ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,596, issued on Dec. 16, was assigned to TDK Corp. (Tokyo).

"Optical modulator" was invented by Kenji Nagase (Hong Kong), Hiroshi Take (Hong Kong), Anthony Reymund Melad Binarao (Hong Kong) and Cheng Bu Heng (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical modulator, including: a substrate; a plurality of electro-optic material layers formed on the substrate; and an electrode formed on the electro-optic material layer; wherein the electro-optic material layer has a patterned RF portion waveguide that applies a modulated signal and a patterned DC portion waveguide that applies a direct current bias signal; and on a section perpendi...