The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2003
Filed:
Jun. 27, 2001
Tetsuya Toshine, Tokyo, JP;
Hirotada Ohkawa, Tokyo, JP;
Hiroyuki Ohtaki, Tokyo, JP;
Kenji Ueda, Tokyo, JP;
Fumiko Noujima, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
In the multilayer volume hologram of the invention, the adhesive layer volume hologram and surface protective film are laminated on the application member in this order, and the breaking strength of the hologram layer should be larger than the peel strength between the surface protective film and the volume hologram layer and smaller than the peel strength with which the hologram layer is peeled off the application member and the breaking strength of the surface protective film. This multilayer volume hologram provides a more improved protection for the volume hologram. A portrait replacement or falsification of an information area ensures that the volume hologram layer can break down. Thus, more reliable counterfeit-proofness is achievable.