Abstract: A liquid discharge head includes a nozzle plate, a housing, a channel, and a positioning member. The nozzle plate has a nozzle hole and a first positioning hole penetrating through the nozzle plate in a thickness direction of the nozzle plate. The housing is bonded to the nozzle plate to form a single bonded body and has a second positioning hole extending in a thickness direction of the housing. A liquid flows through the channel between the nozzle plate and the housing to the nozzle hole. The positioning member fits into the first positioning hole and the second positioning hole to position the nozzle plate relative to the housing. A length of the positioning member is smaller than a sum of a length of the first positioning hole and a length of the second positioning hole in the thickness direction of the nozzle plate, and larger than the length of the second positioning hole.

Abstract: A stator of an electric motor has a cylinder-shaped stator core. First core teeth and second core teeth are alternately arranged in the circumferential direction on the inner peripheral surface of the stator core. The second core teeth each have a cross-sectional shape perpendicular to the central axis of the stator core different from the cross-sectional shape of the first core tooth. A coil is assembled to the first tooth. The coil is assembled to one of the first core tooth and the second core tooth. The width of the second core tooth is reduced with a step of a curved surface at a boundary between the tip end portion and a portion behind of the tip end portion.

Abstract: A rotor includes a plurality of magnets supported by a rotor core, and end plates disposed so as to sandwich end faces on both sides of the rotor core. Each of the end plates is formed of a material having magnetism. The end plate includes a cutout portion having a shape in which a surface of the end plate is away from an end face of each of the plurality of magnets. The cutout portion is formed in a region facing the magnet.

Abstract: A stator of an electric motor has a cylinder-shaped stator core. First core teeth and second core teeth are alternately arranged in the circumferential direction on the inner peripheral surface of the stator core. The second core teeth each have a cross-sectional shape perpendicular to the central axis of the stator core different from the cross-sectional shape of the first core tooth. A coil is assembled to the first tooth. The coil is assembled to one of the first core tooth and the second core tooth. The width of the second core tooth is reduced with a step of a curved surface at a boundary between the tip end portion and a portion behind of the tip end portion.

Abstract: A temperature estimating device configured to estimate a temperature of an electric motor includes a temperature detecting part for acquiring a detected temperature detected by a temperature sensor attached to the electric motor, a memory part for successively storing the detected temperature acquired by the temperature detecting part at a predetermined sampling period, and a temperature estimating part for using the detected temperature stored by the memory part, a ratio of amount of change of the detected temperature with respect to time, and a coefficient as the basis to estimate a temperature of a measurement target part of the electric motor.

Abstract: A machine learning apparatus includes a state observing unit for observing a state variable comprised of at least one of an actual dimension value, a resistance actual value, etc., and at least one of a dimension command value, a resistance command value, etc., and an execution time command value for a program, and a learning unit for performing a learning operation by linking at least one of an actual dimension value, a resistance actual value, etc., to at least one of a dimension command value, a resistance command value, etc., observed by the state observing unit, and an execution time command value for the program.

Abstract: A machine learning apparatus includes a state observing unit and a learning unit. The state observing unit observes a state variable comprised of at least one of an adhesion state, a dielectric strength voltage, an electric heating time temperature, and an actual electric heating time value of a coil electrically heated by a coil electric heating unit, and at least one of an electric heating time command value, a voltage, and a current in the coil electric heating unit. The learning unit performs a learning operation by linking at least one of an adhesion state, a dielectric strength voltage, an electric heating time temperature, and an actual electric heating time value of the coil observed by the state observing unit to at least one of the electric heating time command value, the voltage, and the current, which are observed by the state observing unit.

Abstract: To provide a nonaqueous electrolytic storage element, which contains: a positive electrode, which contains a positive electrode material layer including a positive electrode active material capable of reversibly accumulating and releasing anions; a negative electrode, which contains a negative electrode material layer including a negative electrode active material capable of reversibly accumulating and releasing cations; a separator provided between the positive electrode and the negative electrode; and a nonaqueous electrolyte containing an electrolyte salt, wherein a pore volume of the negative electrode material layer per unit area of the negative electrode is larger than a pore volume of the positive electrode material layer per unit area of the positive electrode.

Abstract: A machine learning apparatus includes a state observing unit and a learning unit. The state observing unit observes a state variable comprised of at least one of an adhesion state, a dielectric strength voltage, an electric heating time temperature, and an actual electric heating time value of a coil electrically heated by a coil electric heating unit, and at least one of an electric heating time command value, a voltage, and a current in the coil electric heating unit. The learning unit performs a learning operation by linking at least one of an adhesion state, a dielectric strength voltage, an electric heating time temperature, and an actual electric heating time value of the coil observed by the state observing unit to at least one of the electric heating time command value, the voltage, and the current, which are observed by the state observing unit.

Abstract: A machine learning apparatus includes a state observing unit for observing a state variable comprised of at least one of an actual dimension value, a resistance actual value, etc., and at least one of a dimension command value, a resistance command value, etc., and an execution time command value for a program, and a learning unit for performing a learning operation by linking at least one of an actual dimension value, a resistance actual value, etc., to at least one of a dimension command value, a resistance command value, etc., observed by the state observing unit, and an execution time command value for the program.

Abstract: A temperature estimating device configured to estimate a temperature of an electric motor includes a temperature detecting part for acquiring a detected temperature detected by a temperature sensor attached to the electric motor, a memory part for successively storing the detected temperature acquired by the temperature detecting part at a predetermined sampling period, and a temperature estimating part for using the detected temperature stored by the memory part, a ratio of amount of change of the detected temperature with respect to time, and a coefficient as the basis to estimate a temperature of a measurement target part of the electric motor.

Abstract: To provide a nonaqueous electrolytic storage element, which contains: a positive electrode, which contains a positive electrode material layer including a positive electrode active material capable of reversibly accumulating and releasing anions; a negative electrode, which contains a negative electrode material layer including a negative electrode active material capable of reversibly accumulating and releasing cations; a separator provided between the positive electrode and the negative electrode; and a nonaqueous electrolyte containing an electrolyte salt, wherein a pore volume of the negative electrode material layer per unit area of the negative electrode is larger than a pore volume of the positive electrode material layer per unit area of the positive electrode.

Abstract: To provide nonaqueous electrolytic storage element, containing: a positive electrode, which contains a positive electrode active material capable of accumulating and releasing anions; a negative electrode containing a negative electrode active material capable of accumulating and releasing cations; and a nonaqueous electrolyte containing an electrolyte salt, wherein a capacity of the negative electrode per unit area is larger than a capacity of the positive electrode per unit area, and wherein an amount of the electrolyte salt in the nonaqueous electrode at the time of completion of charging after 50 cycles of charging and discharging is 0.2 mol/L to 1 mol/L, where the cycle of charging and discharging contains charging the nonaqueous electrolytic storage element to 5.2 V with constant electric current of 0.5 mA/cm2, followed by discharging the nonaqueous electrolytic storage element to 2.5 V with constant electric current of 0.5 mA/cm2.

Abstract: A rotor includes a rotor core having an outer circumferential surface provided with projections extending in a direction of a rotational axis and projecting outwardly in a radial direction, and a plurality of permanent magnets arranged between the projections. The projections extend at an angle with respect to the direction of a rotational axis. The permanent magnets have inclined sides on both side faces, which incline with respect to the direction of a rotational axis. Side faces of the projections and the inclined side of the permanent magnets which face each other incline so as to define the same angle with respect to the direction of a rotational axis. An electric motor including such a rotor is also provided.

Abstract: A rotor includes a rotor core having an outer circumferential surface provided with projections extending in a direction of a rotational axis and projecting outwardly in a radial direction, and a plurality of permanent magnets arranged between the projections. The projections extend at an angle with respect to the direction of a rotational axis. The permanent magnets have inclined sides on both side faces, which incline with respect to the direction of a rotational axis. Side faces of the projections and the inclined side of the permanent magnets which face each other incline so as to define the same angle with respect to the direction of a rotational axis. An electric motor including such a rotor is also provided.

Abstract: A disk rotating device includes a flexible disk in which information is recordable, a turntable on which the disk is held, a spindle that rotates the disk held on the turntable, and a stabilizer that stabilizes the rotating disk. In the disk rotating device, a rotation transmitting device transmits the rotation of the spindle to the disk via the turntable, and a disk holding device holds the disk so that the disk is elastically deformable from a center of the rotation of the disk in a radial direction of the disk.

Abstract: An infusion pump module configured to transfer liquid includes a liquid inlet part including an inlet for the liquid; a liquid outlet part including an outlet for the liquid; a pump part including a piezoelectric element; and a flow sensor part configured to measure the flow rate of the liquid flowing through the infusion pump module, wherein the liquid inlet part, the liquid outlet part, the pump part, and the flow sensor part are connected to allow the liquid flowing in through the liquid inlet part to flow out through the liquid outlet part, and the liquid inlet part, the liquid outlet part, the pump part, and the flow sensor part are connected to form a single channel.

Abstract: An infusion pump module includes a body case that includes an inflow channel for a liquid medicine; a first connecting flow channel; a second connecting flow channel; and an outflow channel; an auxiliary case joined to the body case and includes an auxiliary flow channel connected to the first and second connecting flow channel; a flow sensor that forms a measurement flow channel and measures a flow rate of the liquid medicine; an infusion pump that forms a transfer flow channel connected to the inflow channel and the first connecting flow channel, and discharges the liquid medicine by a piezoelectric element; a gasket that seals each connection portion between the inflow channel and the transfer flow channel and so on; and a cover case fastened to the body case to fix the gasket, the infusion pump, and the flow sensor to the body case.

Abstract: An infusion pump module for transferring fluid includes a fluid inlet part having an inlet to receive the fluid, a fluid outlet part having an outlet to discharge the fluid, a pump unit having a piezoelectric element, and a flow rate sensor to measure a flow rate of the fluid flowing inside the module, wherein the fluid inlet part, the fluid outlet part, the pump unit, and the flow rate sensor are connected together to cause the fluid received by the fluid inlet part to be discharged from the fluid outlet part, and the fluid inlet part, the fluid outlet part, the pump unit, and the flow rate sensor connected together form a single continuous flow channel.

Abstract: A method of molding an object with a mold having a transfer face includes the steps of filling, separating, re-melting, re-contacting, cooling, and removing. The filling step fills a thermoplastic material, having a temperature greater than a softening temperature of the thermoplastic material, into a cavity space in the mold having a temperature smaller than the softening temperature of the thermoplastic material. The thermoplastic material comes in contact with the transfer face and is cooled. The separating step separates the transfer face from the thermoplastic material to form a heat-insulating layer between the thermoplastic material and transfer face. The re-melting step re-melts the thermoplastic material with heat energy retained inside the thermoplastic material. The re-contacting step re-contacts the re-melted thermoplastic material to the transfer face. The cooling step cools the thermoplastic material to a temperature smaller than the softening temperature of the thermoplastic material.