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. 24, 2003
Filed:
May. 30, 2000
Kenichi Nakajima, Chiba, JP;
Takayuki Satodate, Chiba, JP;
Akihiro Matouge, Chiba, JP;
Akihiko Inada, Chiba, JP;
Mitsuru Ishii, Chiba, JP;
Yoshio Koyama, Chiba, JP;
Shigeo Suzuki, Chiba, JP;
Masayuki Kawata, Chiba, JP;
Yuko Sasaki, Chiba, JP;
Eriko Takakuwa, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
An electronic timepiece has a wheel train mounted for undergoing rotation and a transmission wheel for undergoing rotation in accordance with rotation of the wheel train. A contact point spring is connected to the transmission wheel for rotation therewith. The contact point spring extends substantially linearly through a rotational center of the transmission wheel. First and second detection patterns contact the contact point spring during rotation of the transmission wheel to generate a rotational position detecting signal corresponding to a rotational position of the transmission wheel. The first and second detection patterns are disposed at an angle of substantially 180 degree relative to the rotational center of the transmission wheel.