ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,309, issued on March 3, was assigned to NIKON Corp. (Tokyo).
"Lens barrel and imaging device" was invented by Azusa Muto (Kawasaki, Japan) and Takatoshi Ashizawa (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lens barrel includes first and second yokes each having a length in an optical axis direction, a third yoke that has a length in the optical axis direction and is disposed between the first and second yokes, first and second magnets disposed on the first and second yokes, respectively, a coil that is penetrated by the third yoke and is movable in the optical axis direction by magnetic forces of the first and second magnets, a...