| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a keytop member which has a high surface hardness, and in which the edge of the keytop can be maintained sharp. SOLUTION: This is a manufacturing method of a keytop member which has one or two or more keytops and a connecting part for connection at the bottom of the keytops, and comprises an arrangement process (step S102) to arrange a substrate sheet on a first aperture of a mold frame of silicon rubber having a first aperture for forming the connecting part and a second aperture which is inside the first aperture and further recessed and forms the keytop, a resin injection process (step S103) in which resin containing at least acrylate based resin is injected in each aperture of the mold frame, and a hardening process (step S104) to harden the resin. COPYRIGHT: (C)2009,JPO&INPIT
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