CN1741141A - 磁记录介质和磁记录方法 - Google Patents
磁记录介质和磁记录方法 Download PDFInfo
- Publication number
- CN1741141A CN1741141A CNA2005100080914A CN200510008091A CN1741141A CN 1741141 A CN1741141 A CN 1741141A CN A2005100080914 A CNA2005100080914 A CN A2005100080914A CN 200510008091 A CN200510008091 A CN 200510008091A CN 1741141 A CN1741141 A CN 1741141A
- Authority
- CN
- China
- Prior art keywords
- magnetosphere
- temperature
- magnetic recording
- magnetic
- recording 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 206
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005415 magnetization Effects 0.000 claims abstract description 66
- 230000005389 magnetism Effects 0.000 claims abstract description 25
- 230000005316 antiferromagnetic exchange Effects 0.000 claims abstract description 19
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 6
- 230000004907 flux Effects 0.000 claims description 16
- 235000021438 curry Nutrition 0.000 claims description 10
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- 229910052723 transition metal Inorganic materials 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 150000003624 transition metals Chemical class 0.000 claims description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 2
- 229910052779 Neodymium Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 15
- 230000005381 magnetic domain Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 239000011521 glass Substances 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 239000013078 crystal Substances 0.000 description 7
- 239000000696 magnetic material Substances 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 7
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002902 ferrimagnetic material Substances 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000003302 ferromagnetic material Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000007634 remodeling Methods 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 230000005290 antiferromagnetic effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002178 crystalline material Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910019586 CoZrTa Inorganic materials 0.000 description 1
- 101100223892 Escherichia coli sulI gene Proteins 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005303 antiferromagnetism Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005308 ferrimagnetism Effects 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
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
-
- 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
-
- 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
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
-
- 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
- G11B2005/0026—Pulse recording
- G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface
-
- 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
Abstract
Description
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004248294 | 2004-08-27 | ||
JP2004248294A JP4391360B2 (ja) | 2004-08-27 | 2004-08-27 | 磁気記録媒体及びその磁気記録方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1741141A true CN1741141A (zh) | 2006-03-01 |
CN100362572C CN100362572C (zh) | 2008-01-16 |
Family
ID=36073688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2005100080914A Expired - Fee Related CN100362572C (zh) | 2004-08-27 | 2005-02-16 | 磁记录介质和磁记录方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7596058B2 (zh) |
JP (1) | JP4391360B2 (zh) |
KR (1) | KR100625706B1 (zh) |
CN (1) | CN100362572C (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007317304A (ja) | 2006-05-25 | 2007-12-06 | Fujitsu Ltd | 磁気記録媒体および磁気記憶装置 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0395745A (ja) * | 1989-09-06 | 1991-04-22 | Canon Inc | 光磁気記録方法及び記録装置 |
JP2959586B2 (ja) * | 1991-02-12 | 1999-10-06 | ソニー株式会社 | 光磁気ディスクの再生方法 |
EP0525192B1 (en) * | 1991-02-15 | 1998-02-04 | Sony Corporation | Magnetooptical reproducing method and device |
JPH07169123A (ja) * | 1993-12-16 | 1995-07-04 | Nikon Corp | オーバーライト可能な光磁気記録媒体 |
JP3164975B2 (ja) * | 1994-08-24 | 2001-05-14 | キヤノン株式会社 | 光磁気記録媒体及び該媒体を用いた情報再生方法 |
US5717662A (en) * | 1995-05-12 | 1998-02-10 | Canon Kabushiki Kaisha | Super-resolution magneto-optical recording medium using magnetostatic coupling and information reproduction method using the medium |
JPH1129687A (ja) | 1997-05-13 | 1999-02-02 | Sumitomo Chem Co Ltd | ゴム変性スチレン系樹脂組成物およびその成形体 |
JP4097814B2 (ja) * | 1998-11-16 | 2008-06-11 | シャープ株式会社 | 磁気記録媒体および磁気再生方法 |
JP4093681B2 (ja) * | 1999-05-26 | 2008-06-04 | シャープ株式会社 | 熱磁気記録媒体、熱磁気記録方法、熱磁気再生方法、熱磁気記録再生装置 |
JP2001084658A (ja) | 1999-07-09 | 2001-03-30 | Hitachi Maxell Ltd | 光磁気記録媒体及びその記録方法 |
JP2001084546A (ja) | 1999-09-17 | 2001-03-30 | Fujitsu Ltd | 情報記録媒体、情報記録再生方式及び情報記録再生装置 |
US6767655B2 (en) * | 2000-08-21 | 2004-07-27 | Matsushita Electric Industrial Co., Ltd. | Magneto-resistive element |
US6818330B2 (en) * | 2000-08-25 | 2004-11-16 | Seagate Technology Llc | Perpendicular recording medium with antiferromagnetic exchange coupling in soft magnetic underlayers |
JP2002288814A (ja) * | 2001-03-22 | 2002-10-04 | Toshiba Corp | 垂直磁気記録媒体及びこれを用いた磁気記録再生装置 |
JP3652999B2 (ja) | 2001-04-04 | 2005-05-25 | 株式会社日立製作所 | 垂直磁気記録媒体及び磁気記憶装置 |
JP4515690B2 (ja) | 2002-05-29 | 2010-08-04 | 昭和電工株式会社 | 垂直多層磁気記録媒体 |
JP4031956B2 (ja) * | 2002-07-05 | 2008-01-09 | 株式会社日立グローバルストレージテクノロジーズ | 垂直磁気記録媒体および磁気記憶装置 |
JP2004079043A (ja) * | 2002-08-13 | 2004-03-11 | Fuji Electric Holdings Co Ltd | 垂直磁気記録媒体 |
JP2004118977A (ja) * | 2002-09-27 | 2004-04-15 | Toshiba Corp | 垂直磁気記録媒体及び磁気記録再生装置 |
JP3911678B2 (ja) | 2002-10-01 | 2007-05-09 | 富士通株式会社 | 多層垂直磁気記録媒体 |
JP2007317304A (ja) * | 2006-05-25 | 2007-12-06 | Fujitsu Ltd | 磁気記録媒体および磁気記憶装置 |
KR100991660B1 (ko) | 2010-08-19 | 2010-11-04 | 이영희 | 전기전자 제품용 가죽 케이스 제조방법 |
-
2004
- 2004-08-27 JP JP2004248294A patent/JP4391360B2/ja not_active Expired - Fee Related
-
2005
- 2005-01-19 US US11/038,679 patent/US7596058B2/en not_active Expired - Fee Related
- 2005-02-16 CN CNB2005100080914A patent/CN100362572C/zh not_active Expired - Fee Related
- 2005-02-18 KR KR1020050013695A patent/KR100625706B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP2006065974A (ja) | 2006-03-09 |
JP4391360B2 (ja) | 2009-12-24 |
US7596058B2 (en) | 2009-09-29 |
KR100625706B1 (ko) | 2006-09-20 |
US20060061909A1 (en) | 2006-03-23 |
KR20060043005A (ko) | 2006-05-15 |
CN100362572C (zh) | 2008-01-16 |
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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: 20100315 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: KAWASAKI CITY, KANAGAWA PREFECTURE, JAPAN TO: TOKYO, JAPAN |
|
TR01 | Transfer of patent right |
Effective date of registration: 20100315 Address after: Tokyo, Japan Patentee after: Showa Denko K. K. Address before: Kawasaki, Kanagawa, Japan Patentee before: Fujitsu Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080116 Termination date: 20150216 |
|
EXPY | Termination of patent right or utility model |