DE60014974D1 - Magnetisches Aufzeichnungsmittel - Google Patents

Magnetisches Aufzeichnungsmittel

Info

Publication number
DE60014974D1
DE60014974D1 DE2000614974 DE60014974T DE60014974D1 DE 60014974 D1 DE60014974 D1 DE 60014974D1 DE 2000614974 DE2000614974 DE 2000614974 DE 60014974 T DE60014974 T DE 60014974T DE 60014974 D1 DE60014974 D1 DE 60014974D1
Authority
DE
Germany
Prior art keywords
recording medium
magnetic recording
magnetic
medium
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.)
Expired - Fee Related
Application number
DE2000614974
Other languages
English (en)
Other versions
DE60014974T2 (de
Inventor
E Noel Abarra
Iwao Okamoto
Yoshifumi Mizoshita
Yuki Yoshida
Hisashi Umeda
Masaya Suzuki
Hideyuki Akimoto
Hisateru Sato
Isatake Kaitsu
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.)
Resonac Holdings Corp
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
Priority claimed from JP2000107076A external-priority patent/JP3476741B2/ja
Priority claimed from JP2000107074A external-priority patent/JP2001056923A/ja
Priority claimed from JP2000107075A external-priority patent/JP3421632B2/ja
Priority claimed from JP2000107072A external-priority patent/JP3476740B2/ja
Priority claimed from JP2000107071A external-priority patent/JP3476739B2/ja
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE60014974D1 publication Critical patent/DE60014974D1/de
Publication of DE60014974T2 publication Critical patent/DE60014974T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/64—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
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • 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
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • 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
DE60014974T 1999-06-08 2000-05-26 Magnetisches Aufzeichnungsmittel Expired - Fee Related DE60014974T2 (de)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP16132999 1999-06-08
JP16132999 1999-06-08
JP2000107076 2000-04-07
JP2000107076A JP3476741B2 (ja) 1999-06-08 2000-04-07 磁気記録媒体及び磁気記憶装置
JP2000107074A JP2001056923A (ja) 1999-06-08 2000-04-07 磁気記録媒体及び磁気記憶装置
JP2000107075A JP3421632B2 (ja) 1999-06-08 2000-04-07 磁気記録媒体、磁気記憶装置、記録方法及び磁気記録媒体の製造方法
JP2000107072A JP3476740B2 (ja) 1999-06-08 2000-04-07 磁気記録媒体
JP2000107075 2000-04-07
JP2000107074 2000-04-07
JP2000107071A JP3476739B2 (ja) 1999-06-08 2000-04-07 磁気記録媒体
JP2000107072 2000-04-07
JP2000107071 2000-04-07

Publications (2)

Publication Number Publication Date
DE60014974D1 true DE60014974D1 (de) 2004-11-18
DE60014974T2 DE60014974T2 (de) 2005-03-17

Family

ID=27553242

Family Applications (3)

Application Number Title Priority Date Filing Date
DE60006186T Expired - Fee Related DE60006186T2 (de) 1999-06-08 2000-05-26 Magnetaufzeichnungsmedium, Magnetspeichergerät, -aufzeichnungsmethode und Magnetaufzeichnungsmedium-Herstellungsverfahren
DE60014974T Expired - Fee Related DE60014974T2 (de) 1999-06-08 2000-05-26 Magnetisches Aufzeichnungsmittel
DE60013651T Expired - Fee Related DE60013651T2 (de) 1999-06-08 2000-05-26 Magnetisches Aufzeichnungsmittel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE60006186T Expired - Fee Related DE60006186T2 (de) 1999-06-08 2000-05-26 Magnetaufzeichnungsmedium, Magnetspeichergerät, -aufzeichnungsmethode und Magnetaufzeichnungsmedium-Herstellungsverfahren

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE60013651T Expired - Fee Related DE60013651T2 (de) 1999-06-08 2000-05-26 Magnetisches Aufzeichnungsmittel

Country Status (3)

Country Link
EP (4) EP1302932B1 (de)
KR (1) KR100630583B1 (de)
DE (3) DE60006186T2 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6261681B1 (en) 1998-03-20 2001-07-17 Asahi Komag Co., Ltd. Magnetic recording medium
US6280813B1 (en) * 1999-10-08 2001-08-28 International Business Machines Corporation Magnetic recording media with antiferromagnetically coupled ferromagnetic films as the recording layer
US6383668B1 (en) * 2000-03-27 2002-05-07 International Business Machines Corporation Magnetic recording media with antiferromagnetically coupled host layer for the magnetic recording layer
EP1359570A4 (de) * 2000-11-29 2004-04-14 Fujitsu Ltd Magnetisches aufzeichnungsmedium und magnetischer speicherbaustein
EP1598813A1 (de) * 2000-11-29 2005-11-23 Fujitsu Limited Magnetisches Aufzeichnungsmittel und magnetischer Speicherapparat
JP3854579B2 (ja) 2000-11-29 2006-12-06 富士通株式会社 磁気記録媒体及び磁気記憶装置
JP2002367165A (ja) 2001-06-08 2002-12-20 Fuji Photo Film Co Ltd 高密度磁気記録媒体に対する磁気転写方法
JP2002367166A (ja) 2001-06-08 2002-12-20 Fuji Photo Film Co Ltd 高密度磁気記録媒体に対する磁気転写方法
JP3947001B2 (ja) * 2001-12-27 2007-07-18 富士通株式会社 情報記録媒体及び情報記憶装置
US6899959B2 (en) 2002-02-12 2005-05-31 Komag, Inc. Magnetic media with improved exchange coupling
WO2003083840A1 (en) * 2002-03-29 2003-10-09 Fujitsu Limited Magnetic recording medium and magnetic storage apparatus
WO2003083841A1 (en) 2002-03-29 2003-10-09 Fujitsu Limited Magnetic recording medium and magnetic storage apparatus
WO2004027762A1 (en) * 2002-09-06 2004-04-01 Fujitsu Limited Magnetic recording medium and magnetic storage apparatus
KR20040105210A (ko) * 2003-03-17 2004-12-14 후지쯔 가부시끼가이샤 자기 기록 매체 및 그 제조 방법
US20040265636A1 (en) * 2003-06-24 2004-12-30 Doerner Mary F. Magnetic recording disk with improved antiferromagnetically coupling film
US6893741B2 (en) * 2003-06-24 2005-05-17 Hitachi Global Storage Technologies Netherlands B.V. Magnetic device with improved antiferromagnetically coupling film
JP2005032353A (ja) * 2003-07-14 2005-02-03 Fujitsu Ltd 磁気記録媒体、磁気記憶装置、および磁気記録媒体の記録方法
JP2005085338A (ja) * 2003-09-05 2005-03-31 Fujitsu Ltd 磁気記録媒体、磁気記憶装置、及び記録方法
KR100601938B1 (ko) * 2004-01-09 2006-07-14 삼성전자주식회사 Ｃｏ계 수직자기기록매체
US7125616B2 (en) * 2004-02-26 2006-10-24 Hitachi Global Storage Technologies Netherlands B.V. Magnetic recording disk with antiferromagnetically-coupled magnetic layer having multiple lower layers
US7081309B2 (en) 2004-03-23 2006-07-25 Hitachi Global Storage Technologies Netherlands B.V. Magnetic recording disk with antiferromagnetically-coupled magnetic layer having multiple ferromagnetically-coupled lower layers
JP2006134533A (ja) * 2004-11-09 2006-05-25 Fujitsu Ltd 磁気記録媒体および磁気記憶装置
JP2006185489A (ja) * 2004-12-27 2006-07-13 Fujitsu Ltd 磁気記録媒体および磁気記憶装置
US7382590B2 (en) * 2005-01-31 2008-06-03 Hitachi Global Storage Technologies Netherlands B.V. MR sensor and thin film media having alloyed Ru antiparallel spacer layer for enhanced antiparallel exchange coupling
US20070190364A1 (en) * 2006-02-14 2007-08-16 Heraeus, Inc. Ruthenium alloy magnetic media and sputter targets
JP2007220177A (ja) * 2006-02-15 2007-08-30 Fujitsu Ltd 垂直磁気記録媒体
KR100738108B1 (ko) * 2006-02-22 2007-07-12 삼성전자주식회사 수직자기기록매체
US8263239B2 (en) 2006-06-26 2012-09-11 HGST Netherlands B.V. Laminated magnetic thin films for magnetic recording with weak ferromagnetic coupling
AT510948A3 (de) * 2010-12-23 2019-08-15 Schrefl Thomas Dr Methode zur optimierung der thermischen stabilität von magnetischen strukturen durch die berechnung der zeitabhängigkeit der magnetisierung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5147732A (en) * 1988-09-28 1992-09-15 Hitachi, Ltd. Longitudinal magnetic recording media and magnetic memory units
US5851643A (en) * 1993-11-11 1998-12-22 Hitachi, Ltd. Magnetic recording media and magnetic recording read-back system which uses such media
JPH09198641A (ja) * 1996-01-12 1997-07-31 Fuji Electric Co Ltd 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
KR100349387B1 (ko) * 1996-12-17 2003-01-15 이석준 자기기록매체의 제조방법
JP3528511B2 (ja) * 1997-04-14 2004-05-17 松下電器産業株式会社 薄膜磁気ヘッド
US5768071A (en) * 1997-06-19 1998-06-16 International Business Machines Corporation Spin valve sensor with improved magnetic stability of the pinned layer
US6077586A (en) * 1997-07-15 2000-06-20 International Business Machines Corporation Laminated thin film disk for longitudinal recording
US6645614B1 (en) * 2000-07-25 2003-11-11 Seagate Technology Llc Magnetic recording media having enhanced coupling between magnetic layers

Also Published As

Publication number Publication date
EP1059629A2 (de) 2000-12-13
EP1302933B1 (de) 2004-09-08
KR20010007285A (ko) 2001-01-26
EP1059629B1 (de) 2003-10-29
DE60014974T2 (de) 2005-03-17
KR100630583B1 (ko) 2006-10-04
DE60006186D1 (de) 2003-12-04
DE60006186T2 (de) 2004-06-03
EP1302932A1 (de) 2003-04-16
EP1302932B1 (de) 2004-10-13
EP1302931A1 (de) 2003-04-16
EP1302933A1 (de) 2003-04-16
EP1059629A3 (de) 2002-03-27
DE60013651D1 (de) 2004-10-14
DE60013651T2 (de) 2005-02-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SHOWA DENKO K.K., MINATO-KU, TOKYO, JP

8328 Change in the person/name/address of the agent

Representative=s name: SEEGER SEEGER LINDNER PARTNERSCHAFT PATENTANWAELTE

8339 Ceased/non-payment of the annual fee