| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sealing cap of which an imitation visually mistaken for a genuine article is hard to produce. <P>SOLUTION: A lid part 53 of this sealing cap 70 is provided with, in an overlapping state, an additive addition layer 72A added with an additive varying a peripheral synthetic resin into opacity by the irradiation of laser light of a prescribed wavelength, and an additive non-addition layer 72B not added with the additive. The laser light of the prescribed wavelength transmitted through the additive non-addition layer 72B is irradiated to a boundary face 75A of the additive addition layer 72A with the additive non-addition layer 72B to mark an identification mark. Thereby, even if the sealing cap 70 is replicated by taking a mold of the sealing cap 70 by a mold-taking silicone rubber or the like, the identification mark cannot be replicated in the boundary face 75A of the additive addition layer 72A with the additive non-addition layer 72B, and thereby, the imitation such visually mistaken for the genuine article cannot be produced. <P>COPYRIGHT: (C)2013,JPO&INPIT |
