ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,542,342, issued on Feb. 3, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).
"Directional coupler" was invented by Daisuke Tokuda (Kyoto, Japan) and Ryangsu Kim (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A directional coupler includes a conductor serving as a primary line disposed in a multilayer body and conductors serving as a plurality of secondary lines that are disposed in the multilayer body and each of which is capable of being electromagnetically coupled to the conductor serving as the primary line. A facing area where the conductor serving as the secondary line and the conductor serving as the secondary line face ea...