KEY SHEET AND KEY UNIT HAVING THE SAME
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United States of America Patent
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N/A
Issued Date -
Jul 1, 2010
app pub date -
May 8, 2008
filing date -
May 9, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Regarding a key sheet having a plurality of key tops provided at a key base made of a transparent or translucent resin, and a key unit using the key sheet, in order to make the key sheet thinner and thereby make a device using the key sheet, e.g., a cellular phone, thinner, the key sheet comprises a key base made of a transparent or translucent resin; a plurality of key tops provided on said key base; and pressing elements or a pressing element sheet having pressing elements provided at a bottom surface thereof, provided at a bottom surface of said key base, wherein said key base is molded, into a sheet form, of a thermoplastic resin which is solid at a room temperature and obtains adhesive force only in a physical change of hot melting and cooling solidification.
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