MY196313A - Substrate For Magnetic Disks, and Magnetic Disk - Google Patents

Substrate For Magnetic Disks, and Magnetic Disk

Info

Publication number
MY196313A
MY196313A MYPI2019005195A MYPI2019005195A MY196313A MY 196313 A MY196313 A MY 196313A MY PI2019005195 A MYPI2019005195 A MY PI2019005195A MY PI2019005195 A MYPI2019005195 A MY PI2019005195A MY 196313 A MY196313 A MY 196313A
Authority
MY
Malaysia
Prior art keywords
substrate
magnetic
magnetic disk
film
disks
Prior art date
Application number
MYPI2019005195A
Other languages
English (en)
Inventor
Osakabe Kinobu
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 MY196313A publication Critical patent/MY196313A/en

Links

Classifications

    • 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

Landscapes

  • 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)
MYPI2019005195A 2017-06-30 2018-07-02 Substrate For Magnetic Disks, and Magnetic Disk MY196313A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017129613 2017-06-30
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

Publications (1)

Publication Number Publication Date
MY196313A true MY196313A (en) 2023-03-24

Family

ID=64742939

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2019005195A MY196313A (en) 2017-06-30 2018-07-02 Substrate For Magnetic Disks, and Magnetic Disk

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=)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (37)

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JPS5939350B2 (ja) 1978-09-26 1984-09-22 株式会社ダイフク 搬送台車駆動装置
US4882236A (en) * 1988-02-10 1989-11-21 Olin Corporation Rigid magnetic recording disks and method of producing same
JPH0757233A (ja) * 1993-08-19 1995-03-03 Hitachi Ltd 磁気記録媒体
US5626943A (en) * 1994-06-02 1997-05-06 The Carborundum Company Ultra-smooth ceramic substrates and magnetic data storage media prepared therefrom
JP3394108B2 (ja) 1995-02-03 2003-04-07 株式会社日立製作所 磁気記憶装置及び多層磁性層磁気記録媒体
US5759681A (en) 1995-02-03 1998-06-02 Hitachi, Ltd. Magnetic recording medium and magnetic recording system using the same
US5747135A (en) * 1995-12-08 1998-05-05 Aluminum Company Of America Thin film pretreatment for memory disks and associated methods
JPH09198640A (ja) * 1996-01-16 1997-07-31 Kobe Steel Ltd 磁気ディスク
JPH10334445A (ja) * 1997-06-02 1998-12-18 Kobe Steel Ltd 磁気ディスク用基板
US6383404B1 (en) * 1998-08-19 2002-05-07 Hoya Corporation Glass substrate for magnetic recording medium, magnetic recording medium, and method of manufacturing the same
US6316097B1 (en) * 1998-09-28 2001-11-13 Seagate Technology Llc Electroless plating process for alternative memory disk substrates
JP2003016633A (ja) 2001-06-28 2003-01-17 Asahi Glass Co Ltd 磁気ディスク用ガラス基板及びその製造方法
JP2003263713A (ja) * 2002-03-08 2003-09-19 Canon Inc 円筒状磁気記録媒体およびその作製方法
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
US7573674B1 (en) * 2004-12-23 2009-08-11 Maxtor Corporation Storage disk having increased damping characteristics in a disk drive
US7564181B2 (en) * 2005-04-08 2009-07-21 Eastman Kodak Company Performance enhancement layer for OLED devices
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
JP2007066390A (ja) * 2005-08-30 2007-03-15 Konica Minolta Opto Inc 磁気記録媒体用基板、及び磁気記録媒体用基板の製造方法
US20090117411A1 (en) * 2005-12-19 2009-05-07 Showa Denko K.K. Magnetic disk substrate and magnetic disk thereof
JP4665886B2 (ja) * 2006-10-27 2011-04-06 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体、垂直磁気記録媒体用基板、および、それらの製造方法
JP5029952B2 (ja) * 2007-09-06 2012-09-19 富士電機株式会社 ガラス基板およびその製造方法、ならびに当該ガラス基板を用いた磁気ディスク
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
JP4729114B2 (ja) 2009-03-18 2011-07-20 株式会社東芝 磁気記録媒体の製造方法
CA2804212C (en) * 2010-07-09 2018-01-02 Micro Motion, Inc. A vibrating meter including an improved meter case
JP5687893B2 (ja) 2010-12-17 2015-03-25 Hoya株式会社 記録媒体用ガラス基板
JP5029777B1 (ja) 2011-11-22 2012-09-19 旭硝子株式会社 磁気記録媒体用ガラス基板、および該磁気記録媒体用ガラス基板を用いた磁気記録媒体
SG11201405695XA (en) * 2012-03-30 2014-12-30 Hoya Corp Magnetic-disk glass substrate, magnetic disk, magnetic-disk drive device
JP6014385B2 (ja) 2012-05-14 2016-10-25 昭和電工株式会社 磁気記録媒体及び磁気記録再生装置
SG10201701244VA (en) * 2013-06-27 2017-04-27 Hoya Corp Disk-shaped glass substrate, magnetic-disk glass substrate, method for manufacturing magnetic-disk glass substrate, and magnetic disk
WO2015152316A1 (ja) * 2014-03-31 2015-10-08 Hoya株式会社 磁気ディスク用ガラス基板
JP5915718B1 (ja) 2014-11-07 2016-05-11 旭硝子株式会社 磁気ディスク用ガラス基板及び磁気ディスク
JP5939350B1 (ja) 2015-12-28 2016-06-22 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
TWI755466B (zh) 2016-12-28 2022-02-21 日商東洋鋼鈑股份有限公司 硬碟用基板及使用其之硬碟裝置
JP6832179B2 (ja) * 2017-02-03 2021-02-24 昭和電工株式会社 磁気記録媒体用基板およびハードディスクドライブ
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

Also Published As

Publication number Publication date
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
CN113362863B (zh) 2022-09-30
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
CN113362863A (zh) 2021-09-07
US20200027481A1 (en) 2020-01-23
PH12021552253A1 (en) 2023-10-23

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