US Patent Issued to Sumitomo Osaka Cement on June 17 for "Optical waveguide device, optical modulator, optical modulation module, and optical transmission apparatus" (Japanese Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,534, issued on June 17, was assigned to Sumitomo Osaka Cement Co. Ltd. (Tokyo).

"Optical waveguide device, optical modulator, optical modulation module, and optical transmission apparatus" was invented by Shotaro Hirata (Tokyo), Masayuki Motoya (Tokyo), Kosuke Okahashi (Tokyo), Yu Kataoka (Tokyo) and Shingo Takano (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided an optical waveguide device including a substrate, an optical waveguide formed on the substrate, and a working electrode that controls a light wave propagating through the optical waveguide, in which the working electrode includes a first base layer made of a first mat...