The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2025
Filed:
Jul. 20, 2022
Seiko Epson Corporation, Tokyo, JP;
Eiichi Hiraya, Shiojiri, JP;
Eiichi Nagasaka, Minowa, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
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 main plate that contains a magnetic material, that has an opposing surface opposed to the stator, and that is configured to support the rotary shaft of the rotor; wherein in a cross-sectional view viewed from a direction perpendicular to an axial direction of the rotary shaft, a center of the stator along the axial direction is disposed farther toward the opposing surface side than a center of the rotor magnet along the axial direction.