Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2006-04-11
2006-04-11
Dinh, Tan (Department: 2653)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C428S064400, C430S270130
Reexamination Certificate
active
07027382
ABSTRACT:
An optical information recording medium including a substrate, a light absorbing layer which is located overlying the substrate and in which marks are formed to store information and a light reflection layer located overlying the light absorbing layer including a crystal, wherein the optical information recording medium satisfies the relationship, Lt/4≦Lc≦Lm, wherein Lc represents the average particle diameter of the crystal of the light reflection layer, Lm represents the minimum length of the marks, and Lt represents the thickness of the light reflection layer.
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Narumi Shinya
Yamada Katsuyuki
Cooper & Dunham LLP
Dinh Tan
Ricoh & Company, Ltd.
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