JP2019215951A5 - - Google Patents
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- Publication number
- JP2019215951A5 JP2019215951A5 JP2019149512A JP2019149512A JP2019215951A5 JP 2019215951 A5 JP2019215951 A5 JP 2019215951A5 JP 2019149512 A JP2019149512 A JP 2019149512A JP 2019149512 A JP2019149512 A JP 2019149512A JP 2019215951 A5 JP2019215951 A5 JP 2019215951A5
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- film
- magnetic disk
- thickness
- outer peripheral
- 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
- 239000000758 substrate Substances 0.000 claims 20
- 230000002093 peripheral effect Effects 0.000 claims 10
- 230000003746 surface roughness Effects 0.000 claims 3
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- 238000009751 slip forming Methods 0.000 claims 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021189876A JP7191185B2 (ja) | 2017-03-31 | 2021-11-24 | 磁気ディスク用非磁性基板及び磁気ディスク |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017070232 | 2017-03-31 | ||
| JP2017070232 | 2017-03-31 | ||
| JP2019509441A JP6574537B2 (ja) | 2017-03-31 | 2018-04-02 | 磁気ディスク用非磁性基板及び磁気ディスク |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019509441A Division JP6574537B2 (ja) | 2017-03-31 | 2018-04-02 | 磁気ディスク用非磁性基板及び磁気ディスク |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021189876A Division JP7191185B2 (ja) | 2017-03-31 | 2021-11-24 | 磁気ディスク用非磁性基板及び磁気ディスク |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019215951A JP2019215951A (ja) | 2019-12-19 |
| JP2019215951A5 true JP2019215951A5 (https=) | 2021-09-09 |
| JP6983842B2 JP6983842B2 (ja) | 2021-12-17 |
Family
ID=63676296
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019509441A Active JP6574537B2 (ja) | 2017-03-31 | 2018-04-02 | 磁気ディスク用非磁性基板及び磁気ディスク |
| JP2019149512A Active JP6983842B2 (ja) | 2017-03-31 | 2019-08-16 | 磁気ディスク用非磁性基板及び磁気ディスク |
| JP2021189876A Active JP7191185B2 (ja) | 2017-03-31 | 2021-11-24 | 磁気ディスク用非磁性基板及び磁気ディスク |
| JP2022194840A Active JP7465332B2 (ja) | 2017-03-31 | 2022-12-06 | 磁気ディスク用非磁性基板及び磁気ディスク |
| JP2024056918A Active JP7646914B2 (ja) | 2017-03-31 | 2024-03-29 | 磁気ディスク用非磁性基板及び磁気ディスク |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019509441A Active JP6574537B2 (ja) | 2017-03-31 | 2018-04-02 | 磁気ディスク用非磁性基板及び磁気ディスク |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021189876A Active JP7191185B2 (ja) | 2017-03-31 | 2021-11-24 | 磁気ディスク用非磁性基板及び磁気ディスク |
| JP2022194840A Active JP7465332B2 (ja) | 2017-03-31 | 2022-12-06 | 磁気ディスク用非磁性基板及び磁気ディスク |
| JP2024056918A Active JP7646914B2 (ja) | 2017-03-31 | 2024-03-29 | 磁気ディスク用非磁性基板及び磁気ディスク |
Country Status (7)
| Country | Link |
|---|---|
| US (4) | US11031036B2 (https=) |
| JP (5) | JP6574537B2 (https=) |
| CN (2) | CN112002351B (https=) |
| MY (1) | MY192572A (https=) |
| PH (2) | PH12021552252A1 (https=) |
| SG (2) | SG11201908015QA (https=) |
| WO (1) | WO2018182046A1 (https=) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI755466B (zh) * | 2016-12-28 | 2022-02-21 | 日商東洋鋼鈑股份有限公司 | 硬碟用基板及使用其之硬碟裝置 |
| US11031036B2 (en) | 2017-03-31 | 2021-06-08 | Hoya Corporation | Non-magnetic substrate for magnetic disk, and magnetic disk |
| US11152026B2 (en) * | 2017-06-30 | 2021-10-19 | Hoya Corporation | Substrate for magnetic disks, and magnetic disk |
| MY208527A (en) | 2018-08-07 | 2025-05-14 | Hoya Corp | Substrate for magnetic disk and magnetic disk |
| CN117242520A (zh) * | 2021-04-30 | 2023-12-15 | 豪雅株式会社 | 生产环形物体的方法、成膜装置、环形物体和硬盘驱动装置 |
Family Cites Families (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4882236A (en) * | 1988-02-10 | 1989-11-21 | Olin Corporation | Rigid magnetic recording disks and method of producing same |
| JPH0757233A (ja) * | 1993-08-19 | 1995-03-03 | Hitachi Ltd | 磁気記録媒体 |
| US5626943A (en) * | 1994-06-02 | 1997-05-06 | The Carborundum Company | Ultra-smooth ceramic substrates and magnetic data storage media prepared therefrom |
| US5747135A (en) * | 1995-12-08 | 1998-05-05 | Aluminum Company Of America | Thin film pretreatment for memory disks and associated methods |
| JPH09198640A (ja) | 1996-01-16 | 1997-07-31 | Kobe Steel Ltd | 磁気ディスク |
| 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 |
| US6316097B1 (en) * | 1998-09-28 | 2001-11-13 | Seagate Technology Llc | Electroless plating process for alternative memory disk substrates |
| JP2003016633A (ja) * | 2001-06-28 | 2003-01-17 | Asahi Glass Co Ltd | 磁気ディスク用ガラス基板及びその製造方法 |
| JP2003263713A (ja) * | 2002-03-08 | 2003-09-19 | Canon Inc | 円筒状磁気記録媒体およびその作製方法 |
| CN100538827C (zh) * | 2004-03-25 | 2009-09-09 | Hoya株式会社 | 磁盘用玻璃基板 |
| JP2005322364A (ja) * | 2004-05-11 | 2005-11-17 | Fuji Electric Device Technology Co Ltd | 垂直磁気記録媒体用ディスク基板、該基板を用いた垂直磁気記録媒体、および、それらの製造方法 |
| JP2005346880A (ja) * | 2004-06-07 | 2005-12-15 | Toshiba Corp | 磁気記録再生装置 |
| CN1993735A (zh) * | 2004-08-16 | 2007-07-04 | 昭和电工株式会社 | 用于磁记录介质的硅基底、制造硅基底的方法以及磁记录介质 |
| US7573674B1 (en) * | 2004-12-23 | 2009-08-11 | Maxtor Corporation | Storage disk having increased damping characteristics in a disk drive |
| JP2006260700A (ja) * | 2005-03-18 | 2006-09-28 | Fujitsu Ltd | 磁気記録媒体及び磁気記録装置 |
| JP2006302358A (ja) * | 2005-04-18 | 2006-11-02 | Kobe Steel Ltd | 磁気記録媒体用Ａｌ合金基板および磁気記録媒体 |
| JP2007066390A (ja) * | 2005-08-30 | 2007-03-15 | Konica Minolta Opto Inc | 磁気記録媒体用基板、及び磁気記録媒体用基板の製造方法 |
| JP4665886B2 (ja) * | 2006-10-27 | 2011-04-06 | 富士電機デバイステクノロジー株式会社 | 垂直磁気記録媒体、垂直磁気記録媒体用基板、および、それらの製造方法 |
| JP2009160831A (ja) * | 2008-01-08 | 2009-07-23 | Fujifilm Corp | パターンローラの製作方法 |
| JP2010118111A (ja) | 2008-11-12 | 2010-05-27 | Toshiba Storage Device Corp | 磁気記憶装置 |
| CA2804212C (en) * | 2010-07-09 | 2018-01-02 | Micro Motion, Inc. | A vibrating meter including an improved meter case |
| US9697860B2 (en) | 2012-09-28 | 2017-07-04 | Hoya Corporation | Magnetic-disk glass substrate, magnetic disk and method for manufacturing magnetic-disk glass substrate |
| JP6089039B2 (ja) | 2012-09-28 | 2017-03-01 | Hoya株式会社 | 磁気ディスク用ガラス基板、磁気ディスク |
| US9595283B2 (en) | 2012-12-29 | 2017-03-14 | Hoya Corporation | 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 |
| JP5762612B1 (ja) | 2014-09-27 | 2015-08-12 | 株式会社Uacj | 磁気ディスク基板用アルミニウム合金板及びその製造方法、ならびに、磁気ディスクの製造方法 |
| JP2016126808A (ja) | 2014-12-31 | 2016-07-11 | Hoya株式会社 | 磁気ディスク用基板の製造方法、及び端面研磨処理装置 |
| CN110450009B (zh) | 2014-12-31 | 2021-08-13 | Hoya株式会社 | 基板的制造方法、基板端面的加工装置、基板端面的加工方法和磨削用磨石 |
| JP2017199442A (ja) | 2016-04-25 | 2017-11-02 | 旭硝子株式会社 | 磁気記録媒体用基板の製造方法、磁気記録媒体用基板の梱包体 |
| TWI755466B (zh) | 2016-12-28 | 2022-02-21 | 日商東洋鋼鈑股份有限公司 | 硬碟用基板及使用其之硬碟裝置 |
| JP6832179B2 (ja) * | 2017-02-03 | 2021-02-24 | 昭和電工株式会社 | 磁気記録媒体用基板およびハードディスクドライブ |
| US11031036B2 (en) * | 2017-03-31 | 2021-06-08 | Hoya Corporation | Non-magnetic substrate for magnetic disk, and magnetic disk |
| US11152026B2 (en) * | 2017-06-30 | 2021-10-19 | Hoya Corporation | Substrate for magnetic disks, and magnetic disk |
-
2018
- 2018-04-02 US US16/499,200 patent/US11031036B2/en active Active
- 2018-04-02 SG SG11201908015Q patent/SG11201908015QA/en unknown
- 2018-04-02 CN CN202010854430.5A patent/CN112002351B/zh active Active
- 2018-04-02 SG SG10202111088SA patent/SG10202111088SA/en unknown
- 2018-04-02 CN CN201880013884.0A patent/CN110326042B/zh active Active
- 2018-04-02 MY MYPI2019005183A patent/MY192572A/en unknown
- 2018-04-02 PH PH1/2021/552252A patent/PH12021552252A1/en unknown
- 2018-04-02 JP JP2019509441A patent/JP6574537B2/ja active Active
- 2018-04-02 WO PCT/JP2018/014169 patent/WO2018182046A1/ja not_active Ceased
-
2019
- 2019-08-16 JP JP2019149512A patent/JP6983842B2/ja active Active
- 2019-09-12 PH PH12019502068A patent/PH12019502068A1/en unknown
-
2021
- 2021-05-07 US US17/315,145 patent/US11545178B2/en active Active
- 2021-11-24 JP JP2021189876A patent/JP7191185B2/ja active Active
-
2022
- 2022-12-06 JP JP2022194840A patent/JP7465332B2/ja active Active
- 2022-12-12 US US18/079,849 patent/US11955151B2/en active Active
-
2024
- 2024-02-28 US US18/590,811 patent/US12548594B2/en active Active
- 2024-03-29 JP JP2024056918A patent/JP7646914B2/ja active Active
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