US Patent Issued to SUMITOMO ELECTRIC INDUSTRIES on July 15 for "Multi-core optical fiber and multi-core optical fiber cable" (Japanese Inventor)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,360,309, issued on July 15, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).

"Multi-core optical fiber and multi-core optical fiber cable" was invented by Tetsuya Hayashi (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The MCF of the present disclosure suppresses XT and leakage loss at 1.565 micro metre or 1.625 micro metre for bidirectional communication. The MCF comprises 12 core units each including a core and a depressed layer, a common cladding, and a resin coating. The units are arranged so that no adjacent relationship is established between cores each having an adjacent relationship with a specific core selected fro...