JP4572453B2 - 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 - Google Patents

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 Download PDF

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Publication number
JP4572453B2
JP4572453B2 JP2000219073A JP2000219073A JP4572453B2 JP 4572453 B2 JP4572453 B2 JP 4572453B2 JP 2000219073 A JP2000219073 A JP 2000219073A JP 2000219073 A JP2000219073 A JP 2000219073A JP 4572453 B2 JP4572453 B2 JP 4572453B2
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JP
Japan
Prior art keywords
glass
less
information recording
recording medium
substrate
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.)
Expired - Fee Related
Application number
JP2000219073A
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English (en)
Japanese (ja)
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JP2002029774A (ja
JP2002029774A5 (https=
Inventor
友幸 小林
哲也 中島
泰昌 中尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP2000219073A priority Critical 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

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/078—Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Magnetic Record Carriers (AREA)
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 JP2002029774A5 (https=) 2007-07-05
JP4572453B2 true 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

Also Published As

Publication number Publication date
JP2002029774A (ja) 2002-01-29

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