Master carrier for magnetic transfer, inspecting method...

Dynamic magnetic information storage or retrieval – Record copying – Contact transfer

Reexamination Certificate

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C360S135000, C369S280000, C427S130000

Reexamination Certificate

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11366404

ABSTRACT:
In a master carrier for magnetic transfer which comprises a support that has a transfer-recording pattern arrayed in the track direction thereof in accordance with the information to be transferred to a magnetic recording medium, and a magnetic layer formed on the transfer-recording pattern of the support, the in-plane distance L (mm) between the hill and the valley of the warped master carrier, the vertical-direction distance H (μm) between the two, and the thickness d (mm) of the master carrier are so defined that they satisfy a relation of 0.05≦H·d3/L≦0.6.

REFERENCES:
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patent: 6347016 (2002-02-01), Ishida et al.
patent: 6819511 (2004-11-01), Nishikawa
patent: 6833969 (2004-12-01), Usa et al.
patent: 6850377 (2005-02-01), Hashi et al.
patent: 6858329 (2005-02-01), Hamada et al.
patent: 6887593 (2005-05-01), Sugita et al.
patent: 6909563 (2005-06-01), Nishikawa et al.
patent: 6954317 (2005-10-01), Aoki et al.
patent: 10-40544 (1998-02-01), None
Translation JA 10-40544.

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