SG97155A1 - Substrate for information recording medium and magnetic recording medium composed of crystallized glass - Google Patents
Substrate for information recording medium and magnetic recording medium composed of crystallized glassInfo
- Publication number
- SG97155A1 SG97155A1 SG200003751A SG200003751A SG97155A1 SG 97155 A1 SG97155 A1 SG 97155A1 SG 200003751 A SG200003751 A SG 200003751A SG 200003751 A SG200003751 A SG 200003751A SG 97155 A1 SG97155 A1 SG 97155A1
- Authority
- SG
- Singapore
- Prior art keywords
- recording medium
- substrate
- information recording
- mol
- crystallized glass
- Prior art date
Links
Classifications
-
- 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
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0036—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and a divalent metal oxide as main constituents
- C03C10/0045—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and a divalent metal oxide as main constituents containing SiO2, Al2O3 and MgO as main constituents
-
- 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)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19357499 | 1999-07-07 | ||
JP29300399 | 1999-10-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
SG97155A1 true SG97155A1 (en) | 2003-07-18 |
Family
ID=26507953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200003751A SG97155A1 (en) | 1999-07-07 | 2000-07-05 | Substrate for information recording medium and magnetic recording medium composed of crystallized glass |
Country Status (5)
Country | Link |
---|---|
US (3) | US6627566B1 (zh) |
EP (1) | EP1067102B1 (zh) |
CN (1) | CN1230397C (zh) |
AT (1) | ATE537127T1 (zh) |
SG (1) | SG97155A1 (zh) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG97155A1 (en) * | 1999-07-07 | 2003-07-18 | Hoya Corp | Substrate for information recording medium and magnetic recording medium composed of crystallized glass |
DE10064808B4 (de) * | 2000-12-22 | 2005-09-01 | Schott Ag | Zinkoxidhaltiges Borosilicatglas und dessen Verwendungen |
JP3995902B2 (ja) * | 2001-05-31 | 2007-10-24 | Hoya株式会社 | 情報記録媒体用ガラス基板及びそれを用いた磁気情報記録媒体 |
US20030134734A1 (en) * | 2001-08-08 | 2003-07-17 | Shiro Nishimoto | Press molding method for glass and manufacturing method for glass substrate using this method |
JP4587257B2 (ja) * | 2001-10-24 | 2010-11-24 | Hoya株式会社 | ガラス、ガラス基板ブランクスおよびガラス基板それぞれの製造方法 |
JP4549184B2 (ja) * | 2002-06-03 | 2010-09-22 | Hoya株式会社 | 情報記録媒体用基板並びに情報記録媒体およびその製造方法 |
DE10245234B4 (de) | 2002-09-27 | 2011-11-10 | Schott Ag | Kristallisierbares Glas, seine Verwendung zur Herstellung einer hochsteifen, bruchfesten Glaskeramik mit gut polierbarer Oberfläche sowie Verwendung der Glaskeramik |
DE10346197B4 (de) | 2003-09-30 | 2006-02-16 | Schott Ag | Glaskeramik, Verfahren zur Herstellung einer solchen und Verwendung |
JP4771835B2 (ja) * | 2006-03-06 | 2011-09-14 | 株式会社リコー | トナー及び画像形成方法 |
US7465687B2 (en) * | 2006-05-31 | 2008-12-16 | Corning Incorporated | Tough cordierite glass-ceramics |
US7802478B2 (en) | 2007-06-27 | 2010-09-28 | Corning Incorporated | Methods and apparatus for measuring elastic modulus of non-solid ceramic materials by resonance |
JP5070006B2 (ja) * | 2007-11-02 | 2012-11-07 | 株式会社オハラ | 結晶化ガラス |
EP2065346A1 (en) | 2007-11-30 | 2009-06-03 | Corning Incorporated | High thermal conductivity cordierite glass-ceramic materials |
JP5658030B2 (ja) | 2008-03-19 | 2015-01-21 | Hoya株式会社 | 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体およびそれらの製造方法 |
WO2011019010A1 (ja) * | 2009-08-10 | 2011-02-17 | Hoya株式会社 | 磁気記録媒体基板用ガラス、磁気記録媒体基板およびその製造方法、ならびに磁気記録媒体 |
JP5788643B2 (ja) * | 2010-05-21 | 2015-10-07 | 株式会社オハラ | ガラス基板 |
US8394516B2 (en) * | 2010-10-29 | 2013-03-12 | Hoya Corporation | Glass substrate for magnetic recording medium and magnetic recording medium |
SG188775A1 (en) * | 2011-09-30 | 2013-04-30 | Hoya Corp | Manufacturing method of glass substrate for magnetic disk, magnetic disk, and magnetic data recording/reproducing device |
US8885447B2 (en) * | 2012-03-29 | 2014-11-11 | Hoya Corporation | Glass for magnetic recording medium substrate, glass substrate for magnetic recording medium, and their use |
CN104703939A (zh) * | 2012-06-29 | 2015-06-10 | 康宁股份有限公司 | 用于半导体加工的玻璃陶瓷基材 |
US9187365B2 (en) | 2013-02-25 | 2015-11-17 | Corning Incorporated | Methods for measuring the asymmetry of a glass-sheet manufacturing process |
CN106587612A (zh) * | 2016-12-23 | 2017-04-26 | 成都光明光电有限责任公司 | 玻璃组合物及其制备方法 |
EP4029840A4 (en) * | 2019-09-10 | 2023-12-06 | Nippon Sheet Glass Company, Limited | GLASS FILLER, METHOD FOR PRODUCING SAME, AND COMPOSITION CONTAINING A RESIN AND COMPRISING GLASS FILLER |
CN112939471A (zh) * | 2021-03-15 | 2021-06-11 | 武汉理工大学 | 一种高导热低膨胀低介电的微晶玻璃及其制备方法 |
CN112876067A (zh) * | 2021-03-17 | 2021-06-01 | 中国科学院过程工程研究所 | 一种高硬度高杨氏模量氧化物高熵玻璃及其制备方法和用途 |
CN113698082B (zh) * | 2021-09-10 | 2023-03-21 | 成都光明光电股份有限公司 | 微晶玻璃成型体的制造方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD127795A1 (de) * | 1976-08-26 | 1977-10-12 | Werner Vogel | Titandioxidhaltige glaskeramiken hoher mechanischer festigkeit |
GB2172282A (en) * | 1985-03-11 | 1986-09-17 | English Electric Co Ltd | Toughened glass-ceramics |
EP0265045A1 (en) * | 1986-10-24 | 1988-04-27 | Corning Glass Works | Refractory glass-ceramics containing enstatite |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE127795C (zh) | ||||
US2516553A (en) | 1946-12-23 | 1950-07-25 | Herman D Cole | Invalid handling apparatus |
US6245411B1 (en) * | 1959-09-25 | 2001-06-12 | Kabushiki Kaisha Ohara | High rigidity glass-ceramic substrate for a magnetic information storage medium |
JPS6452632A (en) | 1987-05-07 | 1989-02-28 | Asahi Glass Co Ltd | Production of crystallized glass |
JPH01239036A (ja) | 1988-03-16 | 1989-09-25 | F G K:Kk | 高強度ガラス |
JP2610033B2 (ja) | 1988-03-18 | 1997-05-14 | 古河電気工業株式会社 | 酸化物系超電導成形体の製造方法 |
JP2516553B2 (ja) | 1993-05-19 | 1996-07-24 | 株式会社オハラ | 磁気ディスク用結晶化ガラスおよびその製造方法 |
JP3126558B2 (ja) * | 1993-08-19 | 2001-01-22 | 株式会社トクヤマ | 結晶化ガラス |
JP2759763B2 (ja) | 1994-02-22 | 1998-05-28 | 株式会社オハラ | コージェライト系結晶化ガラスおよびその製造方法 |
US5476821A (en) | 1994-11-01 | 1995-12-19 | Corning Incorporated | High modulus glass-ceramics containing fine grained spinel-type crystals |
US5532194A (en) * | 1994-11-18 | 1996-07-02 | Kabushiki Kaisya Ohara | Cordierite glass-ceramic and method for manufacturing the same |
US5763059A (en) | 1995-03-31 | 1998-06-09 | Kyocera Corporation | Circuit board |
US5491116A (en) | 1995-04-03 | 1996-02-13 | Corning Incorporated | Fine-grained glass-ceramics |
KR20000057173A (ko) * | 1996-11-21 | 2000-09-15 | 알프레드 엘. 미첼슨 | β-석영을 기초로 한 유리-세라믹 |
JP3011703B1 (ja) * | 1998-02-26 | 2000-02-21 | 株式会社オハラ | 情報磁気記憶媒体用高剛性ガラスセラミックス基板 |
JP4323597B2 (ja) * | 1998-12-03 | 2009-09-02 | Hoya株式会社 | 情報記録ディスク用結晶化ガラス及びその製造方法 |
JP3996294B2 (ja) * | 1998-03-13 | 2007-10-24 | Hoya株式会社 | 結晶化ガラスからなる情報記録媒体用基板及び情報記録媒体 |
JP4323598B2 (ja) * | 1998-12-03 | 2009-09-02 | Hoya株式会社 | 情報記録ディスク用結晶化ガラス |
EP1577275B1 (en) * | 1998-03-13 | 2008-12-17 | Hoya Corporation | Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass |
JPH11278864A (ja) | 1998-03-30 | 1999-10-12 | Ngk Insulators Ltd | 磁気ディスク基板用結晶化ガラス、磁気ディスク基板および磁気ディスク |
JPH11278865A (ja) * | 1998-03-30 | 1999-10-12 | Ngk Insulators Ltd | 磁気ディスク基板用結晶化ガラス、磁気ディスク用基板、磁気ディスクおよび磁気ディスク基板用結晶化ガラスの製造方法 |
JP4680347B2 (ja) * | 1999-06-01 | 2011-05-11 | 株式会社オハラ | 高剛性ガラスセラミックス基板 |
SG97155A1 (en) * | 1999-07-07 | 2003-07-18 | Hoya Corp | Substrate for information recording medium and magnetic recording medium composed of crystallized glass |
SG98415A1 (en) * | 1999-07-07 | 2003-09-19 | Hoya Corp | Process for preparation of crystallized glass for information recording disk |
US6627565B1 (en) * | 1999-07-27 | 2003-09-30 | Hoya Corporation | Crystallized glass substrate for information recording medium |
-
2000
- 2000-07-05 SG SG200003751A patent/SG97155A1/en unknown
- 2000-07-07 US US09/610,687 patent/US6627566B1/en not_active Expired - Lifetime
- 2000-07-07 EP EP00114610A patent/EP1067102B1/en not_active Expired - Lifetime
- 2000-07-07 CN CNB001344013A patent/CN1230397C/zh not_active Expired - Fee Related
- 2000-07-07 AT AT00114610T patent/ATE537127T1/de active
-
2003
- 2003-07-03 US US10/612,015 patent/US6905988B2/en not_active Expired - Fee Related
-
2005
- 2005-03-18 US US11/083,201 patent/US7015161B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD127795A1 (de) * | 1976-08-26 | 1977-10-12 | Werner Vogel | Titandioxidhaltige glaskeramiken hoher mechanischer festigkeit |
GB2172282A (en) * | 1985-03-11 | 1986-09-17 | English Electric Co Ltd | Toughened glass-ceramics |
EP0265045A1 (en) * | 1986-10-24 | 1988-04-27 | Corning Glass Works | Refractory glass-ceramics containing enstatite |
Also Published As
Publication number | Publication date |
---|---|
ATE537127T1 (de) | 2011-12-15 |
EP1067102A3 (en) | 2001-10-31 |
EP1067102A2 (en) | 2001-01-10 |
CN1230397C (zh) | 2005-12-07 |
EP1067102B1 (en) | 2011-12-14 |
US20040018929A1 (en) | 2004-01-29 |
US20050164036A1 (en) | 2005-07-28 |
CN1293162A (zh) | 2001-05-02 |
US7015161B2 (en) | 2006-03-21 |
US6905988B2 (en) | 2005-06-14 |
US6627566B1 (en) | 2003-09-30 |
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