Invention Grant
- Patent Title: Optical information medium
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Application No.: US15547454Application Date: 2016-02-02
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Publication No.: US10471758B2Publication Date: 2019-11-12
- Inventor: Satoshi Harada , Kazuhiro Yashiki
- Applicant: TOPPAN PRINTING CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: TOPPAN PRINTING CO., LTD.
- Current Assignee: TOPPAN PRINTING CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Squire Patton Boggs (US) LLP
- Priority: JP2015-019388 20150203; JP2015-097409 20150512
- International Application: PCT/JP2016/000534 WO 20160202
- International Announcement: WO2016/125488 WO 20160811
- Main IPC: B42D25/328
- IPC: B42D25/328 ; G03H1/00 ; G03H1/02 ; B42D25/355 ; B42D25/324 ; D21H21/42 ; G02B5/18 ; G09F3/02 ; B42D25/29 ; B42D25/465 ; G02B5/20 ; G02B5/28 ; G07D7/00

Abstract:
The object of the present invention is to provide an optical information medium having a colored glossy effect which is single- or multi-colored in regions where a reflective layer is present, but colorless in regions where the reflective layer is absent. The optical information medium of the present invention includes a bonding part (receiving layer), at least one image part, and an adhesive layer (protective layer) covering the at least one image part, wherein each of the image part includes a micro-protrusion/depression structure including part having a micro-protrusion/depression structure on at least a part of the surface opposite to the bonding part, a reflective layer, and a mask layer, in the order from the bonding part (receiving layer), the micro-protrusion/depression structure including part is colorless or colored in one or more translucent or opaque color, and at least one of the micro-protrusion/depression structure including part of the image part is colored in one or more translucent or opaque color.
Public/Granted literature
- US20180001691A1 OPTICAL INFORMATION MEDIUM Public/Granted day:2018-01-04
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