WO2009044733A1 - 垂直磁気記録媒体および磁気記録再生装置 - Google Patents
垂直磁気記録媒体および磁気記録再生装置 Download PDFInfo
- Publication number
- WO2009044733A1 WO2009044733A1 PCT/JP2008/067744 JP2008067744W WO2009044733A1 WO 2009044733 A1 WO2009044733 A1 WO 2009044733A1 JP 2008067744 W JP2008067744 W JP 2008067744W WO 2009044733 A1 WO2009044733 A1 WO 2009044733A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic recording
- recording layer
- recording medium
- layer
- magnetic
- Prior art date
Links
- 239000010410 layer Substances 0.000 abstract 11
- 239000000758 substrate Substances 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 2
- 229910001004 magnetic alloy Inorganic materials 0.000 abstract 1
- 239000011241 protective layer Substances 0.000 abstract 1
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
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
- G11B5/672—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having different compositions in a plurality of magnetic layers, e.g. layer compositions having differing elemental components or differing proportions of elements
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/678,086 US8367229B2 (en) | 2007-10-03 | 2008-09-30 | Perpendicular magnetic recording medium and magnetic recording and reproducing apparatus |
CN2008801093190A CN101809659B (zh) | 2007-10-03 | 2008-09-30 | 垂直磁记录介质和磁记录再生装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007259306A JP2009087501A (ja) | 2007-10-03 | 2007-10-03 | 垂直磁気記録媒体および磁気記録再生装置 |
JP2007-259306 | 2007-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009044733A1 true WO2009044733A1 (ja) | 2009-04-09 |
Family
ID=40526160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/067744 WO2009044733A1 (ja) | 2007-10-03 | 2008-09-30 | 垂直磁気記録媒体および磁気記録再生装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8367229B2 (ja) |
JP (1) | JP2009087501A (ja) |
CN (1) | CN101809659B (ja) |
WO (1) | WO2009044733A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011081873A (ja) * | 2009-10-07 | 2011-04-21 | Ulvac Japan Ltd | 垂直磁気記録媒体用記録層、垂直磁気記録媒体、及び強磁性金属膜の作製方法 |
US20110242702A1 (en) * | 2010-03-30 | 2011-10-06 | Kabushiki Kaisha Toshiba | Magnetic recording medium, method of manufacturing the same, and magnetic recording/reproduction apparatus |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5670638B2 (ja) * | 2010-01-26 | 2015-02-18 | 昭和電工株式会社 | 熱アシスト磁気記録媒体及び磁気記録再生装置 |
JP2011216141A (ja) * | 2010-03-31 | 2011-10-27 | Wd Media Singapore Pte Ltd | 垂直磁気ディスクの製造方法 |
JP5638281B2 (ja) * | 2010-04-30 | 2014-12-10 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | 垂直磁気ディスク |
JP5634749B2 (ja) * | 2010-05-21 | 2014-12-03 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | 垂直磁気ディスク |
US8630060B2 (en) * | 2012-03-09 | 2014-01-14 | HGST Netherlands B.V. | Thermally enabled exchange coupled media for magnetic data recording |
US9808435B2 (en) * | 2013-03-12 | 2017-11-07 | Ecolab Usa Inc. | Antiviral compositions and methods for inactivating non-enveloped viruses using alkyl 2-hydroxycarboxylic acids |
JP6260517B2 (ja) * | 2014-11-20 | 2018-01-17 | 富士電機株式会社 | 磁気記録媒体およびその製造方法 |
US9558777B2 (en) | 2014-11-26 | 2017-01-31 | HGST Netherlands B.V. | Heat assisted magnetic recording (HAMR) media having a highly ordered crystalline structure |
US9129638B1 (en) * | 2015-01-22 | 2015-09-08 | HGST Netherlands B.V. | High performance perpendicular magnetic granular media consisting of multiple exchange control layers |
JP2017224371A (ja) * | 2016-06-15 | 2017-12-21 | 昭和電工株式会社 | 磁気記録媒体及び磁気記憶装置 |
CN116854364A (zh) | 2018-05-16 | 2023-10-10 | Hoya株式会社 | 磁记录介质基板用玻璃和磁记录再生装置用玻璃间隔物 |
CN112585295B (zh) * | 2018-08-09 | 2023-04-04 | Jx金属株式会社 | 溅射靶、磁性膜以及垂直磁记录介质 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006048900A (ja) * | 2004-07-05 | 2006-02-16 | Fuji Electric Device Technology Co Ltd | 垂直磁気記録媒体 |
JP2008090913A (ja) * | 2006-09-29 | 2008-04-17 | Hoya Corp | 磁気記録媒体 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6627301B2 (en) * | 2000-03-28 | 2003-09-30 | Showa Denko Kabushiki Kaisha | Magnetic recording medium |
JP2002358616A (ja) * | 2000-06-12 | 2002-12-13 | Toshiba Corp | 磁気記録媒体および磁気記録装置 |
JP2003346317A (ja) * | 2002-05-23 | 2003-12-05 | Fuji Photo Film Co Ltd | 垂直磁気記録媒体 |
KR100699822B1 (ko) * | 2002-09-19 | 2007-03-27 | 삼성전자주식회사 | 수직자기기록 매체 |
US7470474B2 (en) * | 2003-04-07 | 2008-12-30 | Kabushiki Kaisha Toshiba | Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus including both oxide and non-oxide perpendicular magnetic layers |
JP4580817B2 (ja) | 2005-05-27 | 2010-11-17 | 株式会社東芝 | 垂直磁気記録媒体及び垂直磁気記録再生装置 |
JP4405436B2 (ja) | 2005-06-13 | 2010-01-27 | 国立大学法人東北大学 | 負異方性交換結合型磁気記録媒体及び磁気記録再生装置 |
WO2006135034A1 (en) * | 2005-06-13 | 2006-12-21 | Tohoku University | Magnetic recording medium and magnetic recording and reproducing apparatus |
JP2008226416A (ja) * | 2007-03-16 | 2008-09-25 | Fuji Electric Device Technology Co Ltd | 垂直磁気記録媒体とその製造方法 |
JP5088629B2 (ja) * | 2008-08-22 | 2012-12-05 | 昭和電工株式会社 | 磁気記録媒体および磁気記録再生装置 |
-
2007
- 2007-10-03 JP JP2007259306A patent/JP2009087501A/ja active Pending
-
2008
- 2008-09-30 CN CN2008801093190A patent/CN101809659B/zh active Active
- 2008-09-30 WO PCT/JP2008/067744 patent/WO2009044733A1/ja active Application Filing
- 2008-09-30 US US12/678,086 patent/US8367229B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006048900A (ja) * | 2004-07-05 | 2006-02-16 | Fuji Electric Device Technology Co Ltd | 垂直磁気記録媒体 |
JP2008090913A (ja) * | 2006-09-29 | 2008-04-17 | Hoya Corp | 磁気記録媒体 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011081873A (ja) * | 2009-10-07 | 2011-04-21 | Ulvac Japan Ltd | 垂直磁気記録媒体用記録層、垂直磁気記録媒体、及び強磁性金属膜の作製方法 |
US20110242702A1 (en) * | 2010-03-30 | 2011-10-06 | Kabushiki Kaisha Toshiba | Magnetic recording medium, method of manufacturing the same, and magnetic recording/reproduction apparatus |
US10100398B2 (en) | 2010-03-30 | 2018-10-16 | Kabushiki Kaisha Toshiba | Magnetic recording medium, method of manufacturing the same, and magnetic recording/reproduction apparatus |
Also Published As
Publication number | Publication date |
---|---|
US8367229B2 (en) | 2013-02-05 |
JP2009087501A (ja) | 2009-04-23 |
CN101809659A (zh) | 2010-08-18 |
US20100246060A1 (en) | 2010-09-30 |
CN101809659B (zh) | 2012-10-17 |
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