Title:
識別媒体、識別方法および識別装置
Document Type and Number:
Japanese Patent JP4866129
Kind Code:
B2
Abstract:
An object of the present invention is to provide a discrimination medium which has high discrimination ability, and which is more difficult to counterfeit than conventional discrimination mediums. A discrimination medium 100 comprises: a cholesteric liquid crystal layer 102; and a liquid crystal layer 103 acting as a half-wave plate and provided on the cholesteric liquid crystal layer 102 in a predetermined pattern.
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Inventors:
Shuichi Hoshino
Takeo Itsuo
Ryo Nishimura
Goro Susaki
Takeo Itsuo
Ryo Nishimura
Goro Susaki
Application Number:
JP2006101907A
Publication Date:
February 01, 2012
Filing Date:
April 03, 2006
Export Citation:
Assignee:
Nippon Jojo Co., Ltd.
jx Nikko Nisseki Energy Co., Ltd.
jx Nikko Nisseki Energy Co., Ltd.
International Classes:
G03H1/18; B42D15/10; G02B5/30
Domestic Patent References:
| JP2003186377A | ||||
| JP2004338257A |
Attorney, Agent or Firm:
Suenari Mikio