US Patent Issued to SUMITOMO ELECTRIC INDUSTRIES, Sumitomo Electric Optifrontier on July 28 for "Optical amplification transmission line" (Japanese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,695,266, issued on July 28, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan) and Sumitomo Electric Optifrontier Co. Ltd. (Yokohama, Japan).

"Optical amplification transmission line" was invented by Shigehiro Nagano (Osaka, Japan), Takemi Hasegawa (Osaka, Japan), Takahiro Suganuma (Osaka, Japan), Hirotaka Sakuma (Osaka, Japan) and Jun Kinugasa (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical amplification transmission line of the present disclosure reduces a connection loss between an EDF located upstream of a signal light path and a SMF located downstream of the path, as compared with a conventional optical ampl...