ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,412, issued on Oct. 28, was assigned to FURUKAWA ELECTRIC Co. LTD. (Tokyo).
"Multicore fiber" was invented by Masanori Takahashi (Tokyo), Koichi Maeda (Tokyo), Ryuichi Sugizaki (Tokyo) and Yoshihiro Arashitani (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multicore fiber includes: a plurality of first glass regions each including: a core portion; and a first cladding portion having a lower refractive index than a maximum refractive index of the core portion; and a cladding region formed on outer peripheries of the plurality of first glass regions, wherein compressive stress is applied to the plurality of first glass regions."
The patent w...