Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2006-04-26
2010-12-07
Young, Wayne R (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S053280, C369S275400, C369S286000, C369S288000
Reexamination Certificate
active
07848205
ABSTRACT:
An information-recording medium having a substrate and a recording part formed on the substrate allowing three-dimensional formation of recording pits, the recording part, comprising multiple recording layers, in which the recording pits are formed with a converged recording light at a wavelength of λ2 and reproduced with a converged reproducing light with a wavelength λ1 shorter than the wavelength λ2, and intermediate layers alternately laminated between the recording layers, wherein the reflectance at the recording light wavelength of λ2 in the unrecorded region is smaller than the reflectance at the reproducing light wavelength of λ1 in the unrecorded regions of the recording layers.
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Itoh Tatsuo
Shiono Teruhiro
Bernardi Brenda
Panasonic Corporation
Wenderoth , Lind & Ponack, L.L.P.
Young Wayne R
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