ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,857, issued on Jan. 20, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).
"Optical fiber ribbon" was invented by Noriaki Iwaguchi (Osaka, Japan), Takashi Fujii (Osaka, Japan) and Fumiaki Sato (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical fiber ribbon includes optical fibers arranged in parallel in a direction orthogonal to a longitudinal direction of the optical fibers, and a collective coating layer covering an outer periphery of each of the plurality of optical fibers. The collective coating layer includes a connected portion at which the optical fibers adjacent to each other are connected. An outer diamet...