ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,711, issued on April 7, was assigned to FCNT LLC (Yamato, Japan).
"Antenna device and wireless terminal" was invented by Yohei Koga (Yamato, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An antenna device includes a metal layer for forming an antenna element in a predetermined planar shape and a ground arranged on a lower side of the metal layer. The metal layer forms a first metal forming the planar shape, a notch portion formed at the first metal, and cutting out a part of an edge of the planar shape, a second metal being an electromagnetic field coupling element arranged with a predetermined distance spaced from the first metal inside the ...