Title:
可変容量コンデンサ、位置指示器および入力装置
Document Type and Number:
Japanese Patent JP5569939
Kind Code:
B2
Abstract:
A variable capacitor is provided for use with an electronic circuit board including a first terminal portion and a second terminal portion, to be built in a position indicator. The variable capacitor includes a dielectric having a first surface portion and a second surface portion opposite to the first surface portion, and a conductive elastic member having a board coupling portion and a dielectric contacting portion. The first terminal portion is coupled to the first surface portion, the second terminal portion is coupled to the board coupling portion, and the dielectric contacting portion is disposed separately from the second surface portion so as to face the second surface portion and is configured to be deformed to come in contact with the second surface portion of the dielectric. The variable capacitor is configured such that a contact area between the second surface portion and the dielectric contacting portion is changed in correspondence to a depressing force, which is applied against the dielectric contacting portion in a direction toward the dielectric, thereby changing an electrostatic capacitance of the variable capacitor.
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Inventors:
Yasuyuki Fukushima
Hiroyuki Fujitsuka
Hiroyuki Fujitsuka
Application Number:
JP2010215621A
Publication Date:
August 13, 2014
Filing Date:
September 27, 2010
Export Citation:
Assignee:
WACOM Co., Ltd.
International Classes:
H01G5/013; G06F3/044
Attorney, Agent or Firm:
Masami Sato