ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,824, issued on Nov. 11, was assigned to Fujikura Ltd. (Tokyo).
"Inspection method for optical fiber, inspection device for optical fiber, and method for manufacturing optical fiber-wound bobbin" was invented by Satoshi Matsunaga (Sakura, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An inspection method, for an optical fiber including a bare optical fiber and a light-transmitting coating layer that coats an outer peripheral surface of the bare optical fiber, includes: irradiating, with illumination light having directivity, an outer peripheral surface of a wound body that includes the optical fiber wound in multiple layers around a bobbin; re...