US Patent Issued to SEIKO EPSON on June 30 for "Mechanical timepiece" (Japanese Inventor)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,780, issued on June 30, was assigned to SEIKO EPSON Corp. (Japan).

"Mechanical timepiece" was invented by Teruhiko Fujisawa (Shiojiri, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mechanical timepiece includes a spring, a balance, an oscillation circuit, a speed governing mechanism configured to include a permanent magnet and a coil, one of the permanent magnet and the coil being held by the balance, an external magnetic field detection mechanism configured to detect an external magnetic field, a vibration detection mechanism configured to detect vibration of the balance and output a vibration detection signal, a speed governing control me...