Abstract: A measurement tool includes: a measurement tool body including a sample collection unit for collecting a liquid sample by a capillary phenomenon, and a liquid feed channel; and a lid body attachable to and detachable from the measurement tool body. The liquid feed channel includes an upstream side channel and a downstream side channel. A space is defined, into which an upstream side end of the sample collection unit and a downstream side end of the upstream side channel open, when the lid body is attached to the measurement tool body. The downstream side channel is connected to a downstream side end of the sample collection unit. The space is open when the lid body is separated from the measurement tool body, and the space is closed and the upstream side channel and the sample collection unit are connected when the lid body is attached to the measurement tool body.

Abstract: A battery exchanger is provided with a slot sleeve for accommodating a mobile battery in an insertable and removable manner. The slot sleeve has a tubular portion and a bottom portion connected to the tubular portion. The tubular portion surrounds the outer periphery of the mobile battery accommodated in the slot sleeve. The bottom portion has an air inlet for causing the inside and the outside of the slot sleeve to communicate with each other, and the tubular portion has exhaust slits for causing the inside and the out-side of the slot sleeve to communicate with each other.

Abstract: A battery exchanger that holds a mobile battery, and includes a male connector that is connected to a female connector of the mobile battery held in a slot sleeve for holding the mobile battery, and a connector unit that moves the male connector in a direction toward the female connector. The slot sleeve includes a bottom cover having a bottom part, and the male connector and the connector unit are attached to the bottom cover, and supported by the bottom cover.

Abstract: A negative electrode material that is used for a negative electrode of a lithium secondary battery containing a non-aqueous electrolyte solution, includes: a first layer that contains lithium metal as a negative electrode active material; and a second layer that is arranged on at least one surface of the first layer. The second layer consists of a compound represented by a general formula MxAy (M is an element selected from a group consisting of Al, In, Mg, Ag, Si, and Sn, and A is an element selected from a group consisting of O, N, P, and F, and 0.3<x/y<3). The second layer has a thickness of 100 nm or less.

Abstract: A semiconductor device according to an embodiment includes a semiconductor chip, a semiconductor element, a stacked body, and a structure body. The semiconductor chip includes a first surface, a second surface, and a side surface between the first surface and the second surface. The semiconductor element is provided in the center of the semiconductor chip when viewed from the normal direction of the first surface. The stacked body is provided at the outer peripheral end portion of the semiconductor chip when viewed from the normal direction and includes a plurality of first layers and a plurality of second layers alternately stacked in the normal direction. The structure body is provided in at least a part between the semiconductor element and the side surface when viewed from the normal direction and extending from a position higher than the stacked body to a position lower than the stacked body.

Abstract: A battery exchanger in which a mobile battery that has a connector is held by being accommodated or placed therein, wherein the battery exchanger has: a slot for holding the mobile battery; a connector provided to the slot in a manner allowing relative movement, the connector being connected to the connector; a through-hole provided to the slot, the connector being passed through the through-hole; and a shutter provided to the slot in a manner allowing relative movement, the shutter closing off at least a part of the through-hole.

Abstract: Provided is a holding device capable of holding an electric device preferably. A battery replacement machine holding a mobile battery is provided with: a battery tray on which the mobile battery is held and which is provided turnably about a turning axis so as to be positioned at first and second positions; and a front tray locking mechanism for regulating the turning of the battery tray when the battery tray is at the second position, wherein when the battery tray is at the first position, a bottom part holding the mobile battery is relatively close to a horizontal state as compared to when the battery tray is at the second position.

Abstract: Provided is a power transmission device with which it is possible to minimize transmission of an excessive external force. This power transmission device (200) has an input lever (204), an output lever (212), and a housing (202) that are capable of moving relative to each other and that are mechanically connected to each other so as to be capable of transmitting power therebetween. The power transmission device has: a main spring (208) disposed on a first power transmission path that is for transmitting power between the input lever (204) and the output lever (212); a return spring (216) disposed on a second power transmission path that is for transmitting power between the input lever (204) and the housing (202); and a damper (214) disposed on a third power transmission path that is for transmitting power between the output lever (212) and the housing (202).

Abstract: A racket includes: a grip; an annular frame; and a shaft coupling the grip and the frame together; wherein a projection is provided to an outer peripheral face on a leading end half of the frame in a predetermined range including a location of maximum curvature in a peripheral direction.

Abstract: An axial flow fan has a boss portion rotationally driven by a motor; a plurality of rotary blades extending radially from a periphery of the boss portion and configured to force air to flow in a direction of a rotation axis of the motor; and a bellmouth accommodating the plurality of rotary blades, the bellmouth comprising a suction-side round portion having a curved surface expanded in a radial direction of the bellmouth, and a discharge-side round portion having a curved surface expanded in the radial direction of the bellmouth, the plurality of rotary blades each being entirely inclined to have an outer peripheral portion in a downstream side in an airflow direction, entirety of the outer peripheral portion being located on the downstream side in the air flow direction with respect to the suction-side round portion.

Abstract: The present invention provides a refrigerating machine oil comprising at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less as a base oil, and the refrigerating machine oil being used with a trifluoroethylene refrigerant.

Abstract: Provided are a rotary device for fluid power generation and a fluid power generation device that are capable of converting the kinetic energy of a fluid to an electric energy. By utilizing a longitudinal vortex as a driving force, a rotary body such as a cylinder as a high-strength and tough wing-shaped member can be rotated, and power can be efficiently generated in a wide range of flow rate without letting the longitudinal vortex disappear even if the flow rate changes in a wide range. This rotary device for power generation includes a rotary body 3; and a wake body 8 that is a distance away from the rotary body 3 toward the downstream side of a flow direction 10 of the fluid, and has at least one crossover section at which the wake body 8 intersects with the rotary body 3.

Abstract: A racket includes: a grip; an annular frame; and a shaft coupling the grip and the frame together; wherein a projection is provided to an outer peripheral face on a leading end half of the frame in a predetermined range including a location of maximum curvature in a peripheral direction.

Abstract: The invention provides a refrigerating machine oil comprising a hydrocarbon-based base oil, the refrigerating machine oil having a viscosity index of 120 or less, and being used with a 1-chloro-3,3,3-trifluoropropene refrigerant.

Abstract: An axial flow fan improves air capacity and static pressure characteristics, and can ease stress at a leading edge portion of a blade base, even when a shape for noise reduction is adopted. An axial flow fan includes a boss portion and rotor blades. A rotor blade is segmented into a first area extending from the boss portion toward the outer peripheral side, and a second area connected to the first area and extending from the first area to the outermost periphery of the rotor blade. The distribution of a forward sweep angle varies quadratically in the first area, and the maximum forward sweep angle in the first area is not larger than the forward sweep angle in the second area. The distribution of chord-pitch ratio varies in a curved manner from the base as the minimum value in the first area, and is linear in the second area.

Abstract: Provided are a rotary device for fluid power generation and a fluid power generation device that are capable of converting the kinetic energy of a fluid to an electric energy. By utilizing a longitudinal vortex as a driving force, a rotary body such as a cylinder as a high-strength and tough wing-shaped member can be rotated, and power can be efficiently generated in a wide range of flow rate without letting the longitudinal vortex disappear even if the flow rate changes in a wide range. This rotary device for power generation includes a rotary body 3; and a wake body 8 that is a distance away from the rotary body 3 toward the downstream side of a flow direction 10 of the fluid, and has at least one crossover section at which the wake body 8 intersects with the rotary body 3.

Abstract: The present invention provides a refrigerating machine oil comprising a polyvinylether having a structural unit represented by the following formula (1): wherein R1, R2, and R3 may be the same or different from each other and each represent a hydrogen atom or a hydrocarbon group, R4 represents a divalent hydrocarbon group or an ethereal oxygen-containing divalent hydrocarbon group, R5 represents a hydrocarbon group, m represents an integer of 0 or more, and in the case where m is 2 or more, a plurality of R4 may be the same or different from each other, a number average molecular weight Mn is 500 or more and 2000 or less, a ratio of a weight average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, is 1.10 or more and 1.25 or less, and the refrigerating machine oil is used with a mildly flammable hydrofluorocarbon refrigerant.

Abstract: The present invention provides a refrigerating machine oil comprising: a base oil comprising an ester of a polyhydric alcohol and a fatty acid comprising 20 to 100% by mol of a branched fatty acid having 4 to 9 carbon atoms; and 0.2 to 0.5% by mass of a phenol-based antioxidant based on a total amount of the refrigerating machine oil, and the refrigerating machine oil being used with trifluoroethylene refrigerant.

Abstract: When musical piece is reproduced and outputted, an attribute information acquisition unit acquires attribute information for the musical piece. An attribute information acquisition unit transmits, to a management device, the attribute information as attribute specification information. In the management device, when the attribute specification information has been received, a derivation unit acquires, from adjustment information in a storage unit, octave band information for setting, musical instrument frequency of appearance for setting, and L/R phase difference information for setting that correspond to the attribute specification information. On this basis, the derivation unit generates sound quality adjustment setting value updating information, speaker setting updating information, and signal processing setting updating information, and transmits, to a sound device, these pieces of information as setting updating information.