ALEXANDRIA, Va., July 9 -- United States Patent no. 12,354,782, issued on July 8, was assigned to HITACHI ENERGY LTD (Zurich, Switzerland).

"Transformer and method of manufacturing a transformer" was invented by Thomas Gradinger (Aarau Rohr, Switzerland) and Uwe Drofenik (Zurich, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A transformer includes a first winding arranged around an axis, and a second winding arranged around the axis. The second winding includes a litz wire having an end portion located at an axial end position of the second winding and a middle portion located at an axial middle position of the second winding. The litz wire has a first cross section at the end portion and a seco...