MY149665A - Magnetic disk substrate and magnetic disk - Google Patents
Magnetic disk substrate and magnetic diskInfo
- Publication number
- MY149665A MY149665A MYPI20095502A MYPI20095502A MY149665A MY 149665 A MY149665 A MY 149665A MY PI20095502 A MYPI20095502 A MY PI20095502A MY PI20095502 A MYPI20095502 A MY PI20095502A MY 149665 A MY149665 A MY 149665A
- Authority
- MY
- Malaysia
- Prior art keywords
- magnetic disk
- substrate
- main surface
- directions along
- disk substrate
- Prior art date
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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/82—Disk carriers
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007232583A JP4860580B2 (ja) | 2007-09-07 | 2007-09-07 | 磁気ディスク用基板及び磁気ディスク |
Publications (1)
Publication Number | Publication Date |
---|---|
MY149665A true MY149665A (en) | 2013-09-30 |
Family
ID=40428814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI20095502A MY149665A (en) | 2007-09-07 | 2008-09-01 | Magnetic disk substrate and magnetic disk |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4860580B2 (ja) |
MY (1) | MY149665A (ja) |
WO (1) | WO2009031497A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4748115B2 (ja) * | 2007-06-12 | 2011-08-17 | コニカミノルタオプト株式会社 | 磁気記録媒体用ガラス基板及び磁気記録媒体 |
CN106098085B (zh) * | 2012-09-28 | 2019-07-02 | Hoya株式会社 | 磁盘用玻璃基板、磁盘以及圆环状的玻璃坯板 |
JP6008060B1 (ja) * | 2015-12-22 | 2016-10-19 | 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、磁気記録媒体用ガラス基板の製造方法、及び磁気記録媒体用ガラス基板製造装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11349354A (ja) * | 1998-06-08 | 1999-12-21 | Nikon Corp | 情報記録媒体用基板及びその製造方法 |
JP2006294099A (ja) * | 2005-04-07 | 2006-10-26 | Asahi Glass Co Ltd | 磁気記録媒体用ガラス基板の周面研磨装置及び製造方法 |
JP2008080482A (ja) * | 2006-09-01 | 2008-04-10 | Hoya Corp | 磁気ディスク用ガラス基板の製造方法および製造装置、磁気ディスク用ガラス基板、磁気ディスクの製造方法、ならびに磁気ディスク |
-
2007
- 2007-09-07 JP JP2007232583A patent/JP4860580B2/ja active Active
-
2008
- 2008-09-01 WO PCT/JP2008/065675 patent/WO2009031497A1/ja active Application Filing
- 2008-09-01 MY MYPI20095502A patent/MY149665A/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2009031497A1 (ja) | 2009-03-12 |
JP4860580B2 (ja) | 2012-01-25 |
JP2009064524A (ja) | 2009-03-26 |
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