SG11201709624VA - Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate - Google Patents

Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate

Info

Publication number
SG11201709624VA
SG11201709624VA SG11201709624VA SG11201709624VA SG11201709624VA SG 11201709624V A SG11201709624V A SG 11201709624VA SG 11201709624V A SG11201709624V A SG 11201709624VA SG 11201709624V A SG11201709624V A SG 11201709624VA SG 11201709624V A SG11201709624V A SG 11201709624VA
Authority
SG
Singapore
Prior art keywords
glass substrate
magnetic
disk glass
manufacturing
disk
Prior art date
Application number
SG11201709624VA
Other languages
English (en)
Inventor
Shuhei Azuma
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 SG11201709624VA publication Critical patent/SG11201709624VA/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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
  • Glass Compositions (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Surface Treatment Of Glass (AREA)
SG11201709624VA 2015-09-30 2016-09-30 Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate SG11201709624VA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015195128 2015-09-30
PCT/JP2016/079037 WO2017057686A1 (ja) 2015-09-30 2016-09-30 磁気ディスク用ガラス基板、磁気ディスク、ガラス基板中間体、及び磁気ディスク用ガラス基板の製造方法

Publications (1)

Publication Number Publication Date
SG11201709624VA true SG11201709624VA (en) 2017-12-28

Family

ID=58423694

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201709624VA SG11201709624VA (en) 2015-09-30 2016-09-30 Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate

Country Status (6)

Country Link
US (3) US10720180B2 (https=)
JP (2) JP6106813B1 (https=)
CN (2) CN110503983B (https=)
MY (1) MY168096A (https=)
SG (1) SG11201709624VA (https=)
WO (1) WO2017057686A1 (https=)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9697860B2 (en) * 2012-09-28 2017-07-04 Hoya Corporation Magnetic-disk glass substrate, magnetic disk and method for manufacturing magnetic-disk glass substrate
JP6106813B1 (ja) * 2015-09-30 2017-04-05 Hoya株式会社 磁気ディスク用ガラス基板、磁気ディスク、ガラス基板中間体、及び磁気ディスク用ガラス基板の製造方法
JP6695318B2 (ja) * 2017-12-27 2020-05-20 Hoya株式会社 円盤状ガラス基板の製造方法、薄板ガラス基板の製造方法、導光板の製造方法及び円盤状ガラス基板
JP7533100B2 (ja) * 2020-10-07 2024-08-14 住友金属鉱山株式会社 ウェハーの汚染検知方法
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
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
WO2022209372A1 (ja) * 2021-03-30 2022-10-06 ソニーグループ株式会社 磁気記録媒体

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0785463A (ja) * 1993-09-20 1995-03-31 A G Technol Kk 磁気ディスク
JPH07244947A (ja) 1994-03-08 1995-09-19 Hitachi Ltd 磁気ディスク装置、磁気ディスクおよび磁気ディスクの製造方法
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
JP3359304B2 (ja) 1998-08-19 2002-12-24 ホーヤ株式会社 磁気記録媒体用ガラス基板、磁気記録媒体及びそれらの製造方法
US6440531B1 (en) * 1999-05-13 2002-08-27 Nippon Sheet Glass Co., Ltd Hydrofluoric acid etched substrate for information recording medium
US6509111B1 (en) * 1999-09-24 2003-01-21 Hitachi, Ltd. Magnetic recording media and magnetic disk apparatus
US6706427B2 (en) * 1999-12-21 2004-03-16 Hoya Corporation Management technique of friction coefficient based on surface roughness, substrate for information recording medium, information recording medium and manufacture method thereof
US6852432B2 (en) * 2000-06-30 2005-02-08 Hitachi, Ltd. Magnetic recording media and magnetic disk apparatus
JP3734745B2 (ja) * 2000-12-18 2006-01-11 Ｈｏｙａ株式会社 磁気記録媒体用ガラス基板の製造方法およびそれを用いて得られる磁気記録媒体用ガラス基板
JP4274708B2 (ja) * 2001-05-14 2009-06-10 Ｈｏｙａ株式会社 磁気記録媒体用ガラス基板及びその製造方法
JP2005078708A (ja) * 2003-08-29 2005-03-24 Toshiba Corp 磁気ディスクおよびこれを備えた磁気ディスク装置
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
JP2006089363A (ja) * 2004-08-27 2006-04-06 Showa Denko Kk 磁気記録媒体用ガラス基板の製造方法、それにより得られる磁気記録媒体用ガラス基板およびこの基板を用いて得られる磁気記録媒体
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
US7727645B2 (en) * 2005-07-08 2010-06-01 Showa Denko K.K. Substrate for magnetic recording medium, magnetic recording medium, and magnetic recording and reproducing apparatus
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
JP5484649B2 (ja) * 2006-01-27 2014-05-07 古河電気工業株式会社 薄板ガラスの製造方法
JP2007272995A (ja) * 2006-03-31 2007-10-18 Hoya Corp 磁気ディスク装置および非磁性基板の良否判定方法、磁気ディスク、並びに磁気ディスク装置
US8241423B2 (en) * 2006-09-29 2012-08-14 Sumco Techxiv Corporation Silicon single crystal substrate and manufacture thereof
EP2277838B1 (en) * 2008-03-19 2014-01-22 Hoya Corporation Magnetic recording media substrates and magnetic recording media
WO2010001843A1 (ja) * 2008-06-30 2010-01-07 Hoya株式会社 磁気ディスク用基板及び磁気ディスク
JP5035405B2 (ja) 2009-11-26 2012-09-26 旭硝子株式会社 磁気記録媒体用ガラス基板の製造方法
KR102064643B1 (ko) * 2012-03-30 2020-01-08 호야 가부시키가이샤 마스크 블랭크용 기판, 다층 반사막 부착 기판, 투과형 마스크 블랭크, 반사형 마스크 블랭크, 투과형 마스크, 반사형 마스크 및 반도체 장치의 제조 방법
US9697860B2 (en) 2012-09-28 2017-07-04 Hoya Corporation Magnetic-disk glass substrate, magnetic disk and method for manufacturing magnetic-disk glass substrate
US9595283B2 (en) * 2012-12-29 2017-03-14 Hoya Corporation Glass substrate for magnetic disk and magnetic disk
SG10201608631VA (en) * 2013-02-22 2016-12-29 Hoya Corp Glass substrate for magnetic disk and magnetic disk
SG11201506622TA (en) * 2013-03-01 2015-09-29 Hoya Corp Glass substrate for magnetic disk 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
JP6106813B1 (ja) * 2015-09-30 2017-04-05 Hoya株式会社 磁気ディスク用ガラス基板、磁気ディスク、ガラス基板中間体、及び磁気ディスク用ガラス基板の製造方法

Also Published As

Publication number Publication date
JP2017130249A (ja) 2017-07-27
US20180174606A1 (en) 2018-06-21
US10720180B2 (en) 2020-07-21
JP6577501B2 (ja) 2019-09-18
US11710505B2 (en) 2023-07-25
CN110503983A (zh) 2019-11-26
US11211090B2 (en) 2021-12-28
CN110503983B (zh) 2021-03-19
JP6106813B1 (ja) 2017-04-05
US20200286516A1 (en) 2020-09-10
WO2017057686A1 (ja) 2017-04-06
US20220101877A1 (en) 2022-03-31
CN107615381B (zh) 2019-09-13
JPWO2017057686A1 (ja) 2017-10-05
MY168096A (en) 2018-10-11
CN107615381A (zh) 2018-01-19

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