Patent 12009131 was granted and assigned to IHI Corporation on June, 2024 by the United States Patent and Trademark Office.
A coil device includes a coil part having a coil, a case accommodating the coil part, a coolant accommodated in the case, and a fluid volume adjusting part for supplying the coolant to the case or discharging the coolant from the case. The coil part floats on the coolant.