发明申请
- 专利标题： FORGERY PREVENTION MEDIUM
- 专利标题（中）： 锻造预防介质
-
申请号： US12768277申请日： 2010-04-27
-
公开(公告)号： US20100271674A1公开(公告)日： 2010-10-28
- 发明人: Tsuyoshi Yamauchi , Mitsuru Kitamura , Makio Kurashige , Tomoki Yasuda
- 申请人： Tsuyoshi Yamauchi , Mitsuru Kitamura , Makio Kurashige , Tomoki Yasuda
- 申请人地址： JP Tokyo
- 专利权人： Dai Nippon Printing Co., Ltd.
- 当前专利权人： Dai Nippon Printing Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2009-107620 20090427
- 主分类号： G03H1/02
- IPC分类号： G03H1/02
摘要：
A forgery prevention medium includes a volume hologram layer on which an interference pattern is recorded after being exposed to an emitted laser beam; a digital watermarking information layer that can be interpreted by emitting a light beam with a predetermined wavelength; and an adherend that has the digital watermarking information layer and is attached to the volume hologram layer, wherein the information layer is of a different color from the volume hologram layer.
公开/授权文献
信息查询
