JP5799035B2 - 塗布型磁気記録媒体、磁気記録装置、および磁気記録方法 - Google Patents

塗布型磁気記録媒体、磁気記録装置、および磁気記録方法 Download PDF

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Publication number
JP5799035B2
JP5799035B2 JP2013020679A JP2013020679A JP5799035B2 JP 5799035 B2 JP5799035 B2 JP 5799035B2 JP 2013020679 A JP2013020679 A JP 2013020679A JP 2013020679 A JP2013020679 A JP 2013020679A JP 5799035 B2 JP5799035 B2 JP 5799035B2
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Prior art keywords
magnetic
heat
layer
recording
magnetic recording
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JP2013020679A
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English (en)
Japanese (ja)
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JP2014154178A (ja
JP2014154178A5 (enExample
Inventor
服部　康志
康志 服部
英宏 望月
英宏 望月
俊央 佐々木
俊央 佐々木
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Fujifilm Corp
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Fujifilm Corp
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Priority to JP2013020679A priority Critical patent/JP5799035B2/ja
Priority to US14/171,927 priority patent/US8947984B2/en
Publication of JP2014154178A publication Critical patent/JP2014154178A/ja
Publication of JP2014154178A5 publication Critical patent/JP2014154178A5/ja
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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
    • G11B5/733—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 characterised by the addition of non-magnetic particles
    • G11B5/7334—Base layer characterised by composition or structure
    • 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • 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
    • 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
    • G11B5/73923—Organic polymer substrates
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
    • 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites

Landscapes

  • Magnetic Record Carriers (AREA)
JP2013020679A 2013-02-05 2013-02-05 塗布型磁気記録媒体、磁気記録装置、および磁気記録方法 Active JP5799035B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2013020679A JP5799035B2 (ja) 2013-02-05 2013-02-05 塗布型磁気記録媒体、磁気記録装置、および磁気記録方法
US14/171,927 US8947984B2 (en) 2013-02-05 2014-02-04 Particulate magnetic recording medium and magnetic recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013020679A JP5799035B2 (ja) 2013-02-05 2013-02-05 塗布型磁気記録媒体、磁気記録装置、および磁気記録方法

Publications (3)

Publication Number Publication Date
JP2014154178A JP2014154178A (ja) 2014-08-25
JP2014154178A5 JP2014154178A5 (enExample) 2014-10-02
JP5799035B2 true JP5799035B2 (ja) 2015-10-21

Family

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Family Applications (1)

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JP2013020679A Active JP5799035B2 (ja) 2013-02-05 2013-02-05 塗布型磁気記録媒体、磁気記録装置、および磁気記録方法

Country Status (2)

Country Link
US (1) US8947984B2 (enExample)
JP (1) JP5799035B2 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015198514A1 (ja) 2014-06-24 2015-12-30 ソニー株式会社 磁気記録媒体
JP6632465B2 (ja) * 2016-04-28 2020-01-22 富士フイルム株式会社 マイクロ波アシスト記録用磁気記録媒体および磁気記録装置
JP7143764B2 (ja) * 2016-10-17 2022-09-29 ソニーグループ株式会社 磁性粉末およびその製造方法、ならびに磁気記録媒体
JP6649234B2 (ja) * 2016-11-30 2020-02-19 富士フイルム株式会社 ε−酸化鉄型強磁性粉末および磁気記録媒体
JP7115316B2 (ja) * 2016-12-20 2022-08-09 ソニーグループ株式会社 磁気記録媒体
US11574651B2 (en) 2017-01-13 2023-02-07 Sony Corporation Magnetic recording medium having -iron oxide-containing particles
WO2018180746A1 (ja) * 2017-03-30 2018-10-04 富士フイルム株式会社 光学フィルムならびにこれを有する画像表示装置の前面板、画像表示装置、画像表示機能付きミラ－、抵抗膜式タッチパネルおよび静電容量式タッチパネル
DE112018002254T5 (de) 2017-04-28 2020-01-23 Sony Corporation Magnetisches aufzeichnungsmedium
JP7207298B2 (ja) * 2017-05-01 2023-01-18 ソニーグループ株式会社 磁気記録媒体
JP7173005B2 (ja) * 2017-06-30 2022-11-16 ソニーグループ株式会社 磁気記録媒体
JP7029319B2 (ja) * 2018-03-13 2022-03-03 マクセル株式会社 熱アシスト記録用塗布型磁気記録媒体及びそれを用いた熱アシスト磁気記録装置と熱アシスト磁気記録方法
WO2019187356A1 (ja) * 2018-03-29 2019-10-03 国立大学法人東京大学 記録方法、記録装置、再生方法、再生装置、及び、高速応答素子
JP7132755B2 (ja) * 2018-06-07 2022-09-07 マクセル株式会社 熱アシスト記録用塗布型磁気記録媒体及びそれを用いたサーボ信号記録装置
US11514940B2 (en) * 2018-09-14 2022-11-29 Fujifilm Corporation Magnetic recording medium and magnetic recording and reproducing device
JP7105202B2 (ja) 2019-01-16 2022-07-22 富士フイルム株式会社 マイクロ波アシスト記録用磁気記録媒体、磁気記録装置、および磁気記録媒体の製造方法
JP7128158B2 (ja) * 2019-08-19 2022-08-30 富士フイルム株式会社 磁気テープ、磁気テープカートリッジおよび磁気記録再生装置
JP7247128B2 (ja) 2020-01-31 2023-03-28 富士フイルム株式会社 磁気テープ、磁気テープカートリッジおよび磁気テープ装置
CN114696305A (zh) 2020-12-29 2022-07-01 恩智浦有限公司 静电放电esd保护装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691645B1 (en) * 1994-07-08 1999-09-29 Fuji Photo Film Co., Ltd. Magnetic recording medium
US6493164B1 (en) * 1999-03-15 2002-12-10 Kabushiki Kaisha Toshiba Magnetic recording apparatus and method of magnetic recording
JP3294231B2 (ja) * 1999-03-15 2002-06-24 株式会社東芝 磁気記録装置および磁気記録方法
JP2003077115A (ja) * 2001-09-03 2003-03-14 Fuji Photo Film Co Ltd 磁気記録媒体及びそれへの記録方法
JP2007149306A (ja) * 2005-10-27 2007-06-14 Tdk Corp 光記録媒体及びその製造方法
JP4730905B2 (ja) * 2006-03-17 2011-07-20 国立大学法人 東京大学 磁性材料並びにそれを用いたメモリーおよびセンサ
JP2008052869A (ja) * 2006-08-28 2008-03-06 Hitachi Global Storage Technologies Netherlands Bv 熱アシスト磁気記録媒体、及び磁気記録再生装置
JP4728916B2 (ja) * 2006-08-31 2011-07-20 国立大学法人 東京大学 磁性材料
JP2008071455A (ja) * 2006-09-15 2008-03-27 Matsushita Electric Ind Co Ltd 磁気記録媒体とその製造方法、および、磁気記録媒体の記録再生装置と記録再生方法
US7670696B2 (en) * 2007-05-01 2010-03-02 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording medium with patterned magnetic islands and nonmagnetic trenches and manufacturing method for suppressing surface diffusion of trench material
JP2009179771A (ja) * 2008-02-01 2009-08-13 Panasonic Corp 熱伝導性樹脂ペーストおよびそれを用いた光ディスク装置

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JP2014154178A (ja) 2014-08-25
US20140219069A1 (en) 2014-08-07
US8947984B2 (en) 2015-02-03

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