CN110503983B - 磁盘用玻璃基板及其制造方法、磁盘和玻璃基板中间体 - Google Patents

磁盘用玻璃基板及其制造方法、磁盘和玻璃基板中间体 Download PDF

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Publication number
CN110503983B
CN110503983B CN201910743784.XA CN201910743784A CN110503983B CN 110503983 B CN110503983 B CN 110503983B CN 201910743784 A CN201910743784 A CN 201910743784A CN 110503983 B CN110503983 B CN 110503983B
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glass substrate
magnetic disk
roughness
face
glass
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CN110503983A (zh
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东修平
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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)
CN201910743784.XA 2015-09-30 2016-09-30 磁盘用玻璃基板及其制造方法、磁盘和玻璃基板中间体 Active CN110503983B (zh)

Applications Claiming Priority (3)

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JP2015-195128 2015-09-30
JP2015195128 2015-09-30
CN201680029894.4A CN107615381B (zh) 2015-09-30 2016-09-30 磁盘用玻璃基板、磁盘、玻璃基板中间体和磁盘用玻璃基板的制造方法

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CN201680029894.4A Division CN107615381B (zh) 2015-09-30 2016-09-30 磁盘用玻璃基板、磁盘、玻璃基板中间体和磁盘用玻璃基板的制造方法

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CN110503983A CN110503983A (zh) 2019-11-26
CN110503983B true CN110503983B (zh) 2021-03-19

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CN201910743784.XA Active CN110503983B (zh) 2015-09-30 2016-09-30 磁盘用玻璃基板及其制造方法、磁盘和玻璃基板中间体
CN201680029894.4A Active CN107615381B (zh) 2015-09-30 2016-09-30 磁盘用玻璃基板、磁盘、玻璃基板中间体和磁盘用玻璃基板的制造方法

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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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CN104584126A (zh) * 2012-09-28 2015-04-29 Hoya株式会社 磁盘用玻璃基板、磁盘以及磁盘用玻璃基板的制造方法
CN106030709A (zh) * 2014-03-31 2016-10-12 Hoya株式会社 磁盘用玻璃基板

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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
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
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
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
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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
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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
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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
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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
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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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CN101977860A (zh) * 2008-03-19 2011-02-16 Hoya株式会社 磁记录介质基板用玻璃、磁记录介质基板、磁记录介质和它们的制造方法
CN104584126A (zh) * 2012-09-28 2015-04-29 Hoya株式会社 磁盘用玻璃基板、磁盘以及磁盘用玻璃基板的制造方法
CN106030709A (zh) * 2014-03-31 2016-10-12 Hoya株式会社 磁盘用玻璃基板

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Publication number Publication date
JP6106813B1 (ja) 2017-04-05
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
JP2017130249A (ja) 2017-07-27
CN107615381A (zh) 2018-01-19
US10720180B2 (en) 2020-07-21

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