SG115799A1 - Magnetic recording medium and magnetic recording apparatus - Google Patents

Magnetic recording medium and magnetic recording apparatus

Info

Publication number
SG115799A1
SG115799A1 SG200501859A SG200501859A SG115799A1 SG 115799 A1 SG115799 A1 SG 115799A1 SG 200501859 A SG200501859 A SG 200501859A SG 200501859 A SG200501859 A SG 200501859A SG 115799 A1 SG115799 A1 SG 115799A1
Authority
SG
Singapore
Prior art keywords
magnetic recording
recording medium
recording apparatus
medium
magnetic
Prior art date
Application number
SG200501859A
Other languages
English (en)
Inventor
Maeda Tomoyuki
Kikitsu Akira
Oikawa Soichi
Iwasaki Takeshi
Original Assignee
Toshiba Kk
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 Toshiba Kk filed Critical Toshiba Kk
Publication of SG115799A1 publication Critical patent/SG115799A1/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
    • G11B5/736—Non-magnetic layer under a soft magnetic layer, e.g. between a substrate and a soft magnetic underlayer [SUL] or a keeper layer
    • G11B5/7367—Physical structure of underlayer, e.g. texture
    • 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
    • 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
    • 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
    • G11B5/7377—Physical structure of underlayer, e.g. texture
SG200501859A 2004-03-25 2005-03-24 Magnetic recording medium and magnetic recording apparatus SG115799A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004090672A JP4585214B2 (ja) 2004-03-25 2004-03-25 磁気記録媒体及びそれを用いた磁気記録再生装置

Publications (1)

Publication Number Publication Date
SG115799A1 true SG115799A1 (en) 2005-10-28

Family

ID=34990295

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200501859A SG115799A1 (en) 2004-03-25 2005-03-24 Magnetic recording medium and magnetic recording apparatus

Country Status (4)

Country Link
US (1) US7622204B2 (ja)
JP (1) JP4585214B2 (ja)
CN (1) CN100347756C (ja)
SG (1) SG115799A1 (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4874526B2 (ja) * 2004-03-25 2012-02-15 株式会社東芝 磁気記録媒体及び磁気記録媒体の製造法、並びに磁気記録再生装置
JP4585214B2 (ja) * 2004-03-25 2010-11-24 株式会社東芝 磁気記録媒体及びそれを用いた磁気記録再生装置
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
US20070099032A1 (en) * 2005-11-02 2007-05-03 Heraeus, Inc., A Corporation Of The State Of Arizona Deposition of enhanced seed layer using tantalum alloy based sputter target
US20070111036A1 (en) * 2005-11-16 2007-05-17 Masaru Ito Substrate for magnetic recording medium and fabrication method thereof
US20070190364A1 (en) * 2006-02-14 2007-08-16 Heraeus, Inc. Ruthenium alloy magnetic media and sputter targets
EP1845554A3 (en) * 2006-04-10 2011-07-13 Imec A method to create super secondary grain growth in narrow trenches
US20080057350A1 (en) * 2006-09-01 2008-03-06 Heraeus, Inc. Magnetic media and sputter targets with compositions of high anisotropy alloys and oxide compounds
JP5397926B2 (ja) 2007-08-31 2014-01-22 昭和電工株式会社 垂直磁気記録媒体、その製造方法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
JP5177407B2 (ja) * 2008-07-16 2013-04-03 学校法人早稲田大学 磁気異方性垂直磁化膜及びその形成方法並びに磁気記録媒体及びその製造方法
JP2010153031A (ja) * 2010-03-02 2010-07-08 Toshiba Corp 磁気記録媒体及びそれを用いた磁気記録再生装置
JP4746701B2 (ja) * 2010-03-02 2011-08-10 株式会社東芝 磁気記録媒体及び磁気記録媒体の製造法、並びに磁気記録再生装置
JP6014385B2 (ja) * 2012-05-14 2016-10-25 昭和電工株式会社 磁気記録媒体及び磁気記録再生装置
US20140242419A1 (en) * 2013-02-28 2014-08-28 Showa Denko Hd Singapore Pte Ltd. Perpendicular recording medium for hard disk drives
JP6145332B2 (ja) * 2013-06-20 2017-06-07 昭和電工株式会社 磁気記録媒体、磁気記憶装置

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Publication number Priority date Publication date Assignee Title
JP2937199B2 (ja) 1989-03-06 1999-08-23 株式会社日立製作所 面内磁気記録媒体及びその製造方法並びに磁気記憶装置
KR920001998B1 (en) 1989-06-03 1992-03-09 Samsung Electronic E.f.m. signal recording and playing back circuit of optical recording and playing back device
JPH03235218A (ja) 1990-02-08 1991-10-21 Kobe Steel Ltd 磁気記録媒体の製造方法
JPH05135342A (ja) 1991-11-14 1993-06-01 Hitachi Metals Ltd 磁気記録媒体
JPH06259764A (ja) 1993-03-09 1994-09-16 Kao Corp 磁気記録媒体用磁性塗料の電磁変換特性評価装置
JPH06314421A (ja) * 1993-05-06 1994-11-08 Konica Corp 磁気記録媒体
JPH07334832A (ja) 1994-06-08 1995-12-22 Hitachi Ltd 垂直磁気記録媒体及び磁気記録装置
JPH09282635A (ja) * 1996-04-17 1997-10-31 Fuji Photo Film Co Ltd 磁気記録媒体
TW390998B (en) * 1996-05-20 2000-05-21 Hitachi Ltd Magnetic recording media and magnetic recording system using the same
JP3318204B2 (ja) * 1996-05-31 2002-08-26 財団法人電気磁気材料研究所 垂直磁化膜およびその製造法ならびに 垂直磁気記録媒体
JPH1092637A (ja) 1996-09-13 1998-04-10 Fujitsu Ltd 磁気記録媒体及び装置
JP3684047B2 (ja) * 1997-09-30 2005-08-17 株式会社東芝 磁気記録媒体
US6248416B1 (en) * 1997-11-10 2001-06-19 Carnegie Mellon University Highly oriented magnetic thin films, recording media, transducers, devices made therefrom and methods of making
JP2000123343A (ja) * 1998-10-12 2000-04-28 Hitachi Ltd 磁気記録媒体およびそれを用いた磁気記録再生装置
JP2000123306A (ja) 1998-10-14 2000-04-28 Sony Corp ディスクドライブ装置、ディスクドライブ制御装置及びシステム
AU1178700A (en) * 1998-11-13 2000-06-05 Sanyo Electric Co., Ltd. Method of optimizing reproduction laser power for magneto-optic recording mediumand magneto-optic disk unit using the method
JP2000200410A (ja) 1999-01-07 2000-07-18 Hitachi Ltd 磁気記録媒体、磁気記録媒体の製造方法及び磁気記録装置
JP2002541671A (ja) * 1999-03-30 2002-12-03 ドイッチェ テレコム アーゲー 制御キャビネット
JP3476740B2 (ja) 1999-06-08 2003-12-10 富士通株式会社 磁気記録媒体
JP3665261B2 (ja) 2000-09-01 2005-06-29 株式会社日立製作所 垂直磁気記録媒体および磁気記憶装置
CN1500267A (zh) * 2001-03-26 2004-05-26 日立麦克塞尔株式会社 光磁记录介质及其再生方法
AU2003221347A1 (en) * 2002-03-15 2003-09-29 Canon Kabushiki Kaisha Functional device and method of manufacturing the device, vertical magnetic recording medium, magnetic recording and reproducing device, and information processing device
JP2003338029A (ja) 2002-05-22 2003-11-28 Showa Denko Kk 磁気記録媒体、その製造方法および磁気記録再生装置
JP2003338019A (ja) * 2002-05-22 2003-11-28 Hitachi Ltd 磁気記録媒体、及びその製造方法
JP4224804B2 (ja) * 2002-06-19 2009-02-18 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体の製造方法
JP2004079058A (ja) 2002-08-14 2004-03-11 Toshiba Corp 垂直磁気記録媒体及び磁気記録再生装置
JP4211436B2 (ja) * 2003-03-05 2009-01-21 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体およびその製造方法
JP3981732B2 (ja) * 2003-03-27 2007-09-26 独立行政法人物質・材料研究機構 垂直磁気異方性を有するＦｅＰｔ磁性薄膜とその製造方法
JP4585214B2 (ja) * 2004-03-25 2010-11-24 株式会社東芝 磁気記録媒体及びそれを用いた磁気記録再生装置
JP4874526B2 (ja) 2004-03-25 2012-02-15 株式会社東芝 磁気記録媒体及び磁気記録媒体の製造法、並びに磁気記録再生装置
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

Also Published As

Publication number Publication date
JP2005276366A (ja) 2005-10-06
CN1674101A (zh) 2005-09-28
US7622204B2 (en) 2009-11-24
US20050214590A1 (en) 2005-09-29
JP4585214B2 (ja) 2010-11-24
CN100347756C (zh) 2007-11-07

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