CN1689079A - 垂直磁记录介质 - Google Patents
垂直磁记录介质 Download PDFInfo
- Publication number
- CN1689079A CN1689079A CNA028297636A CN02829763A CN1689079A CN 1689079 A CN1689079 A CN 1689079A CN A028297636 A CNA028297636 A CN A028297636A CN 02829763 A CN02829763 A CN 02829763A CN 1689079 A CN1689079 A CN 1689079A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- layer
- magnetic recording
- assisted
- recording medium
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 38
- 230000004907 flux Effects 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 5
- 229910052763 palladium Inorganic materials 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 230000005415 magnetization Effects 0.000 abstract description 14
- 239000010410 layer Substances 0.000 description 135
- 239000010408 film Substances 0.000 description 39
- 210000003128 head Anatomy 0.000 description 25
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- HEFNNWSXXWATRW-UHFFFAOYSA-N Ibuprofen Chemical compound CC(C)CC1=CC=C(C(C)C(O)=O)C=C1 HEFNNWSXXWATRW-UHFFFAOYSA-N 0.000 description 4
- 230000003321 amplification Effects 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 230000002459 sustained effect Effects 0.000 description 4
- 239000010702 perfluoropolyether Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 210000000795 conjunctiva Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004544 sputter deposition 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
-
- 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
-
- 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
- G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
-
- 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]
- Y10T428/24967—Absolute thicknesses specified
- Y10T428/24975—No layer or component greater than 5 mils thick
Landscapes
- Magnetic Record Carriers (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Thin Magnetic Films (AREA)
Abstract
Description
Claims (12)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2002/010779 WO2004036556A1 (ja) | 2002-10-17 | 2002-10-17 | 垂直磁気記録媒体 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1689079A true CN1689079A (zh) | 2005-10-26 |
CN100385508C CN100385508C (zh) | 2008-04-30 |
Family
ID=32104828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028297636A Expired - Fee Related CN100385508C (zh) | 2002-10-17 | 2002-10-17 | 垂直磁记录介质 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7402348B2 (zh) |
EP (1) | EP1555655B1 (zh) |
JP (1) | JP3965186B2 (zh) |
CN (1) | CN100385508C (zh) |
AU (1) | AU2002335516A1 (zh) |
DE (1) | DE60224733T2 (zh) |
WO (1) | WO2004036556A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7498092B2 (en) * | 2005-01-26 | 2009-03-03 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording medium with magnetic torque layer coupled to the perpendicular recording layer |
JP2008140460A (ja) * | 2006-11-30 | 2008-06-19 | Toshiba Corp | 垂直磁気記録媒体及び磁気記録再生装置 |
JP2009187608A (ja) * | 2008-02-05 | 2009-08-20 | Toshiba Corp | 垂直磁気記録パターンド媒体および磁気記録再生装置 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4966821A (en) * | 1986-07-17 | 1990-10-30 | Ricoh Company, Ltd. | Perpendicular magnetic recording medium |
JP2524514B2 (ja) * | 1987-09-21 | 1996-08-14 | 日立マクセル株式会社 | 磁気記録媒体 |
JPH0528454A (ja) | 1991-07-24 | 1993-02-05 | Sony Corp | 垂直磁気記録媒体 |
JP3670728B2 (ja) | 1995-09-25 | 2005-07-13 | 株式会社日立製作所 | 磁気記録媒体およびこれを応用した磁気記録装置 |
TW390998B (en) * | 1996-05-20 | 2000-05-21 | Hitachi Ltd | Magnetic recording media and magnetic recording system using the same |
WO1998006093A1 (fr) * | 1996-05-20 | 1998-02-12 | Hitachi, Ltd. | Support d'enregistrement magnetique et dispositif de memoire magnetique utilisant un tel support |
JPH10228620A (ja) * | 1997-02-14 | 1998-08-25 | Nec Corp | 垂直磁気記録媒体 |
US6403203B2 (en) * | 1997-05-29 | 2002-06-11 | Hitachi, Ltd. | Magnetic recording medium and magnetic recording apparatus using the same |
JPH11102510A (ja) | 1997-09-30 | 1999-04-13 | Hitachi Ltd | 垂直磁気記録媒体およびこれを用いた磁気記録装置 |
JPH10334440A (ja) * | 1997-06-03 | 1998-12-18 | Hitachi Ltd | 磁気記録媒体及び磁気記録再生装置 |
JP3740291B2 (ja) * | 1998-08-24 | 2006-02-01 | 日本オプネクスト株式会社 | 光送信器 |
WO2001031645A1 (fr) * | 1999-10-29 | 2001-05-03 | Hitachi Maxell, Ltd. | Support d'enregistrement magnetique, son procede de production et enregistreur magnetique |
JP2002025032A (ja) | 2000-06-30 | 2002-01-25 | Sony Corp | 磁気記録媒体 |
JP2002100030A (ja) * | 2000-09-21 | 2002-04-05 | Toshiba Corp | 垂直磁気記録媒体 |
JP4025013B2 (ja) * | 2000-12-26 | 2007-12-19 | 株式会社東芝 | 垂直磁気記録方式の磁気ディスク装置 |
JP2002216333A (ja) | 2001-01-22 | 2002-08-02 | Hitachi Maxell Ltd | 磁気記録媒体及び磁気記録装置 |
JP2002222517A (ja) | 2001-01-25 | 2002-08-09 | Sony Corp | 磁気記録媒体 |
JP2002312918A (ja) * | 2001-04-13 | 2002-10-25 | Fujitsu Ltd | 磁気記録媒体 |
JP3905424B2 (ja) * | 2002-06-06 | 2007-04-18 | 富士通株式会社 | 垂直磁気記録媒体及びこれを備えた磁気記録装置 |
-
2002
- 2002-10-17 AU AU2002335516A patent/AU2002335516A1/en not_active Abandoned
- 2002-10-17 EP EP02808023A patent/EP1555655B1/en not_active Expired - Fee Related
- 2002-10-17 WO PCT/JP2002/010779 patent/WO2004036556A1/ja active IP Right Grant
- 2002-10-17 DE DE60224733T patent/DE60224733T2/de not_active Expired - Fee Related
- 2002-10-17 CN CNB028297636A patent/CN100385508C/zh not_active Expired - Fee Related
- 2002-10-17 JP JP2004544703A patent/JP3965186B2/ja not_active Expired - Fee Related
-
2005
- 2005-03-23 US US11/088,241 patent/US7402348B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1555655A4 (en) | 2006-02-08 |
US20050249982A1 (en) | 2005-11-10 |
DE60224733D1 (de) | 2008-03-06 |
JPWO2004036556A1 (ja) | 2006-02-16 |
US7402348B2 (en) | 2008-07-22 |
DE60224733T2 (de) | 2009-01-15 |
EP1555655B1 (en) | 2008-01-16 |
CN100385508C (zh) | 2008-04-30 |
EP1555655A1 (en) | 2005-07-20 |
WO2004036556A1 (ja) | 2004-04-29 |
AU2002335516A1 (en) | 2004-05-04 |
JP3965186B2 (ja) | 2007-08-29 |
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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: 20100323 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: KANAGAWA, JAPAN COUNTY TO: TOKYO, JAPAN |
|
TR01 | Transfer of patent right |
Effective date of registration: 20100323 Address after: Tokyo, Japan Patentee after: Showa Denko K. K. Address before: Kanagawa, Japan Patentee before: Fujitsu Ltd. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20121017 |