SG10202101868SA - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
SG10202101868SA
SG10202101868SA SG10202101868SA SG10202101868SA SG10202101868SA SG 10202101868S A SG10202101868S A SG 10202101868SA SG 10202101868S A SG10202101868S A SG 10202101868SA SG 10202101868S A SG10202101868S A SG 10202101868SA SG 10202101868S A SG10202101868S A SG 10202101868SA
Authority
SG
Singapore
Prior art keywords
recording medium
magnetic recording
magnetic
medium
recording
Prior art date
Application number
SG10202101868SA
Other languages
English (en)
Inventor
Hiroyasu Kataoka
Tsuyoshi Yoshizawa
Tomohiro Moriya
Shinji Uchida
Hirohisa Oyama
Takehito Shimatsu
Original Assignee
Fuji Electric Co Ltd
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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of SG10202101868SA publication Critical patent/SG10202101868SA/en

Links

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
    • G11B5/7379—Seed layer, e.g. at least one non-magnetic layer is specifically adapted as a seed or seeding 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
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of 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
    • G11B5/68—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
    • 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
    • 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
    • G11B5/73—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
    • G11B5/737—Physical structure of underlayer, e.g. texture

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
SG10202101868SA 2017-03-10 2018-01-29 Magnetic recording medium SG10202101868SA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017046648 2017-03-10

Publications (1)

Publication Number Publication Date
SG10202101868SA true SG10202101868SA (en) 2021-03-30

Family

ID=63448697

Family Applications (2)

Application Number Title Priority Date Filing Date
SG11201901734YA SG11201901734YA (en) 2017-03-10 2018-01-29 Magnetic recording medium
SG10202101868SA SG10202101868SA (en) 2017-03-10 2018-01-29 Magnetic recording medium

Family Applications Before (1)

Application Number Title Priority Date Filing Date
SG11201901734YA SG11201901734YA (en) 2017-03-10 2018-01-29 Magnetic recording medium

Country Status (5)

Country Link
US (1) US11120829B2 (ja)
JP (2) JP6665963B2 (ja)
CN (2) CN112382315A (ja)
SG (2) SG11201901734YA (ja)
WO (1) WO2018163658A1 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7258275B2 (ja) * 2019-05-09 2023-04-17 株式会社レゾナック 磁気記録媒体および磁気記録再生装置
JP7336786B2 (ja) * 2019-10-31 2023-09-01 株式会社レゾナック アシスト磁気記録媒体及び磁気記憶装置
JP7375676B2 (ja) * 2020-05-21 2023-11-08 株式会社レゾナック 磁気記録媒体および磁気記憶装置
US12068012B2 (en) 2020-05-29 2024-08-20 Sony Group Corporation Magnetic recording medium
US11763845B2 (en) * 2021-12-08 2023-09-19 Seagate Technology Llc Magnetic stack including non-magnetic seed layer for hard disk drive media

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4757400B2 (ja) * 2001-05-09 2011-08-24 昭和電工株式会社 垂直磁気記録媒体、および磁気記録再生装置
JP2005276364A (ja) * 2004-03-25 2005-10-06 Toshiba Corp 磁気記録媒体及びその製造法、並びにそれを用いた磁気記録再生装置
JP2009059431A (ja) * 2007-08-31 2009-03-19 Showa Denko Kk 磁気記録媒体および磁気記録再生装置
US7892664B2 (en) * 2007-11-28 2011-02-22 Seagate Technology Llc Magnetic recording media having a chemically ordered magnetic layer
JP2009158053A (ja) * 2007-12-27 2009-07-16 Hitachi Global Storage Technologies Netherlands Bv 傾斜記録用磁気記録媒体及びその製造方法
JP5015901B2 (ja) * 2008-12-01 2012-09-05 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
JP6182833B2 (ja) * 2012-07-26 2017-08-23 富士電機株式会社 垂直磁気記録媒体
JP6083163B2 (ja) * 2012-09-11 2017-02-22 富士電機株式会社 垂直磁気記録媒体およびその製造方法
WO2014052344A1 (en) * 2012-09-27 2014-04-03 Seagate Technology Llc Magnetic stack including tin-x intermediate layer
SG11201502573SA (en) * 2012-10-10 2015-05-28 Fuji Electric Co Ltd Magnetic recording medium
JP6265529B2 (ja) 2013-01-23 2018-01-24 昭和電工株式会社 磁気記録媒体の製造方法、磁気記録媒体及び磁気記録再生装置
US9672854B2 (en) * 2013-09-30 2017-06-06 Seagate Technology Llc Magnetic stack including MgO-Ti(ON) interlayer
JP5999277B2 (ja) * 2013-12-10 2016-09-28 富士電機株式会社 垂直磁気記録媒体
US9689065B2 (en) * 2014-01-03 2017-06-27 Seagate Technology Llc Magnetic stack including crystallized segregant induced columnar magnetic recording layer
US20170301366A1 (en) * 2014-01-03 2017-10-19 National University Of Singapore Magnetic stack including crystallized segregant induced columnar magnetic recording layer
JP2016003596A (ja) 2014-06-16 2016-01-12 株式会社ミツバ オイルポンプおよび車両用油圧回路
MY163246A (en) * 2014-08-12 2017-08-30 Fuji Electric Co Ltd Magnetic recording medium
US9431046B2 (en) * 2014-10-31 2016-08-30 HGST Netherlands B.V. Perpendicular magnetic recording disk with patterned template layer
SG11201708016SA (en) * 2015-06-02 2017-12-28 Fuji Electric Co Ltd Method for producing magnetic recording medium
WO2017122593A1 (ja) * 2016-01-12 2017-07-20 富士電機株式会社 磁気記録媒体およびこれを製造する方法
CN105810216A (zh) * 2016-03-03 2016-07-27 广东顺德中山大学卡内基梅隆大学国际联合研究院 应用于热辅助磁记录技术的磁存储介质薄膜的制备方法
JP2018106774A (ja) * 2016-12-27 2018-07-05 昭和電工株式会社 磁気記録媒体および磁気記憶装置

Also Published As

Publication number Publication date
WO2018163658A1 (ja) 2018-09-13
JP6835190B2 (ja) 2021-02-24
US11120829B2 (en) 2021-09-14
JPWO2018163658A1 (ja) 2019-06-27
JP6665963B2 (ja) 2020-03-13
JP2020030880A (ja) 2020-02-27
US20190198051A1 (en) 2019-06-27
CN109643556B (zh) 2021-03-12
CN109643556A (zh) 2019-04-16
CN112382315A (zh) 2021-02-19
SG11201901734YA (en) 2019-04-29

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