Master information carrier for magnetic transfer

Details Master information carrier for magnetic transfer Master information carrier for magnetic transfer

2005-05-03

2005-05-03

Nakarani, D. S. (Department: 1773)

Stock material or miscellaneous articles

Composite

Of inorganic material

C360S015000, C360S017000

Reexamination Certificate

active

06887593

ABSTRACT:
A master information carrier for magnetic transfer includes a substrate having an irregularity pattern representing information to be transferred to a slave medium and a magnetic layer formed on the irregularity pattern on the substrate. The depth d of the recessed portions of the irregularity pattern and the thickness t of the magnetic layer formed on the recessed portions satisfy formula −0.004≦(t−d)/d≦0.1. At the same time, the magnetic layer formed on the protruding portion of the irregularity pattern and the magnetic layer formed on the recessed portions of the irregularity pattern are connected with each other.

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