Title:
SWITCH AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2024/048783
Kind Code:
A1
Abstract:
Provided are: a pressure-sensitive switch with which a change in a characteristic resulting from the switch being used over time can be suppressed; and a method for manufacturing the same. The switch comprises: a base in which a recess is formed; a first electrode disposed on a bottom surface of the recess; a second electrode disposed on the periphery of the recess; a dielectric which is disposed inside the recess, and which is electrically connected to the first electrode; a conductive sheet which is disposed above the dielectric, and which is electrically connected to the second electrode; and an insulative space-retaining member which has a through hole formed at the center thereof, and which retains a space between the dielectric and the conductive sheet on the periphery of the through hole. The dielectric and the conductive sheet are arranged so that a contact surface area between the conductive sheet and the dielectric changes according to a pressing force which presses the conductive sheet in the direction of the dielectric. A depression following the outer edge of the through hole is formed on one surface of the space-retaining member, and the space-retaining member is arranged so that the depression is positioned on the conductive sheet side.
Inventors:
MIYASHITA JYUNJI (JP)
WATANABE SHINSUKE (JP)
NISHIKAWA YUUKI (JP)
SATO SHUNTARO (JP)
FUKASAWA FUMIYA (JP)
MIYAZAWA TAKESHI (JP)
HADA YUKI (JP)
WATANABE SHINSUKE (JP)
NISHIKAWA YUUKI (JP)
SATO SHUNTARO (JP)
FUKASAWA FUMIYA (JP)
MIYAZAWA TAKESHI (JP)
HADA YUKI (JP)
Application Number:
PCT/JP2023/032113
Publication Date:
March 07, 2024
Filing Date:
September 01, 2023
Export Citation:
Assignee:
CITIZEN ELECTRONICS (JP)
CITIZEN WATCH CO LTD (JP)
CITIZEN WATCH CO LTD (JP)
International Classes:
H01H36/00; H01H3/12; H01H11/00; H01H13/00; H01H13/52
Domestic Patent References:
| WO2021019835A1 | 2021-02-04 |
Foreign References:
| JPS59119621A | 1984-07-10 | |||
| JP2020035586A | 2020-03-05 | |||
| JP2020123481A | 2020-08-13 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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