Title:
Electronic clock
Document Type and Number:
Japanese Patent JP6136380
Kind Code:
B2
Abstract:
An electronic timepiece includes a light-transmitting dial; a solar panel which is arranged on a side opposite to a display surface of the dial; and a secondary battery to which power generated by the solar panel is charged. The solar panel is divided into seven or more solar cells and the respective solar cells are connected to one another in series. Since seven or more solar cells are connected in series, a lithium ion secondary battery whose electromotive voltage is high can be charged. Accordingly, a need for charging by means of an external battery charger can be eliminated and a wristwatch capable of internally having a device requiring larger current consumption such as a receiving device can be provided.
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Inventors:
Honda Katsuyuki
Application Number:
JP2013045079A
Publication Date:
May 31, 2017
Filing Date:
March 07, 2013
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G04G19/00; G04C10/02
Domestic Patent References:
| JP2012093288A | ||||
| JP2004198112A | ||||
| JP2006275525A | ||||
| JP2012189481A |
Attorney, Agent or Firm:
Intellectual Property Office
Kazuaki Watanabe
Kazuaki Watanabe
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