Title:
特にセキュリティー要素のための構造物
Document Type and Number:
Japanese Patent JP3888690
Kind Code:
B2
Abstract:
A structural arrangement having optical diffraction qualities for use as a security element in a value bearing document, such structural arrangement having a plurality of surface regions having at least two subregions having identical relief structures which provide for an optical diffraction effect, the relief structures of adjacent subregions being displaced relative to each other by a fraction of the grating period.
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| WO/2018/184721 | SECURITY ELEMENT AND PRODUCTION METHOD THEREFOR |
| WO/2019/121965 | VALUE DOCUMENT |
Inventors:
Stoke, Wilhelm
Application Number:
JP51224096A
Publication Date:
March 07, 2007
Filing Date:
September 08, 1995
Export Citation:
Assignee:
Leonard Kurtz Game Beehund Company
International Classes:
B42D25/324; B41M3/14; B42D15/00; B42D25/00; G02B5/18
Domestic Patent References:
| JP7218710A | ||||
| JP2072320A | ||||
| JP61138202A |
Foreign References:
| US4568141 |
Attorney, Agent or Firm:
Yanagita Seiji
Go Sakuma
Go Sakuma