CN104603875B - 磁盘用玻璃基板、磁盘 - Google Patents

磁盘用玻璃基板、磁盘 Download PDF

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Publication number
CN104603875B
CN104603875B CN201380044545.6A CN201380044545A CN104603875B CN 104603875 B CN104603875 B CN 104603875B CN 201380044545 A CN201380044545 A CN 201380044545A CN 104603875 B CN104603875 B CN 104603875B
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China
Prior art keywords
glass substrate
magnetic disk
magnetic
curvature
radius
Prior art date
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CN201380044545.6A
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English (en)
Chinese (zh)
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CN104603875A (zh
Inventor
高桥武良
植田政明
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Hoya Corp
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Hoya Corp
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Priority to CN201610412698.7A priority Critical patent/CN106098085B/zh
Publication of CN104603875A publication Critical patent/CN104603875A/zh
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Publication of CN104603875B publication Critical patent/CN104603875B/zh
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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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk 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

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)
CN201380044545.6A 2012-09-28 2013-09-30 磁盘用玻璃基板、磁盘 Active CN104603875B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610412698.7A CN106098085B (zh) 2012-09-28 2013-09-30 磁盘用玻璃基板、磁盘以及圆环状的玻璃坯板

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012218706 2012-09-28
JPJP2012-218706 2012-09-28
PCT/JP2013/076614 WO2014051152A1 (ja) 2012-09-28 2013-09-30 磁気ディスク用ガラス基板、磁気ディスク

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201610412698.7A Division CN106098085B (zh) 2012-09-28 2013-09-30 磁盘用玻璃基板、磁盘以及圆环状的玻璃坯板

Publications (2)

Publication Number Publication Date
CN104603875A CN104603875A (zh) 2015-05-06
CN104603875B true CN104603875B (zh) 2016-07-06

Family

ID=50388536

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201380044545.6A Active CN104603875B (zh) 2012-09-28 2013-09-30 磁盘用玻璃基板、磁盘
CN201610412698.7A Active CN106098085B (zh) 2012-09-28 2013-09-30 磁盘用玻璃基板、磁盘以及圆环状的玻璃坯板

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201610412698.7A Active CN106098085B (zh) 2012-09-28 2013-09-30 磁盘用玻璃基板、磁盘以及圆环状的玻璃坯板

Country Status (6)

Country Link
US (3) US9583128B2 (enExample)
JP (2) JP5574392B1 (enExample)
CN (2) CN104603875B (enExample)
MY (2) MY198411A (enExample)
SG (2) SG11201501457VA (enExample)
WO (1) WO2014051152A1 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY198411A (en) * 2012-09-28 2023-08-28 Hoya Corp Magnetic-Disk Glass Substrate and Magnetic Disk
US9595283B2 (en) * 2012-12-29 2017-03-14 Hoya Corporation Glass substrate for magnetic disk and magnetic disk
CN108847256B (zh) * 2013-02-22 2020-04-03 Hoya株式会社 圆环状基板、磁盘用基板及其制造方法、磁盘及其制造方法
US9595286B2 (en) * 2013-03-01 2017-03-14 Hoya Corporation Glass substrate for magnetic disk and magnetic disk
US10032472B2 (en) * 2014-03-31 2018-07-24 Hoya Corporation Magnetic-disk glass substrate
JP6020754B1 (ja) * 2015-12-25 2016-11-02 旭硝子株式会社 磁気記録媒体用ガラス基板、磁気記録媒体
WO2020021705A1 (ja) * 2018-07-27 2020-01-30 Hoya株式会社 ガラス基板の製造方法及び磁気ディスクの製造方法
JP6975862B2 (ja) 2018-08-07 2021-12-01 Hoya株式会社 磁気ディスク用基板及び磁気ディスク
JP7467759B2 (ja) * 2021-02-24 2024-04-15 Hoya株式会社 磁気ディスク用基板、磁気ディスク、円環形状基板、および磁気ディスク用基板の製造方法
US11664050B2 (en) 2021-10-05 2023-05-30 Western Digital Technologies, Inc. Tuned edge profile of a disk substrate for use in magnetic recording media

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1385833A (zh) * 2001-05-14 2002-12-18 日本板硝子株式会社 磁记录介质用玻璃基板及其制造方法
CN101010734A (zh) * 2004-08-30 2007-08-01 昭和电工株式会社 用于磁记录介质的玻璃基底以及磁记录介质
JP2008094982A (ja) * 2006-10-12 2008-04-24 Kao Corp メモリーハードディスク基板用研磨液組成物
JP2009134802A (ja) * 2007-11-29 2009-06-18 Furukawa Electric Co Ltd:The 磁気ディスク用ガラス基板および磁気ディスク装置
JP2009157968A (ja) * 2007-12-25 2009-07-16 Hoya Corp 磁気ディスク用ガラス基板の製造方法
CN101853670A (zh) * 2009-03-30 2010-10-06 Hoya株式会社 磁盘用基板以及其制造方法
JP4994213B2 (ja) * 2007-12-21 2012-08-08 Ｈｏｙａ株式会社 磁気ディスク用ガラス基板、磁気ディスクおよび磁気ディスク用ガラス基板の製造方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19850744C1 (de) * 1998-11-04 2000-10-05 Schott Glas Verwendung von Gläsern zur Herstellung von Festplattensubstraten
JP2002100031A (ja) * 2000-09-26 2002-04-05 Hoya Corp 磁気記録媒体用ガラス基板、及び磁気記録媒体
JP2006079800A (ja) * 2004-08-11 2006-03-23 Showa Denko Kk 磁気記録媒体用シリコン基板及びその製造方法並びに磁気記録媒体
JP2006092722A (ja) * 2004-08-27 2006-04-06 Showa Denko Kk 磁気ディスク用基板および磁気ディスクの製造方法
JP2006099945A (ja) * 2004-08-30 2006-04-13 Showa Denko Kk 磁気記録媒体用ガラス基板および磁気記録媒体
JP4545714B2 (ja) * 2005-07-08 2010-09-15 昭和電工株式会社 磁気記録媒体並びに磁気記録再生装置
SG10201501752PA (en) * 2007-02-20 2015-05-28 Hoya Corp Magnetic disc substrate, magnetic disc, and magnetic disc device
CN101611444B (zh) * 2007-02-20 2012-10-10 Hoya株式会社 磁盘用基板、磁盘以及磁盘装置
JP4952311B2 (ja) 2007-03-14 2012-06-13 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磁気記録媒体
JP4860580B2 (ja) * 2007-09-07 2012-01-25 Ｈｏｙａ株式会社 磁気ディスク用基板及び磁気ディスク
MY198411A (en) * 2012-09-28 2023-08-28 Hoya Corp Magnetic-Disk Glass Substrate and Magnetic Disk
US9595283B2 (en) * 2012-12-29 2017-03-14 Hoya Corporation Glass substrate for magnetic disk and magnetic disk
CN108847256B (zh) * 2013-02-22 2020-04-03 Hoya株式会社 圆环状基板、磁盘用基板及其制造方法、磁盘及其制造方法
US9595286B2 (en) * 2013-03-01 2017-03-14 Hoya Corporation Glass substrate for magnetic disk and magnetic disk

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1385833A (zh) * 2001-05-14 2002-12-18 日本板硝子株式会社 磁记录介质用玻璃基板及其制造方法
CN101010734A (zh) * 2004-08-30 2007-08-01 昭和电工株式会社 用于磁记录介质的玻璃基底以及磁记录介质
JP2008094982A (ja) * 2006-10-12 2008-04-24 Kao Corp メモリーハードディスク基板用研磨液組成物
JP2009134802A (ja) * 2007-11-29 2009-06-18 Furukawa Electric Co Ltd:The 磁気ディスク用ガラス基板および磁気ディスク装置
JP4994213B2 (ja) * 2007-12-21 2012-08-08 Ｈｏｙａ株式会社 磁気ディスク用ガラス基板、磁気ディスクおよび磁気ディスク用ガラス基板の製造方法
JP2009157968A (ja) * 2007-12-25 2009-07-16 Hoya Corp 磁気ディスク用ガラス基板の製造方法
CN101853670A (zh) * 2009-03-30 2010-10-06 Hoya株式会社 磁盘用基板以及其制造方法

Also Published As

Publication number Publication date
MY171392A (en) 2019-10-10
CN106098085B (zh) 2019-07-02
MY198411A (en) 2023-08-28
SG10201605879PA (en) 2016-08-30
SG11201501457VA (en) 2015-04-29
JP2014160539A (ja) 2014-09-04
JP6089001B2 (ja) 2017-03-01
US10290315B2 (en) 2019-05-14
JPWO2014051152A1 (ja) 2016-08-25
US9583128B2 (en) 2017-02-28
US20150262604A1 (en) 2015-09-17
US20170140785A1 (en) 2017-05-18
US11094344B2 (en) 2021-08-17
JP5574392B1 (ja) 2014-08-20
CN106098085A (zh) 2016-11-09
CN104603875A (zh) 2015-05-06
WO2014051152A1 (ja) 2014-04-03
US20190221233A1 (en) 2019-07-18

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