JP3989988B2 - 情報記録媒体用基板及び磁気ディスク、並びにその製造方法 - Google Patents

情報記録媒体用基板及び磁気ディスク、並びにその製造方法 Download PDF

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Publication number
JP3989988B2
JP3989988B2 JP23393596A JP23393596A JP3989988B2 JP 3989988 B2 JP3989988 B2 JP 3989988B2 JP 23393596 A JP23393596 A JP 23393596A JP 23393596 A JP23393596 A JP 23393596A JP 3989988 B2 JP3989988 B2 JP 3989988B2
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JP
Japan
Prior art keywords
glass
sio
substrate
mol
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 - Lifetime
Application number
JP23393596A
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English (en)
Japanese (ja)
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JPH1081540A5 (enExample
JPH1081540A (ja
Inventor
学禄 鄒
久良 虎溪
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 JP23393596A priority Critical patent/JP3989988B2/ja
Priority to US08/923,142 priority patent/US6063470A/en
Publication of JPH1081540A publication Critical patent/JPH1081540A/ja
Publication of JPH1081540A5 publication Critical patent/JPH1081540A5/ja
Application granted granted Critical
Publication of JP3989988B2 publication Critical patent/JP3989988B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2531—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising glass
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Glass Compositions (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP23393596A 1996-09-04 1996-09-04 情報記録媒体用基板及び磁気ディスク、並びにその製造方法 Expired - Lifetime JP3989988B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP23393596A JP3989988B2 (ja) 1996-09-04 1996-09-04 情報記録媒体用基板及び磁気ディスク、並びにその製造方法
US08/923,142 US6063470A (en) 1996-09-04 1997-09-04 Substrate for information recording media and magnetic disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23393596A JP3989988B2 (ja) 1996-09-04 1996-09-04 情報記録媒体用基板及び磁気ディスク、並びにその製造方法

Publications (3)

Publication Number Publication Date
JPH1081540A JPH1081540A (ja) 1998-03-31
JPH1081540A5 JPH1081540A5 (enExample) 2005-04-28
JP3989988B2 true JP3989988B2 (ja) 2007-10-10

Family

ID=16962926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23393596A Expired - Lifetime JP3989988B2 (ja) 1996-09-04 1996-09-04 情報記録媒体用基板及び磁気ディスク、並びにその製造方法

Country Status (2)

Country Link
US (1) US6063470A (enExample)
JP (1) JP3989988B2 (enExample)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5997977A (en) * 1997-06-05 1999-12-07 Hoya Corporation Information recording substrate and information recording medium prepared from the substrate
WO1998055993A1 (en) * 1997-06-05 1998-12-10 Hoya Corporation Substrate for information recording media
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
US6294490B1 (en) * 1998-03-13 2001-09-25 Hoya Corporation Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate
US6477011B1 (en) * 1998-08-24 2002-11-05 International Business Machines Corporation Magnetic recording device having an improved slider
CN1397065A (zh) 2000-01-05 2003-02-12 斯科特玻璃技术有限公司 用于磁介质的玻璃基板和基于此种玻璃基板的磁介质
JP4300676B2 (ja) * 2000-04-03 2009-07-22 コニカミノルタオプト株式会社 ガラス組成物
JP4273624B2 (ja) * 2000-04-03 2009-06-03 コニカミノルタオプト株式会社 ガラス組成物
JP2001287967A (ja) * 2000-04-03 2001-10-16 Minolta Co Ltd ガラス組成
JP2001287931A (ja) * 2000-04-03 2001-10-16 Minolta Co Ltd ガラス組成
JP4273623B2 (ja) * 2000-04-03 2009-06-03 コニカミノルタオプト株式会社 ガラス組成物
JP4224925B2 (ja) * 2000-04-03 2009-02-18 コニカミノルタオプト株式会社 ガラス組成物
JP4273625B2 (ja) * 2000-04-03 2009-06-03 コニカミノルタオプト株式会社 ガラス組成物
JP2001287934A (ja) * 2000-04-03 2001-10-16 Minolta Co Ltd ガラス組成
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
US6767584B2 (en) * 2002-05-13 2004-07-27 International Business Machines Corporation Disk substrate with monosized microbumps
FR2856055B1 (fr) * 2003-06-11 2007-06-08 Saint Gobain Vetrotex Fils de verre aptes a renforcer des matieres organiques et/ou inorganiques, composites les renfermant et composition utilisee
US7882616B1 (en) * 2004-09-02 2011-02-08 Seagate Technology Llc Manufacturing single-sided storage media
FR2879591B1 (fr) * 2004-12-16 2007-02-09 Saint Gobain Vetrotex Fils de verre aptes a renforcer des matieres organiques et/ou inorganiques
US8338319B2 (en) * 2008-12-22 2012-12-25 Ocv Intellectual Capital, Llc Composition for high performance glass fibers and fibers formed therewith
US9656903B2 (en) 2005-11-04 2017-05-23 Ocv Intellectual Capital, Llc Method of manufacturing high strength glass fibers in a direct melt operation and products formed there from
US7799713B2 (en) * 2005-11-04 2010-09-21 Ocv Intellectual Capital, Llc Composition for high performance glass, high performance glass fibers and articles therefrom
US8586491B2 (en) 2005-11-04 2013-11-19 Ocv Intellectual Capital, Llc Composition for high performance glass, high performance glass fibers and articles therefrom
US9187361B2 (en) * 2005-11-04 2015-11-17 Ocv Intellectual Capital, Llc Method of manufacturing S-glass fibers in a direct melt operation and products formed there from
US7823417B2 (en) * 2005-11-04 2010-11-02 Ocv Intellectual Capital, Llc Method of manufacturing high performance glass fibers in a refractory lined melter and fiber formed thereby
JP5263152B2 (ja) * 2007-03-23 2013-08-14 旭硝子株式会社 データ記憶媒体用基板ガラスおよびガラス基板
USD615218S1 (en) 2009-02-10 2010-05-04 Owens Corning Intellectual Capital, Llc Shingle ridge vent
USD628718S1 (en) 2008-10-31 2010-12-07 Owens Corning Intellectual Capital, Llc Shingle ridge vent
US8252707B2 (en) * 2008-12-24 2012-08-28 Ocv Intellectual Capital, Llc Composition for high performance glass fibers and fibers formed therewith
US10370855B2 (en) 2012-10-10 2019-08-06 Owens Corning Intellectual Capital, Llc Roof deck intake vent
USD710985S1 (en) 2012-10-10 2014-08-12 Owens Corning Intellectual Capital, Llc Roof vent
CN109928616A (zh) * 2017-12-15 2019-06-25 成都光明光电股份有限公司 玻璃组合物
US20230110894A1 (en) * 2021-10-01 2023-04-13 Western Digital Technologies, Inc. Magnetic recording disk with high internal stress to reduce disk deflections from shock forces and methods for use with the disk

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5969442A (ja) * 1982-10-14 1984-04-19 Natl Inst For Res In Inorg Mater 希土類酸化物含有アルミノ珪酸塩ガラス
JPS5969440A (ja) * 1982-10-14 1984-04-19 Natl Inst For Res In Inorg Mater 希土類酸化物含有アルミノけい酸塩ガラス
JPS6144732A (ja) * 1984-08-06 1986-03-04 Toshiba Corp 基板用ガラス
JPS61236631A (ja) * 1985-04-10 1986-10-21 Ohara Inc 耐火・耐熱性ガラス
JPS6243819A (ja) * 1985-08-22 1987-02-25 Tdk Corp 磁気記録媒体
JPS62138342A (ja) * 1985-12-12 1987-06-22 Natl Inst For Res In Inorg Mater 耐熱性光学ガラス
JPS63162545A (ja) * 1986-12-26 1988-07-06 Central Glass Co Ltd 透光性結晶質ガラス
JPH01239036A (ja) * 1988-03-16 1989-09-25 F G K:Kk 高強度ガラス
JPH0719372B2 (ja) * 1990-03-23 1995-03-06 株式会社神戸製鋼所 磁気記録媒体の製造方法
US5391522A (en) * 1993-05-19 1995-02-21 Kabushiki Kaisya Ohara Glass-ceramic for magnetic disks and method for manufacturing the same
EP0634374A1 (en) * 1993-07-12 1995-01-18 Corning Incorporated Fine-grained canasite glass-ceramics for making memory storage devices
KR100402511B1 (ko) * 1994-10-13 2004-03-20 쌩-고벵 글래스 프랑스 강화된유리기판및이를포함하는경질자기디스크
US5599754A (en) * 1994-10-14 1997-02-04 Asahi Glass Company Ltd. Glass composition for a substrate, and substrate for plasma display made thereof
JP3117612B2 (ja) * 1994-12-15 2000-12-18 株式会社オハラ 高膨張耐熱ガラス

Also Published As

Publication number Publication date
JPH1081540A (ja) 1998-03-31
US6063470A (en) 2000-05-16

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