US Patent Issued to Sumitomo Osaka Cement on March 31 for "Optical modulator and optical transmission device using same" (Japanese Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,591,152, issued on March 31, was assigned to Sumitomo Osaka Cement Co. Ltd. (Tokyo).

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

According to the abstract* released by the U.S. Patent & Trademark Office: "It is possible to provide an optical modulator in which a transmission loss from a driver circuit element to a modulation substrate is reduced. An optical modulator includes a modulation substrate (1) that includes an optical waveguide (200) and a modulation electrode (10) for modulating a light wave propagating through the optical waveguide, a driver circuit element (2) that generates a modula...