Abstract: A particle analyzer includes: an upper liquid space for storing first liquid; a lower liquid space for storing second liquid; a connection hole connecting the liquid spaces; a first inlet hole supplying the first liquid to the upper liquid space; a first outlet hole for exhausting air from the upper liquid space; a second inlet hole supplying the second liquid to the lower liquid space; a second outlet hole for exhausting air from the lower liquid space; first and second electrodes respectively applying a potential to the first liquid in the upper liquid space the second liquid in the lower liquid space; first and second lids respectively arranged at the opening of the first outlet hole and at the opening of the second outlet hole, and both lids being formed of a film allowing air to pass but not allowing liquids to pass.

Abstract: A particle separating device includes at least three liquid chambers adapted to store a liquid therein; at least two liquid passages, each connecting adjacent two of the liquid chambers; an inlet adapted to introduce a liquid in which multiple particles of different sizes are dispersed into one of the liquid chambers; and at least two electrodes disposed inside at least two of the liquid chambers, respectively, the electrodes adapted to apply different electrical potentials to the liquid. The cross-sectional areas of the at least two liquid passages are different from each other.

Abstract: A particle analysis device includes multiple stacked plates joined together; an upper liquid space adapted to store a first liquid; a lower liquid space adapted to store a second liquid; a connection pore connecting the upper liquid space to the lower liquid space; a first hole extending from the top surface to the upper liquid space, the first liquid flowing through the first hole; and a second hole extending from the top surface to the lower liquid space, the second liquid flowing through the second hole. A first electrode and a second electrode that are sheets are pinched between two of the plates. The first electrode applies an electric potential to the first liquid in the upper liquid space through the first hole, whereas the second electrode applies an electric potential to the second liquid in the lower liquid space through the second hole.

Abstract: A method is provided for manufacturing a particle analyzer in which the deterioration of the measurement function is suppressed during the measurement of the particles to be measured. The particle analyzer includes a first storage chamber in which a first liquid is stored, a second storage chamber in which a second liquid containing particles to be analyzed is stored, and a flow path connecting the first storage chamber in fluid communication with the second storage chamber. The method includes a surface modification step of irradiating a surface constituting the flow path with an ultraviolet ray to modify the surface of the flow path.

Abstract: A particle analysis device includes an upper liquid space in which a first liquid is stored, a lower liquid space in which a second liquid is stored, a connection pore connecting the upper liquid space to the lower liquid space, and first to fourth holes. Each of the first to fourth holes has an opening that opens at a top surface of the particle analysis device. The first and second holes extend to the upper liquid space. The third and fourth holes extend to the lower liquid space. A first electrode applies an electric potential to the first liquid in the upper liquid space through the first hole, and a second electrode applies an electric potential to the second liquid in the lower liquid space through the third hole. The opening of at least one of the first hole and the second hole has an area that is greater than the rest of the hole. The opening of at least one of the third hole and the fourth hole has an area that is greater than the rest of the hole.

Abstract: A method is provided for storing a particle analyzer capable of suppressing deterioration of a measurement performance with the lapse of time in a particle analyzer for analyzing particles such as exosomes, pollen, viruses, and bacteria. The particle analyzer has a first storage chamber in which a first liquid is stored, a second storage chamber in which a second liquid containing particles to be analyzed is stored, and a flow path connecting the first storage chamber in fluid communication with the second storage chamber. According to the method, at least a portion of the first storage chamber, the second storage chamber, and the flow path are surface-treated, which includes filling an internal space defined by the first storage chamber, the second storage chamber, and the flow path with a liquid to thereby store the particle analyzer in a state that the surface-treated portion is not in contact with air.

Abstract: The present invention aims at providing a cover structure of a tactile sensor and a tactile sensor that can secure sufficient adhesion between a sensor body and a covering layer without providing an adhesive layer and have no possibility of causing a sensor to make detection error due to the covering layer formed thereon. A cover structure of a tactile sensor according to the present invention includes a sensor body 2 and a covering layer 3 made of elastic body molded on the sensor body 2. The covering layer 3 includes at least two layers of an outer layer 32 disposed as the outermost layer and an inner layer 31 disposed to come in contact with the sensor body 2 and having a higher adhesiveness and a lower hardness than those of the outer layer 32, and is integrally molded with the sensor body 2 by the cast molding.

Abstract: A liquid injection attachment and device are provided. A cylindrical attachment body includes a through-hole, an insertion opening receiving a distal end of a liquid injecting implement inserted thereinto is included on a rear end side of the through-hole, and an outlet discharging liquid from the liquid injecting implement outside of the attachment body is included on a front end side, a plate shaped annular rib projecting inward in the through-hole leaving the outlet is provided at a front end of the attachment body, an annular receiving face is included on the annular rib and faces the rear end side of the through-hole, the annular receiving face receiving a load from the liquid injecting implement in an axial direction during injection, and an annular lip around the outlet is provided where the load received by the annular receiving face of the annular rib acts in an axial direction.

Abstract: A liquid injection attachment formed into a cylindrical body is provided and has, in a rear end portion, an insertion opening for receiving a distal end section of a liquid injecting implement inserted thereinto and a liquid flow outlet in a front end portion. The liquid injection attachment is provided with a lip portion of an annulus shape that bulges on the periphery of the liquid flow outlet, and at least one reduced-diameter portion is formed on an outer cylindrical surface of the cylindrical body.

Abstract: The disclosure provides an attachment structure of a pipette and a fluid injecting attachment, which includes a first cylindrical hole into which a tip end portion having a tapered shape of the pipette is inserted, on one end side of an attachment main body, and a second cylindrical hole that is communicated with the first cylindrical hole and out through which fluid inside the pipette flows, on the other end side, and a step portion between the first cylindrical hole and the second cylindrical hole due to the second cylindrical hole being formed with a smaller diameter than the first cylindrical hole, the tip end portion of the pipette is inserted through the first cylindrical hole, and while the tip end portion is inserted, the second cylindrical hole has a crush allowance farther toward a tip end side than the tip end portion.

Abstract: The present invention aims at providing a cover structure of a tactile sensor and a tactile sensor that can secure sufficient adhesion between a sensor body and a covering layer without providing an adhesive layer and have no possibility of causing a sensor to make detection error due to the covering layer formed thereon. A cover structure of a tactile sensor according to the present invention includes a sensor body 2 and a covering layer 3 made of elastic body molded on the sensor body 2. The covering layer 3 includes at least two layers of an outer layer 32 disposed as the outermost layer and an inner layer 31 disposed to come in contact with the sensor body 2 and having a higher adhesiveness and a lower hardness than those of the outer layer 32, and is integrally molded with the sensor body 2 by the cast molding.

Abstract: An object is to provide a covering material and a covering structure of a robot gripping portion capable of providing proper gripping performance depending on various objects to be gripped so as to grip the objects and is solved by a covering material disposed on a surface of a base material 11 having a function of gripping an object, including an inner layer 121 made up of an elastic body and an outer layer 122 made up of an elastic body coming into contact with the object when gripping the object on a surface of the inner layer 121, the inner layer 121 being made up of the elastic body having a tackiness and having a hardness lower than the outer layer 122, the outer layer 122 having one or more penetrating portions 13 penetrating to the inner layer 121 such that when a stress acts at the time of gripping of the object, a portion of the inner layer 122 enters the penetrating portion 13 or protrudes from the penetrating portion 13 depending on a magnitude of the stress.

Abstract: An object of the present invention is to provide a liquid injection attachment enabling a simple liquid injection into a feed port by merely mounting the attachment onto the distal portion of a pipette or a pipette tip when liquid is injected into the feed port, as well as capable of exhibiting an excellent sealing performance without a risk to deform or damage the pipette or the pipette tip, to thereby suppress leakage of liquid during the liquid injection. The object is achieved by a liquid injection attachment removably mounted on a pipette injecting liquid into a feed port through which liquid is introduced or on a pipette tip fitted to the pipette, the attachment including a tubular attachment body having at its distal end a liquid outlet and having at its proximal end an insertion port into which a distal portion of the pipette or of the pipette tip is inserted; and a gasket formed from a rubber-like elastic body disposed around the liquid outlet of the attachment body.

Abstract: An object is to provide a covering material and a covering structure of a robot gripping portion capable of providing proper gripping performance depending on various objects to be gripped so as to grip the objects and is solved by a covering material disposed on a surface of a base material 11 having a function of gripping an object, including an inner layer 121 made up of an elastic body and an outer layer 122 made up of an elastic body coming into contact with the object when gripping the object on a surface of the inner layer 121, the inner layer 121 being made up of the elastic body having a tackiness and having a hardness lower than the outer layer 122, the outer layer 122 having one or more penetrating portions 13 penetrating to the inner layer 121 such that when a stress acts at the time of gripping of the object, a portion of the inner layer 122 enters the penetrating portion 13 or protrudes from the penetrating portion 13 depending on a magnitude of the stress.