07034688 is referenced by 14 patents and cites 36 patents.

A method for selectively removing metal from a metallized substrate (e.g., a metallized polymer film) and the formation fo devices thereby are provided. The method involves selectively exposing the metallized surface to a demetallizing (i.e., an oxidizing) chemical solution. The metallized layer can be selectively exposed to the demetallizing solution using a flexographic printing process wherein printing rollers are used to transfer the demetallizing solution to the metallized surface. An identification device including, for example, a holographic, retro-reflective, or other metallized material and a radio-frequency transponder are also provided. The radio-frequency transponder includes an RF chip and an antenna in electrical communication with the chip. The identification device including the holographic image allows both electronic identification through the reading of identification data stored in the chip and optical identification via the holographic image.

Title
Selective metal removal process for metallized retro-reflective and holographic films and radio frequency devices made therewith
Application Number
10/118092
Publication Number
7034688 (B2)
Application Date
April 9, 2002
Publication Date
April 25, 2006
Inventor
Francisco Martinez de Velasco Cortina
Mexico City
MX
Manfred Rietzler
Marktoberdorf
DE
Agent
Baker & McKenzie
Assignee
Neology
CA, US
IPC
G08B 13/14
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