Abstract: A magnetic disk device includes a plurality of disk-shaped magnetic disks 30, spacers 80, a hub 90, a clamp 70, and a fastening member 72. Each of the magnetic disks 30 includes a through-hole in a center section thereof. Each of the spacers 80 includes a through-hole in a center section thereof, and is disposed among the magnetic disks 30. The hub 90 is inserted into the through-holes of the magnetic disks 30 and the spacers 80. The clamp 70 presses and holds the magnetic disks 30 and the spacers 80. The fastening member 72 fastens the clamp 70 to the hub 90. The clamp 70 is fastened to the hub by the fastening member 72 with a torque of from 5 cN·m to 45 cN·m.

Abstract: An electronic component includes a ceramic body, and an external electrode on the ceramic body, the external electrode includes a base layer continuously covering an end surface of the ceramic body and a portion of a side surface bordering the end surface, and a plating layer covering the base layer, the ceramic body includes a recess open on the side surface, an opening of the recess includes a pair of edges, one edge of the opening is located within a covered region on the side surface covered with the base layer, and the other edge of the opening is spaced away from the covered region.

Abstract: A server acquires, in a first predetermined period, first data in which excretion related data of a user, acquired by an excretion sensor installed in a toilet, and a user ID for identifying the user are associated with each other, generates a reference database indicating an excretion tendency of the user on the basis of the acquired first data, acquires, in a second predetermined period, second data in which excretion related data of the user, acquired by the excretion sensor installed in the toilet, and the user ID are associated with each other, generates alert information for the user on the basis of the reference database and the second data, and outputs the generated alert information.

Abstract: This magnetic disk device is a 3.5-inch magnetic disk device equipped with magnetic disks formed from an aluminum alloy substrate. The magnetic disks arranged in a stacked manner have a thickness Td of 0.3 mm to 0.6 mm, the number N of magnetic disks involved is 10 to 16, and spacers disposed between the magnetic disks have an outside diameter 2 Rso of 35 mm to 65 mm. The outside diameter 2 Rso (mm) of the spacers satisfies 2 Rso??60 Td+70 and 2 Rso??0.5 N2?+16.5 N?73.

Abstract: An ultrasonic inspection device is used for inspecting a packaging container having a joined portion including overlapping and joined edges of the packaging container. The ultrasonic inspection device includes a transmitter configured to irradiate ultrasonic waves toward at least a base end portion of the joined portion in a state in which the joined portion protrudes from a surface of an object in a direction orthogonal to the surface, the base end portion being positioned on a side of the object. The ultrasonic inspection device further includes a plurality of receivers configured to receive the ultrasonic waves transmitted through the joined portion.

Abstract: Provided is an information processing apparatus that is to be connected to a controller apparatus including a push-button, a force sense presentation section, and the push-button. The push-button moves between a first position and a second position when depressed by a finger of a user. The force sense presentation section presents a force sense to the push-button. The information processing apparatus determines, according to a prescribed force sense setting, the aspect of a force sense to be imparted to the push-button, and controls the force sense presentation section of the controller apparatus, according to the determination. Each time a predefined operation is performed, the information processing apparatus changes the force sense setting from a current force sense setting to a different force sense setting.

Abstract: Provided is a physical quantity sensor attached to an electronic device provided with an actuator. The physical quantity sensor includes: a sensor element configured to output a detection signal corresponding to a physical quantity; and a circuit device configured to output an actuator drive signal for driving the actuator based on the detection signal. The circuit device has a resonance characteristic measurement mode of outputting the actuator drive signal for measuring a resonance characteristic of the electronic device by vibrating the electronic device, and a vibration-damping mode of outputting the actuator drive signal for reducing a vibration of the electronic device based on the resonance characteristic measured in the resonance characteristic measurement mode.

Abstract: Provided is a physical quantity sensor attached to an electronic device provided with an actuator. The physical quantity sensor includes: a sensor element configured to output a detection signal corresponding to a physical quantity; a memory configured to store a resonance characteristic of the electronic device; a signal output circuit configured to output an actuator drive signal for driving the actuator to reduce a vibration corresponding to the resonance characteristic included in vibrations of the electronic device indicated by the detection signal; and an interface circuit configured to rewrite the resonance characteristic stored in the memory according to an external signal.

Abstract: A physical quantity detection circuit includes an analog/digital conversion circuit having an input capacitance and sampling an analog signal in the input capacitance to convert the analog signal into a digital signal, a precharge circuit for precharging the input capacitance before the analog/digital conversion circuit sample the analog signal in the input capacitance, a digital arithmetic circuit for performing arithmetic processing to the digital signal, and a reference voltage circuit for supplying a power supply voltage to the precharge circuit and the digital arithmetic circuit, wherein the arithmetic processing start timing and the arithmetic processing end timing of the digital arithmetic circuit are set to the timings avoiding the precharge period in which the precharge circuit precharges the input capacitance.

Abstract: The connector device includes a metal internal member, a metal light guide rod and metal fixing bases and, which are connected to the internal member, a resin sheathing member that accommodates the internal member and includes leading-out holes, which lead the light guide rod and the fixing base to the outside, and fluoro rubber O-rings, which are provided on the light guide rod and the fixing bases, the O-rings being respectively placed in gaps between the light guide rod and the fixing bases and the leading-out holes and sealing the inside of the sheathing member.

Abstract: Provided is an endoscope that can connect proximal ends of the first signal lines and a signal relay part together without securing an extra length for the first signal lines. An airtight casing is disposed inside an outer tube of an insertion part, an imaging device and first signal lines are accommodated inside the airtight casing, a distal end of the airtight casing is airtightly sealed by a cover glass, and a proximal end of the airtight casing is airtightly sealed by a partition wall part. The airtight casing is constituted of a first tubular body and a second tubular body, and the second tubular body is disposed in a nested shape with respect to the first tubular body. During the connection between the proximal ends of the first signal lines and the terminal part, the second tubular body is advanced toward the first tubular body.

Abstract: A physical quantity detection circuit includes a passive filter that receives a first analog signal based on an output signal of a physical quantity detection element, an analog/digital conversion circuit, and a precharge circuit that includes an operational amplifier, a first chopper circuit provided between the passive filter and the operational amplifier, and a second chopper circuit provided between the operational amplifier and the input capacitance of the analog/digital conversion circuit and precharges an input capacitance of the analog/digital conversion circuit, the first and the second chopper circuits perform a chopping operation in synchronization with an operation that the analog/digital conversion circuit samples the second analog signal at the input capacitance, based on an output signal of the passive filter.

Abstract: An image pickup device that is provided at a distal end portion of an insertion unit of an endoscope having a longitudinal axis, includes: a first lens barrel that houses a first optical system; a second lens barrel that is disposed on a proximal end side of the first lens barrel, houses a second optical system on which light having passed through the first optical system is to be incident, and includes a second lens barrel-distal end portion that is a distal end portion having a diameter smaller than a diameter of a first lens barrel-proximal end portion which is a proximal end portion of the first lens barrel; a sliding part that is provided around an outer peripheral surface of the second lens barrel-distal end portion and that is in contact with the first lens barrel-proximal end portion; and a pressing member that is externally fitted over the sliding part from the first lens barrel-proximal end portion.

Abstract: A wireless device is configured to perform wireless communication with one or more terminals and includes an antenna configured to perform wireless communication, a wireless interface configured to perform wireless communication with the one or more terminals through the antenna, and a processor configured to acquire an azimuth and a weighting coefficient of each of the one or more terminals, and determine a direction of the antenna based on the azimuth and the weighting coefficient of each of the one or more terminals.

Abstract: A communication device includes: a distance information acquisition unit configured to acquire distance information indicating a distance to a communication target; a setting information acquisition unit configured to acquire setting information including a communication distance; and a communication unit configured to communicate with the communication target. The distance information acquisition unit acquires the distance information after the communication unit establishes connection with the communication target. The communication unit cuts the connection with the communication target when the distance information does not satisfy the communication distance included in the setting information.

Abstract: An image display system includes a plurality of terminals each having a first screen and a display control device that controls a display device including a second screen. The plurality of terminals each transmit to the display control device an image of an active window on the first screen and image supplemental information including image position information indicating a position of the image on the first screen. The display control device receives the image and the image supplemental information, determines a position of the image on the second screen based on the image supplemental information, and causes the image to be displayed at the position determined on the second screen.

Abstract: A physical quantity detection circuit includes an analog/digital conversion circuit having an input capacitance and sampling an analog signal in the input capacitance to convert the analog signal into a digital signal, a precharge circuit for precharging the input capacitance before the analog/digital conversion circuit sample the analog signal in the input capacitance, a digital arithmetic circuit for performing arithmetic processing to the digital signal, and a reference voltage circuit for supplying a power supply voltage to the precharge circuit and the digital arithmetic circuit, wherein the arithmetic processing start timing and the arithmetic processing end timing of the digital arithmetic circuit are set to the timings avoiding the precharge period in which the precharge circuit precharges the input capacitance.

Abstract: An image display system includes a plurality of terminals each having a first screen and a display control device that controls a display device including a second screen. The plurality of terminals each transmit to the display control device an image of an active window on the first screen and image supplemental information including image position information indicating a position of the image on the first screen. The display control device receives the image and the image supplemental information, determines a position of the image on the second screen based on the image supplemental information, and causes the image to be displayed at the position determined on the second screen.

Abstract: A wireless communication system includes a reception terminal used by a user, and a transmission terminal that transmits data to the reception terminal in a wireless communication method having directivity. The transmission terminal notifies of a directional area connectable by the wireless communication method when a connection authentication in the wireless communication method with the reception terminal is successful. The transmission terminal does not notify of the directional area connectable by the wireless communication method when the connection authentication with the reception terminal is failed.