ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,360, issued on March 18, was assigned to JAPAN AVIATION ELECTRONICS INDUSTRY Ltd. (Tokyo).
"Fiber optic gyroscope" was invented by Aritaka Ohno (Tokyo), Takashi Nakahara (Tokyo) and Taro Miyama (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Totally six polarization-maintaining optical fibers having the same beat length are arranged at both ends of a single-mode optical fiber and both ends of a single-mode optical fiber coil, respectively. An angle between a principal axis of polarization in a first polarization-maintaining optical fiber and a plane of polarization of linearly polarized light from a light source is 45 degrees. The optical len...