Abstract: A solution supply device supplies a plurality of solutions including a reaction liquid to an examination kit having a flow channel that transports the reaction liquid and is over a substrate formed of a resin, a solid-phase part in the flow channel and on which antibodies are solid-phased, a detection part for detecting a reaction of the liquid to the antibodies, and a fine uneven structure that has a plurality of protrusions and is formed integrally with the substrate in a region with the flow channel. The device has a solution unit having a plurality of solution accommodating parts, a communicating unit having a plurality of communicating parts for the solution accommodating parts and communicating with the inside and outside of the solution accommodating parts to supply the solutions to the kit, and a positioning part for arranging the communicating parts in positions for communicating with the solution accommodating parts.

Abstract: A power conversion device includes two lower arm switching elements connected in parallel to each other and a lower arm driver circuit that drives the two lower arm switching elements. The two lower arm switching elements respectively include gate terminals and detection terminals used to detect counter-electromotive forces. The power conversion device includes a common connection line that connects the two detection terminals to each other and connects the two detection terminals to an addition circuit of the lower arm driver circuit. A combined electromotive force is transmitted via the common connection line.

Abstract: A test device includes: a flow path provided on one surface of a sheet substrate for transferring a liquid sample by a capillary phenomenon; a detection zone provided in a portion of the flow path; and a fine rough structure A having a plurality of convex portions, the fine rough structure A being provided at least in the detection zone and formed integrally with the sheet substrate in the flow path, in which in the detection zone, a detection substance that specifically binds to a substance to be detected in the liquid sample is immobilized on a surface of the fine rough structure A, and the test device is configured to detect the substance to be detected by sensing a change in optical characteristics of the detection zone occurring due to an enzymatic reaction.

Abstract: A power conversion device includes two lower arm switching elements connected in parallel to each other and a lower arm driver circuit that drives the two lower arm switching elements. The two lower arm switching elements respectively include gate terminals and detection terminals used to detect counter-electromotive forces. The power conversion device includes a common connection line that connects the two detection terminals to each other and connects the two detection terminals to an addition circuit of the lower arm driver circuit. A combined electromotive force is transmitted via the common connection line.

Abstract: An examination kit includes a flow channel (2) provided on a substrate formed of resin and transporting a liquid sample from one end side to the other end side, a solid-phase part (50) provided on the other end side of the flow channel (2), in which an antibody is set to a solid-phase, a detection unit (two electrodes (20)) provided with an electrode portion to detect a reaction of the liquid sample with respect to the antibody, and a fine uneven structure having a plurality of protrusions formed integrally with the flow channel (2), in which the fine uneven structure has a first fine structure region (31) in which the plurality of protrusions are provided relatively loosely, and a second fine structure region (32) in which the plurality of protrusions are provided relatively densely, and the first fine structure region (31) and second fine structure region (32) are provided further toward the one end side of the flow channel (2) than the solid-phase part (50).

Abstract: In one cross-section, a protrusion (8) has a first region (RG1) and a second region (RG2). In the one cross-section, the first region (RG1) of the protrusion (8) has a height H1 in a height direction (y direction) of the protrusion (8) and has a circumferential length L1 along an outer edge of the protrusion (8). In the one cross-section, the second region (RG2) of the protrusion (8) has a height H2 in the height direction (y direction) of the protrusion (8) and has a circumferential length L2 along the outer edge of the protrusion (8). In the membrane carrier, 1.30?(L1/H1+L2/H2)/2 is satisfied.

Abstract: The present invention provides a membrane carrier 3 comprising a flow path 2 and a detection zone 3y, wherein a microstructure is provided at the bottom of the flow path 2 and a mean surface roughness of the microstructure is 0.005 to 10.0 ?m.

Abstract: In one cross-section, a protrusion (8) has a first region (RG1). An outer edge of the first region (RG1) of the protrusion (8) has a concave portion (R). The concave portion (R) is recessed in an X direction by a distance D with respect to a virtual straight line (IL). The virtual straight line (IL) extends in a Y direction. Specifically, the virtual straight line (IL) is in contact with a first position (P1) of an outer edge of the protrusion (8) and passes through a second position (P2).

Abstract: The present invention provides a membrane carrier 3 comprising a flow path 2 and a detection zone 3y, wherein a microstructure is provided at the bottom of the flow path 2 and a mean surface roughness of the microstructure is 0.005 to 10.0 ?m.

Abstract: Provided is a membrane carrier for a test kit for detecting a substance to be detected in a liquid sample, the membrane carrier including: a flow channel having a detection zone, in which the flow channel has a rough structure A having protrusions, at least in the detection zone, a rough microstructure B is formed on a surface of the protrusion, a silane coupling agent is attached to a surface of the rough microstructure B, and a maximum peak height Rp of a roughness curve of a protrusion at which the rough microstructure B is formed, as measured according to JIS B0601: 2013 using a three-dimensional roughness analysis scanning electron microscope, is equal to or more than 0.005 ?m and equal to or less than 10 ?m, and an average length RSm of a roughness curve element is equal to or more than 0.01 ?m and equal to or less than 15 ?m.

Abstract: The present invention provides a membrane carrier 3 comprising a flow path 2 and a detection zone 3y, wherein a microstructure is provided at the bottom of the flow path 2 and a mean surface roughness of the microstructure is 0.005 to 10.0 ?m.