Abstract: The present invention relates to a manufacturing method for a hollow fiber membrane sheet comprising: accepting a hollow fiber membrane bundle, which is in a sheet state, of a length set in advance in which a plurality of hollow fiber membranes are aligned using one or more accepting means containing a drive roll; forming fixing parts at which the hollow fiber membranes are fixed in a widthwise direction of the hollow fiber membrane bundle using a fixing means after accepting the hollow fiber membrane bundle of the length set in advance; and cutting the hollow fiber membrane bundle at the fixing parts or on the vicinity thereof.

Abstract: The present invention of a method for producing a porous membrane including a solidification step of forming a porous membrane, and a heating step of drying the porous membrane, wherein the heating step includes at least a water reduction step of the porous membrane, the water reduction step uses a heating medium, and the temperature of the heating medium (Tgh) satisfies a relation of tgh>Td, when Td represents the heat deformation temperature of a membrane material. The present invention of a drying device of a porous membrane including a water reduction unit, and a final drying unit, wherein the drying device includes a membrane-surface-temperature measurement means for measuring the surface temperature of the porous membrane and the final drying unit, and a control means for controlling the temperature and/or the flow speed of the heating medium of the water reduction unit.

Abstract: A hollow fiber membrane-spinning nozzle that spins a hollow fiber membrane having a porous membrane layer and a support is provided in which the nozzle includes a resin flow channel through which a membrane-forming resin solution forming the porous membrane layer flows, the resin flow channel includes a liquid storage section that stores the membrane-forming resin solution and a shaping section that shapes the membrane-forming resin solution in a cylindrical shape and satisfies at least one of conditions (a) to (c): (a) the resin flow channel is disposed to cause the membrane-forming resin solution to branch and merge; (b) a delay means for delaying the flow of the membrane-forming resin solution is disposed in the resin flow channel; and (c) the liquid storage section or the shaping section includes branching and merging means for the membrane-forming resin solution therein.

Abstract: The present invention of a method for producing a porous membrane including a solidification step of forming a porous membrane, and a heating step of drying the porous membrane, wherein the heating step includes at least a water reduction step of the porous membrane, the water reduction step uses a heating medium, and the temperature of the heating medium (Tgh) satisfies a relation of tgh>Td, when Td represents the heat deformation temperature of a membrane material. The present invention of a drying device of a porous membrane including a water reduction unit, and a final drying unit, wherein the drying device includes a membrane-surface-temperature measurement means for measuring the surface temperature of the porous membrane and the final drying unit, and a control means for controlling the temperature and/or the flow speed of the heating medium of the water reduction unit.

Abstract: A hollow fiber membrane-spinning nozzle that spins a hollow fiber membrane having a porous membrane layer and a support is provided in which the nozzle includes a resin flow channel through which a membrane-forming resin solution forming the porous membrane layer flows, the resin flow channel includes a liquid storage section that stores the membrane-forming resin solution and a shaping section that shapes the membrane-forming resin solution in a cylindrical shape and satisfies at least one of conditions (a) to (c): (a) the resin flow channel is disposed to cause the membrane-forming resin solution to branch and merge; (b) a delay means for delaying the flow of the membrane-forming resin solution is disposed in the resin flow channel; and (c) the liquid storage section or the shaping section includes branching and merging means for the membrane-forming resin solution therein.

Abstract: An electrophoretic device in the form of a casing having inside sealed spaces isolated by an electrophoretic carrier. The device includes at least one liquid injection/discharge opening, communicable with the outside, on the outer wall of said sealed spaces. An electrophoretic method and a specimen detection method use the device. Additionally, an electrophoresis apparatus can have a structure for sandwiching the electrophoretic carrier between a pair of electrodes, and can have a space capable of holding liquid between the sandwiched electrophoretic carrier and the respective electrodes, and an electrophoretic method uses the same device.

Abstract: The present invention relates to biological substance-immobilized fibers wherein a biological substance is immobilized on a fiber, fibers retaining a biological substance-immobilized gel, and fiber alignments having bundles of the above-described fibers and slices of the same.

Abstract: By the present invention, there is provided a fiber having nucleic acid immobilized thereon, an alignment of fibers having nucleic acid immobilized thereon, and a slice thereof.

Abstract: The present invention relates to an electrophoretic device in the form of a casing having inside sealed spaces isolated by an electrophoretic carrier, wherein the device comprises at least one liquid injection/discharge opening, communicable with the outside, on the outer wall of said sealed spaces, and an electrophoretic method and a specimen detection method using the device. Additionally, the present invention relates to an electrophoresis apparatus having a structure for sandwiching the electrophoretic carrier between a pair of electrodes, and having a space capable of holding liquid between the sandwiched electrophoretic carrier and the respective electrodes, and to an electrophoretic method using the same device.

Abstract: An angle transducer which photo-electrically measures the rotation angle of a shaft by utilizing, a polarizer disc is arranged as follows: the polarizer disc is secured to the shaft to be measured or to the detection shaft of the angle transducer. Two pairs of photo-electric conversion elements are in opposition to light sources across the polarizer disc. The first and second polarizer plates are interposed between the photo-electric conversion elements of each pair. The transmission axes of the first and second polarizer plates differ from each other by 45 degrees. The quantities of light emitted by the light sources or the outputs of the photo-electric conversion elements are modulated by carrier waves of two phases differing 90 degrees from each other. The amplitudes of the outputs correspond to the sine and cosine functions of the double angle of the rotation angle of the shaft to be measured. These outputs form modulated waves of two phases differing 90 degrees from each other.

Abstract: An instantaneous torque determining apparatus for obtaining the instantaneous torque value continuously of a shaft rotating at a high speed. The apparatus includes a pair of spaced gears mounted on the shaft, a torque detector having a pickup for each gear, a set of voltage comparators, a gate control circuit, an AND circuit, and a clock pulse generator. Further, the apparatus also includes a delay circuit for receiving pulses from a voltage comparator, a subtraction counter which receives a delayed pulse as a subtractor starting instruction, and a set of first and second ratio multipliers forming a counting circuit loop with the counter. First and second latch circuits store the counted value outputs and apply such outputs as an input to another counter and to a Digital-Analogue transducer. The pick-ups of the torque detectors are respectively arranged to face the gear to provide voltage signals in pulse form when the shaft rotates and each tooth of the gear passes in front of its respective pick-up.

Abstract: The present invention relates to a gear mesh testing instrument in which the transmission error occurring between the two gears to be tested (the driving gear and the driven gear) is measured while both gears are rotating while intermeshed with each other. A pulse generator is connected to the rotating shaft of the driving gear, and of the driven gear, respectively, so as to produce two pulse signals having frequencies proportional to the number of the rotation of the gears. Then, the two pulse signals are introduced into the gear number compensating circuit so as to be converted into two pulse signals having a same frequency. The transmission error is proportional to the phase difference between the two pulse signals having the same frequency, which phase difference is proportional to the ratio of the phase difference time between the two pulse signals to the period of pulse signal.