Abstract: This disclosure discloses an ink cartridge comprises a housing; a reservoir portion disposed so that an end portion on one side in a thickness direction contacts the housing; a detection plate that is supported with respect to the housing at a lower end portion, comes in contact with the other side of the reservoir portion in the thickness direction, and rotates in accordance with an ink volume, thereby executing a display in accordance with the ink volume by that rotational position; and a collapse prevention rib that creates a predetermined gap between an end portion on one side in the thickness direction and a left wall portion of the housing, extends above the detection plate, and causes the upper portion of the reservoir portion to be inserted through the gap, thereby suppressing the displacement of the reservoir portion to the other side in the thickness direction.

Abstract: This disclosure discloses an ink cartridge comprises a housing, a detection plate configured to execute a display in accordance with an ink volume, and a support mechanism comprising a concave portion configured to rotatably support the detection plate, wherein: the detection plate comprises a shaft portion of a shape capable of engaging with a concave portion provided protruding from arm portions; at least one of the arm portions is capable of elastic deformation in which, upon receipt of an external force, changes the position of the shaft portion provided to the one of the arm portions to the extent that the concave portion and the shaft portion do not engage; and generates an elastic force that positions the shaft portion in a location that includes the rotation center of the arm portion when the external force is removed.

Abstract: An inkjet printer printing includes a cartridge mounting portion in which a ink cartridge can be inserted, and a detection portion including a detection switch having a leading end portion and detecting whether the ink cartridge is inserted in the cartridge mounting portion in accordance with a displacement amount of the leading end portion, the leading end portion being penetratingly supported via a first elastic member so as to be displaceable such that the leading end portion protrudes to the outside, and a protruding portion provided on the leading end portion side of the detection switch via a second elastic member so as to be displaceable and protrudes toward the cartridge mounting portion, the second elastic member having an elastic modulus that is smaller than an elastic modulus of the first elastic member and causing the first elastic member to be deformed when the second elastic member is deformed.

Abstract: A composite porous membrane is a composite porous membrane, wherein a porous membrane B including a heat-resistant resin is laminated on the surface of a polypropylene resin of an outermost layer of a porous membrane A composed of at least one layer, wherein at least one of the outermost layers comprises the polypropylene resin. The composite porous membrane satisfies a particular range of peeling strength at the interface between the porous membrane A and the porous membrane B and a particular range of difference between air resistance of the whole composite porous membrane and air resistance of the porous membrane A, provided that the porous membrane A satisfies a particular range of average pore size and porosity.

Abstract: An ink cartridge includes a bag-shaped ink bag that stores ink inside and that includes a spout through which the ink can be drawn out, a substantially box-shaped plastic case that houses the ink bag and that includes at least a first wall portion and a second wall portion arranged facing each other, and a color indicator portion that is disposed on the first wall portion within a range that is set in accordance with a color of the ink stored inside the ink bag, the color indicator portion including at least one recessed portion that is indented in a first direction and indicating information relating to the color of the ink, the first direction being a direction from a side of the first wall portion that faces the second wall portion toward an opposite side of the first wall portion.

Abstract: A composite porous membrane used as a separator for a battery includes a porous membrane A made of a polyolefin resin and a porous membrane B containing a heat-resistant resin laminated thereto, wherein the surface of the porous membrane B on the side that does not face the porous A has a three-dimensional network structure having nodes, and the peeling interface on the side of the porous membrane B formed when the porous membrane A and the porous membrane B are peeled off has a membrane morphology having pores with a pore size of 50 to 500 nm in an amount of at least 100 pores/10 ?m2.

Abstract: An ink cartridge includes an ink bag that is configured to store ink inside, a spout that is provided on the ink bag and that includes a hollow portion that leads from a first opening to a second opening, and a case that houses the ink bag, an end portion of the case on a side of the second opening including at least a first corner portion and a second corner portion, a width in a first direction being smaller than a width in a second direction in the case, an axial line of the spout being, in the second direction, located closer to one end portion of the case on a side having the first corner portion, and the leading end portion of the spout being located inside of the case with respect to the line connecting the first corner portion and the second corner portion.

Abstract: An ink cartridge includes an ink bag that is configured to store ink inside, a spout that is provided on the ink bag and includes a hollow portion that leads from a first opening to a second opening, and a case that houses the ink bag, an end portion of the case on a side of the second opening including at least a first corner portion, a second corner portion, and a first surface portion, a width in a first direction being smaller than a width in a second direction in the case, an axial line of the spout being, in the second direction, located closer to one end portion of the case on a side having the first corner portion, and the leading end portion of the spout being located inside of the case with respect to the line connecting the first corner portion and the second corner portion.

Abstract: An ink cartridge includes an ink bag that is configured to store ink inside, a spout that is provided on the ink bag and that includes a hollow portion leading from a first opening to a second opening, and a case that houses the ink bag and that includes an inclined surface portion and an penetration portion, the inclined surface portion being a surface portion disposed obliquely in relation to an axial direction of the spout, the penetration portion being provided in the inclined surface portion and being opposite the second opening, each of the two layers of the sheets extending substantially parallel to a virtual plane that includes an axial line of the spout and that forms a right angle with the inclined surface portion, and the leading end portion of the spout being positioned inside of the case than is an outer face of the inclined surface portion.

Abstract: An ink cartridge includes an ink bag that is configured to store ink inside, a spout that is provided on the ink bag and that includes a hollow portion that leads from a first opening to a second opening, and a case that houses the ink bag, an end portion of the case on a side of the second opening including at least a first corner portion and a second corner portion, a width in a first direction being smaller than a width in a second direction in the case, an axial line of the spout being, in the second direction, located closer to one end portion of the case on a side having the first corner portion, and at least one of the first corner portion and the second corner portion forming one of an obtuse angle and a curved surface.

Abstract: A composite porous membrane including a porous membrane A formed of a polyolefin-based resin; and a porous membrane B containing a heat-resistant resin and laminated on the porous membrane A, wherein the porous membrane A satisfies formulas (A) to (C), the composite porous membrane satisfies formula (D), and the composite porous membrane satisfies formulas (F) and (F) wherein thickness of porous membrane A<10 ?m formula (A); 0.01 ?m?average pore diameter of porous membrane A?1.0 ?m formula (B); 30% porosity of porous membrane A?70% formula (C); thickness of entire composite porous membrane?13 ?m formula (a); peel strength at interface between porous membrane A and porous membrane B?1.0 N/25 mm formula (E); 20?Y?X?100 formula CO and wherein X is a gas permeation resistance (seconds/100 ccAir) of porous membrane A, and Y is a gas permeation resistance (seconds/100 ccAir) of the composite porous membrane.

Abstract: This disclosure discloses an ink cartridge comprises a housing, a detection plate configured to execute a display in accordance with an ink volume, and a support mechanism comprising a concave portion configured to rotatably support the detection plate, wherein: the detection plate comprises a shaft portion of a shape capable of engaging with a concave portion provided protruding from arm portions; at least one of the arm portions is capable of elastic deformation in which, upon receipt of an external force, changes the position of the shaft portion provided to the one of the arm portions to the extent that the concave portion and the shaft portion do not engage; and generates an elastic force that positions the shaft portion in a location that includes the rotation center of the arm portion when the external force is removed.

Abstract: This disclosure discloses an ink cartridge comprises a housing comprising a longwise direction, a shortwise direction, and a thickness direction, providing an observation opening on a lateral surface on one side of said housing in the longwise direction, a substantially bag-shaped reservoir portion that stores ink in its interior and is disposed within the housing so that the end portion of one side in the thickness direction contacts the housing, and a partition plate that extends so that it is disposed within the opening in the longwise direction, making it possible to visually check the reservoir portion interior from outside the housing.

Abstract: This disclosure discloses an ink cartridge comprises a housing; a reservoir portion disposed so that an end portion on one side in a thickness direction contacts the housing; a detection plate that is supported with respect to the housing at a lower end portion, comes in contact with the other side of the reservoir portion in the thickness direction, and rotates in accordance with an ink volume, thereby executing a display in accordance with the ink volume by that rotational position; and a collapse prevention rib that creates a predetermined gap between an end portion on one side in the thickness direction and a left wall portion of the housing, extends above the detection plate, and causes the upper portion of the reservoir portion to be inserted through the gap, thereby suppressing the displacement of the reservoir portion to the other side in the thickness direction.

Abstract: An inkjet printer printing includes a cartridge mounting portion in which a ink cartridge can be inserted, and a detection portion including a detection switch having a leading end portion and detecting whether the ink cartridge is inserted in the cartridge mounting portion in accordance with a displacement amount of the leading end portion, the leading end portion being penetratingly supported via a first elastic member so as to be displaceable such that the leading end portion protrudes to the outside, and a protruding portion provided on the leading end portion side of the detection switch via a second elastic member so as to be displaceable and protrudes toward the cartridge mounting portion, the second elastic member having an elastic modulus that is smaller than an elastic modulus of the first elastic member and causing the first elastic member to be deformed when the second elastic member is deformed.

Abstract: An ink cartridge includes an ink bag, a spout provided on the ink bag, and a plastic case housing the ink bag and including a first case and second case, the first case including at least a first wall portion and a side wall portion including a first side wall portion and a second side wall portion, the second case including at least a second wall portion, the first side wall portion having a spout opening in a position facing a leading end portion of the spout, the spout opening being an opening that extends from a joint side end portion toward the first wall portion, the joint side end portion being an end portion on a side that contacts with the second wall portion when the first case and the second case are joined together.

Abstract: An ink cartridge includes an ink bag, a plastic case, and an internal component other than the spout, the case housing the ink bag and including a first case and second case, the first case including at least a first wall portion and a side wall portion including a first side wall portion and a second side wall portion, the second case including at least a second wall portion, the first side wall portion including an exposure opening that is an opening that exposes at least a part of the internal component and that extends toward the first wall portion from an end portion on a side that contacts with the second wall portion when the first case and the second case are joined together.

Abstract: An ink cartridge includes a bag-shaped ink bag that stores ink inside and that includes a spout through which the ink can be drawn out, a substantially box-shaped plastic case that houses the ink bag and that includes at least a first wall portion and a second wall portion arranged facing each other, and a color indicator portion that is disposed on the first wall portion within a range that is set in accordance with a color of the ink stored inside the ink bag, the color indicator portion including at least one recessed portion that is indented in a first direction and indicating information relating to the color of the ink, the first direction being a direction from a side of the first wall portion that faces the second wall portion toward an opposite side of the first wall portion.

Abstract: An ink cartridge includes an ink bag that stores ink, a substantially box-shaped case that houses the ink bag, a recessed portion that is disposed in an end portion of the case, and that is indented in a direction further to an inner side of the case than an outer surface of the case such that that the recessed portion is open in at least two directions with respect to the outer surface of the case, and a protruding portion that protrudes from a bottom portion of the recessed portion.