US Patent Issued to Sumitomo Osaka Cement on May 20 for "Optical modulator and optical transmission apparatus using same" (Japanese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,479, issued on May 20, was assigned to Sumitomo Osaka Cement Co. Ltd. (Tokyo).

"Optical modulator and optical transmission apparatus using same" was invented by Norikazu Miyazaki (Tokyo) and Toru Sugamata (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical modulator includes: an optical modulation element including a plurality of signal electrodes and generating two modulated light beams, each of which is modulated by two sets of electrical signals; a plurality of signal input terminals, each of which inputs an electrical signal; a relay substrate on which a plurality of signal and ground conductor patterns are formed, the relay substra...