Title:
電子時計
Document Type and Number:
Japanese Patent JP6848820
Kind Code:
B2
Abstract:
An embodiment of an electronic timepiece includes a cylindrical exterior case, a bezel and a windshield member. In the exterior case, a circuit board is housed. The bezel is formed of a metal material to be ring-shaped, includes an inward flange part that projects from an inner side surface toward a center of the ring-shaped bezel, is arranged on an outer upper side of the exterior case and is electrically connected with the circuit board. The windshield member is formed of a transparent dielectric substance, arranged in the bezel and supported by the inward flange part. The bezel is configured to resonate with a radio wave having a desired frequency by adjustment of at least one of (i) a relative permittivity of the dielectric substance and (ii) an area of an overlap region where the inward flange part and the windshield member overlap each other.
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Inventors:
Uematsu Daisuke
Takashi Sano
Yohei Kawaguchi
Ryumi Ichimura
Yasuda Takumi
Takashi Sano
Yohei Kawaguchi
Ryumi Ichimura
Yasuda Takumi
Application Number:
JP2017215010A
Publication Date:
March 24, 2021
Filing Date:
November 07, 2017
Export Citation:
Assignee:
CASIO COMPUTER CO.,LTD.
International Classes:
G04R60/08; G04G5/00; G04R20/00; H01Q1/44
Domestic Patent References:
| JP2009168656A | ||||
| JP201732506A | ||||
| JP20132978A | ||||
| JP201085312A | ||||
| JP200728150A |
Foreign References:
| US20170212479 |
Attorney, Agent or Firm:
Gwangyang International Patent Office