Invention Grant
- Patent Title: Multilayered volume hologram structure and label for making multilayered volume hologram structure
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Application No.: US10279756Application Date: 2002-10-24
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Publication No.: US06815027B2Publication Date: 2004-11-09
- Inventor: Akio Morii , Satoru Hamada , Hiroyuki Ohtaki , Kenji Ueda , Shingo Nishikawa
- Applicant: Akio Morii , Satoru Hamada , Hiroyuki Ohtaki , Kenji Ueda , Shingo Nishikawa
- Priority: JP8-248022 19960919; JP8-251986 19960924; JP8-251987 19960924; JP8-251988 19960924; JP8-252107 19960924; JP8-283709 19961025; JP8-286752 19961029; JP8-314613 19961126
- Main IPC: B32B502
- IPC: B32B502

Abstract:
A multilayered volume hologram structure of the invention comprises a substrate 2 for a certificate or the like, and an adhesive layer 5, a volume hologram layer 5 and a surface protective film 7 laminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layer 5 and surface protective layer 5 is forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.
Public/Granted literature
- US20030129344A1 Multilayered volume hologram structure and label for making multilayered volume hologram structure Public/Granted day:2003-07-10
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