ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,441, issued on May 20, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).
"Fusion splicer and fusion splicing method" was invented by Shintaro Mouri (Osaka, Japan), Soichi Endo (Osaka, Japan) and Akinori Kimura (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The fusion splicer includes a first holding unit, a second holding unit, a screen, a first measurement device, a first driving unit, a second driving unit, and a third driving unit. The screen has a light guide portion through which only test light emitted from one of the plurality of cores of the first optical fiber can pass. The screen is disposed between the end fa...