CN113362863B - 磁盘用基板和磁盘 - Google Patents

磁盘用基板和磁盘 Download PDF

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Publication number
CN113362863B
CN113362863B CN202110659616.XA CN202110659616A CN113362863B CN 113362863 B CN113362863 B CN 113362863B CN 202110659616 A CN202110659616 A CN 202110659616A CN 113362863 B CN113362863 B CN 113362863B
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thickness
substrate
magnetic disk
film
outer peripheral
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CN202110659616.XA
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Chinese (zh)
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CN113362863A (zh
Inventor
越阪部基延
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Hoya Corp
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Hoya Corp
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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
    • G11B5/62—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
    • G11B5/62—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
    • 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
    • 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
    • G11B5/73913—Composites or coated 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
    • G11B5/62—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
    • G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy 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
    • G11B5/62—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
    • G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
    • G11B5/73919—Aluminium or titanium elemental or alloy substrates

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Ceramic Engineering (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
CN202110659616.XA 2017-06-30 2018-07-02 磁盘用基板和磁盘 Active CN113362863B (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2017-129613 2017-06-30
JP2017129613 2017-06-30
CN201880018389.9A CN110431627B (zh) 2017-06-30 2018-07-02 磁盘用基板和磁盘
PCT/JP2018/025104 WO2019004484A1 (ja) 2017-06-30 2018-07-02 磁気ディスク用基板及び磁気ディスク

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201880018389.9A Division CN110431627B (zh) 2017-06-30 2018-07-02 磁盘用基板和磁盘

Publications (2)

Publication Number Publication Date
CN113362863A CN113362863A (zh) 2021-09-07
CN113362863B true CN113362863B (zh) 2022-09-30

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
CN202110659616.XA Active CN113362863B (zh) 2017-06-30 2018-07-02 磁盘用基板和磁盘
CN201880018389.9A Active CN110431627B (zh) 2017-06-30 2018-07-02 磁盘用基板和磁盘

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201880018389.9A Active CN110431627B (zh) 2017-06-30 2018-07-02 磁盘用基板和磁盘

Country Status (7)

Country Link
US (4) US11152026B2 (https=)
JP (4) JP6467118B1 (https=)
CN (2) CN113362863B (https=)
MY (1) MY196313A (https=)
PH (2) PH12019502156B1 (https=)
SG (1) SG11201908016WA (https=)
WO (1) WO2019004484A1 (https=)

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US11031036B2 (en) * 2017-03-31 2021-06-08 Hoya Corporation Non-magnetic substrate for magnetic disk, and magnetic disk
US11152026B2 (en) * 2017-06-30 2021-10-19 Hoya Corporation Substrate for magnetic disks, and magnetic disk
JP6895918B2 (ja) * 2018-03-23 2021-06-30 古河電気工業株式会社 磁気ディスク用アルミニウム合金基板、ディスク駆動装置、及び磁気ディスク用アルミニウム合金基板の製造方法
MY208527A (en) 2018-08-07 2025-05-14 Hoya Corp Substrate for magnetic disk and magnetic disk
JP7077248B2 (ja) * 2019-02-07 2022-05-30 株式会社東芝 ディスク装置
US20210090601A1 (en) 2019-09-25 2021-03-25 Western Digital Technologies, Inc. Magnetic recording apparatus comprising disk with reduced thickness and reduced disk flatness
CN115176310A (zh) * 2020-03-06 2022-10-11 豪雅株式会社 玻璃间隔件的制造方法、玻璃间隔件和硬盘驱动器装置
JP7037600B2 (ja) 2020-07-03 2022-03-16 株式会社Uacj 磁気ディスク用基板及び当該磁気ディスク用基板を用いた磁気ディスク
CN120937077A (zh) * 2023-03-31 2025-11-11 豪雅株式会社 信息记录介质用盘、盘中间体及信息记录介质用基板
WO2025150557A1 (ja) * 2024-01-11 2025-07-17 株式会社Uacj 磁気ディスク用ディスクブランク及び磁気ディスク

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JP2009230811A (ja) * 2008-03-24 2009-10-08 Konica Minolta Opto Inc 金型部材
CN105164751A (zh) * 2013-06-27 2015-12-16 Hoya株式会社 圆盘状玻璃基板、磁盘用玻璃基板、磁盘用玻璃基板的制造方法及磁盘
CN106030709A (zh) * 2014-03-31 2016-10-12 Hoya株式会社 磁盘用玻璃基板

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JPH0757233A (ja) * 1993-08-19 1995-03-03 Hitachi Ltd 磁気記録媒体
JP2005322364A (ja) * 2004-05-11 2005-11-17 Fuji Electric Device Technology Co Ltd 垂直磁気記録媒体用ディスク基板、該基板を用いた垂直磁気記録媒体、および、それらの製造方法
JP2006302358A (ja) * 2005-04-18 2006-11-02 Kobe Steel Ltd 磁気記録媒体用Ａｌ合金基板および磁気記録媒体
WO2009096217A1 (ja) * 2008-01-29 2009-08-06 Konica Minolta Opto, Inc. 磁気記録媒体用基板の製造方法、及び磁気記録媒体
JP2009230811A (ja) * 2008-03-24 2009-10-08 Konica Minolta Opto Inc 金型部材
CN105164751A (zh) * 2013-06-27 2015-12-16 Hoya株式会社 圆盘状玻璃基板、磁盘用玻璃基板、磁盘用玻璃基板的制造方法及磁盘
CN106030709A (zh) * 2014-03-31 2016-10-12 Hoya株式会社 磁盘用玻璃基板

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US11694718B2 (en) 2023-07-04
SG11201908016WA (en) 2019-09-27
JP2022120158A (ja) 2022-08-17
CN110431627A (zh) 2019-11-08
JP7595713B2 (ja) 2024-12-06
JP6467118B1 (ja) 2019-02-06
US20250095682A1 (en) 2025-03-20
JP2023133503A (ja) 2023-09-22
JP7326542B2 (ja) 2023-08-15
JPWO2019004484A1 (ja) 2019-06-27
US12190923B2 (en) 2025-01-07
PH12019502156B1 (en) 2024-06-14
US20210407544A1 (en) 2021-12-30
US11152026B2 (en) 2021-10-19
JP2019053813A (ja) 2019-04-04
JP7092689B2 (ja) 2022-06-28
WO2019004484A1 (ja) 2019-01-03
US20230298623A1 (en) 2023-09-21
PH12019502156A1 (en) 2020-07-06
CN110431627B (zh) 2021-07-02
MY196313A (en) 2023-03-24
CN113362863A (zh) 2021-09-07
US20200027481A1 (en) 2020-01-23
PH12021552253A1 (en) 2023-10-23

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