Dynamic information storage or retrieval – Storage medium structure – Specified material
Reexamination Certificate
2011-03-22
2011-03-22
Blouin, Mark (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Specified material
Reexamination Certificate
active
07911933
ABSTRACT:
An optical disk includes a substrate covered with an information recording layer. The information recording layer includes a recording material and a dispersion material dispersed in the recording material. The recording material absorbs recording light for recording information, and then generates heat. As the light refraction index of the recording material changes due to the heat generation, information is recorded on the recording material. The dispersion material has lower absorptance of the recording light and lower thermal conductivity than the recording material, and an external dimension smaller than a diffraction limit of reading light for reading information.
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U.S. Appl. No. 11/887,373, filed Sep. 28, 2007, Muramatsu et al.
Kuroda Kazuo
Muramatsu Eiji
Blouin Mark
Foley & Larnder LLP
Pioneer Corporation
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