US Patent Issued to Sumitomo Osaka Cement on Nov. 18 for "Optical modulator and optical transmission device using same" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,619, issued on Nov. 18, was assigned to Sumitomo Osaka Cement Co. Ltd. (Tokyo).

"Optical modulator and optical transmission device using same" was invented by Toshio Kataoka (Tokyo) and Shingo Takano (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical modulator that can suppress crosstalk of a modulation signal even in a case where a wiring substrate is disposed to overlap with a modulation substrate is provided. An optical modulator includes a modulation substrate 1 that includes an optical waveguide and a modulation electrode 10 for modulating a light wave which propagates through the optical waveguide, and a wiring substrate 2 provid...