SG50892A1 - A glass-ceramic substrate for a magnetic information storage medium - Google Patents

A glass-ceramic substrate for a magnetic information storage medium

Info

Publication number
SG50892A1
SG50892A1 SG1997004055A SG1997004055A SG50892A1 SG 50892 A1 SG50892 A1 SG 50892A1 SG 1997004055 A SG1997004055 A SG 1997004055A SG 1997004055 A SG1997004055 A SG 1997004055A SG 50892 A1 SG50892 A1 SG 50892A1
Authority
SG
Singapore
Prior art keywords
glass
storage medium
information storage
ceramic substrate
magnetic information
Prior art date
Application number
SG1997004055A
Other languages
English (en)
Inventor
Naoyuki Goto
Original Assignee
Kabushiki Kaisha Ohara
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 Kabushiki Kaisha Ohara filed Critical Kabushiki Kaisha Ohara
Publication of SG50892A1 publication Critical patent/SG50892A1/en

Links

Classifications

    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • 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
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0009—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing silica as main constituent
    • 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
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0018—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and monovalent metal oxide as main constituents
    • C03C10/0027—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and monovalent metal oxide as main constituents containing SiO2, Al2O3, Li2O as main constituents
    • 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
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/0005—Other surface treatment of glass not in the form of fibres or filaments by irradiation
    • C03C23/0025—Other surface treatment of glass not in the form of fibres or filaments by irradiation by a laser beam
    • 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
    • C03C3/097—Glass compositions containing silica with 40% to 90% silica, by weight containing phosphorus, niobium or tantalum
    • 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)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Laser Beam Processing (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
SG1997004055A 1996-11-14 1997-11-14 A glass-ceramic substrate for a magnetic information storage medium SG50892A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31883896A JP3219705B2 (ja) 1996-11-14 1996-11-14 磁気情報記憶媒体用ガラスセラミックス基板

Publications (1)

Publication Number Publication Date
SG50892A1 true SG50892A1 (en) 1998-07-20

Family

ID=18103527

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1997004055A SG50892A1 (en) 1996-11-14 1997-11-14 A glass-ceramic substrate for a magnetic information storage medium

Country Status (9)

Country Link
US (1) US5972816A (ko)
EP (1) EP0843304B1 (ko)
JP (1) JP3219705B2 (ko)
KR (1) KR100261794B1 (ko)
CN (1) CN1153743C (ko)
DE (1) DE69705693T2 (ko)
MY (1) MY119020A (ko)
SG (1) SG50892A1 (ko)
TW (1) TW434195B (ko)

Families Citing this family (37)

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US6287663B1 (en) * 1995-10-31 2001-09-11 Kabushiki Kaisha Ohara Glass-ceramic substrate for a magnetic information storage medium
US6191058B1 (en) * 1996-02-02 2001-02-20 Kabushiki Kaisha Ohara Glass-ceramic substrate for a magnetic disk
US6120922A (en) * 1997-04-28 2000-09-19 Goto; Naoyuki Glass-ceramic substrate for a magnetic information storage medium
US6344423B2 (en) * 1998-02-26 2002-02-05 Kabushiki Kaisha Ohara High rigidity glass-ceramic substrate for a magnetic information storage medium
JP3311308B2 (ja) * 1998-03-03 2002-08-05 株式会社オハラ 垂直磁気記録媒体用ガラスセラミックス基板
JP2000203880A (ja) * 1998-09-11 2000-07-25 Ohara Inc 情報記憶媒体用ガラスセラミックス基板及びその製造方法、並びに情報記憶媒体ディスク
JP3959588B2 (ja) * 1999-05-13 2007-08-15 日本板硝子株式会社 情報記録媒体用ガラス基板、情報記録媒体用ガラス基板の製造方法及び情報記録媒体
CN1243106A (zh) * 1999-05-21 2000-02-02 彭波 记录装置基板用结晶化玻璃及制造方法
DE69927511T3 (de) * 1999-05-28 2009-06-25 Nippon Electric Glass Co., Ltd., Otsu Transparentes kristallisiertes LI2O-AI2O3-SiO2-Glas
US6677259B2 (en) * 1999-08-10 2004-01-13 Kabushiki Kaisha Ohara Glass-ceramics for a light filter
JP3107304B1 (ja) * 1999-08-10 2000-11-06 株式会社オハラ 光フィルター用ガラスセラミックス及び光フィルター
US6664503B1 (en) 1999-09-07 2003-12-16 Asahi Glass Company, Ltd. Method for manufacturing a magnetic disk
AU7316500A (en) 1999-09-21 2001-04-24 Kabushiki Kaisha Ohara Holding member for information storage disk and information storage disk drive device
JP4704585B2 (ja) * 2000-07-07 2011-06-15 株式会社オハラ 低膨張透明結晶化ガラス、結晶化ガラス基板及び光導波路素子
US7071132B2 (en) * 2000-07-07 2006-07-04 Kabushiki Kaisha Ohara Low expansion transparent glass ceramics
JP4428835B2 (ja) * 2000-08-09 2010-03-10 昭和電工株式会社 磁気記録媒体及びその製造方法
US6860795B2 (en) * 2001-09-17 2005-03-01 Hitachi Global Storage Technologies Netherlands B.V. Edge finishing process for glass or ceramic disks used in disk drive data storage devices
US7226881B2 (en) * 2003-09-19 2007-06-05 Kabushiki Kaisha Ohara Ultra low thermal expansion transparent glass ceramics
DE102004008824B4 (de) * 2004-02-20 2006-05-04 Schott Ag Glaskeramik mit geringer Wärmeausdehnung sowie deren Verwendung
JP4977372B2 (ja) * 2005-01-31 2012-07-18 株式会社オハラ 結晶化ガラスおよびその製造方法
US9138913B2 (en) * 2005-09-08 2015-09-22 Imra America, Inc. Transparent material processing with an ultrashort pulse laser
JP4755135B2 (ja) * 2007-04-27 2011-08-24 株式会社オハラ 結晶化ガラス
DE102007033338B4 (de) * 2007-07-16 2010-06-02 Schott Ag Hartstoffbeschichteter Glas- oder Glaskeramik-Artikel und Verfahren zu dessen Herstellung sowie Verwendung des Glas- oder Glaskeramik-Artikels
JP5070006B2 (ja) * 2007-11-02 2012-11-07 株式会社オハラ 結晶化ガラス
KR100988603B1 (ko) * 2008-05-21 2010-10-18 삼성전기주식회사 낮은 열팽창계수를 가지는 유리조성물, 유리섬유,인쇄회로기판의 절연층 및 인쇄회로기판
JP2011129232A (ja) * 2009-12-21 2011-06-30 Asahi Glass Co Ltd ガラス基板の製造方法
US20130167982A1 (en) * 2010-06-30 2013-07-04 Jfe Steel Corporation Method for manufacturing grain oriented electrical steel sheet
EP3342759B1 (en) 2011-11-16 2021-08-25 Corning Incorporated Ion exchangeable glass with high crack initiation threshold
US8664130B2 (en) * 2012-04-13 2014-03-04 Corning Incorporated White, opaque β-spodumene/rutile glass-ceramic articles and methods for making the same
US9701574B2 (en) 2013-10-09 2017-07-11 Corning Incorporated Crack-resistant glass-ceramic articles and methods for making the same
JP2015110508A (ja) * 2013-10-31 2015-06-18 株式会社オハラ 結晶化ガラス
US9751798B2 (en) * 2014-06-30 2017-09-05 Corning Incorporated White, opaque,β-spodumene glass-ceramic articles with inherent damage resistance and methods for making the same
US10703671B2 (en) * 2016-01-26 2020-07-07 Corning Incorporated Photosensitive glasses and glass ceramics and composite glass materials made therefrom
WO2018071360A1 (en) 2016-10-12 2018-04-19 Corning Incorporated Glass ceramics
CN110963669B (zh) * 2019-12-31 2021-05-28 中建材蚌埠玻璃工业设计研究院有限公司 一种玻璃原料前处理造粒工艺
CN111847887A (zh) * 2020-07-16 2020-10-30 浙江皓翔矿业有限公司 利用叶蜡石矿渣研制的英固溶体和k-石英固溶体低膨胀微晶玻璃及其制备方法
CN112939469B (zh) * 2021-03-23 2022-03-08 成都光明光电股份有限公司 微晶玻璃和微晶玻璃制品

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JPS60229234A (ja) * 1984-04-27 1985-11-14 Sumitomo Special Metals Co Ltd 磁気ディスク用基板の製造方法
US4814297A (en) * 1987-04-01 1989-03-21 Corning Glass Works Strengthened glass article and method
JPH0692263B2 (ja) * 1989-02-16 1994-11-16 伊藤忠商事株式会社 記録ディスク基板及びその製造方法
US4971932B1 (en) * 1989-02-24 1995-01-03 Corning Glass Works Magnetic memory storage devices
JP2516537B2 (ja) * 1992-09-14 1996-07-24 株式会社オハラ 低膨張透明結晶化ガラス
US5391522A (en) * 1993-05-19 1995-02-21 Kabushiki Kaisya Ohara Glass-ceramic for magnetic disks and method for manufacturing the same
JP2516553B2 (ja) * 1993-05-19 1996-07-24 株式会社オハラ 磁気ディスク用結晶化ガラスおよびその製造方法
EP0729924B1 (en) * 1993-05-19 2000-01-26 Kabushiki Kaisha Ohara Glass-ceramic for a magnetic disk substrate
US5626935A (en) * 1993-05-19 1997-05-06 Kabushiki Kaisya Ohara Magnetic disk substrate and method for manufacturing the same
DE4321373C2 (de) * 1993-06-26 1995-12-14 Schott Glaswerke Glaskeramik mit hoher Transmission im Wellenlängenbereich von 2700 bis 3300 nm, Verfahren zu deren Herstellung und deren Verwendung
TW300879B (ko) * 1993-11-10 1997-03-21 Ibm
JP2959363B2 (ja) * 1993-12-09 1999-10-06 株式会社オハラ 磁気ディスク用着色結晶化ガラス
JP2882995B2 (ja) * 1994-03-15 1999-04-19 株式会社オハラ 結晶化ガラス、磁気ディスク用結晶化ガラス基板及び結晶化ガラスの製造方法
US5744208A (en) * 1994-06-24 1998-04-28 Corning Incorporated Glass-ceramics containing lithium disilicate and tridymite
JP2668057B2 (ja) * 1994-09-13 1997-10-27 株式会社オハラ 低膨張透明ガラスセラミックス
JP2628460B2 (ja) * 1994-10-07 1997-07-09 株式会社オハラ 磁気ディスク基板およびその製造方法
JP2736869B2 (ja) * 1994-11-16 1998-04-02 株式会社オハラ 磁気ディスク基板の製造方法
US5550696A (en) * 1995-01-27 1996-08-27 International Business Machines Corporation Magnetic recording disk having textured test band for controlling texture in the slider landing zone
US5691256A (en) * 1995-12-28 1997-11-25 Yamamura Glass Co., Ltd. Glass composition for magnetic disk substrates and magnetic disk substrate
JPH10158034A (ja) * 1996-10-04 1998-06-16 S Ii C Kk 情報記録ディスク基板用結晶化ガラス

Also Published As

Publication number Publication date
DE69705693D1 (de) 2001-08-23
EP0843304A1 (en) 1998-05-20
MY119020A (en) 2005-03-31
EP0843304B1 (en) 2001-07-18
US5972816A (en) 1999-10-26
KR100261794B1 (ko) 2000-07-15
CN1153743C (zh) 2004-06-16
DE69705693T2 (de) 2002-05-08
CN1198415A (zh) 1998-11-11
KR19980042443A (ko) 1998-08-17
JPH10139479A (ja) 1998-05-26
JP3219705B2 (ja) 2001-10-15
TW434195B (en) 2001-05-16

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