Title:
【発明の名称】反射型ホログラムシート及びその読み取り方法
Document Type and Number:
Japanese Patent JP2694768
Kind Code:
B2
Inventors:
Shigehiko Tahara
Application Number:
JP3922087A
Publication Date:
December 24, 1997
Filing Date:
February 24, 1987
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
G03H1/18; G03H1/22; (IPC1-7): G03H1/18; G03H1/22
Domestic Patent References:
| JP61176968A |
Attorney, Agent or Firm:
Yoshida Katsuhiro