Radiation imagery chemistry: process – composition – or product th – Holographic process – composition – or product
Reexamination Certificate
2007-11-20
2007-11-20
Angebranndt, Martin (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Holographic process, composition, or product
C430S002000, C430S200000, C359S003000
Reexamination Certificate
active
10300700
ABSTRACT:
Disclosed is a photopolymerizable holographic recording medium for data storage that comprises colloidal metal, and which exhibits a threshold for a second stage polymerization which is substantially insensitive to the light used for both forming holograms and interrogating the medium during servo and/or read events. Also disclosed is a method of preparing said photopolymerizable holographic recording medium. Also disclosed is a method for preparing a colloidal without additives in a viscous medium.
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Cetin Erdem A.
Ingwall Richard T.
Minns Richard A.
Takiff Larry C.
Waldman David A.
Angebranndt Martin
Aprilis, Inc.
Hamilton Brook Smith & Reynolds P.C.
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