JP2020121920A5 - - Google Patents
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- Publication number
- JP2020121920A5 JP2020121920A5 JP2020073228A JP2020073228A JP2020121920A5 JP 2020121920 A5 JP2020121920 A5 JP 2020121920A5 JP 2020073228 A JP2020073228 A JP 2020073228A JP 2020073228 A JP2020073228 A JP 2020073228A JP 2020121920 A5 JP2020121920 A5 JP 2020121920A5
- Authority
- JP
- Japan
- Prior art keywords
- content
- magnetic recording
- glass
- oxide
- mgo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 claims 9
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims 3
- 125000006850 spacer group Chemical group 0.000 claims 3
- 239000000758 substrate Substances 0.000 claims 3
- 229910018068 Li 2 O Inorganic materials 0.000 claims 2
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims 2
- 229910010413 TiO 2 Inorganic materials 0.000 claims 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims 1
- 230000009477 glass transition Effects 0.000 claims 1
- 230000005484 gravity Effects 0.000 claims 1
- 239000000075 oxide glass Substances 0.000 claims 1
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022138270A JP7454021B2 (ja) | 2016-11-14 | 2022-08-31 | 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磁気記録再生装置用ガラススペーサ |
| JP2024035418A JP7734777B2 (ja) | 2016-11-14 | 2024-03-08 | 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磁気記録再生装置用ガラススペーサ |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016221389 | 2016-11-14 | ||
| JP2016221389 | 2016-11-14 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018550300A Division JP6694074B2 (ja) | 2016-11-14 | 2017-11-14 | 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磁気記録再生装置用ガラススペーサ |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022138270A Division JP7454021B2 (ja) | 2016-11-14 | 2022-08-31 | 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磁気記録再生装置用ガラススペーサ |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2020121920A JP2020121920A (ja) | 2020-08-13 |
| JP2020121920A5 true JP2020121920A5 (enExample) | 2020-12-24 |
| JP7135024B2 JP7135024B2 (ja) | 2022-09-12 |
Family
ID=62109170
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018550300A Active JP6694074B2 (ja) | 2016-11-14 | 2017-11-14 | 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磁気記録再生装置用ガラススペーサ |
| JP2020073228A Active JP7135024B2 (ja) | 2016-11-14 | 2020-04-16 | 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磁気記録再生装置用ガラススペーサ |
| JP2022138270A Active JP7454021B2 (ja) | 2016-11-14 | 2022-08-31 | 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磁気記録再生装置用ガラススペーサ |
| JP2024035418A Active JP7734777B2 (ja) | 2016-11-14 | 2024-03-08 | 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磁気記録再生装置用ガラススペーサ |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018550300A Active JP6694074B2 (ja) | 2016-11-14 | 2017-11-14 | 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磁気記録再生装置用ガラススペーサ |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022138270A Active JP7454021B2 (ja) | 2016-11-14 | 2022-08-31 | 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磁気記録再生装置用ガラススペーサ |
| JP2024035418A Active JP7734777B2 (ja) | 2016-11-14 | 2024-03-08 | 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磁気記録再生装置用ガラススペーサ |
Country Status (5)
| Country | Link |
|---|---|
| US (4) | US11081133B2 (enExample) |
| JP (4) | JP6694074B2 (enExample) |
| CN (2) | CN109923083B (enExample) |
| SG (1) | SG10202102247RA (enExample) |
| WO (1) | WO2018088563A1 (enExample) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG10202102247RA (en) * | 2016-11-14 | 2021-04-29 | Hoya Corp | Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium and glass spacer for magnetic recording and reproducing apparatus |
| JP7477296B2 (ja) * | 2017-02-27 | 2024-05-01 | ショット グラス テクノロジーズ （スゾウ） カンパニー リミテッド | 化学強化後に低膨張を示すリチウム含有アルミノケイ酸ガラス |
| MY204452A (en) * | 2018-05-16 | 2024-08-29 | Hoya Corp | Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus |
| JP7389545B2 (ja) * | 2018-12-10 | 2023-11-30 | 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 |
| JP7201808B2 (ja) * | 2019-06-28 | 2023-01-10 | Hoya株式会社 | ガラス板の製造方法および磁気ディスクの製造方法 |
| CN120441191A (zh) | 2019-07-22 | 2025-08-08 | Hoya株式会社 | 玻璃、磁记录介质基板、磁记录介质、磁记录再生装置用玻璃间隔物和磁记录再生装置 |
| CN114222722B (zh) * | 2019-07-29 | 2024-02-23 | Ａｇｃ株式会社 | 支承玻璃基板 |
| US11697608B2 (en) * | 2019-10-01 | 2023-07-11 | Owens-Brockway Glass Container Inc. | Selective chemical fining of small bubbles in glass |
| JP7392909B2 (ja) * | 2019-11-25 | 2023-12-06 | 日本電気硝子株式会社 | 磁気記録媒体用ガラス基板及びそれを用いた磁気記録装置 |
| US11999652B2 (en) * | 2019-12-13 | 2024-06-04 | Hoya Corporation | Glass for magnetic recording medium substrate or for glass spacer to be used in magnetic recording/reproducing device, magnetic recording medium substrate, magnetic recording medium, glass spacer to be used in magnetic recording/reproducing device, and magnetic recording/reproducing device |
| US20240158281A1 (en) * | 2021-03-05 | 2024-05-16 | Hoya Corporation | Glass for magnetic recording medium substrate or for glass spacer to be used in magnetic recording/reproducing device, magnetic recording medium substrate, magnetic recording medium, glass spacer to be used in magnetic recording/reproducing device, and magnetic recording/reproducing device |
| CN116964013A (zh) * | 2021-03-05 | 2023-10-27 | 豪雅株式会社 | 磁记录介质基板用玻璃或磁记录再生装置用玻璃间隔物用的玻璃、磁记录介质基板、磁记录介质、磁记录再生装置用玻璃间隔物和磁记录再生装置 |
| JP2023067765A (ja) * | 2021-10-29 | 2023-05-16 | Ａｇｃ株式会社 | ガラス及びガラスの製造方法 |
| KR20240116922A (ko) | 2021-11-29 | 2024-07-30 | 코닝 인코포레이티드 | 투명 베타-스포듀멘 유리-세라믹 |
| CN117486486A (zh) * | 2022-07-20 | 2024-02-02 | 荣耀终端有限公司 | 一种钇铝硅酸盐玻璃、制备方法及电子设备 |
| JP7766206B2 (ja) * | 2022-09-08 | 2025-11-07 | 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磁気記録再生装置 |
| WO2024190443A1 (ja) * | 2023-03-13 | 2024-09-19 | 株式会社オハラ | 結晶化ガラス |
| CN121039073A (zh) * | 2023-04-17 | 2025-11-28 | Ａｇｃ株式会社 | 玻璃 |
| CN121311450A (zh) * | 2023-05-18 | 2026-01-09 | 康宁股份有限公司 | 不含锂的可离子交换玻璃 |
| JP2025070576A (ja) * | 2023-10-20 | 2025-05-02 | 株式会社オハラ | 結晶相を含むガラス |
| JP2025070571A (ja) * | 2023-10-20 | 2025-05-02 | 株式会社オハラ | 結晶相を含むガラス |
| WO2025206374A1 (ja) * | 2024-03-29 | 2025-10-02 | Hoya株式会社 | 磁気記録装置、及び積層構造体 |
Family Cites Families (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3022524B1 (ja) * | 1998-02-26 | 2000-03-21 | 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 |
| US6344423B2 (en) * | 1998-02-26 | 2002-02-05 | Kabushiki Kaisha Ohara | High rigidity glass-ceramic substrate for a magnetic information storage medium |
| 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 |
| JP4086210B2 (ja) * | 1998-04-17 | 2008-05-14 | Ｈｏｙａ株式会社 | 情報記録媒体用基板 |
| JP4086211B2 (ja) * | 1998-04-17 | 2008-05-14 | Ｈｏｙａ株式会社 | ガラス組成物およびその製造方法 |
| JP2001039732A (ja) * | 1999-07-27 | 2001-02-13 | Ngk Insulators Ltd | 導電性ガラス組成物およびハードディスク用磁気記録媒体のアース用部品 |
| JP2001134925A (ja) | 1999-08-25 | 2001-05-18 | Asahi Glass Co Ltd | 情報記録媒体基板用ガラスおよび情報記録媒体用ガラス基板 |
| JP2001076336A (ja) | 1999-09-08 | 2001-03-23 | Hoya Corp | 情報記録媒体用ガラス基板およびそれを用いた情報記録媒体 |
| WO2001021539A1 (en) * | 1999-09-21 | 2001-03-29 | Kabushiki Kaisha Ohara | Holding member for information storage disk and information storage disk drive device |
| US6426311B1 (en) | 2000-02-01 | 2002-07-30 | Kabushiki Kaisha Ohara | Glass-ceramics |
| JP4136268B2 (ja) * | 2000-04-26 | 2008-08-20 | Ｈｏｙａ株式会社 | ガラススペーサおよびそれを用いた情報記録装置 |
| CN100379696C (zh) * | 2002-10-29 | 2008-04-09 | Hoya株式会社 | 化学强化玻璃、信息记录介质用基板及信息记录介质 |
| US8338319B2 (en) | 2008-12-22 | 2012-12-25 | Ocv Intellectual Capital, Llc | Composition for high performance glass fibers and fibers formed therewith |
| MY171124A (en) * | 2006-06-08 | 2019-09-26 | Hoya Corp | Glass for use as substrate for information recording medium,substrate for information recording medium and information recording medium, and their production methods |
| JP4467597B2 (ja) * | 2007-04-06 | 2010-05-26 | 株式会社オハラ | 無機組成物物品 |
| JP4755135B2 (ja) * | 2007-04-27 | 2011-08-24 | 株式会社オハラ | 結晶化ガラス |
| JP5292028B2 (ja) | 2008-09-10 | 2013-09-18 | 株式会社オハラ | ガラス |
| EP2465828A4 (en) | 2009-08-10 | 2014-03-26 | Hoya Corp | GLASS FOR MAGNETIC RECORDING MEDIUM SUBSTRATE, MAGNETIC RECORDING MEDIUM SUBSTRATE AND METHOD FOR PRODUCING THE SAME, AND MAGNETIC RECORDING MEDIUM |
| US20120052275A1 (en) * | 2010-08-30 | 2012-03-01 | Avanstrate Inc. | Glass substrate, chemically strengthened glass substrate and cover glass, and method for manufactruing the same |
| US8394516B2 (en) | 2010-10-29 | 2013-03-12 | Hoya Corporation | Glass substrate for magnetic recording medium and magnetic recording medium |
| US8652660B2 (en) | 2010-12-21 | 2014-02-18 | Hoya Corporation | Glass substrate for magnetic recording medium and its use |
| CN102531384B (zh) * | 2010-12-29 | 2019-02-22 | 安瀚视特股份有限公司 | 玻璃盖片及其制造方法 |
| JP5737043B2 (ja) * | 2011-07-29 | 2015-06-17 | 旭硝子株式会社 | 基板用ガラスおよびガラス基板 |
| CN103874668A (zh) * | 2011-08-23 | 2014-06-18 | Hoya株式会社 | 强化玻璃基板的制造方法和强化玻璃基板 |
| US8974561B2 (en) * | 2011-09-30 | 2015-03-10 | Hoya Corporation | Manufacturing method of glass substrate for magnetic disk, magnetic disk, and magnetic recording / reproducing device |
| CN104303231A (zh) * | 2012-05-16 | 2015-01-21 | Hoya株式会社 | 磁记录介质基板用玻璃及其利用 |
| SG11201601609RA (en) * | 2013-09-09 | 2016-04-28 | Hoya Corp | Glass substrate |
| JP6131154B2 (ja) * | 2013-09-11 | 2017-05-17 | Hoya株式会社 | 磁気記録媒体基板用ガラスおよび磁気記録媒体基板 |
| KR102601296B1 (ko) * | 2015-02-10 | 2023-11-14 | 닛본 이따 가라스 가부시끼가이샤 | 레이저 가공용 유리 및 그것을 사용한 구멍 있는 유리의 제조 방법 |
| SG10202102247RA (en) * | 2016-11-14 | 2021-04-29 | Hoya Corp | Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium and glass spacer for magnetic recording and reproducing apparatus |
| MY204452A (en) * | 2018-05-16 | 2024-08-29 | Hoya Corp | Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus |
| US11999652B2 (en) * | 2019-12-13 | 2024-06-04 | Hoya Corporation | Glass for magnetic recording medium substrate or for glass spacer to be used in magnetic recording/reproducing device, magnetic recording medium substrate, magnetic recording medium, glass spacer to be used in magnetic recording/reproducing device, and magnetic recording/reproducing device |
-
2017
- 2017-11-14 SG SG10202102247RA patent/SG10202102247RA/en unknown
- 2017-11-14 JP JP2018550300A patent/JP6694074B2/ja active Active
- 2017-11-14 WO PCT/JP2017/040833 patent/WO2018088563A1/ja not_active Ceased
- 2017-11-14 US US16/349,795 patent/US11081133B2/en active Active
- 2017-11-14 CN CN201780069628.9A patent/CN109923083B/zh active Active
- 2017-11-14 CN CN202210793597.4A patent/CN115072991B/zh active Active
-
2020
- 2020-04-16 JP JP2020073228A patent/JP7135024B2/ja active Active
-
2021
- 2021-06-24 US US17/357,281 patent/US11551714B2/en active Active
-
2022
- 2022-08-31 JP JP2022138270A patent/JP7454021B2/ja active Active
- 2022-12-06 US US18/075,606 patent/US12040003B2/en active Active
-
2024
- 2024-03-08 JP JP2024035418A patent/JP7734777B2/ja active Active
- 2024-06-04 US US18/732,851 patent/US12579997B2/en active Active
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