JP2014160539A5 - - Google Patents
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- Publication number
- JP2014160539A5 JP2014160539A5 JP2014099972A JP2014099972A JP2014160539A5 JP 2014160539 A5 JP2014160539 A5 JP 2014160539A5 JP 2014099972 A JP2014099972 A JP 2014099972A JP 2014099972 A JP2014099972 A JP 2014099972A JP 2014160539 A5 JP2014160539 A5 JP 2014160539A5
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- JP
- Japan
- Prior art keywords
- base plate
- curvature
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- difference
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 claims description 37
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims 15
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014099972A JP6089001B2 (ja) | 2012-09-28 | 2014-05-13 | 磁気ディスク用ガラス基板、磁気ディスク |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012218706 | 2012-09-28 | ||
| JP2012218706 | 2012-09-28 | ||
| JP2014099972A JP6089001B2 (ja) | 2012-09-28 | 2014-05-13 | 磁気ディスク用ガラス基板、磁気ディスク |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014519114A Division JP5574392B1 (ja) | 2012-09-28 | 2013-09-30 | 磁気ディスク用ガラス基板、磁気ディスク |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014160539A JP2014160539A (ja) | 2014-09-04 |
| JP2014160539A5 true JP2014160539A5 (enExample) | 2016-09-08 |
| JP6089001B2 JP6089001B2 (ja) | 2017-03-01 |
Family
ID=50388536
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014519114A Active JP5574392B1 (ja) | 2012-09-28 | 2013-09-30 | 磁気ディスク用ガラス基板、磁気ディスク |
| JP2014099972A Active JP6089001B2 (ja) | 2012-09-28 | 2014-05-13 | 磁気ディスク用ガラス基板、磁気ディスク |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014519114A Active JP5574392B1 (ja) | 2012-09-28 | 2013-09-30 | 磁気ディスク用ガラス基板、磁気ディスク |
Country Status (6)
| Country | Link |
|---|---|
| US (3) | US9583128B2 (enExample) |
| JP (2) | JP5574392B1 (enExample) |
| CN (2) | CN104603875B (enExample) |
| MY (2) | MY198411A (enExample) |
| SG (2) | SG10201605879PA (enExample) |
| WO (1) | WO2014051152A1 (enExample) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104603875B (zh) * | 2012-09-28 | 2016-07-06 | Hoya株式会社 | 磁盘用玻璃基板、磁盘 |
| SG10201705086TA (en) * | 2012-12-29 | 2017-07-28 | Hoya Corp | Glass substrate for magnetic disk and magnetic disk |
| US9595284B2 (en) * | 2013-02-22 | 2017-03-14 | Hoya Corporation | Glass substrate for magnetic disk and magnetic disk |
| MY165594A (en) | 2013-03-01 | 2018-04-16 | Hoya Corp | Glass substrate for magnetic disk and magnetic disk |
| US10032472B2 (en) * | 2014-03-31 | 2018-07-24 | Hoya Corporation | Magnetic-disk glass substrate |
| JP6020754B1 (ja) * | 2015-12-25 | 2016-11-02 | 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 |
| WO2020021705A1 (ja) | 2018-07-27 | 2020-01-30 | Hoya株式会社 | ガラス基板の製造方法及び磁気ディスクの製造方法 |
| JP6975862B2 (ja) | 2018-08-07 | 2021-12-01 | Hoya株式会社 | 磁気ディスク用基板及び磁気ディスク |
| US20210090601A1 (en) | 2019-09-25 | 2021-03-25 | Western Digital Technologies, Inc. | Magnetic recording apparatus comprising disk with reduced thickness and reduced disk flatness |
| WO2022181715A1 (ja) * | 2021-02-24 | 2022-09-01 | 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 |
| US11664050B2 (en) | 2021-10-05 | 2023-05-30 | Western Digital Technologies, Inc. | Tuned edge profile of a disk substrate for use in magnetic recording media |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19850744C1 (de) | 1998-11-04 | 2000-10-05 | Schott Glas | Verwendung von Gläsern zur Herstellung von Festplattensubstraten |
| JP2002100031A (ja) * | 2000-09-26 | 2002-04-05 | Hoya Corp | 磁気記録媒体用ガラス基板、及び磁気記録媒体 |
| 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 |
| 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 |
| 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 |
| JP2006099945A (ja) * | 2004-08-30 | 2006-04-13 | Showa Denko Kk | 磁気記録媒体用ガラス基板および磁気記録媒体 |
| CN101010734A (zh) * | 2004-08-30 | 2007-08-01 | 昭和电工株式会社 | 用于磁记录介质的玻璃基底以及磁记录介质 |
| 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 |
| JP2008094982A (ja) * | 2006-10-12 | 2008-04-24 | Kao Corp | メモリーハードディスク基板用研磨液組成物 |
| WO2008102751A1 (ja) * | 2007-02-20 | 2008-08-28 | Hoya Corporation | 磁気ディスク用基板および磁気ディスク |
| CN101611444B (zh) * | 2007-02-20 | 2012-10-10 | Hoya株式会社 | 磁盘用基板、磁盘以及磁盘装置 |
| 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 |
| JP4860580B2 (ja) * | 2007-09-07 | 2012-01-25 | Ｈｏｙａ株式会社 | 磁気ディスク用基板及び磁気ディスク |
| JP2009134802A (ja) * | 2007-11-29 | 2009-06-18 | Furukawa Electric Co Ltd:The | 磁気ディスク用ガラス基板および磁気ディスク装置 |
| JP4994213B2 (ja) * | 2007-12-21 | 2012-08-08 | Ｈｏｙａ株式会社 | 磁気ディスク用ガラス基板、磁気ディスクおよび磁気ディスク用ガラス基板の製造方法 |
| JP5361185B2 (ja) * | 2007-12-25 | 2013-12-04 | Ｈｏｙａ株式会社 | 磁気ディスク用ガラス基板の製造方法 |
| JP2010257562A (ja) | 2009-03-30 | 2010-11-11 | Hoya Corp | 磁気ディスク用基板及びその製造方法 |
| CN104603875B (zh) * | 2012-09-28 | 2016-07-06 | Hoya株式会社 | 磁盘用玻璃基板、磁盘 |
| SG10201705086TA (en) * | 2012-12-29 | 2017-07-28 | Hoya Corp | Glass substrate for magnetic disk and magnetic disk |
| US9595284B2 (en) * | 2013-02-22 | 2017-03-14 | Hoya Corporation | Glass substrate for magnetic disk and magnetic disk |
| MY165594A (en) * | 2013-03-01 | 2018-04-16 | Hoya Corp | Glass substrate for magnetic disk and magnetic disk |
-
2013
- 2013-09-30 CN CN201380044545.6A patent/CN104603875B/zh active Active
- 2013-09-30 SG SG10201605879PA patent/SG10201605879PA/en unknown
- 2013-09-30 WO PCT/JP2013/076614 patent/WO2014051152A1/ja not_active Ceased
- 2013-09-30 MY MYPI2019000028A patent/MY198411A/en unknown
- 2013-09-30 JP JP2014519114A patent/JP5574392B1/ja active Active
- 2013-09-30 SG SG11201501457VA patent/SG11201501457VA/en unknown
- 2013-09-30 US US14/432,186 patent/US9583128B2/en active Active
- 2013-09-30 MY MYPI2015700584A patent/MY171392A/en unknown
- 2013-09-30 CN CN201610412698.7A patent/CN106098085B/zh active Active
-
2014
- 2014-05-13 JP JP2014099972A patent/JP6089001B2/ja active Active
-
2017
- 2017-01-31 US US15/420,502 patent/US10290315B2/en active Active
-
2019
- 2019-03-28 US US16/368,165 patent/US11094344B2/en active Active
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