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:
Jul. 22, 2014
Filed:
Dec. 07, 2012
Seiko Epson Corporation, Tokyo, JP;
Reiko Nagahama, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
To provide an electronic timepiece with a solar cell whereby a movement can be reduced in size and whereby a calendar function using a calendar wheel can be achieved, an electronic timepiece with a solar cell is provided with: a solar cell, a character plate, a ground plate arranged on a back surface of the solar cell, a ring-shaped date wheel arranged between the character plate and the ground plate, and a circuit board electrically connected to an electrode of the solar cell via a conduction spring. The conduction spring is arranged on the inside of the date wheel when in plan view seen from the character plate side. In comparison to a case where a conduction spring is provided to the outside of a date wheel, the movement can be reduced in size, and because the date wheel can be arranged, a calendar function can be achieved.