ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,393,064, issued on Aug. 19, was assigned to Nippon Telegraph and Telephone Corp. (Tokyo).
"Semiconductor optical modulator" was invented by Josuke Ozaki (Musashino, Japan) and Yoshihiro Ogiso (Musashino, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor optical modulator in which a radio frequency (RF) line which is disposed parallel to an optical waveguide and is a differential configuration for transmitting an RF modulation signal, a connecting pad which is formed in the same direction continuously with the RF line, and a termination resistor which has two rectangular resistors for differentially terminating the RF modulation signal...