DE60302286D1 - Senkrechte magnetische Aufzeichnungsmittel - Google Patents

Senkrechte magnetische Aufzeichnungsmittel

Info

Publication number
DE60302286D1
DE60302286D1 DE60302286T DE60302286T DE60302286D1 DE 60302286 D1 DE60302286 D1 DE 60302286D1 DE 60302286 T DE60302286 T DE 60302286T DE 60302286 T DE60302286 T DE 60302286T DE 60302286 D1 DE60302286 D1 DE 60302286D1
Authority
DE
Germany
Prior art keywords
magnetic recording
recording media
vertical magnetic
vertical
media
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 - Lifetime
Application number
DE60302286T
Other languages
English (en)
Other versions
DE60302286T2 (de
Inventor
Kiwamu Tanahashi
Atsushi Kikugawa
Yoshio Takahashi
Yuzuru Hosoe
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.)
HGST Japan Ltd
Original Assignee
Hitachi Global Storage Technologies Japan 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 Global Storage Technologies Japan Ltd filed Critical Hitachi Global Storage Technologies Japan Ltd
Publication of DE60302286D1 publication Critical patent/DE60302286D1/de
Application granted granted Critical
Publication of DE60302286T2 publication Critical patent/DE60302286T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B5/62—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
    • G11B5/667—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic 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
    • G11B5/64—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
DE60302286T 2002-07-05 2003-02-07 Senkrechte magnetische Aufzeichnungsmittel Expired - Lifetime DE60302286T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002196664 2002-07-05
JP2002196664A JP4031956B2 (ja) 2002-07-05 2002-07-05 垂直磁気記録媒体および磁気記憶装置

Publications (2)

Publication Number Publication Date
DE60302286D1 true DE60302286D1 (de) 2005-12-22
DE60302286T2 DE60302286T2 (de) 2006-08-10

Family

ID=29720308

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60302286T Expired - Lifetime DE60302286T2 (de) 2002-07-05 2003-02-07 Senkrechte magnetische Aufzeichnungsmittel

Country Status (5)

Country Link
US (1) US7041393B2 (de)
EP (1) EP1378893B1 (de)
JP (1) JP4031956B2 (de)
CN (1) CN100342429C (de)
DE (1) DE60302286T2 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7092209B2 (en) * 2004-03-01 2006-08-15 Hitachi Global Storage Technologies Netherlands B.V. Longitudinal magnetic recording using magnetic media with a soft underlayer
JP4105654B2 (ja) * 2004-04-14 2008-06-25 富士通株式会社 垂直磁気記録媒体、磁気記憶装置、および垂直磁気記録媒体の製造方法
JP4254643B2 (ja) * 2004-07-23 2009-04-15 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
US7706179B2 (en) * 2004-08-04 2010-04-27 The Florida International University Board Of Trustees Three dimensional magnetic memory and/or recording device
JP4391360B2 (ja) * 2004-08-27 2009-12-24 昭和電工株式会社 磁気記録媒体及びその磁気記録方法
US7465501B1 (en) * 2004-12-22 2008-12-16 Seagate Technology Llc High density magnetic recording media
US7989095B2 (en) * 2004-12-28 2011-08-02 General Electric Company Magnetic layer with nanodispersoids having a bimodal distribution
US20060146445A1 (en) * 2005-01-04 2006-07-06 Seagate Technology Llc. Erasure-resistant perpendicular magnetic recording media, systems & method of manufacturing same
JP4902210B2 (ja) * 2005-02-01 2012-03-21 国立大学法人東北大学 垂直磁気記録媒体及びその製造方法並びに垂直磁気記録再生装置
JP2006309919A (ja) * 2005-03-30 2006-11-09 Fujitsu Ltd 垂直磁気記録媒体、その製造方法および磁気記憶装置
US7651794B2 (en) * 2005-04-28 2010-01-26 Hitachi Global Storage Technologies Netherlands B.V. Adhesion layer for thin film magnetic recording medium
JP4527645B2 (ja) * 2005-10-17 2010-08-18 ヒタチグローバルストレージテクノロジーズネザーランドビーブイ 垂直磁気記録媒体
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
KR100773547B1 (ko) * 2006-03-28 2007-11-07 삼성전자주식회사 자기 기록 매체
JP4922648B2 (ja) * 2006-03-31 2012-04-25 昭和電工株式会社 垂直磁気記録媒体、その製造方法、および磁気記憶装置
US9978413B2 (en) 2006-06-17 2018-05-22 Dieter Suess Multilayer exchange spring recording media
JP2008123603A (ja) * 2006-11-10 2008-05-29 Hitachi Global Storage Technologies Netherlands Bv 垂直磁気記録媒体およびその製造方法
JP2010086567A (ja) * 2008-09-29 2010-04-15 Hoya Corp 垂直磁気記録媒体の評価方法
US9245564B2 (en) 2014-04-29 2016-01-26 HGST Netherlands B.V. Soft underlayer having a multilayer structure for high areal density perpendicular recording media

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2947029B2 (ja) 1993-09-13 1999-09-13 日本ビクター株式会社 垂直磁気記録媒体
JPH11191217A (ja) 1997-12-26 1999-07-13 Victor Co Of Japan Ltd 垂直磁気記録媒体の製造方法
JP3731640B2 (ja) * 1999-11-26 2006-01-05 株式会社日立グローバルストレージテクノロジーズ 垂直磁気記録媒体及び磁気記憶装置
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
JP2002133635A (ja) 2000-10-25 2002-05-10 Hitachi Maxell Ltd 情報記録媒体及び情報記録装置
US20020058159A1 (en) * 2000-11-15 2002-05-16 Yukiko Kubota Soft magnetic underlayer (SUL) for perpendicular recording medium
JP4917200B2 (ja) * 2000-12-01 2012-04-18 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

Also Published As

Publication number Publication date
US20040009375A1 (en) 2004-01-15
US7041393B2 (en) 2006-05-09
CN1467708A (zh) 2004-01-14
JP2004039152A (ja) 2004-02-05
DE60302286T2 (de) 2006-08-10
EP1378893B1 (de) 2005-11-16
CN100342429C (zh) 2007-10-10
EP1378893A1 (de) 2004-01-07
JP4031956B2 (ja) 2008-01-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition