Patent ID: 11929237
Assignee: FUJI CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A plasma head cooling method for a plasma generation device including a plasma head that has a pair of electrodes and is supplied with a gas and ejects a plasma gas in which a part of the gas is plasmatized due to discharging of the pair of electrodes, the plasma head cooling method comprising:
cooling the plasma head by continuing supply of the gas until a temperature of the plasma head is equal to or less than a predetermined value after the discharging of the pair of electrodes is stopped; and
causing a notification device to notify that cooling of the plasma head is abnormal when a predetermined time elapses from stoppage of the discharging of the pair of electrodes during the cooling of the plasma head.