WO2009041618A1 - 磁気ディスク用ガラス基板及びその製造方法、磁気ディスク - Google Patents
磁気ディスク用ガラス基板及びその製造方法、磁気ディスク Download PDFInfo
- Publication number
- WO2009041618A1 WO2009041618A1 PCT/JP2008/067489 JP2008067489W WO2009041618A1 WO 2009041618 A1 WO2009041618 A1 WO 2009041618A1 JP 2008067489 W JP2008067489 W JP 2008067489W WO 2009041618 A1 WO2009041618 A1 WO 2009041618A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass substrate
- magnetic disk
- main surface
- producing
- stress
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
-
- 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
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/665,623 US8119267B2 (en) | 2007-09-28 | 2008-09-26 | Glass substrate for magnetic disk and manufacturing method of the same |
CN200880022948XA CN101689376B (zh) | 2007-09-28 | 2008-09-26 | 磁盘用玻璃基板及其制造方法、磁盘 |
US13/349,495 US8783063B2 (en) | 2007-09-28 | 2012-01-12 | Glass substrate for magnetic disk and manufacturing method of the same |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007255319 | 2007-09-28 | ||
JP2007-255139 | 2007-09-28 | ||
JP2007-255319 | 2007-09-28 | ||
JP2007255139 | 2007-09-28 | ||
JP2007-314521 | 2007-12-05 | ||
JP2007314521A JP5393974B2 (ja) | 2007-09-28 | 2007-12-05 | 磁気ディスク用ガラス基板の製造方法および磁気ディスク |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/665,623 A-371-Of-International US8119267B2 (en) | 2007-09-28 | 2008-09-26 | Glass substrate for magnetic disk and manufacturing method of the same |
US13/349,495 Division US8783063B2 (en) | 2007-09-28 | 2012-01-12 | Glass substrate for magnetic disk and manufacturing method of the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009041618A1 true WO2009041618A1 (ja) | 2009-04-02 |
Family
ID=40511498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/067489 WO2009041618A1 (ja) | 2007-09-28 | 2008-09-26 | 磁気ディスク用ガラス基板及びその製造方法、磁気ディスク |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2009041618A1 (ja) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013084337A (ja) * | 2011-09-30 | 2013-05-09 | Hoya Corp | 磁気ディスク用ガラス基板の製造方法、磁気ディスク、磁気記録再生装置 |
JP2013084336A (ja) * | 2011-09-30 | 2013-05-09 | Hoya Corp | 磁気ディスク用ガラス基板の製造方法、磁気ディスク、磁気記録再生装置 |
US9012343B2 (en) | 2011-03-17 | 2015-04-21 | Asahi Glass Company, Limited | Glass for chemical strengthening |
KR20170066605A (ko) * | 2014-10-08 | 2017-06-14 | 코닝 인코포레이티드 | 금속 산화물 농도 구배를 포함한 유리 및 유리 세라믹 |
KR20180122655A (ko) * | 2016-03-18 | 2018-11-13 | 코닝 인코포레이티드 | 강화된 리튬-계 유리 제품의 제조방법 및 리튬-계 유리 제품 |
US11174197B2 (en) | 2016-04-08 | 2021-11-16 | Corning Incorporated | Glass-based articles including a metal oxide concentration gradient |
US11267228B2 (en) | 2015-07-21 | 2022-03-08 | Corning Incorporated | Glass articles exhibiting improved fracture performance |
US11472734B2 (en) | 2015-12-11 | 2022-10-18 | Corning Incorporated | Fusion-formable glass-based articles including a metal oxide concentration gradient |
US11492291B2 (en) | 2012-02-29 | 2022-11-08 | Corning Incorporated | Ion exchanged glasses via non-error function compressive stress profiles |
CN115716714A (zh) * | 2018-07-03 | 2023-02-28 | Agc株式会社 | 化学强化玻璃及其制造方法 |
US11613103B2 (en) | 2015-07-21 | 2023-03-28 | Corning Incorporated | Glass articles exhibiting improved fracture performance |
US11724965B2 (en) | 2018-01-24 | 2023-08-15 | Corning Incorporated | Glass-based articles having high stress magnitude at depth |
US11878941B2 (en) | 2014-06-19 | 2024-01-23 | Corning Incorporated | Glasses having non-frangible stress profiles |
US11963320B2 (en) | 2016-04-08 | 2024-04-16 | Corning Incorporated | Glass-based articles including a stress profile comprising two regions |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
WO2005093720A1 (ja) * | 2004-03-25 | 2005-10-06 | Hoya Corporation | 磁気ディスク用ガラス基板 |
JP2007118174A (ja) * | 2005-09-29 | 2007-05-17 | Hoya Corp | 研磨ブラシ、研磨部材、研磨方法、研磨装置及び磁気ディスク用ガラス基板の製造方法、並びに磁気ディスクの製造方法 |
-
2008
- 2008-09-26 WO PCT/JP2008/067489 patent/WO2009041618A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
WO2005093720A1 (ja) * | 2004-03-25 | 2005-10-06 | Hoya Corporation | 磁気ディスク用ガラス基板 |
JP2007118174A (ja) * | 2005-09-29 | 2007-05-17 | Hoya Corp | 研磨ブラシ、研磨部材、研磨方法、研磨装置及び磁気ディスク用ガラス基板の製造方法、並びに磁気ディスクの製造方法 |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9012343B2 (en) | 2011-03-17 | 2015-04-21 | Asahi Glass Company, Limited | Glass for chemical strengthening |
JP2013084337A (ja) * | 2011-09-30 | 2013-05-09 | Hoya Corp | 磁気ディスク用ガラス基板の製造方法、磁気ディスク、磁気記録再生装置 |
JP2013084336A (ja) * | 2011-09-30 | 2013-05-09 | Hoya Corp | 磁気ディスク用ガラス基板の製造方法、磁気ディスク、磁気記録再生装置 |
US11492291B2 (en) | 2012-02-29 | 2022-11-08 | Corning Incorporated | Ion exchanged glasses via non-error function compressive stress profiles |
US11878941B2 (en) | 2014-06-19 | 2024-01-23 | Corning Incorporated | Glasses having non-frangible stress profiles |
KR20170066605A (ko) * | 2014-10-08 | 2017-06-14 | 코닝 인코포레이티드 | 금속 산화물 농도 구배를 포함한 유리 및 유리 세라믹 |
JP2017214282A (ja) * | 2014-10-08 | 2017-12-07 | コーニング インコーポレイテッド | 金属酸化物濃度勾配を有するガラスおよびガラスセラミック |
JP2018138518A (ja) * | 2014-10-08 | 2018-09-06 | コーニング インコーポレイテッド | 金属酸化物濃度勾配を有するガラスおよびガラスセラミック |
KR102005785B1 (ko) * | 2014-10-08 | 2019-07-31 | 코닝 인코포레이티드 | 금속 산화물 농도 구배를 포함한 유리 및 유리 세라믹 |
US11465937B2 (en) | 2014-10-08 | 2022-10-11 | Corning Incorporated | Glasses and glass ceramics including a metal oxide concentration gradient |
US11220456B2 (en) | 2014-10-08 | 2022-01-11 | Corning Incorporated | Glasses and glass ceramics including a metal oxide concentration gradient |
US11459270B2 (en) | 2014-10-08 | 2022-10-04 | Corning Incorporated | Glasses and glass ceramics including a metal oxide concentration gradient |
US11267228B2 (en) | 2015-07-21 | 2022-03-08 | Corning Incorporated | Glass articles exhibiting improved fracture performance |
US11613103B2 (en) | 2015-07-21 | 2023-03-28 | Corning Incorporated | Glass articles exhibiting improved fracture performance |
US11878936B2 (en) | 2015-12-11 | 2024-01-23 | Corning Incorporated | Fusion-formable glass-based articles including a metal oxide concentration gradient |
US11472734B2 (en) | 2015-12-11 | 2022-10-18 | Corning Incorporated | Fusion-formable glass-based articles including a metal oxide concentration gradient |
KR102396849B1 (ko) * | 2016-03-18 | 2022-05-11 | 코닝 인코포레이티드 | 강화된 리튬-계 유리 제품의 제조방법 및 리튬-계 유리 제품 |
JP6990192B2 (ja) | 2016-03-18 | 2022-01-12 | コーニング インコーポレイテッド | 強化リチウム系ガラス物品の製作方法およびリチウム系ガラス物品 |
JP2019509965A (ja) * | 2016-03-18 | 2019-04-11 | コーニング インコーポレイテッド | 強化リチウム系ガラス物品の製作方法およびリチウム系ガラス物品 |
KR20180122655A (ko) * | 2016-03-18 | 2018-11-13 | 코닝 인코포레이티드 | 강화된 리튬-계 유리 제품의 제조방법 및 리튬-계 유리 제품 |
US11174197B2 (en) | 2016-04-08 | 2021-11-16 | Corning Incorporated | Glass-based articles including a metal oxide concentration gradient |
US11963320B2 (en) | 2016-04-08 | 2024-04-16 | Corning Incorporated | Glass-based articles including a stress profile comprising two regions |
US11691913B2 (en) | 2016-04-08 | 2023-07-04 | Corning Incorporated | Glass-based articles including a metal oxide concentration gradient |
US11279652B2 (en) | 2016-04-08 | 2022-03-22 | Corning Incorporated | Glass-based articles including a metal oxide concentration gradient |
US11724965B2 (en) | 2018-01-24 | 2023-08-15 | Corning Incorporated | Glass-based articles having high stress magnitude at depth |
CN115716714B (zh) * | 2018-07-03 | 2024-02-13 | Agc株式会社 | 化学强化玻璃及其制造方法 |
CN115716714A (zh) * | 2018-07-03 | 2023-02-28 | Agc株式会社 | 化学强化玻璃及其制造方法 |
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