Title:
GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, INFORMATION RECORDING MEDIUM, AND INFORMATION RECORDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/096311
Kind Code:
A1
Abstract:
The disclosed glass substrate for an information recording medium is characterized by being provided ahead of time with convex or concave curvature in the direction from a through-hole to the outside in a manner so that the primary surface is corrected and becomes flat by means of clamping force from both sides of the rim when being affixed to a rotating axle.
Inventors:
FUKUMOTO NAOYUKI (JP)
Application Number:
PCT/JP2011/051432
Publication Date:
August 11, 2011
Filing Date:
January 26, 2011
Export Citation:
Assignee:
KONICA MINOLTA OPTO INC (JP)
FUKUMOTO NAOYUKI (JP)
FUKUMOTO NAOYUKI (JP)
International Classes:
G11B5/73; G11B17/028
Foreign References:
| JPH11296943A | 1999-10-29 | |||
| JP2006318583A | 2006-11-24 | |||
| JP2010080025A | 2010-04-08 | |||
| JPH10302251A | 1998-11-13 |
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Claims: