SG97155A1 - Substrate for information recording medium and magnetic recording medium composed of crystallized glass - Google Patents

Substrate for information recording medium and magnetic recording medium composed of crystallized glass

Info

Publication number
SG97155A1
SG97155A1 SG200003751A SG200003751A SG97155A1 SG 97155 A1 SG97155 A1 SG 97155A1 SG 200003751 A SG200003751 A SG 200003751A SG 200003751 A SG200003751 A SG 200003751A SG 97155 A1 SG97155 A1 SG 97155A1
Authority
SG
Singapore
Prior art keywords
recording medium
substrate
information recording
mol
crystallized glass
Prior art date
Application number
SG200003751A
Other languages
English (en)
Inventor
Zou Xuelu
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
Publication of SG97155A1 publication Critical patent/SG97155A1/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
    • 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
    • C03C10/0036—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 a divalent metal oxide as main constituents
    • C03C10/0045—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 a divalent metal oxide as main constituents containing SiO2, Al2O3 and MgO as main constituents
    • 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)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (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)
SG200003751A 1999-07-07 2000-07-05 Substrate for information recording medium and magnetic recording medium composed of crystallized glass SG97155A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP19357499 1999-07-07
JP29300399 1999-10-14

Publications (1)

Publication Number Publication Date
SG97155A1 true SG97155A1 (en) 2003-07-18

Family

ID=26507953

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200003751A SG97155A1 (en) 1999-07-07 2000-07-05 Substrate for information recording medium and magnetic recording medium composed of crystallized glass

Country Status (5)

Country Link
US (3) US6627566B1 (zh)
EP (1) EP1067102B1 (zh)
CN (1) CN1230397C (zh)
AT (1) ATE537127T1 (zh)
SG (1) SG97155A1 (zh)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG97155A1 (en) * 1999-07-07 2003-07-18 Hoya Corp Substrate for information recording medium and magnetic recording medium composed of crystallized glass
DE10064808B4 (de) * 2000-12-22 2005-09-01 Schott Ag Zinkoxidhaltiges Borosilicatglas und dessen Verwendungen
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
US20030134734A1 (en) * 2001-08-08 2003-07-17 Shiro Nishimoto Press molding method for glass and manufacturing method for glass substrate using this method
JP4587257B2 (ja) * 2001-10-24 2010-11-24 Ｈｏｙａ株式会社 ガラス、ガラス基板ブランクスおよびガラス基板それぞれの製造方法
JP4549184B2 (ja) * 2002-06-03 2010-09-22 Ｈｏｙａ株式会社 情報記録媒体用基板並びに情報記録媒体およびその製造方法
DE10245234B4 (de) 2002-09-27 2011-11-10 Schott Ag Kristallisierbares Glas, seine Verwendung zur Herstellung einer hochsteifen, bruchfesten Glaskeramik mit gut polierbarer Oberfläche sowie Verwendung der Glaskeramik
DE10346197B4 (de) 2003-09-30 2006-02-16 Schott Ag Glaskeramik, Verfahren zur Herstellung einer solchen und Verwendung
JP4771835B2 (ja) * 2006-03-06 2011-09-14 株式会社リコー トナー及び画像形成方法
US7465687B2 (en) * 2006-05-31 2008-12-16 Corning Incorporated Tough cordierite glass-ceramics
US7802478B2 (en) 2007-06-27 2010-09-28 Corning Incorporated Methods and apparatus for measuring elastic modulus of non-solid ceramic materials by resonance
JP5070006B2 (ja) * 2007-11-02 2012-11-07 株式会社オハラ 結晶化ガラス
EP2065346A1 (en) 2007-11-30 2009-06-03 Corning Incorporated High thermal conductivity cordierite glass-ceramic materials
JP5658030B2 (ja) 2008-03-19 2015-01-21 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、磁気記録媒体およびそれらの製造方法
WO2011019010A1 (ja) * 2009-08-10 2011-02-17 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
JP5788643B2 (ja) * 2010-05-21 2015-10-07 株式会社オハラ ガラス基板
US8394516B2 (en) * 2010-10-29 2013-03-12 Hoya Corporation Glass substrate for magnetic recording medium and magnetic recording medium
SG188775A1 (en) * 2011-09-30 2013-04-30 Hoya Corp Manufacturing method of glass substrate for magnetic disk, magnetic disk, and magnetic data recording/reproducing device
US8885447B2 (en) * 2012-03-29 2014-11-11 Hoya Corporation Glass for magnetic recording medium substrate, glass substrate for magnetic recording medium, and their use
CN104703939A (zh) * 2012-06-29 2015-06-10 康宁股份有限公司 用于半导体加工的玻璃陶瓷基材
US9187365B2 (en) 2013-02-25 2015-11-17 Corning Incorporated Methods for measuring the asymmetry of a glass-sheet manufacturing process
CN106587612A (zh) * 2016-12-23 2017-04-26 成都光明光电有限责任公司 玻璃组合物及其制备方法
EP4029840A4 (en) * 2019-09-10 2023-12-06 Nippon Sheet Glass Company, Limited GLASS FILLER, METHOD FOR PRODUCING SAME, AND COMPOSITION CONTAINING A RESIN AND COMPRISING GLASS FILLER
CN112939471A (zh) * 2021-03-15 2021-06-11 武汉理工大学 一种高导热低膨胀低介电的微晶玻璃及其制备方法
CN112876067A (zh) * 2021-03-17 2021-06-01 中国科学院过程工程研究所 一种高硬度高杨氏模量氧化物高熵玻璃及其制备方法和用途
CN113698082B (zh) * 2021-09-10 2023-03-21 成都光明光电股份有限公司 微晶玻璃成型体的制造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD127795A1 (de) * 1976-08-26 1977-10-12 Werner Vogel Titandioxidhaltige glaskeramiken hoher mechanischer festigkeit
GB2172282A (en) * 1985-03-11 1986-09-17 English Electric Co Ltd Toughened glass-ceramics
EP0265045A1 (en) * 1986-10-24 1988-04-27 Corning Glass Works Refractory glass-ceramics containing enstatite

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US6245411B1 (en) * 1959-09-25 2001-06-12 Kabushiki Kaisha Ohara High rigidity glass-ceramic substrate for a magnetic information storage medium
JPS6452632A (en) 1987-05-07 1989-02-28 Asahi Glass Co Ltd Production of crystallized glass
JPH01239036A (ja) 1988-03-16 1989-09-25 F G K:Kk 高強度ガラス
JP2610033B2 (ja) 1988-03-18 1997-05-14 古河電気工業株式会社 酸化物系超電導成形体の製造方法
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
JP3126558B2 (ja) * 1993-08-19 2001-01-22 株式会社トクヤマ 結晶化ガラス
JP2759763B2 (ja) 1994-02-22 1998-05-28 株式会社オハラ コージェライト系結晶化ガラスおよびその製造方法
US5476821A (en) 1994-11-01 1995-12-19 Corning Incorporated High modulus glass-ceramics containing fine grained spinel-type crystals
US5532194A (en) * 1994-11-18 1996-07-02 Kabushiki Kaisya Ohara Cordierite glass-ceramic and method for manufacturing the same
US5763059A (en) 1995-03-31 1998-06-09 Kyocera Corporation Circuit board
US5491116A (en) 1995-04-03 1996-02-13 Corning Incorporated Fine-grained glass-ceramics
KR20000057173A (ko) * 1996-11-21 2000-09-15 알프레드 엘. 미첼슨 β-석영을 기초로 한 유리-세라믹
JP3011703B1 (ja) * 1998-02-26 2000-02-21 株式会社オハラ 情報磁気記憶媒体用高剛性ガラスセラミックス基板
JP4323597B2 (ja) * 1998-12-03 2009-09-02 Ｈｏｙａ株式会社 情報記録ディスク用結晶化ガラス及びその製造方法
JP3996294B2 (ja) * 1998-03-13 2007-10-24 Ｈｏｙａ株式会社 結晶化ガラスからなる情報記録媒体用基板及び情報記録媒体
JP4323598B2 (ja) * 1998-12-03 2009-09-02 Ｈｏｙａ株式会社 情報記録ディスク用結晶化ガラス
EP1577275B1 (en) * 1998-03-13 2008-12-17 Hoya Corporation Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass
JPH11278864A (ja) 1998-03-30 1999-10-12 Ngk Insulators Ltd 磁気ディスク基板用結晶化ガラス、磁気ディスク基板および磁気ディスク
JPH11278865A (ja) * 1998-03-30 1999-10-12 Ngk Insulators Ltd 磁気ディスク基板用結晶化ガラス、磁気ディスク用基板、磁気ディスクおよび磁気ディスク基板用結晶化ガラスの製造方法
JP4680347B2 (ja) * 1999-06-01 2011-05-11 株式会社オハラ 高剛性ガラスセラミックス基板
SG97155A1 (en) * 1999-07-07 2003-07-18 Hoya Corp Substrate for information recording medium and magnetic recording medium composed of crystallized glass
SG98415A1 (en) * 1999-07-07 2003-09-19 Hoya Corp Process for preparation of crystallized glass for information recording disk
US6627565B1 (en) * 1999-07-27 2003-09-30 Hoya Corporation Crystallized glass substrate for information recording medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD127795A1 (de) * 1976-08-26 1977-10-12 Werner Vogel Titandioxidhaltige glaskeramiken hoher mechanischer festigkeit
GB2172282A (en) * 1985-03-11 1986-09-17 English Electric Co Ltd Toughened glass-ceramics
EP0265045A1 (en) * 1986-10-24 1988-04-27 Corning Glass Works Refractory glass-ceramics containing enstatite

Also Published As

Publication number Publication date
ATE537127T1 (de) 2011-12-15
EP1067102A3 (en) 2001-10-31
EP1067102A2 (en) 2001-01-10
CN1230397C (zh) 2005-12-07
EP1067102B1 (en) 2011-12-14
US20040018929A1 (en) 2004-01-29
US20050164036A1 (en) 2005-07-28
CN1293162A (zh) 2001-05-02
US7015161B2 (en) 2006-03-21
US6905988B2 (en) 2005-06-14
US6627566B1 (en) 2003-09-30

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