Title:
SHIELDING SEAL
Document Type and Number:
Japanese Patent JP3854146
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent an imprint, a signature and a password, etc., from being viewed by someone other than a proper authorized person and to enable the proper authorized person to easily confirm that they are viewed by an illegal means in the case that they are viewed by the illegal means.
SOLUTION: In a shielding seal, line display 4 is executed on a transparent substrate sheet 1 and the line display 4 is displayed at different positions of the respective different substrate sheets 1.
Inventors:
Isamu Tanaka
Application Number:
JP2001393805A
Publication Date:
December 06, 2006
Filing Date:
December 26, 2001
Export Citation:
Assignee:
Kyowa Special Printing Co., Ltd.
International Classes:
G09F3/03; B42D15/00; (IPC1-7): G09F3/03
Domestic Patent References:
| JP2001183983A | ||||
| JP2000326667A | ||||
| JP9279108A | ||||
| JP9197968A | ||||
| JP8150796A | ||||
| JP2133380U |
Attorney, Agent or Firm:
Osamu Shimizu