Abstract: A quality determination device is applied to a component mounter including a pallet and a suction nozzle, and includes a first determination section. The pallet includes supply units on which a solder ball group to be supplied to a target region, that is at least a part of a mounting area of a component to be mounted on a board is mounted. The solder ball group being disposed in accordance with electrode positions of the component. The suction nozzle picks up and holds a target object that is a supply unit or a solder ball group mounted on the supply unit, and supplies the target object to the target region of a board. The first determination section determines quality of the solder ball group mounted on at least one supply unit among the multiple supply units arranged in the pallet before the suction nozzle picks up the target object.

Abstract: A cell culture apparatus is provided, including a storage tank including one or a plurality of cell culture units, in which the cell culture unit includes a culture chamber having an inner surface-side space in which a culture solution is stored, a permeable membrane having a first surface to which cells are adherable and a second surface opposite to the first surface, the first surface facing the inner surface-side space, a culture solution storage chamber that stores the culture solution, a culture solution introduction flow path that introduces the culture solution in the culture solution storage chamber to the inner surface-side space, and a culture solution discharge flow path that sends, to the culture solution storage chamber, the culture solution which permeates through the membrane from the inner surface-side space and flows into an outer surface-side space that the second surface of the membrane faces.

Abstract: A cell culture apparatus, includes a connected culture container including n number of units disposed in parallel along a second direction that is a different direction from a first direction where each of the n number of the units is constituted of m number of culture chambers and one or more communication-channels, the m number of the culture chambers each having a cell-holding portion that holds seeded cells, the m number of the culture chambers storing liquid culture media, the m number of the culture chambers being disposed in parallel along the first direction, the communication-channels communicating the m number of the culture chambers with each other; and a plurality of pneumatic pipes communicating same-row-disposed culture chambers that are disposed on a same row along the second direction with each other in the connected culture container.

Abstract: A cell culture device includes a storage tank having one or a plurality of cell culture units. The cell culture units includes a culture liquid main chamber having a circulation space through which a culture liquid of cells circulates, a permeable membrane having one surface to which the cells are able to adhere, said one face facing the circulation space, a first culture liquid storage chamber having an airtight structure in which the culture liquid is to be stored, a second culture liquid storage chamber in which the culture liquid is to be stored, a culture liquid introduction flow path that introduces the culture liquid from the first culture liquid storage chamber into the circulation space of the culture liquid main chamber, and a culture liquid lead-out flow path that introduces the culture liquid from the circulation space into the second culture liquid storage chamber.

Abstract: A cell culture device includes a storage tank having one or a plurality of cell culture units. Each of the cell culture units includes a first liquid storage chamber having an airtight structure in which a liquid is to be stored, a second liquid storage chamber in which the liquid is to be stored, a culture liquid storage chamber having a culture liquid storage space in which a culture liquid of cells is to be stored, a permeable membrane having one surface to which the cells are able to adhere, said one face facing the culture liquid storage space, and a liquid lead-out flow path that introducing the liquid from a space on the other surface side of the membrane into the second liquid storage chamber, the first liquid storage chamber being set as a supply source of the liquid.

Abstract: A method for producing a chip for cell culture that enables production of a microchannel structure, enables mass production at low cost, and also has functions suited to cell culture. The method includes forming a photosensitive adhesive layer by applying a photosensitive adhesive to a first substrate having transparency, thus obtaining a 3D printing substrate, 3D printing steps that employ vat photopolymerization, forming a first adhesive layer by depositing a first adhesive on a second substrate having transparency, thus obtaining a cell culture channel top plate, and bonding the cell culture channel and the cell culture channel top plate together via the first adhesive layer, and then performing thermocompression bonding to obtain a microchannel structural body having a hollow structure, wherein the first adhesive is a polyester-based resin having a Tg value of 5° C. or higher.

Abstract: Provided are a photodegradable hydrogel in which cells can be embedded in the photodegradable gel without causing cytotoxicity when the cells are embedded in the photodegradable gel by allowing the cells to coexist at the time of preparation of the photodegradable gel, and which contains a protein as one of the main components; a culture device using the same; a method for forming tissue; and a method for separating cells. A photodegradable hydrogel is obtained by condensation of an alkyne group contained in a cyclooctyne ring or an azacyclooctyne ring of the following compound A with an azido group of the following compound B.

Abstract: A cell culture apparatus is provided, including a storage tank including one or a plurality of cell culture units, in which the cell culture unit includes a culture chamber having an inner surface-side space in which a culture solution is stored, a permeable membrane having a first surface to which cells are adherable and a second surface opposite to the first surface, the first surface facing the inner surface-side space, a culture solution storage chamber that stores the culture solution, a culture solution introduction flow path that introduces the culture solution in the culture solution storage chamber to the inner surface-side space, and a culture solution discharge flow path that sends, to the culture solution storage chamber, the culture solution which permeates through the membrane from the inner surface-side space and flows into an outer surface-side space that the second surface of the membrane faces.

Abstract: A cell culture device includes a storage tank having one or a plurality of cell culture units. The cell culture units includes a culture liquid main chamber having a circulation space through which a culture liquid of cells circulates, a permeable membrane having one surface to which the cells are able to adhere, said one face facing the circulation space, a first culture liquid storage chamber having an airtight structure in which the culture liquid is to be stored, a second culture liquid storage chamber in which the culture liquid is to be stored, a culture liquid introduction flow path that introduces the culture liquid from the first culture liquid storage chamber into the circulation space of the culture liquid main chamber, and a culture liquid lead-out flow path that introduces the culture liquid from the circulation space into the second culture liquid storage chamber.

Abstract: A cell culture device includes a storage tank having one or a plurality of cell culture units. Each of the cell culture units includes a first liquid storage chamber having an airtight structure in which a liquid is to be stored, a second liquid storage chamber in which the liquid is to be stored, a culture liquid storage chamber having a culture liquid storage space in which a culture liquid of cells is to be stored, a permeable membrane having one surface to which the cells are able to adhere, said one face facing the culture liquid storage space, and a liquid lead-out flow path that introducing the liquid from a space on the other surface side of the membrane into the second liquid storage chamber, the first liquid storage chamber being set as a supply source of the liquid.

Abstract: A method for producing a chip for cell culture that enables production of a microchannel structure, enables mass production at low cost, and also has functions suited to cell culture. The method includes forming a photosensitive adhesive layer by applying a photosensitive adhesive to a first substrate having transparency, thus obtaining a 3D printing substrate, 3D printing steps that employ vat photopolymerization, forming a first adhesive layer by depositing a first adhesive on a second substrate having transparency, thus obtaining a cell culture channel top plate, and bonding the cell culture channel and the cell culture channel top plate together via the first adhesive layer, and then performing thermocompression bonding to obtain a microchannel structural body having a hollow structure, wherein the first adhesive is a polyester-based resin having a Tg value of 5° C. or higher.

Abstract: A cell culture apparatus, includes a connected culture container including n number of units disposed in parallel along a second direction that is a different direction from a first direction where each of the n number of the units is constituted of m number of culture chambers and one or more communication-channels, the m number of the culture chambers each having a cell-holding portion that holds seeded cells, the m number of the culture chambers storing liquid culture media, the m number of the culture chambers being disposed in parallel along the first direction, the communication-channels communicating the m number of the culture chambers with each other; and a plurality of pneumatic pipes communicating same-row-disposed culture chambers that are disposed on a same row along the second direction with each other in the connected culture container.

Abstract: Provided are a photodegradable hydrogel in which cells can be embedded in the photodegradable gel without causing cytotoxicity when the cells are embedded in the photodegradable gel by allowing the cells to coexist at the time of preparation of the photodegradable gel, and which contains a protein as one of the main components; a culture device using the same; a method for forming tissue; and a method for separating cells. A photodegradable hydrogel is obtained by condensation of an alkyne group contained in a cyclooctyne ring or an azacyclooctyne ring of the following compound A with an azido group of the following compound B.

Abstract: The present invention provides a photodegradable cross-linking agent capable of manufacturing a photodegradable gel, which has appropriate moisture content and water solubility as a cell carrier and has strength that makes it possible to construct a complicated three-dimensional microstructure. The photodegradable cross-linking agent of the present invention includes a main chain 2 which is composed of branched polyethylene glycol having three or more branched chains and a photodegradable benzyl group 3 which is disposed on the terminus of the branched chains, in which the benzyl group has an active ester group 4, which is reactive with an amino group or a hydroxyl group, and one or more nitro groups in a benzene ring.

Abstract: The present invention provides a photodegradable cross-linking agent capable of manufacturing a photodegradable gel, which has appropriate moisture content and water solubility as a cell carrier and has strength that makes it possible to construct a complicated three-dimensional microstructure. The photodegradable cross-linking agent of the present invention includes a main chain 2 which is composed of branched polyethylene glycol having three or more branched chains and a photodegradable benzyl group 3 which is disposed on the terminus of the branched chains, in which the benzyl group has an active ester group 4, which is reactive with an amino group or a hydroxyl group, and one or more nitro groups in a benzene ring.

Abstract: A method and apparatus for efficiently immobilizing cells on a substrate without damaging the cells, and a cell-immobilized substrate is provided. Cells 4a contacting a substrate 2 is irradiated with light 10 which includes light having a wavelength of 330 to 410 nm, thereby adhering cells 4a to the substrate 2.

Abstract: To provide an interrupt control device for avoiding an unwanted transition to a low power mode without a decrease in software quality. The interrupt control device receives an interrupt, and also receives a switching instruction to switch a target device from a normal power mode to the low power mode, the switching instruction being included in a transition program showing a transition procedure from the normal to low power mode. The interrupt control device manages an interrupt state, by switching between a disable state of disabling any interrupt, a first enable state of enabling an interrupt in a period of the transition procedure, and a second enable state of enabling an interrupt in a period other than the period of the transition procedure. If the interrupt is received in the first enable state, the interrupt control device abandons the switching instruction when subsequently receiving the switching instruction.

Abstract: A polyelectrolyte solution as a disperse phase is fed into one of the chambers which are partitioned by a plate having a plurality of narrow holes (microchannels), a continuous phase is fed into the other chamber, and pressure is applied to the disperse phase forcing it through the holes into the continuous phase so as to prepare an emulsion. This emulsion is demulsified, and at the same time the disperse phase is brought into contact with a polyelectrolyte solution having a reverse electric charge to the disperse phase or a polyvalent ion solution, and a gel layer is formed around the spherical disperse phase by a polyelectrolyte reaction. Thereby, a double-structured capsule is obtained, in which the outside is insoluble gel and the inside is a polyelectrolyte solution to which a cell has been added.

Abstract: A fuel transfer pipe and a cylinder head of an engine in which a fuel injection device is restricted from being separated from each other by a restricting member. A pressing member is interposed between the fuel transfer pipe and the cylinder head to receive a restricting force of the restricting member presses the fuel transfer pipe to a side opposing the cylinder head and presses the fuel injection device to a side of the cylinder head by a reaction force against the restricting force.

Abstract: A fuel transfer pipe and a cylinder head of an engine in which a fuel injection device is restricted from being separated from each other by a restricting member. A pressing member is interposed between the fuel transfer pipe and the cylinder head to receive a restricting force of the restricting member presses the fuel transfer pipe to a side opposing the cylinder head and presses the fuel injection device to a side of the cylinder head by a reaction force against the restricting force.