Abstract: An energy storage module according to an aspect of the present invention includes: a plurality of energy storage devices each including a case; a glass paper sheet provided between the energy storage devices, brought into contact with the case, and mainly composed of a glass fiber; and a holding member holding the plurality of energy storage devices and the glass paper sheet, wherein the glass paper sheet is compressed between the energy storage devices.

Abstract: Disclosed is a current collector including: a conductive layer serving as an underlayer of an active material layer; and a conductive substrate, in which the conductive layer includes a conductive material, an inorganic oxide, a binder, and an inorganic compound thermally decomposed at 100° C. or higher and 800° C. or lower.

Abstract: An object of the present invention is to provide a fuel injection valve that realizes atomization while suppressing spread of a spray. A fuel injection valve includes: a valve body and a valve seat that cooperate to open and close a fuel passage; a swirl imparting chamber that is arranged on a downstream side of an opening and closing portion of the fuel passage by the valve body and the valve seat, and imparts a swirling velocity to fuel; a communication passage arranged on an upstream side of the swirl imparting chamber and connected to the swirl imparting chamber; and fuel injection holes and that are open at a bottom surface of the swirl imparting chamber and injects fuel imparted with the swirling velocity in a swirl passage to an outside, the fuel injection holes and configured such that cross-sectional areas of the fuel injection holes and increase from the inlet to the outlet.

Abstract: An aspect of the present invention is an electrode for an energy storage device including a conductive substrate, an intermediate layer, and an active material layer in this order. In this electrode, the intermediate layer includes a conductive agent, an inorganic oxide, and a binder, and the content of the inorganic oxide in the intermediate layer is 30% by mass or more and 90% by mass or less.

Abstract: An energy storage module according to an aspect of the present invention includes: a plurality of energy storage devices each including a case; a glass paper sheet provided between the energy storage devices, brought into contact with the case, and mainly composed of a glass fiber; and a holding member holding the plurality of energy storage devices and the glass paper sheet, wherein the glass paper sheet is compressed between the energy storage devices.

Abstract: An ink jet recording apparatus includes a recording head having a plurality of nozzles through which an ink composition containing an inorganic pigment is ejected, a nozzle surface having nozzle orifices, and a liquid-repellent film disposed on the nozzle surface; an absorbing member that absorbs the ink composition containing the inorganic pigment from the nozzle orifices and the nozzle surface; and an actuating mechanism including a pressing member that presses the absorbing member and the nozzle surface relative to each other. The actuating mechanism moves at least one of the absorbing member and the recording head relative to the other to perform a cleaning operation in which the ink composition is removed from the nozzle surface with the absorbing member. The absorbing member contains an impregnation liquid having a surface tension of 45 mN/m or less during the cleaning operation.

Abstract: An ink jet recording apparatus includes a recording head having a plurality of nozzles through which an ink composition containing an inorganic pigment is ejected, a nozzle surface having nozzle orifices, and a liquid-repellent film disposed on the nozzle surface; an absorbing member that absorbs the ink composition containing the inorganic pigment from the nozzle orifices and the nozzle surface; and an actuating mechanism including a pressing member that presses the absorbing member and the nozzle surface relative to each other. The actuating mechanism moves at least one of the absorbing member and the recording head relative to the other to perform a cleaning operation in which the ink composition is removed from the nozzle surface with the absorbing member. The absorbing member contains an impregnation liquid having a surface tension of 45 mN/m or less during the cleaning operation.

Abstract: An ink composition that performs recording by being attached on a heated non-absorbent recording medium or a heated low absorbency recording medium, the ink composition including a pigment; a core polymer and a shell polymer that covers at least a portion of the core polymer, and polymer particles in which the glass transition point of the polymer that configures the core polymer is more than 10° C. lower than the glass transition point of the polymer that configures the shell polymer, and in which the polymer that configures the shell polymer includes a polymer having a (meth)acrylate monomer unit and a carboxylic acid monomer unit, and the content of the polymer particles is 3.0 mass % or more with respect to the total amount of the ink composition.

Abstract: An ink composition that performs recording by being attached on a heated non-absorbent recording medium or a heated low absorbency recording medium, the ink composition including a pigment; a core polymer and a shell polymer that covers at least a portion of the core polymer, and polymer particles in which the glass transition point of the polymer that configures the core polymer is more than 10° C. lower than the glass transition point of the polymer that configures the shell polymer, and in which the polymer that configures the shell polymer includes a polymer having a (meth)acrylate monomer unit and a carboxylic acid monomer unit, and the content of the polymer particles is 3.0 mass % or more with respect to the total amount of the ink composition.

Abstract: To provide a radial piston pump capable of displacement control without using an electronic control valve.

Abstract: An ink composition includes a color material, water, and polymer particles, in which the polymer particle has a core-shell structure having a core polymer and a shell polymer, a glass transition temperature of the core polymer is 30° C. or higher, a glass transition temperature of the shell polymer is 50° C. or higher, the glass transition temperature of the shell polymer is more than 10° C. higher than the glass transition temperature of the core polymer, and the core polymer includes an aromatic monomer as a constituent unit and does not substantially include an alkyl polyol having a standard boiling point of 280° C. or higher.

Abstract: An ink composition includes a pigment; polymer particles; and a polar solvent with a boiling point of 150° C. or higher, in which the polymer particles include a core polymer and a shell polymer that covers at least a portion of the core polymer, a glass transition point of the polymer that configures the core polymer is more than 30° C. lower than the glass transition point of the polymer that configures the shell polymer, the polymer that configures the shell polymer includes a polymer having a (meth)acrylate monomer unit and a carboxylic acid monomer unit, the content (solid content conversion) of the polymer particles is 1.0 mass % to 10 mass % with respect to the total amount of the ink composition, and the content of the polar solvent is 10 mass % to 40 mass % of the total amount of the ink composition.

Abstract: An ink composition that performs recording by being attached on a heated non-absorbent recording medium or a heated low absorbency recording medium, the ink composition including a pigment; a core polymer and a shell polymer that covers at least a portion of the core polymer, and polymer particles in which the glass transition point of the polymer that configures the core polymer is more than 10° C. lower than the glass transition point of the polymer that configures the shell polymer, and in which the polymer that configures the shell polymer includes a polymer having a (meth)acrylate monomer unit and a carboxylic acid monomer unit, and the content of the polymer particles is 3.0 mass % or more with respect to the total amount of the ink composition.

Abstract: An ink composition that performs recording by being attached on a heated non-absorbent recording medium or a heated low absorbency recording medium, the ink composition including a pigment; a core polymer and a shell polymer that covers at least a portion of the core polymer, and polymer particles in which the glass transition point of the polymer that configures the core polymer is more than 10° C. lower than the glass transition point of the polymer that configures the shell polymer, and in which the polymer that configures the shell polymer includes a polymer having a (meth)acrylate monomer unit and a carboxylic acid monomer unit, and the content of the polymer particles is 3.0 mass % or more with respect to the total amount of the ink composition.

Abstract: There is provided an ink jet ink composition, which is used in a recording method including ejecting the ink jet ink composition from a recording head of head temperature C (unit: ° C.) onto a recording medium to adhere the ink jet ink composition thereonto and drying the recording medium, on which the ink jet ink composition is adhered, at drying temperature D (unit: ° C.), including water; and a polymer particle, in which the polymer particle has a core polymer containing a polymer of glass transition temperature A (unit: ° C.) and a shell polymer containing a polymer of glass transition temperature B (unit: ° C.) and formed on the surface of the core polymer, and in which the A, B, C, and D satisfy predetermined relations.

Abstract: An ink composition that performs recording by being attached on a heated non-absorbent recording medium or a heated low absorbency recording medium, the ink composition including a pigment; a core polymer and a shell polymer that covers at least a portion of the core polymer, and polymer particles in which the glass transition point of the polymer that configures the core polymer is more than 10° C. lower than the glass transition point of the polymer that configures the shell polymer, and in which the polymer that configures the shell polymer includes a polymer having a (meth)acrylate monomer unit and a carboxylic acid monomer unit, and the content of the polymer particles is 3.0 mass % or more with respect to the total amount of the ink composition.

Abstract: An ink set includes a recording ink and a displacement ink. The recording ink contains a pigment, a resin, water, and a first surfactant and is substantially free of alkyl polyols with a normal boiling point of 280° C. or more. The displacement ink contains water, a second surfactant, an aprotic polar solvent, and an alkyl polyol with a normal boiling point of 280° C. or more. Each of the first surfactant and the second surfactant includes a silicone surfactant and/or a fluorosurfactant. The resin includes a water-soluble resin and/or a resin emulsion. The recording ink has a higher surface tension than that of the displacement ink.

Abstract: An ink composition includes a color material, water, and polymer particles, in which the polymer particle has a core-shell structure having a core polymer and a shell polymer, a glass transition temperature of the core polymer is 30° C. or higher, a glass transition temperature of the shell polymer is 50° C. or higher, the glass transition temperature of the shell polymer is more than 10° C. higher than the glass transition temperature of the core polymer, and the core polymer includes an aromatic monomer as a constituent unit and does not substantially include an alkyl polyol having a standard boiling point of 280° C. or higher.

Abstract: An ink composition includes a pigment; polymer particles; and a polar solvent with a boiling point of 150° C. or higher, in which the polymer particles include a core polymer and a shell polymer that covers at least a portion of the core polymer, a glass transition point of the polymer that configures the core polymer is more than 30° C. lower than the glass transition point of the polymer that configures the shell polymer, the polymer that configures the shell polymer includes a polymer having a (meth)acrylate monomer unit and a carboxylic acid monomer unit, the content (solid content conversion) of the polymer particles is 1.0 mass % to 10 mass % with respect to the total amount of the ink composition, and the content of the polar solvent is 10 mass % to 40 mass % of the total amount of the ink composition.

Abstract: Disclosed herein is an ink composition, including: a color material; water; and a polymer particle, in which the polymer particle has a core-shell structure including a core polymer and a shell polymer, in which the polymer particle has an average particle diameter of 10 nm to 80 nm, in which the core polymer has a glass transition temperature of lower than 60° C. and the shell polymer has a glass transition temperature of higher than or equal to 60° C., and in which the core polymer includes an aromatic monomer having at least a vinyl group as a constitutional unit.