POLISHING METHOD FOR GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM

Title:

POLISHING METHOD FOR GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM

Document Type and Number:

Japanese Patent JP2006095678

Kind Code:

A

Abstract:

To provide a polishing method for a glass substrate for an information recording medium, polishing both an outer peripheral chamfer surface and an inner peripheral chamfer surface to the mirror-finished state.

This polishing method for a glass substrate at least includes: an outer peripheral polishing process of polishing the outer peripheral end face of a disc-like glass substrate material having an inner hole in the central part; and an inner peripheral polishing process of polishing the inner peripheral end face of the work. In the inner peripheral polishing process, the outer peripheral end face is held by a suede-like pad.

Inventors:

AIDA KATSUAKI
MACHIDA HIROYUKI

Application Number:

JP2005247919A

Publication Date:

April 13, 2006

Filing Date:

August 29, 2005

Export Citation:

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