Master carrier for magnetic transfer

Details Master carrier for magnetic transfer Master carrier for magnetic transfer

2005-06-21

2005-06-21

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Record copying

Contact transfer

C360S015000, C360S017000

Reexamination Certificate

active

06909563

ABSTRACT:
A master carrier for magnetic transfer is equipped with a substrate having a land/groove pattern. The land/groove pattern is formed from a magnetic material and corresponds to information that is transferred to a magnetic recording disk. Each land in the land/groove pattern has four round corners whose radius is from 1% through 47% of the width of a data track on the disk.

REFERENCES:
patent: 6347016 (2002-02-01), Ishida et al.
patent: 63-183623 (1988-07-01), None
patent: 10-40544 (1998-02-01), None
patent: 10-269566 (1998-10-01), None
patent: 11-025455 (1999-01-01), None
patent: 11-117800 (1999-04-01), None

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