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. 12, 2001
Filed:
Nov. 23, 1999
Shinichi Yamada, Tanashi, JP;
Kenji Miyasaka, Tanashi, JP;
Takayuki Hasumi, Tanashi, JP;
Kazuhide Kinoshita, Iida, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
A self-winding electric power generation watch capable of having an additional function structure besides a time indication and an electric power generation function by virtue of an efficient arrangement of train wheels and motors for watch, electric power generation, and additional function in a watch case. An electric power generation motor,for conducting self-winding electric power generation by means of rotation of a rotary weight,, a watch motor,driven by electric power of the electric power generation motor,, a storage battery,for storing the electric power of the electric power generation motor,, and a chronograph motor,driven by the electric power of the electric power generation motor,are arranged in a watch case so as to surround a center part of the watch. Watch train wheels,and,, an electric power generation train wheel,, and a chronograph train wheel,are disposed in a two-layer form in a region surrounded by the motors.