ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,578, issued on June 23, was assigned to Fujikura Ltd. (Tokyo).

"Optical fiber cable" was invented by Miku Miyata (Sakura, Japan) and Akira Murata (Sakura, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical fiber cable includes: optical fibers each including a glass portion including a core and a cladding surrounding the core, a primary covering layer covering the cladding, and a secondary covering layer covering the primary covering layer; and a sheath accommodating the optical fibers in an internal space. A value of a micro-bend loss characteristic factor FMuBL_GtriangleBeta is 1.2x10-9 or less when represented byFMuBL_GtriangleBeta=FM...