SG152186A1 - Glass for information recording media substrate, glass substrate for magnetic disk and magnetic disk - Google Patents

Glass for information recording media substrate, glass substrate for magnetic disk and magnetic disk

Info

Publication number
SG152186A1
SG152186A1 SG200807855-2A SG2008078552A SG152186A1 SG 152186 A1 SG152186 A1 SG 152186A1 SG 2008078552 A SG2008078552 A SG 2008078552A SG 152186 A1 SG152186 A1 SG 152186A1
Authority
SG
Singapore
Prior art keywords
glass
magnetic disk
information recording
recording media
substrate
Prior art date
Application number
SG200807855-2A
Other languages
English (en)
Inventor
Tetsuya Nakashima
Kei Maeda
Noriaki Shimodaira
Atsuyoshi Takenaka
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
Publication of SG152186A1 publication Critical patent/SG152186A1/en

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
    • 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
    • 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
    • C03C4/00—Compositions for glass with special properties
    • C03C4/20—Compositions for glass with special properties for chemical resistant glass
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31—Surface property or characteristic of web, sheet or block
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31—Surface property or characteristic of web, sheet or block
    • Y10T428/315—Surface modified glass [e.g., tempered, strengthened, etc.]
SG200807855-2A 2007-10-26 2008-10-22 Glass for information recording media substrate, glass substrate for magnetic disk and magnetic disk SG152186A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007279257 2007-10-26
JP2008112710 2008-04-23

Publications (1)

Publication Number Publication Date
SG152186A1 true SG152186A1 (en) 2009-05-29

Family

ID=40490519

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200807855-2A SG152186A1 (en) 2007-10-26 2008-10-22 Glass for information recording media substrate, glass substrate for magnetic disk and magnetic disk

Country Status (5)

Country Link
US (2) US7838136B2 (ja)
JP (1) JP5206261B2 (ja)
KR (1) KR20090042732A (ja)
DE (1) DE102008053173A1 (ja)
SG (1) SG152186A1 (ja)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102320742A (zh) * 2007-03-23 2012-01-18 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
CN102584009A (zh) 2008-01-28 2012-07-18 旭硝子株式会社 数据存储介质基板用玻璃、数据存储介质用玻璃基板及磁盘
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
JP5267436B2 (ja) * 2009-11-20 2013-08-21 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
JP2011132061A (ja) * 2009-12-24 2011-07-07 Asahi Glass Co Ltd 情報記録媒体用ガラス基板および磁気ディスク
DE102010009585B4 (de) * 2010-02-26 2012-04-19 Schott Ag Lithium-Aluminosilicatglas mit hohen E-Modul, Verfahren zu dessen Herstellung und Verwendung
JP5499324B2 (ja) * 2010-04-28 2014-05-21 旭硝子株式会社 情報記録媒体用ガラス基板及びその製造のための研磨用コロイダルシリカスラリー、並びに情報記録媒体
JP2012020921A (ja) 2010-06-18 2012-02-02 Asahi Glass Co Ltd ディスプレイ装置用のガラスおよびガラス板
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
US9359251B2 (en) 2012-02-29 2016-06-07 Corning Incorporated Ion exchanged glasses via non-error function compressive stress profiles
US9156725B2 (en) 2012-05-30 2015-10-13 Corning Incorporated Down-drawable chemically strengthened glass for information storage devices
US11079309B2 (en) 2013-07-26 2021-08-03 Corning Incorporated Strengthened glass articles having improved survivability
US9517968B2 (en) 2014-02-24 2016-12-13 Corning Incorporated Strengthened glass with deep depth of compression
DE102014106817A1 (de) 2014-05-14 2015-11-19 Schott Ag Verfahren und Vorrichtung zur Herstellung eines Dünnglas-Bands und verfahrensgemäß hergestelltes Dünnglas-Band
TW202311197A (zh) 2014-06-19 2023-03-16 美商康寧公司 無易碎應力分布曲線的玻璃
KR20230058725A (ko) 2014-10-08 2023-05-03 코닝 인코포레이티드 금속 산화물 농도 구배를 포함한 유리 및 유리 세라믹
US10150698B2 (en) 2014-10-31 2018-12-11 Corning Incorporated Strengthened glass with ultra deep depth of compression
DK3215471T3 (da) 2014-11-04 2022-01-17 Corning Inc Dybe, ubrydelige belastningsprofiler og fremgangsmåde til fremstilling
US11613103B2 (en) 2015-07-21 2023-03-28 Corning Incorporated Glass articles exhibiting improved fracture performance
US9701569B2 (en) 2015-07-21 2017-07-11 Corning Incorporated Glass articles exhibiting improved fracture performance
JP6839192B2 (ja) 2015-12-11 2021-03-03 コーニング インコーポレイテッド 金属酸化物濃度勾配を含むフュージョン成形可能なガラス系物品
EP4269368A3 (en) 2016-04-08 2023-11-22 Corning Incorporated Glass-based articles including a stress profile comprising two regions, and methods of making
CN111423110A (zh) 2016-04-08 2020-07-17 康宁股份有限公司 包含金属氧化物浓度梯度的玻璃基制品
JPWO2020175407A1 (ja) * 2019-02-25 2020-09-03
JPWO2022009850A1 (ja) * 2020-07-10 2022-01-13

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US4944986A (en) * 1988-09-23 1990-07-31 Zuel Company Anti-reflective glass surface
US5846278A (en) * 1996-07-19 1998-12-08 Westinghouse Savannah River Company Method of determining glass durability
US6132843A (en) * 1996-11-14 2000-10-17 Nippon Sheet Glass Do., Ltd. Glass substrate for magnetic disks
US6313052B1 (en) 1998-02-27 2001-11-06 Asahi Glass Company Ltd. Glass for a substrate
US7264894B2 (en) * 1998-03-13 2007-09-04 Hoya Corporation Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate
JPH11302032A (ja) 1998-04-17 1999-11-02 Nippon Sheet Glass Co Ltd ガラス組成物およびそれを用いた情報記録媒体用基板
US6553788B1 (en) * 1999-02-23 2003-04-29 Nippon Sheet Glass Co., Ltd. Glass substrate for magnetic disk and method for manufacturing
US6387510B1 (en) 1999-04-13 2002-05-14 Asahi Glass Company, Limited Glass for a data storage medium substrate and glass substrate for data storage media
JP2000322731A (ja) * 1999-05-07 2000-11-24 Ishizuka Glass Co Ltd 情報記録媒体用ガラス基板
JP5022532B2 (ja) * 1999-06-08 2012-09-12 旭硝子株式会社 基板用ガラスおよびガラス基板
GB2361382A (en) * 2000-04-12 2001-10-17 Mitel Corp Tree hierarchy and description for generated logs
US6949485B2 (en) 2000-06-01 2005-09-27 Asabi Glass Company, Limited Glass for substrate and glass substrate
JP4572453B2 (ja) * 2000-07-19 2010-11-04 旭硝子株式会社 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
JP2001229526A (ja) * 2001-01-04 2001-08-24 Nippon Sheet Glass Co Ltd 化学強化用ガラス組成物からなる磁気ディスク基板および磁気ディスク媒体。
JP4442051B2 (ja) * 2001-05-09 2010-03-31 コニカミノルタオプト株式会社 ガラス基板およびこれを用いた情報記録用媒体、光通信用素子
JP4785274B2 (ja) * 2001-05-29 2011-10-05 日本板硝子株式会社 ガラス物品およびそれを用いた磁気記録媒体用ガラス基板
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
JP4530618B2 (ja) * 2002-09-27 2010-08-25 コニカミノルタオプト株式会社 ガラス組成物及びガラス基板
JP4790300B2 (ja) 2005-04-14 2011-10-12 株式会社日立製作所 ガラス
JP2007279257A (ja) 2006-04-04 2007-10-25 Ricoh Co Ltd ベルト装置、及び画像形成装置
KR101133481B1 (ko) * 2006-05-10 2012-06-05 아사히 가라스 가부시키가이샤 디스플레이 기판용 플로트 유리 및 그 제조 방법
JP2008112710A (ja) 2006-10-03 2008-05-15 Hitachi Chem Co Ltd リチウム二次電池用負極材料、これを用いたリチウム二次電池用負極及びリチウム二次電池
MY157935A (en) 2006-11-22 2016-08-15 Asahi Glass Co Ltd Glass for information recording media substrate
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

Also Published As

Publication number Publication date
US20100330396A1 (en) 2010-12-30
KR20090042732A (ko) 2009-04-30
JP5206261B2 (ja) 2013-06-12
US20090110963A1 (en) 2009-04-30
DE102008053173A1 (de) 2009-04-30
JP2009280478A (ja) 2009-12-03
US7838136B2 (en) 2010-11-23
US8119268B2 (en) 2012-02-21

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