Abstract: A recording medium includes a recording layer. The recording layer includes an aliphatic polymer, and a multiphoton absorption compound containing at least one bond selected from the group consisting of a carbon-carbon double bond, a carbon-nitrogen double bond, and a carbon-carbon triple bond, and having a multiphoton absorption characteristic. When the thickness of the recording layer is 100 ?m, the transmittance of the recording layer in the thickness direction with respect to light having a wavelength of 405 nm is greater than or equal to 80%.

Abstract: A trigger-type liquid sprayer includes a vertical supply tube, a reservoir cylinder into which a liquid that has passed through the inside of the vertical supply tube is supplied, and a reservoir plunger disposed inside the reservoir cylinder and configured to move toward one side in an axial direction in response to supply of a liquid into the reservoir cylinder while being biased toward the other side, and the vertical supply tube has a recovery path disposed in a rear end portion of the vertical supply tube, extending downward from the reservoir cylinder, and having a lower end portion closed from below, a communication path extending in a circumferential direction of the vertical supply tube from the recovery path, and a communication opening disposed in front of the recovery path and configured to allow the communication path and an inside of a container body to communicate with each other.

Abstract: A trigger-type liquid sprayer includes a sprayer main body mounted on a container body, and a nozzle member having a spray hole, the sprayer main body includes a vertical supply tube, a trigger mechanism having a trigger portion, a reservoir cylinder into which a liquid that has passed through the inside of the vertical supply tube is supplied in response to rearward movement of the trigger portion, and a reservoir plunger movably disposed inside the reservoir cylinder and configured to move toward one side in response to supply of the liquid into the reservoir cylinder while being biased toward the other side, and a displacement curbing portion is provided between a rear cylinder portion of the reservoir cylinder protruding rearward beyond the vertical supply tube and the vertical supply tube and configured to curb displacement of the rear cylinder portion with respect to the vertical supply tube.

Abstract: A trigger-type liquid ejector including an ejector main body and a nozzle member. The ejector main body includes: a longitudinal supply tube portion; a trigger mechanism including a trigger portion; a reservoir cylinder; a reservoir plunger; and a reservoir valve. The longitudinal supply tube portion includes an outer tube and an inner tube. A recovery passage is provided between the outer tube and the inner tube. The reservoir valve is provided in the inner tube and configured to allow supply of a liquid from the longitudinal supply tube portion into the reservoir cylinder by being elastically deformed in the vertical direction.

Abstract: An application container (1) includes a container main body (2); an inner plug member (20); and an impregnation material (30). The inner plug member (20) includes an impregnation material accommodating portion (21), and a valve body accommodating portion (22) which includes a valve seat (22a) on an impregnation material accommodating portion (21) side and a valve body support portion (22b) on a container main body (2) side and in which a valve body (22c) is disposed so as to be movable between the valve seat (22a) and the valve body support portion (22b). A communication groove (50) which forms a gap between the valve body (22c) and the valve body accommodating portion (22) in a state where the valve body (22c) is supported by the valve body support portion (22b) is formed.

Abstract: In the discharger, a stopper is swingable between a restriction position which comes into contact with or approaches a locking target portion to restrict downward movement of a discharge head and a restriction release position where the restriction and locking target portions are separated to allow downward movement of the discharge head by the stopper being swung rearward from the restriction position, the stopper including the restriction portion, a finger hook outward from a depressing member in a left-right direction, and a contact target portion that comes into contact with the depressing member when the stopper is at the restriction position or when the depressing member rotates downward around a rotation axis where the stopper is at the restriction position, and a restraint protrusion protruding downward is formed at a portion of the depressing member rearward of a contact portion with which the contact target portion comes into contact.

Abstract: An application container (1) includes a container main body (2); an inner plug member (20); and an impregnation material (30). The inner plug member (20) includes an impregnation material accommodating portion (21), and a valve body accommodating portion (22) which includes a valve seat (22a) on an impregnation material accommodating portion (21) side and a valve body support portion (22b) on a container main body (2) side and in which a valve body (22c) is disposed so as to be movable between the valve seat (22a) and the valve body support portion (22b). A communication groove (50) which forms a gap between the valve body (22c) and the valve body accommodating portion (22) in a state where the valve body (22c) is supported by the valve body support portion (22b) is formed.

Abstract: In the discharger, a stopper is swingable between a restriction position which comes into contact with or approaches a locking target portion to restrict downward movement of a discharge head and a restriction release position where the restriction and locking target portions are separated to allow downward movement of the discharge head by the stopper being swung rearward from the restriction position, the stopper including the restriction portion, a finger hook outward from a depressing member in a left-right direction, and a contact target portion that comes into contact with the depressing member when the stopper is at the restriction position or when the depressing member rotates downward around a rotation axis where the stopper is at the restriction position, and a restraint protrusion protruding downward is formed at a portion of the depressing member rearward of a contact portion with which the contact target portion comes into contact.

Abstract: A discharge device including a pump disposed to a container body in which contents are stored and which includes a discharge head provided with a discharge hole formed therein; a mounting cap; a support portion; and a press-down member. By rotating the press-down member, the discharge head is moved downward and the contents are discharged from the discharge hole. The discharge device includes a stopper which is movable between a restricted position where the downward movement of the discharge head is restricted and a non-restricted position where the downward movement of the discharge head is allowed.

Abstract: A discharge device including a pump disposed to a container body in which contents are stored and which includes a discharge head provided with a discharge hole formed therein; a mounting cap; a support portion; and a press-down member. By rotating the press-down member, the discharge head is moved downward and the contents are discharged from the discharge hole. The discharge device includes a stopper which is movable between a restricted position where the downward movement of the discharge head is restricted and a non-restricted position where the downward movement of the discharge head is allowed.