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WO2008084779A1 - 情報記録媒体基板用素材、情報記録媒体基板、情報記録媒体それぞれの製造方法 - Google Patents

情報記録媒体基板用素材、情報記録媒体基板、情報記録媒体それぞれの製造方法 Download PDF

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Publication number
WO2008084779A1
WO2008084779A1 PCT/JP2008/050049 JP2008050049W WO2008084779A1 WO 2008084779 A1 WO2008084779 A1 WO 2008084779A1 JP 2008050049 W JP2008050049 W JP 2008050049W WO 2008084779 A1 WO2008084779 A1 WO 2008084779A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording medium
information recording
disk
shaped glass
manufacturing
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.)
Ceased
Application number
PCT/JP2008/050049
Other languages
English (en)
French (fr)
Inventor
Xuelu Zou
Yoichi Hachitani
Kazuo Tachiwana
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.)
Hoya Corp
Original Assignee
Hoya Corp
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 Hoya Corp filed Critical Hoya Corp
Priority to CN2008800020474A priority Critical patent/CN101578240B/zh
Priority to US12/522,062 priority patent/US8656734B2/en
Publication of WO2008084779A1 publication Critical patent/WO2008084779A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • C03B11/088—Flat discs
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B18/00—Shaping glass in contact with the surface of a liquid
    • C03B18/02—Forming sheets
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
    • C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
    • 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
    • C03C4/08—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths
    • C03C4/082—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths for infrared absorbing 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
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/40—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Glass Compositions (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

一定の薄板状の情報記録媒体基板用素材を量産するための円盤状ガラス素材の製造方法を提供すること、前記方法で製造した素材から情報記録媒体用基板ならびに情報記録媒体を製造する方法を提供する。熔融ガラスから、複数の円盤状ガラス素材を逐次に成形することを含む円盤状ガラス素材の製造方法。前記円盤状ガラス素材に成形される熔融ガラスに含まれる赤外線吸収性イオンの濃度の経時的な変動を抑制して、前記複数の円盤状のガラス素材の板厚の変動が、１０００枚のガラス素材について、基準値に対して±１５％の範囲内になるようにする方法。０．１～１００ｐｐｍの赤外線吸収性イオンを含むガラスからなる複数の円盤状ガラス素材を成形する際に、前記円盤状ガラス素材に成形される熔融ガラスに含まれる赤外線吸収性イオンの濃度の経時的な変動を抑制して、前記複数の板状のガラス素材の板厚の変動を抑制する方法。
PCT/JP2008/050049 2007-01-10 2008-01-08 情報記録媒体基板用素材、情報記録媒体基板、情報記録媒体それぞれの製造方法 Ceased WO2008084779A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008800020474A CN101578240B (zh) 2007-01-10 2008-01-08 信息记录介质基板用素材、信息记录介质基板、信息记录介质各自的制造方法
US12/522,062 US8656734B2 (en) 2007-01-10 2008-01-08 Material for information recording medium substrate, information recording medium substrate, information recording medium, and method for manufacturing them

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-002151 2007-01-10
JP2007002151A JP5074042B2 (ja) 2007-01-10 2007-01-10 情報記録媒体基板用素材、情報記録媒体基板、情報記録媒体それぞれの製造方法

Publications (1)

Publication Number Publication Date
WO2008084779A1 true WO2008084779A1 (ja) 2008-07-17

Family

ID=39608668

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050049 Ceased WO2008084779A1 (ja) 2007-01-10 2008-01-08 情報記録媒体基板用素材、情報記録媒体基板、情報記録媒体それぞれの製造方法

Country Status (4)

Country Link
US (1) US8656734B2 (ja)
JP (1) JP5074042B2 (ja)
CN (1) CN101578240B (ja)
WO (1) WO2008084779A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012008586A1 (ja) * 2010-07-15 2012-01-19 旭硝子株式会社 プラズマディスプレイ装置
WO2013001722A1 (ja) * 2011-06-30 2013-01-03 コニカミノルタアドバンストレイヤー株式会社 Ｈｄｄ用ガラス基板の製造方法
EP4091997A4 (en) * 2020-03-13 2024-02-21 Nippon Sheet Glass Company, Limited GLASS COMPOSITION, GLASS PLATE AND RELATED PRODUCTION METHOD, AND SUBSTRATE FOR INFORMATION RECORDING MEDIUM

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WO2009075293A1 (ja) * 2007-12-10 2009-06-18 National Institute Of Advanced Industrial Science And Technology カーボンナノチューブの簡便な分離法
WO2010007902A1 (ja) * 2008-07-14 2010-01-21 コニカミノルタオプト株式会社 情報記録媒体用ガラス基板及び情報記録媒体
KR101695807B1 (ko) * 2008-07-25 2017-01-13 비이브 헬쓰케어 컴퍼니 화합물
EP2314550A1 (fr) * 2009-10-26 2011-04-27 AGC Glass Europe Materiau vitrocristallin silico-sodo-calcique
WO2011080913A1 (ja) 2009-12-29 2011-07-07 Hoya株式会社 磁気ディスク用ガラス基板の製造方法及び磁気ディスク用ガラス基板
JPWO2011096310A1 (ja) * 2010-02-03 2013-06-10 コニカミノルタアドバンストレイヤー株式会社 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
US9359251B2 (en) 2012-02-29 2016-06-07 Corning Incorporated Ion exchanged glasses via non-error function compressive stress profiles
JPWO2013183457A1 (ja) * 2012-06-08 2016-01-28 旭硝子株式会社 光学素子
US20140050843A1 (en) * 2012-08-17 2014-02-20 Wd Media, Inc. Dual single sided sputter chambers with sustaining heater
US20140152914A1 (en) * 2012-11-30 2014-06-05 Corning Incorporated Low-Fe Glass for IR Touch Screen Applications
US11079309B2 (en) 2013-07-26 2021-08-03 Corning Incorporated Strengthened glass articles having improved survivability
CN105813996A (zh) * 2013-12-13 2016-07-27 旭硝子株式会社 化学强化用玻璃和化学强化玻璃以及化学强化玻璃的制造方法
US9517968B2 (en) 2014-02-24 2016-12-13 Corning Incorporated Strengthened glass with deep depth of compression
TWI852054B (zh) 2014-06-19 2024-08-11 美商康寧公司 無易碎應力分布曲線的玻璃
EP3896042A1 (en) 2014-10-08 2021-10-20 Corning Incorporated Glasses and glass ceramics including a metal oxide concentration gradient
US10150698B2 (en) 2014-10-31 2018-12-11 Corning Incorporated Strengthened glass with ultra deep depth of compression
EP4011843A3 (en) 2014-11-04 2022-06-29 Corning Incorporated Deep non-frangible stress profiles and methods of making
JP6631935B2 (ja) * 2015-01-05 2020-01-15 日本電気硝子株式会社 ガラス板の製造方法
US10579106B2 (en) 2015-07-21 2020-03-03 Corning Incorporated Glass articles exhibiting improved fracture performance
US11613103B2 (en) 2015-07-21 2023-03-28 Corning Incorporated Glass articles exhibiting improved fracture performance
DE202016008995U1 (de) 2015-12-11 2021-04-20 Corning Incorporated Durch Fusion bildbare glasbasierte Artikel mit einem Metalloxidkonzentrationsgradienten
DE202017007024U1 (de) 2016-04-08 2019-03-25 Corning Incorporated Glasbasierte Artikel einschließlich eines Spannungsprofils, das zwei Gebiete umfasst
KR102018834B1 (ko) 2016-04-08 2019-09-05 코닝 인코포레이티드 금속 산화물 농도 구배를 포함하는 유리-계 제품
SG11202011211RA (en) * 2018-05-16 2020-12-30 Hoya Corp Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus
WO2020018285A1 (en) * 2018-07-16 2020-01-23 Corning Incorporated Methods of ceramming glass articles having improved warp
KR102356026B1 (ko) 2018-07-16 2022-02-08 코닝 인코포레이티드 개선된 특성을 갖는 유리 세라믹 물품 및 이의 제조 방법
CN112960904B (zh) * 2021-02-09 2022-02-15 醴陵旗滨电子玻璃有限公司 锂铝硅玻璃、锂铝硅化学强化玻璃及其制备方法与应用
CN114230174B (zh) * 2021-12-24 2022-08-02 福耀玻璃工业集团股份有限公司 玻璃、玻璃组件及车辆
CN114907016B (zh) * 2022-06-24 2023-08-01 成都光明光电股份有限公司 微晶玻璃、微晶玻璃制品及其制造方法
US12234175B1 (en) * 2024-04-16 2025-02-25 Corning Incorporated Glass parts and gob-pressing methods for making such
US12441645B1 (en) 2024-04-16 2025-10-14 Corning Incorporated Glass parts and gob-pressing methods for making such

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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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JP2004288228A (ja) * 2003-01-31 2004-10-14 Hoya Corp 情報記録媒体用基板、情報記録媒体およびその製造方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012008586A1 (ja) * 2010-07-15 2012-01-19 旭硝子株式会社 プラズマディスプレイ装置
US8604693B2 (en) 2010-07-15 2013-12-10 Asahi Glass Company, Limited Plasma display device containing cover glass and substrates having similar thermal expansion coefficients
WO2013001722A1 (ja) * 2011-06-30 2013-01-03 コニカミノルタアドバンストレイヤー株式会社 Ｈｄｄ用ガラス基板の製造方法
EP4091997A4 (en) * 2020-03-13 2024-02-21 Nippon Sheet Glass Company, Limited GLASS COMPOSITION, GLASS PLATE AND RELATED PRODUCTION METHOD, AND SUBSTRATE FOR INFORMATION RECORDING MEDIUM

Also Published As

Publication number Publication date
US8656734B2 (en) 2014-02-25
CN101578240A (zh) 2009-11-11
JP5074042B2 (ja) 2012-11-14
JP2008169061A (ja) 2008-07-24
US20100011814A1 (en) 2010-01-21
CN101578240B (zh) 2010-11-10

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