US Patent Issued to SEIKO EPSON on Sept. 2 for "Ttimepiece having a driving wheel including a hole with projections disengageable with a crown shaft" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,405,578, issued on Sept. 2, was assigned to SEIKO EPSON Corp. (Japan).

"Ttimepiece having a driving wheel including a hole with projections disengageable with a crown shaft" was invented by Yoshio Mishima (Matsumoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A timepiece includes an inner rotating ring including a plurality of teeth portions; a driving crown including a head portion and a shaft portion; and a driving wheel including a hole portion engageable with and disengageable from the shaft portion, and configured to mesh with the teeth portions. The hole portion includes a plurality of protruding portions disposed at intervals of an angl...