ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,988, issued on Oct. 14, was assigned to Fujikura Ltd. (Tokyo).
"Ferrule and ferrule structure" was invented by Hirotaka Asada (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ferrule includes a main body including inner and outer walls and a connection end surface at which a tip of an optical fiber is to be disposed. The inner wall has fiber holes. The ferrule includes an adhesive filling part disposed in the main body on an opposite side from the connection end surface with respect to the inner wall, an upper opening that opens from the outer wall to the adhesive filling part, and a lower opening that opens from the outer wall to the ...