JP2002029774A5 - - Google Patents

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Publication number
JP2002029774A5
JP2002029774A5 JP2000219073A JP2000219073A JP2002029774A5 JP 2002029774 A5 JP2002029774 A5 JP 2002029774A5 JP 2000219073 A JP2000219073 A JP 2000219073A JP 2000219073 A JP2000219073 A JP 2000219073A JP 2002029774 A5 JP2002029774 A5 JP 2002029774A5
Authority
JP
Japan
Prior art keywords
recording medium
information recording
glass
glass substrate
less
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2000219073A
Other languages
English (en)
Japanese (ja)
Other versions
JP2002029774A (ja
JP4572453B2 (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2000219073A priority Critical patent/JP4572453B2/ja
Priority claimed from JP2000219073A external-priority patent/JP4572453B2/ja
Publication of JP2002029774A publication Critical patent/JP2002029774A/ja
Publication of JP2002029774A5 publication Critical patent/JP2002029774A5/ja
Application granted granted Critical
Publication of JP4572453B2 publication Critical patent/JP4572453B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP2000219073A 2000-07-19 2000-07-19 情報記録媒体基板用ガラスおよび情報記録媒体用ガラス基板 Expired - Fee Related JP4572453B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000219073A JP4572453B2 (ja) 2000-07-19 2000-07-19 情報記録媒体基板用ガラスおよび情報記録媒体用ガラス基板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000219073A JP4572453B2 (ja) 2000-07-19 2000-07-19 情報記録媒体基板用ガラスおよび情報記録媒体用ガラス基板

Publications (3)

Publication Number Publication Date
JP2002029774A JP2002029774A (ja) 2002-01-29
JP2002029774A5 true JP2002029774A5 (https=) 2007-07-05
JP4572453B2 JP4572453B2 (ja) 2010-11-04

Family

ID=18713919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000219073A Expired - Fee Related JP4572453B2 (ja) 2000-07-19 2000-07-19 情報記録媒体基板用ガラスおよび情報記録媒体用ガラス基板

Country Status (1)

Country Link
JP (1) JP4572453B2 (https=)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4656863B2 (ja) * 2003-06-06 2011-03-23 Ｈｏｙａ株式会社 ジルコニウムを含むガラス組成物、化学強化ガラス物品、磁気記録媒体用ガラス基板、およびガラス板の製造方法
JP5396859B2 (ja) * 2006-11-22 2014-01-22 旭硝子株式会社 情報記録媒体基板用ガラス
CN101578242A (zh) 2007-03-23 2009-11-11 旭硝子株式会社 数据存储介质用基板玻璃及玻璃基板
JP5206261B2 (ja) * 2007-10-26 2013-06-12 旭硝子株式会社 情報記録媒体基板用ガラス、磁気ディスク用ガラス基板および磁気ディスク
JP5699434B2 (ja) * 2009-04-02 2015-04-08 旭硝子株式会社 情報記録媒体基板用ガラス、情報記録媒体用ガラス基板および磁気ディスク
JP5734189B2 (ja) * 2009-08-10 2015-06-17 Hoya株式会社 磁気記録媒体基板用ガラス、磁気記録媒体基板およびその製造方法、ならびに磁気記録媒体
JP5471353B2 (ja) 2009-11-24 2014-04-16 旭硝子株式会社 情報記録媒体用ガラス基板および磁気ディスク

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4497591B2 (ja) * 1998-09-11 2010-07-07 Ｈｏｙａ株式会社 ガラス組成物、それを用いた情報記録媒体用基板および情報記録媒体
JP4544666B2 (ja) * 1998-09-11 2010-09-15 Ｈｏｙａ株式会社 ガラス組成物、それを用いた情報記録媒体用基板および情報記録媒体
JP2001076336A (ja) * 1999-09-08 2001-03-23 Hoya Corp 情報記録媒体用ガラス基板およびそれを用いた情報記録媒体

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