Title:
アンテナ内蔵式電子時計
Document Type and Number:
Japanese Patent JP5712814
Kind Code:
B2
Abstract:
An electronic timepiece with internal antenna maintains sufficiently high reception performance of circularly polarized waves even when having a metal external case. A drive unit of the timepiece counts a time inside the external case. An antenna has a tubular-shaped side part, a bottom part that covers one of two openings of the side part, and a top part that contacts an inside surface of the side part inside the external case. The bottom part is a back cover of the external case, and the top part has a slot part.
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Inventors:
Teruhiko Fujisawa
Application Number:
JP2011144253A
Publication Date:
May 07, 2015
Filing Date:
June 29, 2011
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G04G21/04; G04R60/12; G04R20/00
Domestic Patent References:
| JP8213819A | ||||
| JP8274526A | ||||
| JP9127267A | ||||
| JP53037523Y1 |
Foreign References:
| US20070091004 | ||||
| WO1993009576A1 |
Attorney, Agent or Firm:
Akira Obayashi
Yashiro Hitoshi
Taro Takahashi
Yashiro Hitoshi
Taro Takahashi
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