Title:
結晶化ガラスおよびその製造方法、ならびにそれを用いた情報記録媒体用基板、情報記録媒体および情報記録装置
Document Type and Number:
Japanese Patent JP4450460
Kind Code:
B2
Abstract:
A glass-ceramics having a high elastic modulus, processes for producing the same, and an information recording medium substrate effectively inhibited from bending or vibrating are disclosed. The glass-ceramics has a major crystalline phase which has a Mohs' hardness of 6 or higher and is constituted of crystals containing manganese (Mn).
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Inventors:
Shoichi Kishimoto
Akihiro Koyama
Hiroyuki Tanaka
Akihiro Koyama
Hiroyuki Tanaka
Application Number:
JP31801499A
Publication Date:
April 14, 2010
Filing Date:
November 09, 1999
Export Citation:
Assignee:
HOYA CORPORATION
International Classes:
C03C10/04; C03C3/062; C03C3/083; C03C3/085; C03C3/097; C03C10/00; C03C10/02; C03C10/06; C03C23/00; G11B5/73; G11B5/84; G11B7/24047; G11B7/253; G11B7/2531; G11B7/26
Domestic Patent References:
| JP4321597A | ||||
| JP4310540A | ||||
| JP4321537A | ||||
| JP63117929A | ||||
| JP10072238A | ||||
| JP63151643A | ||||
| JP6009234A | ||||
| JP2279536A |
Other References:
I. W. DONALD,Preparation, properties and chemistry of glass and glass-ceramic-to-metal seals and coatings,Journal of Materials Science,米国,Springer,1993年,Vol. 28,2841-2886
Attorney, Agent or Firm:
Shizuo Nakamura