first region is the lowest point and the height increases as the distance from the center increases, and the angle formed between the reference tangent plane of the holding surface at the center of the first region and the first tangent plane of the holding surface at points other than the center that are included in the first region is smaller than the angle formed between the reference tangent plane and a second tangent plane of the holding surface at points included in the second region.

Abstract: A nitride semiconductor light emitting element includes: a first n-type semiconductor layer, a first p-type semiconductor layer disposed above and in contact with the first n-type semiconductor layer; a first superlattice layer disposed above the first p-type semiconductor layer and containing a p-type impurity; an active layer disposed above the first superlattice layer, a second n-type semiconductor layer disposed above the active layer; a first electrode electrically connected to the first n-type semiconductor layer; and a second electrode electrically connected to the second n-type semiconductor layer.

Abstract: A nitride semiconductor light emitting element includes: n-side and p-side nitride semiconductor layers; and an active layer. The active layer includes a plurality of well layers and a plurality of barrier layers. The plurality of well layers include first well layers, and second well layers positioned closer to the p-side nitride semiconductor layer than the first well layers. At least one of the plurality of barrier layers positioned between the first well layers and at least one of the plurality of barrier layers positioned between the second well layers respectively include a first barrier layer containing an n-type impurity, and a second barrier layer, wherein a concentration of the n-type impurity in the second barrier layer is lower than a concentration of the n-type impurity in the first barrier layer, and wherein the second barrier layer is positioned closer to the p-side nitride semiconductor layer than the first barrier layer.

Abstract: A mobile terminal communication system for a vehicle that enables pairing between a mobile terminal and a seat while inhibiting an increase in equipment installed in the seat is provided. In one aspect of the disclosure, the system includes seats that each configured to output first information in relation to a motion of an occupant; and a processor that communicates with the seats and a mobile terminal possessed by a person in the vehicle. The processor includes a comparison processing device that estimates a control-target seat, on which the person is seated, among the seats by comparing the first information outputted by each seat with second information in relation to the motion of the person outputted by the mobile terminal; and a pairing processing device that pairs the estimated control-target seat with the mobile terminal and to transmit an output of the paired mobile terminal to the control-target seat.

Abstract: The control device includes: a detection unit that detects a predetermined speech/motion of a user who is present in an output destination space of a directional speaker; an identification unit that identifies, in accordance with the predetermined speech/motion, an audio source of interest among audio sources and a directional speaker as an object to be controlled; and an output control unit that causes the identified directional speakers to output audio supplied from the identified audio source.

Abstract: An information processing device and an information processing method that prevent unnecessary warning are provided. An information processing device includes a host vehicle information acquisition part configured to acquire host vehicle information on a host vehicle, a setting part configured to set an allowable range for a driver's sight of the host vehicle based on the host vehicle information, a driver information acquisition part configured to acquire driver information on the driver, a determination part (inattentive driving determination part) configured to determine whether or not the driver is looking at the allowable range based on the allowable range and the driver information, and an output part (sound output part, vibration part, display part) configured to output a predetermined notification based on the determination of the determination part (inattentive driving determination part).

Abstract: Provided are a friction stir welding apparatus and a friction stir welding method that achieve highly accurate and highly reliable joining while minimizing an effect of bending of a pressing force receiving portion (carrying table) as a result of a press by a joining tool unit. The friction stir welding apparatus joins joining target members by friction stir welding. The friction stir welding apparatus is characterized by including: an apparatus main body; a control device that controls an operation of the friction stir welding apparatus; a C-shaped frame connected to the apparatus main body via a first vertical movement drive mechanism unit; a holder unit connected to one end of the C-shaped frame via a second vertical movement drive mechanism unit; and a joining tool held by the holder unit.

Abstract: The present disclosure accurately identifies a posture of a user whose body is supported by a supporting apparatus. A posture identifying device includes: a model preparing section configured to prepare a three-dimensional model from body data; a body part position information obtaining section configured to obtain body part position information from a camera; a shape information obtaining section configured to obtain shape information from a shape sensor; a model correcting section configured to correct a posture in the three-dimensional model according to (i) a position of a specific part indicated by the body part position information and (ii) a shape of a seat indicated by the shape information; and a posture identifying section configured to identify a posture of a user from the posture in the three-dimensional model thus corrected.

Abstract: A light-emitting element includes: a first light-emitting portion includes, in order upward from a lower side, a first n-side layer, a first active layer, and a first p-side layer disposed, each made of a nitride semiconductor; an intermediate layer disposed over the first light-emitting portion and made of a nitride semiconductor including an n-type impurity; and a second light-emitting portion disposed over the intermediate layer and comprising, in order upward from a lower side, a second n-side layer, a second active layer, and a second p-side layer, each made of a nitride semiconductor. An n-type impurity concentration in the intermediate layer is greater than an n-type impurity concentration in the first n-side layer. The first p-side layer includes: a first layer including aluminum and gallium, and a second layer disposed above the first layer, including aluminum and gallium.

Abstract: A printing device has a print unit for printing on roll paper; a wireless communication unit for communicating wirelessly with a paired control device; and a controller for receiving print data by wireless communication from the control device, and controlling the print unit based on the received print data. When changing from a pairing-disabled mode to a pairing-enabled mode, the controller controls the print unit to print pairing-related information on roll paper, does not process pairing in the pairing-disabled mode, and processes pairing when a pairing request is received in the pairing-enabled mode.

Abstract: A method for manufacturing a light-emitting element includes: forming a first light-emitting part comprising a first n-type semiconductor layer, a first active layer on the first n-type semiconductor layer, and a first p-type semiconductor layer on the first active layer; forming an intermediate layer on the first light-emitting part; and forming a second light-emitting part on the intermediate layer, the second light-emitting part comprising a second n-type semiconductor layer, a second active layer on the second n-type semiconductor layer, and a second p-type semiconductor layer on the second active layer.

Abstract: The control device includes: a detection unit that detects a predetermined speech/motion of a user who is present in an output destination space of a directional speaker; an identification unit that identifies, in accordance with the predetermined speech/motion, an audio source of interest among audio sources and a directional speaker as an object to be controlled; and an output control unit that causes the identified directional speakers to output audio supplied from the identified audio source.

Abstract: A mobile terminal communication system for a vehicle that enables pairing between a mobile terminal and a seat while inhibiting an increase in equipment installed in the seat is provided. In one aspect of the disclosure, the system includes seats that each configured to output first information in relation to a motion of an occupant; and a processor that communicates with the seats and a mobile terminal possessed by a person in the vehicle. The processor includes a comparison processing device that estimates a control-target seat, on which the person is seated, among the seats by comparing the first information outputted by each seat with second information in relation to the motion of the person outputted by the mobile terminal; and a pairing processing device that pairs the estimated control-target seat with the mobile terminal and to transmit an output of the paired mobile terminal to the control-target seat.

Abstract: A nitride semiconductor light emitting element includes: n-side and p-side nitride semiconductor layers; and an active layer. The active layer includes a plurality of well layers and a plurality of barrier layers. The plurality of well layers include first well layers, and second well layers positioned closer to the p-side nitride semiconductor layer than the first well layers. At least one of the plurality of barrier layers positioned between the first well layers and at least one of the plurality of barrier layers positioned between the second well layers respectively include a first barrier layer containing an n-type impurity, and a second barrier layer, wherein a concentration of the n-type impurity in the second barrier layer is lower than a concentration of the n-type impurity in the first barrier layer, and wherein the second barrier layer is positioned closer to the p-side nitride semiconductor layer than the first barrier layer.

Abstract: A nitride semiconductor light emitting element includes: an n-side nitride semiconductor layer; a p-side nitride semiconductor layer; and an active layer disposed between the n-side nitride semiconductor layer and the p-side nitride semiconductor layer and comprising a plurality of stacks, each comprising a well layer and a barrier layer. The well layers include, successively from the n-side nitride semiconductor layer side, a first well layer, a second well layer, and a third well layer that is positioned closest to the p-side nitride semiconductor layer among the well layers. A thickness of the second well layer is greater than a thickness of the first well layer. A thickness of the third well layer is greater than the thickness of the second well layer. Among the barrier layers, the first barrier layer, which is positioned between the third well layer and the p-side nitride semiconductor layer, is doped with a p-type impurity.

Abstract: A friction stir welding apparatus and method maintains a depth of a welded part constant without varying a depth-direction position of a welding tool leading end part relative to welded members. A control device controls an operation of the friction stir welding apparatus, and a holder unit is connected to a swing mechanism unit via a revolving mechanism section, and a welding tool is held to the holder unit. The control device has a first welding mode in which friction stir welding is performed on the basis of a welding condition signal for deciding a welding condition of the welding tool, a swing control signal for controlling the swing mechanism unit, a first hold position decision signal, and a second welding mode in which friction stir welding is performed on the basis of the welding condition signal, the swing control signal, and a second hold position decision signal.

Abstract: A printing device has a print unit for printing on roll paper; a wireless communication unit for communicating wirelessly with a paired control device; and a controller for receiving print data by wireless communication from the control device, and controlling the print unit based on the received print data. When changing from a pairing-disabled mode to a pairing-enabled mode, the controller controls the print unit to print pairing-related information on roll paper, does not process pairing in the pairing-disabled mode, and processes pairing when a pairing request is received in the pairing-enabled mode.

Abstract: An object is to provide a warning output device, a warning output method, and a warning output system that make it possible to appropriately output warning. A warning output device includes: a driver's state acquisition unit configured to acquire inattentive driving information indicating that a driver performs inattentive driving; a vehicle state acquisition unit configured to acquire a vehicle state; a vehicle warning reception unit configured to receive vehicle warning, which is warning corresponding to the vehicle state; an adaptive rule acquisition unit configured to acquire adaptive rule information generated when the driver performs inattentive driving and the warning is received; and an output unit configured to output inattentive driving warning, which is warning related to inattentive driving when the driver's state acquisition unit acquires the inattentive driving information and the vehicle state satisfies a predetermined condition specified in the adaptive rule information.

Abstract: A printing device has a print unit for printing on roll paper; a wireless communication unit for communicating wirelessly with a paired control device; and a controller for receiving print data by wireless communication from the control device, and controlling the print unit based on the received print data. When changing from a pairing-disabled mode to a pairing-enabled mode, the controller controls the print unit to print pairing-related information on roll paper, does not process pairing in the pairing-disabled mode, and processes pairing when a pairing request is received in the pairing-enabled mode.

Abstract: An information processing device and an information processing method that prevent unnecessary warning are provided. An information processing device includes a host vehicle information acquisition part configured to acquire host vehicle information on a host vehicle, a setting part configured to set an allowable range for a driver's sight of the host vehicle based on the host vehicle information, a driver information acquisition part configured to acquire driver information on the driver, a determination part (inattentive driving determination part) configured to determine whether or not the driver is looking at the allowable range based on the allowable range and the driver information, and an output part (sound output part, vibration part, display part) configured to output a predetermined notification based on the determination of the determination part (inattentive driving determination part).