Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenshi Aihara0
Isao Miyashita0
Date of Patent
August 9, 2011
Patent Application Number
11504786
Date Filed
August 16, 2006
Patent Primary Examiner
Patent abstract
A sheet switch module including a sheet switch (21) having a central contact (32) disposed on a circuit board (33), a circumferential contact (20) disposed circumferentially of the central contact (32), a spring (22) disposed above the central contact (32), and a transparent sheet member (23) configured to cover the spring (22), the sheet switch (21) forming a switching circuit such that the spring (22) provides electrical conduction between the central contact (32) and the circumferential contact (20) when the sheet member is pressed, the sheet member (23) being formed by a light guiding sheet (30) configured to guide light emitted from an LED (34) along an upper surface of the spring (22).
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