US Patent Issued to NTT on July 7 for "Optical fiber" (Japanese Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,931, issued on July 7, was assigned to NTT Inc. (Tokyo).

"Optical fiber" was invented by Takashi Matsui (Musashino, Japan), Kazuhide Nakajima (Musashino, Japan), Nobutomo Hanzawa (Musashino, Japan) and Yuto Sagae (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An object of the present disclosure is to provide an optical fiber having a simple structure, as well as attaining removal of loss components generated in an electric field part oozing out to a core-clad interface or a clad region and reduction in scattering loss generated from an interface with the clad region.The present disclosure relates to an optical fiber including a core...