JP6186859B2 - 磁気記録媒体 - Google Patents

磁気記録媒体 Download PDF

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Publication number
JP6186859B2
JP6186859B2 JP2013096503A JP2013096503A JP6186859B2 JP 6186859 B2 JP6186859 B2 JP 6186859B2 JP 2013096503 A JP2013096503 A JP 2013096503A JP 2013096503 A JP2013096503 A JP 2013096503A JP 6186859 B2 JP6186859 B2 JP 6186859B2
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JP
Japan
Prior art keywords
magnetic recording
recording medium
layer
underlayer
seed layer
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.)
Active
Application number
JP2013096503A
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English (en)
Japanese (ja)
Other versions
JP2014220022A5 (enExample
JP2014220022A (ja
Inventor
隆嗣 相澤
隆嗣 相澤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP2013096503A priority Critical patent/JP6186859B2/ja
Priority to US14/250,097 priority patent/US20140329112A1/en
Priority to CN201410168632.9A priority patent/CN104134446B/zh
Publication of JP2014220022A publication Critical patent/JP2014220022A/ja
Priority to US14/879,976 priority patent/US10311908B2/en
Publication of JP2014220022A5 publication Critical patent/JP2014220022A5/ja
Application granted granted Critical
Publication of JP6186859B2 publication Critical patent/JP6186859B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G11B5/73—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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier 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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/658—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing oxygen, e.g. molecular oxygen or magnetic oxide
    • 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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7379—Seed layer, e.g. at least one non-magnetic layer is specifically adapted as a seed or seeding layer

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Magnetic Record Carriers (AREA)
JP2013096503A 2013-05-01 2013-05-01 磁気記録媒体 Active JP6186859B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2013096503A JP6186859B2 (ja) 2013-05-01 2013-05-01 磁気記録媒体
US14/250,097 US20140329112A1 (en) 2013-05-01 2014-04-10 Magnetic recording medium
CN201410168632.9A CN104134446B (zh) 2013-05-01 2014-04-24 磁记录介质
US14/879,976 US10311908B2 (en) 2013-05-01 2015-10-09 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013096503A JP6186859B2 (ja) 2013-05-01 2013-05-01 磁気記録媒体

Publications (3)

Publication Number Publication Date
JP2014220022A JP2014220022A (ja) 2014-11-20
JP2014220022A5 JP2014220022A5 (enExample) 2016-03-10
JP6186859B2 true JP6186859B2 (ja) 2017-08-30

Family

ID=51807097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013096503A Active JP6186859B2 (ja) 2013-05-01 2013-05-01 磁気記録媒体

Country Status (3)

Country Link
US (2) US20140329112A1 (enExample)
JP (1) JP6186859B2 (enExample)
CN (1) CN104134446B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6186859B2 (ja) 2013-05-01 2017-08-30 ソニー株式会社 磁気記録媒体
JP6307879B2 (ja) 2013-05-17 2018-04-11 ソニー株式会社 磁気記録媒体およびその製造方法
JP6205871B2 (ja) 2013-06-05 2017-10-04 ソニー株式会社 磁気記録媒体
JP6318540B2 (ja) 2013-10-22 2018-05-09 ソニー株式会社 磁気記録媒体
WO2019187731A1 (ja) * 2018-03-30 2019-10-03 ソニー株式会社 磁気記録テープと磁気記録テープカートリッジ
JP2020043133A (ja) * 2018-09-06 2020-03-19 キオクシア株式会社 磁気記憶装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6833173B1 (en) * 1999-09-27 2004-12-21 Fuji Photo Film Co., Ltd. Floppy disk including a seed layer and a primer layer with specified relative properties
JP2002260215A (ja) * 2001-02-28 2002-09-13 Fuji Electric Co Ltd 記録媒体用基板および記録媒体
JP2003346317A (ja) * 2002-05-23 2003-12-05 Fuji Photo Film Co Ltd 垂直磁気記録媒体
JP2005092991A (ja) * 2003-09-18 2005-04-07 Fuji Photo Film Co Ltd 磁気記録媒体
JP2005196885A (ja) * 2004-01-08 2005-07-21 Sony Corp 磁気記録媒体
JP4105654B2 (ja) * 2004-04-14 2008-06-25 富士通株式会社 垂直磁気記録媒体、磁気記憶装置、および垂直磁気記録媒体の製造方法
JP2006286106A (ja) * 2005-03-31 2006-10-19 Fujitsu Ltd 垂直磁気記録媒体および磁気記憶装置
JP2007164826A (ja) * 2005-12-09 2007-06-28 Fujifilm Corp 磁気記録媒体、磁気記録媒体の製造方法及びターゲット
JP2007257679A (ja) * 2006-03-20 2007-10-04 Fujitsu Ltd 磁気記録媒体、その製造方法、および磁気記憶装置
JP2008210498A (ja) * 2007-01-30 2008-09-11 Toray Ind Inc 強磁性金属薄膜型磁気記録媒体用支持体および強磁性金属薄膜型磁気記録媒体
WO2010064724A1 (ja) * 2008-12-05 2010-06-10 Hoya株式会社 磁気ディスク及びその製造方法
JP5569111B2 (ja) * 2009-06-23 2014-08-13 ソニー株式会社 磁気記録媒体およびその製造方法
JP6186859B2 (ja) 2013-05-01 2017-08-30 ソニー株式会社 磁気記録媒体
JP6307879B2 (ja) 2013-05-17 2018-04-11 ソニー株式会社 磁気記録媒体およびその製造方法
JP6205871B2 (ja) 2013-06-05 2017-10-04 ソニー株式会社 磁気記録媒体
JP6318540B2 (ja) 2013-10-22 2018-05-09 ソニー株式会社 磁気記録媒体

Also Published As

Publication number Publication date
CN104134446B (zh) 2019-01-15
US10311908B2 (en) 2019-06-04
US20160099018A1 (en) 2016-04-07
CN104134446A (zh) 2014-11-05
US20140329112A1 (en) 2014-11-06
JP2014220022A (ja) 2014-11-20

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