JP3721011B2 - 情報記録媒体及びそれを用いた磁気記憶装置、光磁気記憶装置 - Google Patents

情報記録媒体及びそれを用いた磁気記憶装置、光磁気記憶装置 Download PDF

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Publication number
JP3721011B2
JP3721011B2 JP18142899A JP18142899A JP3721011B2 JP 3721011 B2 JP3721011 B2 JP 3721011B2 JP 18142899 A JP18142899 A JP 18142899A JP 18142899 A JP18142899 A JP 18142899A JP 3721011 B2 JP3721011 B2 JP 3721011B2
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JP
Japan
Prior art keywords
magnetic
recording medium
film
magneto
inorganic compound
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.)
Expired - Fee Related
Application number
JP18142899A
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English (en)
Japanese (ja)
Other versions
JP2001014633A (ja
JP2001014633A5 (enExample
Inventor
文良 桐野
信幸 稲葉
浩貴 山本
内藤　　孝
高橋　　研
栄二 小山
元康 寺尾
純男 保坂
浩樹 蔵本
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell Energy 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 Hitachi Maxell Energy Ltd filed Critical Hitachi Maxell Energy Ltd
Priority to JP18142899A priority Critical patent/JP3721011B2/ja
Priority to US09/604,132 priority patent/US6534206B1/en
Publication of JP2001014633A publication Critical patent/JP2001014633A/ja
Priority to US10/349,440 priority patent/US6749955B2/en
Publication of JP2001014633A5 publication Critical patent/JP2001014633A5/ja
Application granted granted Critical
Publication of JP3721011B2 publication Critical patent/JP3721011B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the 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
    • G11B5/64—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
    • G11B5/676—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 magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer
    • G11B5/678—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 magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer having three or more magnetic 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
    • G11B5/7371—Non-magnetic single underlayer comprising nickel
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less

Landscapes

  • Magnetic Record Carriers (AREA)
JP18142899A 1999-06-28 1999-06-28 情報記録媒体及びそれを用いた磁気記憶装置、光磁気記憶装置 Expired - Fee Related JP3721011B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP18142899A JP3721011B2 (ja) 1999-06-28 1999-06-28 情報記録媒体及びそれを用いた磁気記憶装置、光磁気記憶装置
US09/604,132 US6534206B1 (en) 1999-06-28 2000-06-27 Information recording media and information recording drive
US10/349,440 US6749955B2 (en) 1999-06-28 2003-01-23 Information recording media and information recording drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18142899A JP3721011B2 (ja) 1999-06-28 1999-06-28 情報記録媒体及びそれを用いた磁気記憶装置、光磁気記憶装置

Publications (3)

Publication Number Publication Date
JP2001014633A JP2001014633A (ja) 2001-01-19
JP2001014633A5 JP2001014633A5 (enExample) 2004-10-28
JP3721011B2 true JP3721011B2 (ja) 2005-11-30

Family

ID=16100613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18142899A Expired - Fee Related JP3721011B2 (ja) 1999-06-28 1999-06-28 情報記録媒体及びそれを用いた磁気記憶装置、光磁気記憶装置

Country Status (2)

Country Link
US (2) US6534206B1 (enExample)
JP (1) JP3721011B2 (enExample)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000068941A1 (en) * 1999-05-11 2000-11-16 Hitachi Maxell, Ltd. Magnetic recording medium and its production method, and magnetic recorder
JP3721011B2 (ja) * 1999-06-28 2005-11-30 日立マクセル株式会社 情報記録媒体及びそれを用いた磁気記憶装置、光磁気記憶装置
JP3472291B2 (ja) 2000-12-28 2003-12-02 日立マクセル株式会社 磁気記録媒体及びその製造方法並びに磁気記憶装置
US20020192506A1 (en) 2001-06-04 2002-12-19 International Business Machines Corporation `Thermal Spring' magnetic recording media for writing using magnetic and thermal gradients
JP2003067909A (ja) * 2001-08-24 2003-03-07 Fuji Electric Co Ltd 垂直磁気記録媒体
JP4534402B2 (ja) * 2001-09-13 2010-09-01 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体及びその製造方法
US6846582B2 (en) * 2001-11-16 2005-01-25 Hitachi Maxell, Ltd. Magnetic recording medium, method for producing the same, and magnetic storage apparatus
JP2003272122A (ja) * 2002-03-13 2003-09-26 Fuji Photo Film Co Ltd 磁気記録媒体
US6986954B2 (en) * 2002-04-17 2006-01-17 Imation Corp. Perpendicular magnetic recording media
US7235313B2 (en) * 2002-10-08 2007-06-26 Matsushita Electic Industrial Co., Ltd. Magneto-optical recording medium, method of manufacturing magneto-optical recording medium, method of recording on magneto-optical recording medium, and method of reproduction from magneto-optical recording medium
JP2005276365A (ja) * 2004-03-25 2005-10-06 Toshiba Corp グラニュラ薄膜、垂直磁気記録媒体および磁気記録再生装置
JP2005276367A (ja) * 2004-03-25 2005-10-06 Toshiba Corp 垂直磁気記録媒体及び磁気記録再生装置
US7846564B2 (en) 2005-09-27 2010-12-07 Seagate Technology Llc Perpendicular magnetic recording media with magnetic anisotropy/coercivity gradient and local exchange coupling
US8022416B2 (en) * 2005-10-19 2011-09-20 General Electric Company Functional blocks for assembly
US7926176B2 (en) * 2005-10-19 2011-04-19 General Electric Company Methods for magnetically directed self assembly
US20070231826A1 (en) * 2005-10-19 2007-10-04 General Electric Company Article and assembly for magnetically directed self assembly
KR100717909B1 (ko) * 2006-02-24 2007-05-14 삼성전기주식회사 니켈층을 포함하는 기판 및 이의 제조방법
US8674212B2 (en) * 2008-01-15 2014-03-18 General Electric Company Solar cell and magnetically self-assembled solar cell assembly
US8394243B1 (en) 2008-07-24 2013-03-12 Wd Media, Inc. Sputtered cobalt oxide for perpendicular magnetic recording medium with low media noise
US8488276B1 (en) 2008-09-30 2013-07-16 WD Media, LLC Perpendicular magnetic recording medium with grain isolation magnetic anistropy layer
US9311948B2 (en) * 2008-12-31 2016-04-12 Seagate Technology Llc Magnetic layering for bit-patterned stack
US8993133B1 (en) 2010-12-23 2015-03-31 WD Media, LLC Intermediate layer for perpendicular magnetic recording medium with high permeability grain boundaries
US8956741B1 (en) 2011-06-30 2015-02-17 WD Media, LLC Magnetic recording media with small grain size and narrow c-axis dispersion by using dual seed layer with substrate bias
US9685184B1 (en) 2014-09-25 2017-06-20 WD Media, LLC NiFeX-based seed layer for magnetic recording media
JP6909191B2 (ja) * 2018-09-27 2021-07-28 信越化学工業株式会社 積層体、半導体装置及び積層体の製造方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652499A (en) 1986-04-29 1987-03-24 International Business Machines Magnetic recording medium with a chromium alloy underlayer and a cobalt-based magnetic layer
JP2701337B2 (ja) 1987-12-29 1998-01-21 ソニー株式会社 光磁気記録媒体
US5851643A (en) * 1993-11-11 1998-12-22 Hitachi, Ltd. Magnetic recording media and magnetic recording read-back system which uses such media
US5693200A (en) * 1995-08-25 1997-12-02 Eastman Kodak Company Forming a high performance Co/Pt disk
US6221508B1 (en) * 1997-12-09 2001-04-24 Hitachi, Ltd. Magnetic recording media
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
JP3721011B2 (ja) * 1999-06-28 2005-11-30 日立マクセル株式会社 情報記録媒体及びそれを用いた磁気記憶装置、光磁気記憶装置
JP2001014649A (ja) * 1999-06-28 2001-01-19 Hitachi Ltd 板状体、無機化合物基板、磁気記録媒体及び磁気記憶装置

Also Published As

Publication number Publication date
US6534206B1 (en) 2003-03-18
US6749955B2 (en) 2004-06-15
US20030134154A1 (en) 2003-07-17
JP2001014633A (ja) 2001-01-19

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