JP2001143250A - 磁気記録媒体及び磁気記憶装置 - Google Patents

磁気記録媒体及び磁気記憶装置

Info

Publication number
JP2001143250A
JP2001143250A JP32296199A JP32296199A JP2001143250A JP 2001143250 A JP2001143250 A JP 2001143250A JP 32296199 A JP32296199 A JP 32296199A JP 32296199 A JP32296199 A JP 32296199A JP 2001143250 A JP2001143250 A JP 2001143250A
Authority
JP
Japan
Prior art keywords
layer
magnetic
recording medium
underlayer
magnetic recording
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.)
Pending
Application number
JP32296199A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001143250A5 (https=
Inventor
Noel Abara Ii
ノエル アバラ イー
Iwao Okamoto
巌 岡本
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP32296199A priority Critical patent/JP2001143250A/ja
Priority to US09/584,603 priority patent/US6613460B1/en
Priority to US09/849,835 priority patent/US6562489B2/en
Publication of JP2001143250A publication Critical patent/JP2001143250A/ja
Priority to US10/400,891 priority patent/US6828047B2/en
Publication of JP2001143250A5 publication Critical patent/JP2001143250A5/ja
Pending legal-status Critical Current

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
    • G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier layers
    • G11B5/737—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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12736—Al-base component
    • Y10T428/12743—Next to refractory [Group IVB, VB, or VIB] metal-base component
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12736—Al-base component
    • Y10T428/1275—Next to Group VIII or IB metal-base component
    • 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)
JP32296199A 1999-11-12 1999-11-12 磁気記録媒体及び磁気記憶装置 Pending JP2001143250A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP32296199A JP2001143250A (ja) 1999-11-12 1999-11-12 磁気記録媒体及び磁気記憶装置
US09/584,603 US6613460B1 (en) 1999-11-12 2000-05-31 Magnetic recording medium and magnetic storage apparatus
US09/849,835 US6562489B2 (en) 1999-11-12 2001-05-04 Magnetic recording medium and magnetic storage apparatus
US10/400,891 US6828047B2 (en) 1999-11-12 2003-03-27 Magnetic recording medium and magnetic storage apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32296199A JP2001143250A (ja) 1999-11-12 1999-11-12 磁気記録媒体及び磁気記憶装置

Publications (2)

Publication Number Publication Date
JP2001143250A true JP2001143250A (ja) 2001-05-25
JP2001143250A5 JP2001143250A5 (https=) 2006-12-21

Family

ID=18149586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32296199A Pending JP2001143250A (ja) 1999-11-12 1999-11-12 磁気記録媒体及び磁気記憶装置

Country Status (2)

Country Link
US (1) US6613460B1 (https=)
JP (1) JP2001143250A (https=)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6638648B2 (en) 2000-09-28 2003-10-28 Hitachi, Ltd. Perpendicular magnetic recording medium and magnetic storage apparatus using the same
US7163756B2 (en) 2003-04-23 2007-01-16 Hitachi Global Storage Technologies Japan, Ltd. Magnetic recording medium
KR100794981B1 (ko) * 2005-04-18 2008-01-16 후지쯔 가부시끼가이샤 수직 자기 기록 매체
KR100806156B1 (ko) * 2005-03-17 2008-02-22 후지쯔 가부시끼가이샤 자기 기록 매체 및 자기 기억 장치
US7354665B2 (en) 2003-01-15 2008-04-08 Fujitsu Limited Magnetic recording medium and magnetic storage apparatus

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003016636A (ja) * 2001-04-27 2003-01-17 Sharp Corp 磁気記録媒体およびそれを用いた磁気記録装置
US6908689B1 (en) * 2001-12-20 2005-06-21 Seagate Technology Llc Ruthenium-aluminum underlayer for magnetic recording media
US6821654B1 (en) * 2002-06-12 2004-11-23 Seagate Technology Llc CrMoTa underlayer
AU2003211604A1 (en) * 2003-02-20 2004-09-09 Fujitsu Limited Vertical magnetic recording medium
US6872478B2 (en) * 2003-06-26 2005-03-29 Hitachi Global Storage Technologies Netherlands, B.V. Magnetic thin film media with a pre-seed layer of CrTiAl
US20060063025A1 (en) * 2004-04-07 2006-03-23 Jing-Yi Huang Method and system for making thin metal films

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03193851A (ja) * 1989-12-25 1991-08-23 Nippon Steel Corp 極超微細組織を有するＴｉＡｌ基合金の製造方法
JPH04105213A (ja) 1990-08-27 1992-04-07 Hitachi Ltd 磁気記録媒体及び磁気記憶装置
JP3052406B2 (ja) 1991-03-20 2000-06-12 株式会社日立製作所 磁気記録媒体及び磁気記憶装置
JP3222141B2 (ja) 1995-02-27 2001-10-22 株式会社 日立製作所 磁気記録媒体及び磁気記憶装置
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
JP3087715B2 (ja) * 1998-02-19 2000-09-11 日本電気株式会社 磁気ディスク装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6638648B2 (en) 2000-09-28 2003-10-28 Hitachi, Ltd. Perpendicular magnetic recording medium and magnetic storage apparatus using the same
US6881504B2 (en) 2000-09-28 2005-04-19 Hitachi Global Storage Technologies Japan, Ltd. Perpendicular magnetic recording medium and magnetic storage apparatus using the same
US7354665B2 (en) 2003-01-15 2008-04-08 Fujitsu Limited Magnetic recording medium and magnetic storage apparatus
US7163756B2 (en) 2003-04-23 2007-01-16 Hitachi Global Storage Technologies Japan, Ltd. Magnetic recording medium
KR100806156B1 (ko) * 2005-03-17 2008-02-22 후지쯔 가부시끼가이샤 자기 기록 매체 및 자기 기억 장치
KR100794981B1 (ko) * 2005-04-18 2008-01-16 후지쯔 가부시끼가이샤 수직 자기 기록 매체

Also Published As

Publication number Publication date
US6613460B1 (en) 2003-09-02

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