US Patent Issued to SUMITOMO ELECTRIC INDUSTRIES on Aug. 18 for "Multicore optical fiber" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,710,583, issued on Aug. 18, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).

"Multicore optical fiber" was invented by Takemi Hasegawa (Osaka, Japan), Takahiro Suganuma (Osaka, Japan) and Hirotaka Sakuma (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The MCF of the present disclosure suppresses occurrence of structural abnormality such as air bubbles in the vicinity of a boundary between a marker and a cladding. The MCF includes a glass optical fiber including a plurality of cores, a marker, and a cladding, and a resin coating. On a cross section of the MCF, centers of the plurality of cores and a center of the marker cons...