A storage device configured to store at least one press-formed product is provided. The storage device includes at least one arrangement portion and a placement portion. The arrangement portion is a seating including a first groove and a second groove. The first groove and the second groove are formed to intersect with each other in an X shape in plan view. The placement portion includes at least one first plate including at least one first slit and at least one second plate including at least one second slit. The first slit and the second slit cause the first plate and the second plate to be engaged with each other. The first plate and the second plate stand on the arrangement portion in a state in which the first plate is fitted in the first groove and the second plate is fitted in the second groove.

A can lid manufacturing device, a can lid manufacturing method, a can lid, and a can container containing contents that improve openability and pressure resistance of the can lid with a simple configuration. A can lid manufacturing device is configured to manufacture a can lid, the can lid manufacturing device including: a rolling direction detection unit including a rotation drive unit configured to rotate the can lid and a reflected light detection unit; and a control unit. The reflected light detection unit includes a light-emitting unit and a light-receiving unit, and the control unit is configured to detect the rolling direction of the can lid based on change information on a change in light intensity of the reflected light reflected by the can lid to rotate, the information being obtained by the rolling direction detection unit.

A can lid manufacturing device, a can lid manufacturing method, a can lid, and a can container containing contents that improve openability and pressure resistance of the can lid with a simple configuration. A can lid manufacturing device is configured to manufacture a can lid, the can lid manufacturing device including: a rolling direction detection unit including a rotation drive unit configured to rotate the can lid and a reflected light detection unit; and a control unit. The reflected light detection unit includes a light-emitting unit and a light-receiving unit, and the control unit is configured to detect the rolling direction of the can lid based on change information on a change in light intensity of the reflected light reflected by the can lid to rotate, the information being obtained by the rolling direction detection unit.