Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2004-08-20
2009-06-09
Nguyen, Hoa T (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S275300, C369S286000
Reexamination Certificate
active
07545723
ABSTRACT:
In a holographic recording medium, noise is prevented from being generated by servo light in a recording layer without scarifying recording regions. A holographic recording medium12has a servo layer16formed on a recording layer14on a substrate13via a spacer layer15.The servo layer16reflects the servo light and has one of wavelength selectivity and incident angle selectivity each of which allows object light and reference light to pass through.
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Miura Hideaki
Mizushima Tetsuro
Tsukagoshi Takuya
Yoshinari Jiro
Chu Kim-Kwok
Nguyen Hoa T
Oliff & Berridg,e PLC
TDK Corporation
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