US 7,321,103 B2
Key sheet and manufacturing method for key sheet
Yutaka Nakanishi, Tokyo (Japan); Daisuke Machida, Tamakawa-mura (Japan); and Wataru Araki, Tamakawa-mura (Japan)
Assigned to Polymatech Co., Ltd., Tokyo (Japan)
Filed on Aug. 30, 2006, as Appl. No. 11/512,107.
Claims priority of application No. 2005-254216 (JP), filed on Sep. 01, 2005.
Prior Publication US 2007/0045095 A1, Mar. 01, 2007
Int. Cl. H01H 13/70 (2006.01)
U.S. Cl. 200—512  [200/341; 29/622; 428/139; 379/433] 26 Claims
OG exemplary drawing
 
1. A key sheet, comprising:
a base sheet made of a resin film;
key tops to be arranged on the base sheet; and
printed adhesive layers for the key tops, made of cured bodies which are formed on either of the key tops or the base sheet as printed layers, and brought into contact with the key tops and the base sheet in a softened or molten state.