Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2003-05-07
2008-12-02
Korzuch, William (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C428S064100, C428S064200, C428S064400
Reexamination Certificate
active
07460463
ABSTRACT:
A transfer layer on a surface of a mold has a thickness distribution along the radius direction that the layer is thick in an inner round portion but is gradually thinner toward an outer round portion. An adhesive layer is formed between a surface of a signal substrate which bears a signal recording film and the mold which seats the transfer layer. The adhesive layer has a thickness distribution that the layer is thin in an inner round portion but is gradually thicker toward an outer round portion. Since the thickness distributions along the radius direction of the transfer layer and the adhesive layer are opposite to each other, the thickness distribution of an isolation layer which comprises the two layers is uniform.
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European Search Report corresponding to application No. EP 03-01-0498 dated Sep. 6, 2004.
Hayashi Kazuhiro
Higashimaru Kazuhiro
Hisada Kazuya
Ohno Eiji
Haley Joseph
Korzuch William
Panasonic Corporation
RatnerPrestia
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