JP5267436B2 - 情報記録媒体用ガラス基板および磁気ディスク - Google Patents

情報記録媒体用ガラス基板および磁気ディスク Download PDF

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Publication number
JP5267436B2
JP5267436B2 JP2009265079A JP2009265079A JP5267436B2 JP 5267436 B2 JP5267436 B2 JP 5267436B2 JP 2009265079 A JP2009265079 A JP 2009265079A JP 2009265079 A JP2009265079 A JP 2009265079A JP 5267436 B2 JP5267436 B2 JP 5267436B2
Authority
JP
Japan
Prior art keywords
glass
less
information recording
glass substrate
recording medium
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
JP2009265079A
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English (en)
Japanese (ja)
Other versions
JP2011108344A (ja
JP2011108344A5 (enExample
Inventor
淳 遠藤
哲也 中島
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 JP2009265079A priority Critical patent/JP5267436B2/ja
Priority to US12/909,221 priority patent/US8349476B2/en
Priority to SG201007829-3A priority patent/SG171527A1/en
Priority to MYPI2010005103 priority patent/MY151552A/en
Publication of JP2011108344A publication Critical patent/JP2011108344A/ja
Publication of JP2011108344A5 publication Critical patent/JP2011108344A5/ja
Application granted granted Critical
Publication of JP5267436B2 publication Critical patent/JP5267436B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73921—Glass or ceramic substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP2009265079A 2009-11-20 2009-11-20 情報記録媒体用ガラス基板および磁気ディスク Expired - Fee Related JP5267436B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2009265079A JP5267436B2 (ja) 2009-11-20 2009-11-20 情報記録媒体用ガラス基板および磁気ディスク
US12/909,221 US8349476B2 (en) 2009-11-20 2010-10-21 Glass substrate for information recording medium and magnetic disk
SG201007829-3A SG171527A1 (en) 2009-11-20 2010-10-25 Glass substrate for information recording medium and magnetic disk
MYPI2010005103 MY151552A (en) 2009-11-20 2010-10-29 Glass substrate for information recording medium and magnetic disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009265079A JP5267436B2 (ja) 2009-11-20 2009-11-20 情報記録媒体用ガラス基板および磁気ディスク

Publications (3)

Publication Number Publication Date
JP2011108344A JP2011108344A (ja) 2011-06-02
JP2011108344A5 JP2011108344A5 (enExample) 2012-11-29
JP5267436B2 true JP5267436B2 (ja) 2013-08-21

Family

ID=44062306

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009265079A Expired - Fee Related JP5267436B2 (ja) 2009-11-20 2009-11-20 情報記録媒体用ガラス基板および磁気ディスク

Country Status (4)

Country Link
US (1) US8349476B2 (enExample)
JP (1) JP5267436B2 (enExample)
MY (1) MY151552A (enExample)
SG (1) SG171527A1 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5720499B2 (ja) * 2010-10-26 2015-05-20 旭硝子株式会社 基板用ガラスおよびガラス基板
JP5168387B2 (ja) * 2011-06-08 2013-03-21 旭硝子株式会社 磁気記録媒体用ガラス基板の製造方法
US9802853B2 (en) 2014-07-31 2017-10-31 Corning Incorporated Fictive temperature in damage-resistant glass having improved mechanical characteristics
US11097974B2 (en) 2014-07-31 2021-08-24 Corning Incorporated Thermally strengthened consumer electronic glass and related systems and methods
US10611664B2 (en) 2014-07-31 2020-04-07 Corning Incorporated Thermally strengthened architectural glass and related systems and methods
US12338159B2 (en) 2015-07-30 2025-06-24 Corning Incorporated Thermally strengthened consumer electronic glass and related systems and methods
JP6923555B2 (ja) 2016-01-12 2021-08-18 コーニング インコーポレイテッド 薄厚熱強化及び化学強化ガラス系物品
US11795102B2 (en) 2016-01-26 2023-10-24 Corning Incorporated Non-contact coated glass and related coating system and method
US11485673B2 (en) 2017-08-24 2022-11-01 Corning Incorporated Glasses with improved tempering capabilities
CN111263737A (zh) 2017-10-25 2020-06-09 Ａｇｃ株式会社 光学玻璃、光学部件和可穿戴设备
TWI785156B (zh) 2017-11-30 2022-12-01 美商康寧公司 具有高熱膨脹係數及對於熱回火之優先破裂行為的非離子交換玻璃
KR20210154825A (ko) 2019-04-23 2021-12-21 코닝 인코포레이티드 확정 응력 프로파일을 갖는 유리 라미네이트 및 그 제조방법
US11697617B2 (en) 2019-08-06 2023-07-11 Corning Incorporated Glass laminate with buried stress spikes to arrest cracks and methods of making the same
TW202146349A (zh) * 2020-03-25 2021-12-16 日商安瀚視特控股股份有限公司 覆蓋玻璃
CN118459088B (zh) * 2024-07-09 2024-09-24 蚌埠凯盛玻璃有限公司 一种汽车用中铝玻璃及其制备方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2837005B2 (ja) 1991-05-20 1998-12-14 ホーヤ株式会社 化学強化用ガラス
JP3875748B2 (ja) 1996-08-02 2007-01-31 Ｈｏｙａ株式会社 ガラス板の製造方法及び製造装置
JP2002338283A (ja) * 2001-05-21 2002-11-27 Nippon Sheet Glass Co Ltd ガラス基板の製造方法及び該製造方法により製造されたガラス基板
JP3995902B2 (ja) * 2001-05-31 2007-10-24 Ｈｏｙａ株式会社 情報記録媒体用ガラス基板及びそれを用いた磁気情報記録媒体
JP4453234B2 (ja) * 2001-08-29 2010-04-21 コニカミノルタオプト株式会社 ハードディスク用ガラス基板およびその製造方法
US6917740B2 (en) * 2003-05-30 2005-07-12 Corning Incorporated Optical fiber having reduced viscosity mismatch
JP4923556B2 (ja) 2005-12-16 2012-04-25 日本電気硝子株式会社 情報記録媒体用ガラス基板
KR101399745B1 (ko) * 2006-02-10 2014-05-26 코닝 인코포레이티드 고온 및 화학적 안정성을 갖는 유리 조성물 및 그 제조방법
JP4930838B2 (ja) 2006-05-15 2012-05-16 富士電機株式会社 情報記録媒体用ガラス基板および情報記録媒体
JP2008171472A (ja) 2007-01-09 2008-07-24 Fuji Electric Device Technology Co Ltd 情報記録媒体用ガラス基板の製造方法、磁気記録ディスクの製造方法および磁気記録ディスク
US8329218B2 (en) * 2007-03-01 2012-12-11 Wisconsin Alumni Research Foundation Unusually stable glasses and methods for forming same
JP4556962B2 (ja) * 2007-03-14 2010-10-06 コニカミノルタオプト株式会社 ブランク材の残留応力を低減する方法、ブランク材及び情報記録媒体用ガラス基板の製造方法
CN102442776A (zh) 2007-03-23 2012-05-09 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
JP5327702B2 (ja) * 2008-01-21 2013-10-30 日本電気硝子株式会社 ガラス基板の製造方法
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

Also Published As

Publication number Publication date
US8349476B2 (en) 2013-01-08
MY151552A (en) 2014-06-13
JP2011108344A (ja) 2011-06-02
US20110123833A1 (en) 2011-05-26
SG171527A1 (en) 2011-06-29

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