ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,706,364, issued on Aug. 11, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).

"Transmission line including a multilayer body having a signal conductor layer, ground conductor layers and a hollow portion of varying width" was invented by Nobuo Ikemoto (Nagaokakyo, Japan), Noriaki Okuda (Nagaokakyo, Japan), Kosuke Nishio (Nagaokakyo, Japan), Masanori Okamoto (Nagaokakyo, Japan) and Kentarou Kawabe (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a transmission line, a hollow portion overlaps a first ground conductor layer in an up-down direction. In a first orthogonal direction, the hollow portion includes a first portion e...