Key sheet, press switch and electronic device provided with...

Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices

Reexamination Certificate

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Details

C361S679460, C361S704000, C361S705000, C200S0050EA, C200S314000, C200S341000

Reexamination Certificate

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07978467

ABSTRACT:
It is an object of the present invention to provide a key sheet and the like which can suppress local elevation of temperature, and effectively diffuse heat loss from electronic circuits. The key sheet includes: a viscoelastic sheet16bhaving a viscoelastic property, and having a first surface and a second surface; a button section16alocated on the side of the first surface of the viscoelastic sheet16b; a thermally-conductive sheet14located along the first surface or the second surface of the viscoelastic sheet16b, the thermally-conductive sheet14having a thermal conductivity equal to a specific value; and a contact section16dprojected from the second surface of the viscoelastic sheet16b, the contact section occupies a position corresponding to the button section16a.

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