SG165291A1 - Substrate for a magnetic disk and method of manufacturing the same - Google Patents

Substrate for a magnetic disk and method of manufacturing the same

Info

Publication number
SG165291A1
SG165291A1 SG201002192-1A SG2010021921A SG165291A1 SG 165291 A1 SG165291 A1 SG 165291A1 SG 2010021921 A SG2010021921 A SG 2010021921A SG 165291 A1 SG165291 A1 SG 165291A1
Authority
SG
Singapore
Prior art keywords
magnetic disk
main surface
substrate
chamfered
manufacturing
Prior art date
Application number
SG201002192-1A
Other languages
English (en)
Inventor
Hiroshi Tsuchiya
Junpei Fukada
Takanori Mizuno
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 SG165291A1 publication Critical patent/SG165291A1/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
SG201002192-1A 2009-03-30 2010-03-30 Substrate for a magnetic disk and method of manufacturing the same SG165291A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009081699 2009-03-30
JP2009293759A JP2010257562A (ja) 2009-03-30 2009-12-25 磁気ディスク用基板及びその製造方法

Publications (1)

Publication Number Publication Date
SG165291A1 true SG165291A1 (en) 2010-10-28

Family

ID=42784636

Family Applications (1)

Application Number Title Priority Date Filing Date
SG201002192-1A SG165291A1 (en) 2009-03-30 2010-03-30 Substrate for a magnetic disk and method of manufacturing the same

Country Status (4)

Country Link
US (1) US20100247977A1 (ja)
JP (1) JP2010257562A (ja)
CN (1) CN101853670A (ja)
SG (1) SG165291A1 (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103930947B (zh) * 2011-09-30 2016-12-21 Hoya株式会社 信息记录介质用玻璃基板以及信息记录介质
WO2013146133A1 (ja) * 2012-03-30 2013-10-03 コニカミノルタ株式会社 情報記録媒体用ガラス基板の製造方法および情報記録媒体
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
CN103213055A (zh) * 2013-04-22 2013-07-24 常熟市研明电子元器件厂 磁性基板的磨削方法
WO2015046525A1 (ja) * 2013-09-27 2015-04-02 Hoya株式会社 非磁性基板の製造方法
JP7071294B2 (ja) 2016-07-05 2022-05-18 コーニング インコーポレイテッド 冷間成形ガラス物品及びその組立方法
KR102077696B1 (ko) 2017-01-03 2020-02-14 코닝 인코포레이티드 만곡된 커버 유리 및 디스플레이 또는 터치 패널을 갖는 차량 인테리어 시스템 및 이를 형성시키는 방법
EP3681847A1 (en) 2017-09-12 2020-07-22 Corning Incorporated Tactile elements for deadfronted glass and methods of making the same
US11065960B2 (en) 2017-09-13 2021-07-20 Corning Incorporated Curved vehicle displays
WO2019103469A1 (en) * 2017-11-21 2019-05-31 Corning Precision Materials Co., Ltd. Aspheric mirror for head-up display system and methods for forming the same
US11367462B1 (en) 2019-01-28 2022-06-21 Seagate Technology Llc Method of laser cutting a hard disk drive substrate for an edge profile alignable to a registration support
US11772361B2 (en) 2020-04-02 2023-10-03 Corning Incorporated Curved glass constructions and methods for forming same
CN114734333A (zh) * 2022-05-05 2022-07-12 北京天科合达半导体股份有限公司 一种倒角方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7180709B2 (en) * 2002-05-09 2007-02-20 Maxtor Corporation Information-storage media with dissimilar outer diameter and/or inner diameter chamfer designs on two sides
TWI229324B (en) * 2002-05-09 2005-03-11 Maxtor Corp Method of simultaneous two-disk processing of single-sided magnetic recording disks
US8172954B2 (en) * 2002-10-10 2012-05-08 Seagate Technology Llc Apparatus for simultaneous two-disk scrubbing and washing
US20090148724A1 (en) * 2004-08-30 2009-06-11 Showa Denko K.K. Glass Substrate for Magnetic Recording Medium and Magnetic Recording Medium
JP2006237055A (ja) * 2005-02-22 2006-09-07 Shin Etsu Handotai Co Ltd 半導体ウェーハの製造方法および半導体ウェーハの鏡面面取り方法
JP4836731B2 (ja) * 2006-07-18 2011-12-14 旭硝子株式会社 磁気ディスク用ガラス基板の製造方法
JP2009039827A (ja) * 2007-08-09 2009-02-26 Fujitsu Ltd 研磨装置、基板及び電子機器の製造方法

Also Published As

Publication number Publication date
JP2010257562A (ja) 2010-11-11
US20100247977A1 (en) 2010-09-30
CN101853670A (zh) 2010-10-06

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