CN1225728C - 磁记录介质和磁存储装置 - Google Patents
磁记录介质和磁存储装置 Download PDFInfo
- Publication number
- CN1225728C CN1225728C CNB021468281A CN02146828A CN1225728C CN 1225728 C CN1225728 C CN 1225728C CN B021468281 A CNB021468281 A CN B021468281A CN 02146828 A CN02146828 A CN 02146828A CN 1225728 C CN1225728 C CN 1225728C
- Authority
- CN
- China
- Prior art keywords
- magnetosphere
- magnetic recording
- recording media
- magnetic
- magnetospheric
- 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
Links
- 230000005415 magnetization Effects 0.000 claims abstract description 79
- 230000008878 coupling Effects 0.000 claims description 26
- 238000010168 coupling process Methods 0.000 claims description 26
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- 239000000758 substrate Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 230000005303 antiferromagnetism Effects 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 6
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- 229910052707 ruthenium Inorganic materials 0.000 claims description 4
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- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
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Images
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
- 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
-
- 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
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12986—Adjacent functionally defined components
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
-
- 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)
Abstract
Description
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002060942A JP2003263714A (ja) | 2002-03-06 | 2002-03-06 | 磁気記録媒体及び磁気記憶装置 |
JP060942/2002 | 2002-03-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1442847A CN1442847A (zh) | 2003-09-17 |
CN1225728C true CN1225728C (zh) | 2005-11-02 |
Family
ID=27751146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB021468281A Expired - Fee Related CN1225728C (zh) | 2002-03-06 | 2002-10-14 | 磁记录介质和磁存储装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6881496B2 (zh) |
EP (1) | EP1343147A3 (zh) |
JP (1) | JP2003263714A (zh) |
KR (1) | KR20030074076A (zh) |
CN (1) | CN1225728C (zh) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003263714A (ja) * | 2002-03-06 | 2003-09-19 | Fujitsu Ltd | 磁気記録媒体及び磁気記憶装置 |
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 |
JP2005222669A (ja) | 2004-01-05 | 2005-08-18 | Fujitsu Ltd | 磁気記録媒体および磁気記憶装置 |
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 |
US7976964B2 (en) * | 2005-03-18 | 2011-07-12 | Hitachi Global Storage Technologies Netherlands B.V. | Disk drive with laminated magnetic thin films with sublayers for magnetic recording |
US20060210834A1 (en) * | 2005-03-18 | 2006-09-21 | Do Hoa V | Laminated magnetic thin films with sublayers for magnetic recording |
US20060228586A1 (en) * | 2005-04-06 | 2006-10-12 | Seagate Technology Llc | Ferromagnetically coupled magnetic recording media |
JP2007004907A (ja) | 2005-06-24 | 2007-01-11 | Hitachi Global Storage Technologies Netherlands Bv | 磁気記録媒体 |
US7606009B2 (en) * | 2006-03-15 | 2009-10-20 | Hitachi Global Storage Technologies Netherlands B.V. | Read sensor stabilized by bidirectional anisotropy |
JP4840041B2 (ja) * | 2006-09-20 | 2011-12-21 | 株式会社日立製作所 | 電界印加磁気記録方式および記録再生装置 |
US9401170B1 (en) | 2009-11-24 | 2016-07-26 | WD Media, LLC | Perpendicular magnetic recording medium with epitaxial exchange coupling layer |
US8173282B1 (en) | 2009-12-11 | 2012-05-08 | Wd Media, Inc. | Perpendicular magnetic recording medium with an ordering temperature reducing layer |
US8940418B1 (en) | 2010-12-23 | 2015-01-27 | WD Media, LLC | Dynamic spring media with multiple exchange coupled hard-soft magnetic layers |
US9028985B2 (en) | 2011-03-31 | 2015-05-12 | WD Media, LLC | Recording media with multiple exchange coupled magnetic layers |
US9685184B1 (en) | 2014-09-25 | 2017-06-20 | WD Media, LLC | NiFeX-based seed layer for magnetic recording media |
JP6411186B2 (ja) * | 2014-11-19 | 2018-10-24 | 株式会社東芝 | 磁気抵抗素子および磁気メモリ |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6245450B1 (en) * | 1997-11-17 | 2001-06-12 | Matsushita Electric Industrial Co., Ltd. | Exchange coupling film magnetoresistance effect device magnetoresistance effective head and method for producing magnetoresistance effect device |
US6258470B1 (en) * | 1998-01-16 | 2001-07-10 | Matsushita Electric Industrial Co., Ltd. | Exchange coupling film, magnetoresistance effect device, magnetoresistance effective head and method for producing exchange coupling film |
JP4263802B2 (ja) * | 1998-03-17 | 2009-05-13 | 株式会社東芝 | 磁心、磁気センサ、及び磁気記録ヘッド |
JP3421632B2 (ja) | 1999-06-08 | 2003-06-30 | 富士通株式会社 | 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 |
US6280813B1 (en) * | 1999-10-08 | 2001-08-28 | International Business Machines Corporation | Magnetic recording media with antiferromagnetically coupled ferromagnetic films as the recording layer |
US6372330B1 (en) | 1999-10-08 | 2002-04-16 | International Business Machines Corporation | Laminated magnetic recording media with antiferromagnetically coupled layers as the individual magnetic layers in the laminate |
JP2001260571A (ja) | 2000-03-15 | 2001-09-25 | Dainippon Printing Co Ltd | 預貯金通帳 |
JP4028154B2 (ja) | 2000-04-07 | 2007-12-26 | 富士通株式会社 | 磁気記録媒体及び磁気記憶装置 |
JP2002063712A (ja) | 2000-06-06 | 2002-02-28 | Matsushita Electric Ind Co Ltd | 磁気記録媒体及びこれを用いた磁気記録装置 |
US6686071B2 (en) * | 2000-06-06 | 2004-02-03 | Matsushita Electric Industrial Co., Ltd. | Magnetic recording medium and magnetic recording apparatus using the same |
US6537684B1 (en) | 2000-08-04 | 2003-03-25 | International Business Machines Corporation | Antiferromagnetically coupled magnetic recording media with boron-free first ferromagnetic film as nucleation layer |
US6835475B2 (en) * | 2001-07-26 | 2004-12-28 | Hitachi Global Storage Technologies Netherlands B.V. | Dual-layer perpendicular magnetic recording media with laminated underlayer formed with antiferromagnetically coupled films |
SG96659A1 (en) * | 2001-11-08 | 2003-06-16 | Inst Data Storage | Laminated antiferromagnetically coupled media for data storage |
JP2003263714A (ja) * | 2002-03-06 | 2003-09-19 | Fujitsu Ltd | 磁気記録媒体及び磁気記憶装置 |
-
2002
- 2002-03-06 JP JP2002060942A patent/JP2003263714A/ja active Pending
- 2002-09-19 US US10/246,980 patent/US6881496B2/en not_active Expired - Fee Related
- 2002-09-24 EP EP02256606A patent/EP1343147A3/en not_active Withdrawn
- 2002-10-07 KR KR1020020060975A patent/KR20030074076A/ko not_active Application Discontinuation
- 2002-10-14 CN CNB021468281A patent/CN1225728C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1343147A2 (en) | 2003-09-10 |
JP2003263714A (ja) | 2003-09-19 |
US20030170499A1 (en) | 2003-09-11 |
US6881496B2 (en) | 2005-04-19 |
KR20030074076A (ko) | 2003-09-19 |
CN1442847A (zh) | 2003-09-17 |
EP1343147A3 (en) | 2005-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SHOWA DENKO K. K. Free format text: FORMER OWNER: FUJITSU LIMITED Effective date: 20100324 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: KANAGAWA PREFECTURE, JAPAN COUNTY TO: TOKYO, JAPAN |
|
TR01 | Transfer of patent right |
Effective date of registration: 20100324 Address after: Tokyo, Japan, Japan Patentee after: Showa Denko K. K. Address before: Kanagawa Patentee before: Fujitsu Ltd. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051102 Termination date: 20091116 |