发明授权
- 专利标题： Forgery prevention medium with a volume hologram layer and information layer in different colors
- 专利标题（中）： 具有体积全息图层和不同颜色的信息层的防伪介质
-
申请号： US12768277申请日： 2010-04-27
-
公开(公告)号： US08456722B2公开(公告)日： 2013-06-04
- 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
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2009-107620 20090427
- 主分类号： G03H1/00
- IPC分类号： G03H1/00
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
- US20100271674A1 FORGERY PREVENTION MEDIUM 公开/授权日：2010-10-28
信息查询
