US Patent Issued to SUMITOMO ELECTRIC INDUSTRIES on May 27 for "Optical fiber cable and optical fiber unit" (Japanese Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,894, issued on May 27, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).

"Optical fiber cable and optical fiber unit" was invented by Fumiaki Sato (Osaka, Japan), Yohei Suzuki (Osaka, Japan) and Yuuki Shimoda (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical fiber cable includes a plurality of optical fibers, a plurality of water-absorbent fibers, and a sheath covering a periphery of the plurality of optical fibers and the plurality of water-absorbent fibers. A ratio of areas of the water-absorbent fibers to an area of an accommodating portion in an inner side of the sheath in a cross section orthogonal to a lon...