SG11201709624VA - Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate - Google Patents
Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrateInfo
- Publication number
- SG11201709624VA SG11201709624VA SG11201709624VA SG11201709624VA SG11201709624VA SG 11201709624V A SG11201709624V A SG 11201709624VA SG 11201709624V A SG11201709624V A SG 11201709624VA SG 11201709624V A SG11201709624V A SG 11201709624VA SG 11201709624V A SG11201709624V A SG 11201709624VA
- Authority
- SG
- Singapore
- Prior art keywords
- glass substrate
- magnetic
- disk glass
- manufacturing
- disk
- 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
- G11B5/84—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
-
- 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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015195128 | 2015-09-30 | ||
| PCT/JP2016/079037 WO2017057686A1 (en) | 2015-09-30 | 2016-09-30 | Glass substrate for magnetic disk, magnetic disk, glass substrate intermediate body, and method for manufacturing glass substrate for magnetic disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG11201709624VA true SG11201709624VA (en) | 2017-12-28 |
Family
ID=58423694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG11201709624VA SG11201709624VA (en) | 2015-09-30 | 2016-09-30 | Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate |
Country Status (6)
| Country | Link |
|---|---|
| US (3) | US10720180B2 (en) |
| JP (2) | JP6106813B1 (en) |
| CN (2) | CN110503983B (en) |
| MY (1) | MY168096A (en) |
| SG (1) | SG11201709624VA (en) |
| WO (1) | WO2017057686A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5592037B1 (en) * | 2012-09-28 | 2014-09-17 | Ｈｏｙａ株式会社 | Glass substrate for magnetic disk, magnetic disk |
| SG11201709624VA (en) * | 2015-09-30 | 2017-12-28 | Hoya Corp | Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate |
| US11270724B1 (en) | 2021-03-04 | 2022-03-08 | Western Digital Technologies, Inc. | Glass substrates for heat assisted magnetic recording (HAMR) and methods and apparatus for use with the glass substrates |
| JPWO2022209372A1 (en) * | 2021-03-30 | 2022-10-06 |
Family Cites Families (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0785463A (en) * | 1993-09-20 | 1995-03-31 | A G Technol Kk | Magnetic disk |
| JPH07244947A (en) * | 1994-03-08 | 1995-09-19 | Hitachi Ltd | Magnetic disk device, magnetic disk and production of magnetic disk |
| JP3359304B2 (en) * | 1998-08-19 | 2002-12-24 | ホーヤ株式会社 | Glass substrate for magnetic recording medium, magnetic recording medium, and method of manufacturing them |
| 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 |
| US6440531B1 (en) * | 1999-05-13 | 2002-08-27 | Nippon Sheet Glass Co., Ltd | Hydrofluoric acid etched substrate for information recording medium |
| US6509111B1 (en) * | 1999-09-24 | 2003-01-21 | Hitachi, Ltd. | Magnetic recording media and magnetic disk apparatus |
| US6706427B2 (en) * | 1999-12-21 | 2004-03-16 | Hoya Corporation | Management technique of friction coefficient based on surface roughness, substrate for information recording medium, information recording medium and manufacture method thereof |
| US6852432B2 (en) * | 2000-06-30 | 2005-02-08 | Hitachi, Ltd. | Magnetic recording media and magnetic disk apparatus |
| JP3734745B2 (en) * | 2000-12-18 | 2006-01-11 | Ｈｏｙａ株式会社 | Manufacturing method of glass substrate for magnetic recording medium and glass substrate for magnetic recording medium obtained using the same |
| JP4274708B2 (en) * | 2001-05-14 | 2009-06-10 | Ｈｏｙａ株式会社 | Glass substrate for magnetic recording medium and manufacturing method thereof |
| JP2005078708A (en) * | 2003-08-29 | 2005-03-24 | Toshiba Corp | Magnetic disk and magnetic disk unit provided with the same |
| JP2006079800A (en) * | 2004-08-11 | 2006-03-23 | Showa Denko Kk | Silicon substrate for magnetic recording medium, manufacturing method thereof, and magnetic recording medium |
| JP2006092722A (en) * | 2004-08-27 | 2006-04-06 | Showa Denko Kk | Magnetic disk substrate and production method of magnetic disk |
| JP2006089363A (en) * | 2004-08-27 | 2006-04-06 | Showa Denko Kk | Process for manufacturing glass substrate for magnetic recording medium, glass substrate for magnetic recording medium obtained by the process, and magnetic recording medium obtained using the substrate |
| US7727645B2 (en) * | 2005-07-08 | 2010-06-01 | Showa Denko K.K. | Substrate for magnetic recording medium, magnetic recording medium, and magnetic recording and reproducing apparatus |
| JP4545714B2 (en) | 2005-07-08 | 2010-09-15 | 昭和電工株式会社 | Magnetic recording medium and magnetic recording / reproducing apparatus |
| JP5484649B2 (en) | 2006-01-27 | 2014-05-07 | 古河電気工業株式会社 | Thin glass manufacturing method |
| JP2007272995A (en) | 2006-03-31 | 2007-10-18 | Hoya Corp | Method for determining whether or not magnetic disk device and non-magnetic substrate are good, magnetic disk, and magnetic disk device |
| US8241423B2 (en) * | 2006-09-29 | 2012-08-14 | Sumco Techxiv Corporation | Silicon single crystal substrate and manufacture thereof |
| SG10201408031RA (en) | 2008-03-19 | 2015-01-29 | Hoya Corp | Glass for magnetic recording media substrates, magnetic recording media substrates, magnetic recording media and method for preparation thereof |
| US8734967B2 (en) * | 2008-06-30 | 2014-05-27 | Hoya Corporation | Substrate for magnetic disk and magnetic disk |
| JP5035405B2 (en) | 2009-11-26 | 2012-09-26 | 旭硝子株式会社 | Method for manufacturing glass substrate for magnetic recording medium |
| JP5538637B2 (en) * | 2012-03-30 | 2014-07-02 | Ｈｏｙａ株式会社 | Mask blank substrate, substrate with multilayer reflective film, transmissive mask blank, reflective mask blank, transmissive mask, reflective mask, and method for manufacturing semiconductor device |
| JP5592037B1 (en) * | 2012-09-28 | 2014-09-17 | Ｈｏｙａ株式会社 | Glass substrate for magnetic disk, magnetic disk |
| CN104823239B (en) * | 2012-12-29 | 2018-04-03 | Hoya株式会社 | Glass substrate for disc and disk |
| SG11201506619TA (en) * | 2013-02-22 | 2015-09-29 | Hoya Corp | Glass substrate for magnetic disk and magnetic disk |
| SG10201608638XA (en) * | 2013-03-01 | 2016-12-29 | Hoya Corp | Glass substrate for magnetic disk and magnetic disk |
| CN108133714B (en) | 2014-03-31 | 2019-08-23 | Hoya株式会社 | Glass substrate for disc |
| SG11201709624VA (en) * | 2015-09-30 | 2017-12-28 | Hoya Corp | Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate |
-
2016
- 2016-09-30 SG SG11201709624VA patent/SG11201709624VA/en unknown
- 2016-09-30 CN CN201910743784.XA patent/CN110503983B/en active Active
- 2016-09-30 WO PCT/JP2016/079037 patent/WO2017057686A1/en active Application Filing
- 2016-09-30 CN CN201680029894.4A patent/CN107615381B/en active Active
- 2016-09-30 US US15/579,033 patent/US10720180B2/en active Active
- 2016-09-30 MY MYPI2017704463A patent/MY168096A/en unknown
- 2016-09-30 JP JP2017502273A patent/JP6106813B1/en active Active
-
2017
- 2017-03-06 JP JP2017042094A patent/JP6577501B2/en active Active
-
2020
- 2020-05-27 US US16/884,931 patent/US11211090B2/en active Active
-
2021
- 2021-12-10 US US17/548,008 patent/US11710505B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| MY168096A (en) | 2018-10-11 |
| WO2017057686A1 (en) | 2017-04-06 |
| US11211090B2 (en) | 2021-12-28 |
| CN110503983A (en) | 2019-11-26 |
| US20220101877A1 (en) | 2022-03-31 |
| CN110503983B (en) | 2021-03-19 |
| JP6106813B1 (en) | 2017-04-05 |
| JP6577501B2 (en) | 2019-09-18 |
| US10720180B2 (en) | 2020-07-21 |
| CN107615381A (en) | 2018-01-19 |
| CN107615381B (en) | 2019-09-13 |
| US20180174606A1 (en) | 2018-06-21 |
| US20200286516A1 (en) | 2020-09-10 |
| US11710505B2 (en) | 2023-07-25 |
| JPWO2017057686A1 (en) | 2017-10-05 |
| JP2017130249A (en) | 2017-07-27 |
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