Title:
ELECTRONIC TIMEPIECE WITH SOLAR CELL
Document Type and Number:
WIPO Patent Application WO/2004/066042
Kind Code:
A1
Abstract:
An electronic timepiece with a solar cell comprising a timepiece movement, a timepiece case for housing the movement, a casing ring for housing and holding the movement in the case, a solar cell, and a dial, wherein the solar cell is disposed almost vertically to a solar cell positioning part provided in the casing ring, and the solar cell has a slender strip shape formed on a flexible substrate. Consequently, a solar cell need not be disposed in a timepiece movement, and it is only necessary to change a casing ring as an external component even when a panel cover diameter is changed, allowing a common use of a timepiece movement. A solar cell can be coiled to match the size of a casing ring when it is incorporated in the casing ring, therefore a common solar cell can be used despite a change in the panel cover diameter of the timepiece.
Inventors:
OSA TAKASHI (JP)
MURAKAMI TOMOMI (JP)
FUJITA HITOSHI (JP)
MURAKAMI TOMOMI (JP)
FUJITA HITOSHI (JP)
Application Number:
PCT/JP2003/015919
Publication Date:
August 05, 2004
Filing Date:
December 12, 2003
Export Citation:
Assignee:
CITIZEN WATCH CO LTD (JP)
OSA TAKASHI (JP)
MURAKAMI TOMOMI (JP)
FUJITA HITOSHI (JP)
OSA TAKASHI (JP)
MURAKAMI TOMOMI (JP)
FUJITA HITOSHI (JP)
International Classes:
G04C10/02; (IPC1-7): G04G19/00; G04C10/02; G04B37/18; G04B37/05
Foreign References:
| JPS59120983A | 1984-07-12 | |||
| JPS59152480U | 1984-10-12 | |||
| JPS52109378A | 1977-09-13 | |||
| JPH10177077A | 1998-06-30 | |||
| JPS5886592U | 1983-06-11 | |||
| JPS5826696U | 1983-02-21 | |||
| JPS60146887U | 1985-09-30 | |||
| JPS6216491U | 1987-01-31 | |||
| JP2003121567A | 2003-04-23 |
Other References:
See also references of EP 1586963A4
None
None
Attorney, Agent or Firm:
Watanabe, Kihei (26 Kanda Suda-cho 1-chom, Chiyoda-ku Tokyo, JP)
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