Abstract: This vibration actuator has a movable body having a coil, a fixed body having magnets, and a shaft part that rotatably supports the movable body, wherein the movable body reciprocally and rotationally vibrates around the shaft part with respect to the fixed body through the interaction of the coil and the magnets. The magnets are arranged in a direction perpendicular to the axial direction of the shaft part and each have two magnetic poles that face the movable body in the coil axial direction of the coil, the shaft part supports the movable body at a position shifted from the center position of the movable body in a direction perpendicular to the axial direction of the shaft part, and the coil axis of the coil of the movable body is located at a position facing a switching position of the magnetic pole of the magnet.

Abstract: A facility usage control apparatus is configured to register identity identification information for registration of a user who makes a reservation to use a predetermined facility, a mobile terminal of the user, and reservation information of the facility in association with each other, control authentication using the identity identification information for registration based on identity identification information for authentication acquired from the user through a first authentication terminal installed at the facility, identify the reservation information associated with the identity identification information for registration of the user who has been successfully authenticated, determine availability of the facility based on the identified reservation information, make a signature request to the mobile terminal associated with the identity identification information for registration when the user is determined that he/she can use the facility, and acquire signature data input by the user to the mobile ter

Abstract: An antenna device includes: a planar antenna; and a metal body arranged a predetermined distance above the planar antenna, wherein the metal body is shifted in a predetermined direction with respect to the planar antenna, wherein the metal body is a metal plate and/or a parasitic element. The antenna device further includes an antenna which corresponds to a frequency band different from that of the planar antenna and a holder configured to maintain the predetermined distance between the planar antenna and the metal body, wherein the antenna is arranged in the predetermined direction.

Abstract: The purpose of the present invention is to provide a methyl methacrylate-containing composition with high quality stability during storage. This can be solved with a methyl methacrylate-containing composition, a pyrazine compound represented by Formula (1) (component A1), and a polymerization inhibitor (Component B1), in which the concentration of methyl methacrylate is from 99 to 99.99% by mass.

Abstract: A composition for forming a resist underlayer film that enables the formation of a desired resist pattern; and a method for producing a resist pattern and a method for producing a semiconductor device, each of which uses said composition for forming a resist underlayer film. A resist underlayer film-forming composition includes a solvent and a polymer having a unit structure represented by formula (I): (in formula (I), A1, A2, A3, A4, A5, and A6 each independently represent a hydrogen atom, a methyl group, or an ethyl group, Q1 represents a divalent organic group, R1 represents a tetravalent organic group including a C6-40 aromatic ring structure, and L1 and L2 each independently represent a hydrogen atom or a C1-10 alkyl group optionally substituted with a hydroxy group and optionally interrupted by an oxygen atom).

Abstract: The purpose of the present invention is to provide a methyl methacrylate-containing composition with high quality stability during storage. This can be solved with a methyl methacrylate-containing composition containing methyl methacrylate, and an alkyl-substituted aryl compound represented by the following Formula (1), in which the concentration of methyl methacrylate is from 99 to 99.99% by mass.

Abstract: The purpose of the present invention is to provide a methyl methacrylate-containing composition with high quality stability during storage. This can be solved with a methyl methacrylate-containing composition containing methyl methacrylate, an ?,?-unsaturated carbonyl compound represented by the following Formula (1), and a polymerization inhibitor, in which the concentration of methyl methacrylate is from 99 to 99.99% by mass.

Abstract: An object of the present invention is to provide a methyl methacrylate-containing composition having high storage and heat stability. This can be solved with a methyl methacrylate-containing composition containing methyl methacrylate, an ester compound having an alpha-hydrogen represented by Formula (1) (component A), and a polymerization inhibitor (component B), in which the concentration of methyl methacrylate is from 99% by mass to 99.99% by mass.

Abstract: The purpose of the present invention is to provide a methyl methacrylate-containing composition with high quality stability during storage. This can be solved with a methyl methacrylate-containing composition comprising methyl methacrylate, and an aryl alkyl ether compound represented by the following Formula (1), in which the concentration of methyl methacrylate is from 99 to 99.99% by mass.

Abstract: The purpose of the present invention is to provide a methyl methacrylate-containing composition with high quality stability during storage. This can be solved with a methyl methacrylate-containing composition comprising methyl methacrylate, a nitrile compound represented by the following Formula (1), and a polymerization inhibitor, in which the concentration of methyl methacrylate is from 99 to 99.99% by mass.

Abstract: A biological information measurement apparatus includes: a pressure sensor including a pressure detecting element; a pressing mechanism which presses the pressure sensor against an artery in a living body; a press controller which controls a pressing force of the pressing mechanism; a blood flow sensor; a blood flow information measurer which measures blood flow information based on output of the blood flow sensor; a pressing force decider which decides a first pressing force based on blood flow information measured during a pressing force control time period when the pressing force is changed in one direction, and information of a pressure pulse wave detected during the pressing force control time period; and a record controller which records a pressure pulse wave detected in a first state where the pressing force is controlled to the first pressing force, and blood flow information measured in the first state.

Abstract: An adjustment of the amount of energy in at least one specific applying unit is executed when energy is applied to a cylindrical member pair in which another cylindrical member is inserted inside a cylindrical member to melt and weld the cylindrical member pair in a circumferential direction. The adjustment is executed in association with a rotation angle to satisfy a relationship of Pd+Pw>?, wherein Pd is an output decease rotation angle that decreases the energy amount from a steady energy amount HP applied from the specific applying unit in a welding end process, Pw is an overlap rotation angle at which the irradiation parts around the cylindrical member pair overlap with the steady energy amount HP, and ? is a separation angle between the specific applying unit and another applying unit adjacent to each other in a rotation direction around the axis.

Abstract: An antenna device includes: a circuit board; an antenna placed on the circuit board; and a reflector that is erected on the circuit board and extends along its surface. The reflector has: a convexly curved portion protruding toward the antenna, the convexly curved portion reflecting radio waves emitted by the antenna; and a first plane portion and second plane portion that extend from both sides of the convexly curved portion along the surface of the circuit board, form a V shape together with the convexly curved portion in plan view, and reflect radio waves emitted by the antenna. The surface of the convexly curved portion has a shape equivalent to a portion on the outer circumferential surface of a cylinder, the portion being the range of an azimuth angle with respect to a cylindrical axis. The convexly curved portion is inclined toward the antenna with respect to the circuit board.

Abstract: A bearing unit is provided with a strain element for torque detection. The strain element is provided with a first annular part attached to a rotation-side member, a second annular part attached to a load-side member, and a plurality of ribs serving as strained parts linking the first annular part and the second annular part together. One of an inner race and an outer race is integrally formed on the first annular part of the strain element. Deformation, which occurs in the ribs of the strain element due to torque exerted on the rotation-side member from the load-side member, is detected by a strain gauge, etc., and converted to torque. The strain element for torque detection can be incorporated into a motor, a reducer, or another rotary propulsion unit without the need for a dedicated installation space and without the need for fastening fittings, etc.

Abstract: A gas solenoid valve includes: a housing including a first port, a second port, and a valve port leading to the first port and the second port; a main valve body capable of moving between a closed position thereof closing the valve port and an open position thereof opening the valve port and configured to move in an opening direction from the closed position to the open position by pressure of gas supplied through the first port; a biasing member that provides a biasing force acting in a closing direction to the main valve body to position the main valve body in the closed position; and an electromagnetic drive device that generates an excitation force opposing the biasing force of the biasing member to cause the main valve body to move to the open position. A damping chamber in the housing dampens movement of the main valve body.

Abstract: A composition for forming a resist underlayer film that enables the formation of a desired resist pattern; and a method for producing a resist pattern and a method for producing a semiconductor device, each of which uses the resist underlayer film-forming composition. The resist underlayer film-forming composition comprises an organic solvent and the reaction product of (A) a hydantoin-containing compound that has two epoxy groups and (B) a hydantoin-containing compound different from (A). This reaction product is preferably the reaction product of a secondary amino group present in the hydantoin-containing compound (B) and the epoxy group present in the hydantoin-containing compound (A).

Abstract: A rotary encoder is incorporated in an annular space formed between a hollow rotating shaft and an encoder case. The rotary encoder has an annular printed wiring substrate, a plurality of mounting substrates that are outward from the printed wiring substrate in the radial direction and are arranged in the circumferential direction, and inter-substrate wiring cables bridged between the printed wiring substrate and each of the mounting substrates in the radial direction. Power supply to the mounting substrates and signal transmission and reception between the mounting substrates can be accomplished without routing around the wiring cables. It is possible to achieve a rotary encoder that is suitable for being incorporated in a narrow annular space.

Abstract: A martensitic stainless steel contains 0.20 mass %?C?0.60 mass %, 0.10 mass %?N?0.50 mass %, 14.00 mass %?Cr?17.00 mass %, 1.00 mass %?Mo?3.00 mass %, 0.20 mass %?V?0.40 mass %, Si?0.30 mass %, Mn?0.80 mass %, P?0.040 mass %, S?0.040 mass %, Cu?0.25 mass %, Ni?0.20 mass %, and the balance Fe with inevitable impurities.

Abstract: An antenna device includes: a planar antenna; and a metal body arranged a predetermined distance above the planar antenna, wherein the metal body is shifted in a predetermined direction with respect to the planar antenna, wherein the metal body is a metal plate and/or a parasitic element. The antenna device further includes an antenna which corresponds to a frequency band different from that of the planar antenna and a holder configured to maintain the predetermined distance between the planar antemla and the metal body, wherein the antenna is arranged in the predetermined direction.

Abstract: To suppress heat generation in a stacked battery including a plurality of electric elements in internal short circuits and an unstable reaction when the battery is operated while an energy level is increased, the stacked battery includes a stack comprising a first current collector layer, a second current collector layer, a plurality of bipolar current collector layers that are arranged between the first and second current collector layers at intervals in the stacking direction, a plurality of electric elements, an anode active material layer, and an electrolyte layer that is arranged between the cathode and anode active material layers, where the ratio h/S (cm?1) of a length h (cm) between the one end face and the other end face in the stacking direction of the stack to an electrode area S (cm2) on a cross section orthogonal to the stacking direction of the stack is more than 1.