SG10201702021UA - Magnetic-disk substrate, magnetic disk, and magnetic-disk drive device - Google Patents
Magnetic-disk substrate, magnetic disk, and magnetic-disk drive deviceInfo
- Publication number
- SG10201702021UA SG10201702021UA SG10201702021UA SG10201702021UA SG10201702021UA SG 10201702021U A SG10201702021U A SG 10201702021UA SG 10201702021U A SG10201702021U A SG 10201702021UA SG 10201702021U A SG10201702021U A SG 10201702021UA SG 10201702021U A SG10201702021U A SG 10201702021UA
- Authority
- SG
- Singapore
- Prior art keywords
- magnetic
- disk
- drive device
- substrate
- disk drive
- 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
- G11B5/62—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
-
- G11B5/7315—
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
-
- 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
-
- 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013270031 | 2013-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG10201702021UA true SG10201702021UA (en) | 2017-05-30 |
Family
ID=53479016
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG11201604583RA SG11201604583RA (en) | 2013-12-26 | 2014-12-26 | Magnetic-disk substrate, magnetic disk, and magnetic-disk drive device |
| SG10201702021UA SG10201702021UA (en) | 2013-12-26 | 2014-12-26 | Magnetic-disk substrate, magnetic disk, and magnetic-disk drive device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG11201604583RA SG11201604583RA (en) | 2013-12-26 | 2014-12-26 | Magnetic-disk substrate, magnetic disk, and magnetic-disk drive device |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US9711175B2 (en) |
| JP (2) | JP5903531B2 (en) |
| CN (2) | CN105849806B (en) |
| MY (1) | MY179223A (en) |
| SG (2) | SG11201604583RA (en) |
| WO (1) | WO2015099178A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6895847B2 (en) * | 2017-08-24 | 2021-06-30 | 東洋鋼鈑株式会社 | Substrate for magnetic disk and its manufacturing method |
| US10872635B2 (en) * | 2017-08-31 | 2020-12-22 | Hoya Corporation | Spacer and hard disk drive apparatus |
| DE102018112805A1 (en) * | 2018-05-29 | 2019-12-05 | Klingelnberg Gmbh | Method for the analysis of surface undulations |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08279134A (en) | 1995-04-04 | 1996-10-22 | Kao Corp | Magnetic recording medium |
| JP2001167430A (en) * | 1999-12-08 | 2001-06-22 | Asahi Techno Glass Corp | Substrate for magnetic disk and its manufacturing method |
| WO2002076675A1 (en) | 2001-03-27 | 2002-10-03 | Nippon Sheet Glass Co., Ltd. | Substrate for information recording medium and production method thereof, information recording medium, and glass blank sheet |
| JP4234991B2 (en) * | 2002-12-26 | 2009-03-04 | Ｈｏｙａ株式会社 | Manufacturing method of glass substrate for information recording medium and glass substrate for information recording medium manufactured by the manufacturing method |
| JP4023408B2 (en) * | 2003-02-04 | 2007-12-19 | 富士電機デバイステクノロジー株式会社 | Substrate for perpendicular magnetic recording medium, perpendicular magnetic recording medium, and method for producing them |
| JP4707311B2 (en) | 2003-08-08 | 2011-06-22 | 花王株式会社 | Magnetic disk substrate |
| US20080032608A1 (en) * | 2004-08-27 | 2008-02-07 | Showa Denko K.K. | Process for Manufacturing Glass Substrate for Magnetic Recording Medium and Glass Substrate for Magnetic Recording Medium Obtained by the Process |
| JP2006209854A (en) | 2005-01-27 | 2006-08-10 | Fuji Photo Film Co Ltd | Magnetic recording medium, and magnetic recording and reproducing method |
| US20070003796A1 (en) | 2005-06-03 | 2007-01-04 | Hoya Corporation | Method for manufacturing magnetic disk glass substrate and method for manufacturing magnetic disk |
| JP5371183B2 (en) * | 2006-03-24 | 2013-12-18 | Ｈｏｙａ株式会社 | Manufacturing method of glass substrate for magnetic disk and manufacturing method of magnetic disk |
| CN101611444B (en) | 2007-02-20 | 2012-10-10 | Hoya株式会社 | Magnetic disc substrate, magnetic disc, and magnetic disc device |
| SG192516A1 (en) | 2007-02-20 | 2013-08-30 | Hoya Corp | Magnetic disk substrate, magnetic disk, and magnetic disk device |
| JP2008293552A (en) | 2007-05-22 | 2008-12-04 | Fujitsu Ltd | Substrate, magnetic recording medium, its manufacturing method, and magnetic storage device |
| WO2009084534A1 (en) | 2007-12-28 | 2009-07-09 | Hoya Corporation | Magnetic disk glass substrate, magnetic disk, and magnetic disk manufacturing method |
| WO2010029878A1 (en) * | 2008-09-10 | 2010-03-18 | Hoya株式会社 | Method for manufacturing glass substrate for magnetic disc, glass substrate for magnetic disc, method for manufacturing magnetic disc, and magnetic disc |
| US8785010B2 (en) * | 2008-09-30 | 2014-07-22 | Hoya Corporation | Glass substrate for a magnetic disk and magnetic disk |
| SG179136A1 (en) * | 2009-09-18 | 2012-04-27 | Konica Minolta Opto Inc | Glass substrate for information recording medium, information recording medium and method of manufacturing glass substrate for information recording medium |
| JP5428793B2 (en) * | 2009-11-17 | 2014-02-26 | 旭硝子株式会社 | Glass substrate polishing method and method for producing glass substrate for magnetic recording medium |
| US8394516B2 (en) | 2010-10-29 | 2013-03-12 | Hoya Corporation | Glass substrate for magnetic recording medium and magnetic recording medium |
| JP5975654B2 (en) * | 2011-01-27 | 2016-08-23 | Hoya株式会社 | Manufacturing method of glass substrate for magnetic disk and manufacturing method of magnetic disk |
| JP4977795B1 (en) * | 2011-10-14 | 2012-07-18 | 旭硝子株式会社 | GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING MEDIUM USING THE GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM |
| JP5826000B2 (en) | 2011-11-30 | 2015-12-02 | 昭和電工株式会社 | Substrate for magnetic recording medium, magnetic recording medium, method for manufacturing magnetic recording medium substrate, and surface inspection method |
-
2014
- 2014-12-26 MY MYPI2016702082A patent/MY179223A/en unknown
- 2014-12-26 CN CN201480070863.4A patent/CN105849806B/en active Active
- 2014-12-26 JP JP2015537067A patent/JP5903531B2/en active Active
- 2014-12-26 SG SG11201604583RA patent/SG11201604583RA/en unknown
- 2014-12-26 CN CN201710991214.3A patent/CN107785034B/en active Active
- 2014-12-26 SG SG10201702021UA patent/SG10201702021UA/en unknown
- 2014-12-26 US US15/107,764 patent/US9711175B2/en active Active
- 2014-12-26 WO PCT/JP2014/084703 patent/WO2015099178A1/en active Application Filing
-
2016
- 2016-03-14 JP JP2016049922A patent/JP6374426B2/en active Active
-
2017
- 2017-05-24 US US15/603,964 patent/US9865293B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| SG11201604583RA (en) | 2016-07-28 |
| US9865293B2 (en) | 2018-01-09 |
| CN107785034A (en) | 2018-03-09 |
| WO2015099178A1 (en) | 2015-07-02 |
| CN107785034B (en) | 2020-03-27 |
| CN105849806A (en) | 2016-08-10 |
| CN105849806B (en) | 2017-11-21 |
| JP2016110689A (en) | 2016-06-20 |
| US20170256278A1 (en) | 2017-09-07 |
| JP6374426B2 (en) | 2018-08-15 |
| US20160329073A1 (en) | 2016-11-10 |
| JP5903531B2 (en) | 2016-04-13 |
| US9711175B2 (en) | 2017-07-18 |
| MY179223A (en) | 2020-11-02 |
| JPWO2015099178A1 (en) | 2017-03-23 |
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