US Patent Issued to Fujikura on March 3 for "Optical fiber manufacturing method and optical fiber manufacturing apparatus" (Japanese Inventor)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,441, issued on March 3, was assigned to Fujikura Ltd. (Tokyo).

"Optical fiber manufacturing method and optical fiber manufacturing apparatus" was invented by Tomoyasu Honda (Suzuka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical fiber manufacturing method includes supplying power to a drawing furnace to cause T/V to decrease to Ttarget/Vtarget along a quadratic function having a value of the Ttarget/Vtarget at an apex with lapse of time, where T is a tension applied to an optical fiber when an optical fiber preform is heated by the drawing furnace and the optical fiber is drawn, V is speed of withdrawing the optical fiber when the o...