Glass substrate for magnetic disks and process for its...

Details Glass substrate for magnetic disks and process for its... Glass substrate for magnetic disks and process for its...

2005-03-08

2005-03-08

Resan, Stevan A. (Department: 1773)

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

C428S066700, C428S432000, C428S428000, C428S429000, C428S409000, C428S410000, C428S690000

Reexamination Certificate

active

06863947

ABSTRACT:
A glass substrate for magnetic disks, which is a doughnut-type glass substrate having an inner periphery and an outer periphery, wherein an electrically conductive coat is formed on at least the outer peripheral edge surface.

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patent: 6228429 (2001-05-01), Bluck et al.
patent: 2-301017 (1990-12-01), None
patent: 11-102515 (1999-04-01), None

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