ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,566, issued on May 13, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).
"Optical fiber connection structure" was invented by Osamu Shimakawa (Osaka, Japan), Hidehisa Tazawa (Osaka, Japan) and Masato Tanaka (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical fiber connection structure includes: a multi-core fiber; a plurality of single-core fibers; a first lens having a focal length of f1 (mm); and a second lens having a focal length of f2 (mm). A core pitch of the multi-core fiber is P1 (micro metre), a mode field diameter on the first end face of each core is MFD1 (micro metre), a core pitch of multiple single-c...