Abstract: A piezoelectric drive device includes two vibrators having vibrating portions with piezoelectric elements and transmitting portions placed in the vibrating portions and transmitting drive forces to a driven member (e.g. a slider), and a fixing portion having through holes (first through hole, second through hole) into which pins or screws are inserted. The two vibrators are placed adjoiningly along a drive direction of the slider, and the fixing portion is placed between the two vibrators and fixing the two vibrators.

Abstract: A rotary-to-linear motion converter includes: a drive portion including a vibrating portion vibrating by a piezoelectric body and a convex portion coupled to the vibrating portion; a housing; a rotating member including a first screw portion and a driven surface that contacts the convex portion and that receives driving force of the drive portion, the rotating member pivoting around an axial center relative to the housing; a linearly moving member including a second screw portion threadably engaging with the first screw portion; and a restricting portion that is disposed at the housing and that restricts rotation of the linearly moving member.

Abstract: An electronic apparatus includes an electronic component including a laminated body in which an intermediate layer is disposed between first and second substrates, the laminated body including a first side surface, a second side surface connected to one side of the first side surface, and a third side surface connected to the other side of the first side surface, a first terminal disposed on the first side surface of the first substrate, a second terminal disposed on the first side surface of the second substrate, and a recessed section that is positioned between the first and second terminals and that is recessed from the first side surface, a wiring substrate disposed to face the first side surface and a thermosetting adhesive that is located between the wiring substrate and the electronic component and that mechanically and electrically connects the wiring substrate and the electronic component to each other.

Abstract: In a sensor used in an energy harvesting system, electric power generated by a solar cell module is more efficiently utilized. In a sensor (100), a resistor (3) is connected in parallel with one of a first solar cell module (1a) and a second solar cell module (1b) that have mutually different current-voltage characteristics in the same illuminance environment and in series with the other one of the first solar cell module (1a) and the second solar cell module (1b). A first voltmeter (4a) measures a voltage (V1) across the first solar cell module (1a), and a second voltmeter (4b) measures a voltage (V2) across the second solar cell module (1b). A load (6) is fed with the electric power generated by the first solar cell module (1a) and the second solar cell module (1b).

Abstract: The horizontal articulated robot includes a platform, a first arm which is coupled to the platform, which moves along a first linear-motion axis with respect to the platform, and which rotates around a first rotational axis parallel to the first linear-motion axis, a second arm which is coupled to the first arm, which moves along a second linear-motion axis different in direction from the first linear-motion axis with respect to the first arm, and which rotates around a second rotational axis parallel to the first rotational axis, a third arm which is coupled to the second arm, and which rotates around a third rotational axis perpendicular to the first linear-motion axis, and a fourth arm which is coupled to the third arm, and which rotates around a fourth rotational axis perpendicular to the third rotational axis.

Abstract: A vibrator includes a vibrating part including a pair of vibrating plates and a piezoelectric material provided between the pair of vibrating plates, a supporting part including a pair of supporting plates and an interplate portion provided between the pair of supporting plates, and a wire provided in the vibrating part and the supporting part, wherein the wire is exposed from the supporting part.

Abstract: A control method for a robot system includes setting a robot arm in a first attitude, performing work in a first region of an object while moving a tool relative to the object by a moving stage with the first attitude maintained, setting the robot arm in a second attitude, imaging the object using a camera and correcting a position of the tool by driving of the moving stage based on an imaging result with the second attitude maintained, and performing the work in a second region of the object while moving the tool relative to the object by the moving stage with the second attitude maintained.

Abstract: A control method for a robot system including a moving stage, a tool attached to the moving stage, and a robot arm holding one of the moving stage and an object and performing predetermined work on the object using the tool, includes performing the work while moving the tool relative to the object by the moving stage with the robot arm stopped, wherein a portion having a larger curvature has a smaller range of the work than a portion having a smaller curvature of the object.

Abstract: A piezoelectric motor includes a piezoelectric actuator, a holding member that holds the piezoelectric actuator, a housing in which the piezoelectric actuator and the holding member are placed, a first positioning pin that positions the holding member and the housing, and a first fixing part that fixes the first positioning pin. In the piezoelectric motor, the first positioning pin is fixed to one of the holding member and the housing, and a first hole portion in which the first positioning pin is placed is provided in the other of the holding member and the housing. The first fixing part fixes relative positions of the first hole portion and the first positioning pin.

Abstract: A piezoelectric driving device includes a piezoelectric vibrating body and a driving circuit. The piezoelectric vibrating body includes a contact which extends in a first direction and comes into contact with a driven member, a first piezoelectric element which generates bending vibration in a direction intersecting with the first direction in accordance with a first driving voltage, and a second piezoelectric element which generates longitudinal vibration in the first direction in accordance with a second driving voltage. The piezoelectric vibrating body is configured such that a resonance frequency of the longitudinal vibration is higher than a resonance frequency of the bending vibration. The driving circuit sets a driving frequency of each of the first driving voltage and the second driving voltage to be equal to or higher than the resonance frequency of the longitudinal vibration.

Abstract: A piezoelectric drive device includes two vibrators having vibrating portions with piezoelectric elements and transmitting portions placed in the vibrating portions and transmitting drive forces to a driven member (e.g. a slider), and a fixing portion having through holes (first through hole, second through hole)into which pins or screws are inserted. The two vibrators are placed adjoiningly along a drive direction of the slider, and the fixing portion is placed between the two vibrators and fixing the two vibrators.

Abstract: A piezoelectric motor includes a driven body configured to rotate around a rotation axis, a first piezoelectric vibrator configured to transmit a driving force to the driven body, a moving mechanism configured to move the first piezoelectric vibrator in directions approaching and separating from the rotation axis, and a second piezoelectric vibrator configured to transmit a driving force to the moving mechanism. The moving mechanism includes a screw shaft disposed along the directions and configured to rotate around an axis with the driving force of the second piezoelectric vibrator and a holding section configured to screw with the screw shaft and hold the first piezoelectric vibrator.

Abstract: A robot arm includes a distal end unit having a gripping part and a first supporting part that supports the gripping part, a first drive unit that, with an axis along a direction in which the gripping part and the first supporting part are arranged as a first axis, pivots the gripping part about a first pivot axis along the first axis relative to the first supporting part, a second supporting part that supports the first supporting part, and a second drive unit that, with an axis orthogonal to the first axis as a second axis, pivots the distal end unit about a second pivot axis along the second axis relative to the second supporting part, wherein the first drive unit includes a piezoelectric motor, and the second pivot axis crosses the distal end unit.

Abstract: A piezoelectric drive device includes a rotor having a driven part and rotating around a rotation axis, a vibrating unit having a piezoelectric element and applying a drive force for rotating the rotor to the driven part by displacement of the piezoelectric element, and a bearing supporting the rotor. The driven part has a first portion, a second portion, and a third portion sequentially connected, the first portion has a predetermined region along an axial direction of the rotation axis and coupled to an inner ring of the bearing within the predetermined region, the second portion overlaps with the bearing in a plan view from the axial direction, and the third portion has a contact surface in contact with the vibrating unit at an inner side of both ends of the predetermined region in a plan view from a direction perpendicular to the axial direction.

Abstract: A piezoelectric drive device includes a rotor which has an output section for outputting a rotational force and a transmission section disposed on an outer periphery of the output section, and rotates around a rotational axis, and a vibrating part which has a piezoelectric element, and rotates the rotor due to a deformation of the piezoelectric element. The transmission section has a first portion and a second portion different from each other in position in a radial direction from the output section toward the transmission section, the first portion is coupled to the output section, the second portion is higher in Young's modulus than the first portion, the second portion is higher in mass per unit volume than the first portion, and the vibrating part makes contact with the transmission section at a position overlapping the second portion in a plan view from an axial direction of the rotational axis.

Abstract: A piezoelectric driving device includes a first substrate having cleavability, and a piezoelectric element placed above the first substrate, wherein a cleavage direction of the first substrate and a direction in which a shear force is applied do not coincide in a plan view of the first substrate. Further, an angle formed by the cleavage direction of the first substrate and the direction in which the shear force is applied is equal to or larger than 20° in the plan view of the first substrate. Furthermore, the first substrate contains silicon single crystal.

Abstract: The horizontal articulated robot includes a platform, a first arm which is coupled to the platform, which moves along a first linear-motion axis with respect to the platform, and which rotates around a first rotational axis parallel to the first linear-motion axis, a second arm which is coupled to the first arm, which moves along a second linear-motion axis different in direction from the first linear-motion axis with respect to the first arm, and which rotates around a second rotational axis parallel to the first rotational axis, a third arm which is coupled to the second arm, and which rotates around a third rotational axis perpendicular to the first linear-motion axis, and a fourth arm which is coupled to the third arm, and which rotates around a fourth rotational axis perpendicular to the third rotational axis.

Abstract: An adjusting mechanism includes a movable plate having a substantially rectangular shape and including a long side and a short side, a position adjusting actuator configured to come into contact with and press the movable plate, a reference plate on which the movable plate is placed, and an elastic member coupling the movable plate and the reference plate, the elastic member being elastically deformable in a direction along an X axis. The position adjusting actuator adjusts a position of the movable plate with respect to the reference plate when the position adjusting actuator presses the movable plate in the direction along the X axis and moves the movable plate in the direction along the X axis and a ?z direction.

Abstract: A piezoelectric drive device includes: a vibrating body having a first surface and a second surface provided with a recessed portion; and a piezoelectric element provided on the first surface. The recessed portion and the piezoelectric element have an overlap region when viewed in a normal direction of the second surface.

Abstract: A piezoelectric motor includes a piezoelectric actuator, a holding member that holds the piezoelectric actuator, a housing in which the piezoelectric actuator and the holding member are placed, a first positioning pin that positions the holding member and the housing, and a first fixing part that fixes the first positioning pin. In the piezoelectric motor, the first positioning pin is fixed to one of the holding member and the housing, and a first hole portion in which the first positioning pin is placed is provided in the other of the holding member and the housing. The first fixing part fixes relative positions of the first hole portion and the first positioning pin.