Abstract: A hydrogen gas inventory acquisition system configured to acquire an inventory of a hydrogen gas in a plurality of off-site hydrogen stations, includes a log data creation device configured to create log data obtained by recording each parameter data sampled at an individual sampling timing set to each hydrogen station of the plurality of off-site hydrogen stations in combination with identification information of each of the plurality of off-site hydrogen stations from a plurality of parameter data measured by a plurality of meters disposed in the each hydrogen station to calculate an inventory of the hydrogen gas in the each hydrogen station; an inventory calculation device configured to calculate the inventory of the hydrogen gas at an individual calculation timing set to the each hydrogen station by using the log data; and a sorting device configured to acquire inventory data of the hydrogen gas in the each hydrogen station.

Abstract: In electronic equipment which includes a casing, a lid body which is rotatably supported on the casing, a hinge member which is formed by mounting a frame body on one of the lid body and the casing and by making a shaft body projected from the frame body rotatably support the other of the lid body and the casing, and a switch which detects rotation of the lid body, the switch is formed of an individual rotary switch which accommodates a rotary manipulation body having a hollow shaft hollow hole, a movable contact which is integrally rotated with the rotary manipulation body and a stationary contact which is brought into slide contact with the movable contact inside a housing, wherein the shaft body of the hinge member is inserted into the hollow shaft hole of the rotary manipulation body, and the rotation of the lid body is detected in response to the slide contact between the movable contact and the stationary contact which is generated along with rotation of the shaft body.

Abstract: In electronic equipment which includes a casing, a lid body which is rotatably supported on the casing, a hinge member which is formed by mounting a frame body on one of the lid body and the casing and by making a shaft body projected from the frame body rotatably support the other of the lid body and the casing, and a switch which detects rotation of the lid body, the switch is formed of an individual rotary switch which accommodates a rotary manipulation body having a hollow shaft hollow hole, a movable contact which is integrally rotated with the rotary manipulation body and a stationary contact which is brought into slide contact with the movable contact inside a housing, wherein the shaft body of the hinge member is inserted into the hollow shaft hole of the rotary manipulation body, and the rotation of the lid body is detected in response to the slide contact between the movable contact and the stationary contact which is generated along with rotation of the shaft body.