JP6106813B1 - 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 - Google Patents

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 Download PDF

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JP6106813B1
JP6106813B1 JP2017502273A JP2017502273A JP6106813B1 JP 6106813 B1 JP6106813 B1 JP 6106813B1 JP 2017502273 A JP2017502273 A JP 2017502273A JP 2017502273 A JP2017502273 A JP 2017502273A JP 6106813 B1 JP6106813 B1 JP 6106813B1
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glass substrate
roughness
magnetic
glass
magnetic disk
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JPWO2017057686A1 (ja
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修平 東
修平 東
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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
    • G11B5/84—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

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  • 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)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Glass Compositions (AREA)
  • Surface Treatment Of Glass (AREA)
JP2017502273A 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 Active JP6106813B1 (ja)

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JP2015195128 2015-09-30
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

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JP2017042094A Division JP6577501B2 (ja) 2015-09-30 2017-03-06 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

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JP6106813B1 true JP6106813B1 (ja) 2017-04-05
JPWO2017057686A1 JPWO2017057686A1 (ja) 2017-10-05

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JP2017502273A Active JP6106813B1 (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
JP2017042094A Active JP6577501B2 (ja) 2015-09-30 2017-03-06 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

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US (3) US10720180B2 (enExample)
JP (2) JP6106813B1 (enExample)
CN (2) CN110503983B (enExample)
MY (1) MY168096A (enExample)
SG (1) SG11201709624VA (enExample)
WO (1) WO2017057686A1 (enExample)

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CN107256712B (zh) * 2012-09-28 2020-04-14 Hoya株式会社 磁盘用玻璃基板及其制造方法、磁盘、圆环状的玻璃基板
CN110503983B (zh) * 2015-09-30 2021-03-19 Hoya株式会社 磁盘用玻璃基板及其制造方法、磁盘和玻璃基板中间体
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
JP7732498B2 (ja) * 2021-03-30 2025-09-02 ソニーグループ株式会社 磁気記録媒体

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JP2000132829A (ja) * 1998-08-19 2000-05-12 Hoya Corp 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
JP2007042263A (ja) * 2005-07-08 2007-02-15 Showa Denko Kk 磁気記録媒体用基板及び磁気記録媒体並びに磁気記録再生装置
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
WO2014050241A1 (ja) * 2012-09-28 2014-04-03 Hoya株式会社 磁気ディスク用ガラス基板、磁気ディスク、磁気ディスク用ガラス基板の製造方法
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

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JPH0785463A (ja) * 1993-09-20 1995-03-31 A G Technol Kk 磁気ディスク
SG84541A1 (en) 1998-08-19 2001-11-20 Hoya Corp Glass substrate for magnetic recording medium, magnetic recording medium, and method of manufacturing the same
JP3959588B2 (ja) * 1999-05-13 2007-08-15 日本板硝子株式会社 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
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
WO2007007650A1 (en) * 2005-07-08 2007-01-18 Showa Denko K.K. Substrate for magnetic recording medium, magnetic recording medium, and magnetic recording and reproducing apparatus
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
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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
KR101477469B1 (ko) * 2012-03-30 2014-12-29 호야 가부시키가이샤 마스크 블랭크용 기판, 다층 반사막 부착 기판, 투과형 마스크 블랭크, 반사형 마스크 블랭크, 투과형 마스크, 반사형 마스크 및 반도체 장치의 제조 방법
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
CN110503983B (zh) * 2015-09-30 2021-03-19 Hoya株式会社 磁盘用玻璃基板及其制造方法、磁盘和玻璃基板中间体

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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
JP2000132829A (ja) * 1998-08-19 2000-05-12 Hoya Corp 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
JP2007042263A (ja) * 2005-07-08 2007-02-15 Showa Denko Kk 磁気記録媒体用基板及び磁気記録媒体並びに磁気記録再生装置
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
WO2014050241A1 (ja) * 2012-09-28 2014-04-03 Hoya株式会社 磁気ディスク用ガラス基板、磁気ディスク、磁気ディスク用ガラス基板の製造方法
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

Also Published As

Publication number Publication date
US20180174606A1 (en) 2018-06-21
MY168096A (en) 2018-10-11
WO2017057686A1 (ja) 2017-04-06
JPWO2017057686A1 (ja) 2017-10-05
US20220101877A1 (en) 2022-03-31
US11211090B2 (en) 2021-12-28
CN107615381B (zh) 2019-09-13
CN110503983A (zh) 2019-11-26
JP6577501B2 (ja) 2019-09-18
SG11201709624VA (en) 2017-12-28
US11710505B2 (en) 2023-07-25
US20200286516A1 (en) 2020-09-10
CN110503983B (zh) 2021-03-19
JP2017130249A (ja) 2017-07-27
CN107615381A (zh) 2018-01-19
US10720180B2 (en) 2020-07-21

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