SG10201608631VA - Glass substrate for magnetic disk and magnetic disk - Google Patents

Glass substrate for magnetic disk and magnetic disk

Info

Publication number
SG10201608631VA
SG10201608631VA SG10201608631VA SG10201608631VA SG10201608631VA SG 10201608631V A SG10201608631V A SG 10201608631VA SG 10201608631V A SG10201608631V A SG 10201608631VA SG 10201608631V A SG10201608631V A SG 10201608631VA SG 10201608631V A SG10201608631V A SG 10201608631VA
Authority
SG
Singapore
Prior art keywords
magnetic disk
glass substrate
disk
magnetic
glass
Prior art date
Application number
SG10201608631VA
Other languages
English (en)
Inventor
Masanori Tamaki
Takeyoshi Takahashi
Masaaki Ueda
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 SG10201608631VA publication Critical patent/SG10201608631VA/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
    • G11B5/74—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
    • 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
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
SG10201608631VA 2013-02-22 2014-02-24 Glass substrate for magnetic disk and magnetic disk SG10201608631VA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013033719 2013-02-22

Publications (1)

Publication Number Publication Date
SG10201608631VA true SG10201608631VA (en) 2016-12-29

Family

ID=51391409

Family Applications (2)

Application Number Title Priority Date Filing Date
SG10201608631VA SG10201608631VA (en) 2013-02-22 2014-02-24 Glass substrate for magnetic disk and magnetic disk
SG11201506619TA SG11201506619TA (en) 2013-02-22 2014-02-24 Glass substrate for magnetic disk and magnetic disk

Family Applications After (1)

Application Number Title Priority Date Filing Date
SG11201506619TA SG11201506619TA (en) 2013-02-22 2014-02-24 Glass substrate for magnetic disk and magnetic disk

Country Status (6)

Country Link
US (2) US9595284B2 (zh)
JP (2) JP5703430B2 (zh)
CN (2) CN105009212B (zh)
MY (2) MY172325A (zh)
SG (2) SG10201608631VA (zh)
WO (1) WO2014129633A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5574392B1 (ja) * 2012-09-28 2014-08-20 Ｈｏｙａ株式会社 磁気ディスク用ガラス基板、磁気ディスク
SG10201705086TA (en) 2012-12-29 2017-07-28 Hoya Corp Glass substrate for magnetic disk and magnetic disk
MY172325A (en) * 2013-02-22 2019-11-21 Hoya Corp Annular substrate, magnetic-disk substrate, method for manufacturing a magnetic-disk substrate, magnetic disk, method for manufacturing a magnetic disk, and hard disk apparatus
WO2014133148A1 (ja) 2013-03-01 2014-09-04 Hoya株式会社 磁気ディスク用ガラス基板および磁気ディスク
US10032472B2 (en) * 2014-03-31 2018-07-24 Hoya Corporation Magnetic-disk glass substrate
MY168096A (en) 2015-09-30 2018-10-11 Hoya Corp Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate
MY188163A (en) * 2015-12-28 2021-11-24 Hoya Corp Annular glass blank, method for manufacturing annular glass blank, method for manufacturing annular glass substrate, and method for manufacturing magnetic-disk glass substrate
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
JP6505959B1 (ja) 2017-09-29 2019-04-24 Hoya株式会社 ガラススペーサ及びハードディスクドライブ装置
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
KR20210059146A (ko) * 2019-11-14 2021-05-25 삼성디스플레이 주식회사 폴더블 유리 기판, 및 이를 포함하는 폴더블 표시 장치
JP7459725B2 (ja) 2020-08-27 2024-04-02 株式会社レゾナック ダミー基板、およびその製造方法
US11270724B1 (en) * 2021-03-04 2022-03-08 Western Digital Technologies, Inc. Glass substrates for heat assisted magnetic recording (HAMR) and methods and apparatus for use with the glass substrates

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Publication number Priority date Publication date Assignee Title
JP3140702B2 (ja) * 1996-12-20 2001-03-05 日本碍子株式会社 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
US7071132B2 (en) * 2000-07-07 2006-07-04 Kabushiki Kaisha Ohara Low expansion transparent glass ceramics
AU2003281794A1 (en) * 2002-08-06 2004-02-23 Matsushita Electric Industrial Co., Ltd. Optical disk medium and hub
JP4250385B2 (ja) * 2002-08-09 2009-04-08 Ｈｏｙａ株式会社 情報記録媒体用ガラス基板の製造方法、及び情報記録媒体用ガラス基板の研削装置
WO2005093720A1 (ja) * 2004-03-25 2005-10-06 Hoya Corporation 磁気ディスク用ガラス基板
JP2006099936A (ja) * 2004-08-30 2006-04-13 Hoya Corp 磁気ディスク用ガラス基板の製造方法、磁気ディスクの製造方法及びガラス基板用の円柱状ガラス母材
JP2007229912A (ja) * 2006-02-02 2007-09-13 Hoya Corp 磁気ディスク用ガラス基板の製造方法、磁気ディスク用ガラス基板、及び磁気ディスクの製造方法
WO2008041493A1 (fr) * 2006-09-29 2008-04-10 Hoya Corporation Procédé de fabrication d'un substrat en verre pour disque magnétique, procédé de fabrication d'un disque magnétique, et appareil de polissage d'un substrat en verre pour disque magnétique
JP5344806B2 (ja) * 2006-09-29 2013-11-20 Ｈｏｙａ株式会社 磁気ディスク用ガラス基板の製造方法、磁気ディスク用ガラス基板研磨装置および磁気ディスクの製造方法
MY163763A (en) * 2007-02-20 2017-10-31 Hoya Corp Magnetic disk substrate, magnetic disk, and magnetic disk device
JP2008217918A (ja) 2007-03-06 2008-09-18 Konica Minolta Opto Inc 磁気記録媒体用ガラス基板及び磁気記録媒体
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
JP4246791B2 (ja) * 2007-05-30 2009-04-02 東洋鋼鈑株式会社 磁気ディスク用ガラス基板の表面仕上げ方法
JP4748115B2 (ja) * 2007-06-12 2011-08-17 コニカミノルタオプト株式会社 磁気記録媒体用ガラス基板及び磁気記録媒体
US8241769B2 (en) 2007-12-28 2012-08-14 Hoya Corporation Glass substrate for a magnetic disk, magnetic disk and method of manufacturing a magnetic disk
WO2010041537A1 (ja) 2008-10-08 2010-04-15 コニカミノルタオプト株式会社 ガラス基板の製造方法、および磁気記録媒体の製造方法
WO2011096310A1 (ja) * 2010-02-03 2011-08-11 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、情報記録媒体用ガラス基板の製造方法及び情報記録媒体
JP2011198428A (ja) * 2010-03-23 2011-10-06 Hoya Corp 磁気ディスク用ガラス基板およびその評価方法
JP5844610B2 (ja) * 2010-11-02 2016-01-20 Hoya株式会社 磁気ディスク用ガラス基板の製造方法
JP5737043B2 (ja) * 2011-07-29 2015-06-17 旭硝子株式会社 基板用ガラスおよびガラス基板
JP5126401B1 (ja) * 2011-09-28 2013-01-23 旭硝子株式会社 磁気記録媒体用ガラス基板
JP5592037B1 (ja) * 2012-09-28 2014-09-17 Ｈｏｙａ株式会社 磁気ディスク用ガラス基板、磁気ディスク
JP5574392B1 (ja) * 2012-09-28 2014-08-20 Ｈｏｙａ株式会社 磁気ディスク用ガラス基板、磁気ディスク
SG10201705086TA (en) * 2012-12-29 2017-07-28 Hoya Corp Glass substrate for magnetic disk and magnetic disk
MY172325A (en) * 2013-02-22 2019-11-21 Hoya Corp Annular substrate, magnetic-disk substrate, method for manufacturing a magnetic-disk substrate, magnetic disk, method for manufacturing a magnetic disk, and hard disk apparatus
WO2014133148A1 (ja) * 2013-03-01 2014-09-04 Hoya株式会社 磁気ディスク用ガラス基板および磁気ディスク

Also Published As

Publication number Publication date
MY172325A (en) 2019-11-21
US20170169848A1 (en) 2017-06-15
SG11201506619TA (en) 2015-09-29
CN108847256A (zh) 2018-11-20
US10431252B2 (en) 2019-10-01
US9595284B2 (en) 2017-03-14
CN105009212A (zh) 2015-10-28
MY166439A (en) 2018-06-27
WO2014129633A1 (ja) 2014-08-28
US20150371673A1 (en) 2015-12-24
JPWO2014129633A1 (ja) 2017-02-02
JP6294843B2 (ja) 2018-03-14
CN105009212B (zh) 2018-07-20
CN108847256B (zh) 2020-04-03
JP5703430B2 (ja) 2015-04-22
JP2015135720A (ja) 2015-07-27

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