ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,605, issued on June 17, was assigned to SEIKO EPSON Corp. (Japan).
"Electronically controlled mechanical timepiece" was invented by Eiichi Hiraya (Shiojiri, Japan) and Eiichi Nagasaka (Minowa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electronically controlled mechanical timepiece includes: a rotor including a rotary shaft, a pinion that is provided on the rotary shaft and to which torque from a mainspring is transmitted, and a rotor magnet attached to the rotary shaft, the rotor being configured to rotate by the torque; a generator that includes a coil and a stator and that is configured to generate power by rotation of the rotor; a m...