AU2001263819A1 - Storage medium for thermally-assisted magnetic recording - Google Patents

Storage medium for thermally-assisted magnetic recording

Info

Publication number
AU2001263819A1
AU2001263819A1 AU2001263819A AU6381901A AU2001263819A1 AU 2001263819 A1 AU2001263819 A1 AU 2001263819A1 AU 2001263819 A AU2001263819 A AU 2001263819A AU 6381901 A AU6381901 A AU 6381901A AU 2001263819 A1 AU2001263819 A1 AU 2001263819A1
Authority
AU
Australia
Prior art keywords
thermally
storage medium
magnetic recording
assisted magnetic
assisted
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.)
Abandoned
Application number
AU2001263819A
Inventor
Steven B. Luitjens
Jacobus J. M. Ruigrok
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 EP00201358A external-priority patent/EP1146507A1/en
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of AU2001263819A1 publication Critical patent/AU2001263819A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • 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
    • 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
    • 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
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/855—Coating only part of a support with a 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
    • 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
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59633—Servo formatting
    • G11B5/59644—Acquisition or selection of servo format from a system reference
AU2001263819A 2000-03-28 2001-03-27 Storage medium for thermally-assisted magnetic recording Abandoned AU2001263819A1 (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
EP00201120 2000-03-28
EP00201120 2000-03-28
EP00201357 2000-04-15
EP00201357 2000-04-15
EP00201358A EP1146507A1 (en) 2000-04-15 2000-04-15 Storage medium for thermally-assisted magnetic recording
EP00201360 2000-04-15
EP00201359 2000-04-15
EP00201360 2000-04-15
EP00201359 2000-04-15
EP00201358 2000-04-15
PCT/EP2001/003494 WO2001073763A1 (en) 2000-03-28 2001-03-27 Storage medium for thermally-assisted magnetic recording

Publications (1)

Publication Number Publication Date
AU2001263819A1 true AU2001263819A1 (en) 2001-10-08

Family

ID=27513051

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001263819A Abandoned AU2001263819A1 (en) 2000-03-28 2001-03-27 Storage medium for thermally-assisted magnetic recording

Country Status (8)

Country Link
US (1) US6804175B2 (en)
EP (1) EP1410383A1 (en)
JP (1) JP2003529175A (en)
KR (1) KR100712106B1 (en)
CN (1) CN1210692C (en)
AU (1) AU2001263819A1 (en)
IL (2) IL151913A0 (en)
WO (1) WO2001073763A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002358616A (en) * 2000-06-12 2002-12-13 Toshiba Corp Magnetic recording medium and magnetic recording device
DE60138143D1 (en) * 2001-05-23 2009-05-07 Fujitsu Ltd MAGNETIC RECORDING MEDIUM OF THE VERTICAL RECORDING TYPE AND MAGNETIC STORAGE DEVICE WITH THE MEDIUM
WO2004038716A1 (en) 2002-10-25 2004-05-06 Fujitsu Limited Magneto-optical recording medium
AU2003234686A1 (en) * 2003-05-29 2005-01-21 Seagate Technology Llc Patterned media for heat assisted magnetic recording
US8345374B2 (en) 2003-05-29 2013-01-01 Seagate Technology, Llc Patterned media for heat assisted magnetic recording
US7330404B2 (en) * 2003-10-10 2008-02-12 Seagate Technology Llc Near-field optical transducers for thermal assisted magnetic and optical data storage
US7158346B2 (en) * 2003-12-23 2007-01-02 Seagate Technology Llc Heat assisted magnetic recording film including superparamagnetic nanoparticles dispersed in an antiferromagnetic or ferrimagnetic matrix
US7846564B2 (en) 2005-09-27 2010-12-07 Seagate Technology Llc Perpendicular magnetic recording media with magnetic anisotropy/coercivity gradient and local exchange coupling
JP4504960B2 (en) * 2006-08-28 2010-07-14 株式会社日立製作所 Thermally assisted magnetic recording device
US9311948B2 (en) * 2008-12-31 2016-04-12 Seagate Technology Llc Magnetic layering for bit-patterned stack
JP5259645B2 (en) * 2010-04-14 2013-08-07 株式会社東芝 Magnetic recording medium and method for manufacturing the same
US9099142B2 (en) 2013-03-12 2015-08-04 Seagate Technology Llc Radially dependent thermal heat resist layer
US9245562B1 (en) 2015-03-30 2016-01-26 Western Digital (Fremont), Llc Magnetic recording writer with a composite main pole
JP6921792B2 (en) * 2018-09-10 2021-08-18 株式会社東芝 Magnetic disk drive and light processing method
US11501796B1 (en) 2022-06-10 2022-11-15 Magnecomp Corporation Gimbal assembly geometry for hard disk drive

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509891B1 (en) * 1981-07-17 1986-12-05 Thomson Csf OPTICAL RECORDING-READING DEVICE ON PREGRAVED INFORMATION MEDIUM
US4737947A (en) * 1983-06-14 1988-04-12 Canon Kabushiki Kaisha Recording medium having optomagnetic recording layer and optical recording layer with guide tracks of specific reflectance
NL8500152A (en) * 1985-01-22 1986-08-18 Philips Nv REGISTRATION CARRIER BODY INCLUDING PRE-APPLIED AND OPTICALLY DETECTABLE SERVOSCORE PARTS AND SECTOR ADDRESSES.
JP2556682B2 (en) * 1986-07-03 1996-11-20 パイオニア株式会社 Optical disk device
JP2548186B2 (en) * 1987-04-13 1996-10-30 パイオニア株式会社 Optical disk with guide groove
JPS6410463A (en) 1987-07-01 1989-01-13 Sony Corp Magnetic disk
JPH0619801B2 (en) * 1989-01-26 1994-03-16 株式会社ニコン Disk media for recording analog video signals
US5191563A (en) * 1989-06-29 1993-03-02 Digital Equipment Corporation Method for increasing track density of magneto-optical storage media
US5161134A (en) * 1989-06-29 1992-11-03 Digital Equipment Corporation Method for increasing linear bit density in magneto-optical storage media
JPH07240040A (en) 1994-02-25 1995-09-12 Pioneer Electron Corp Optical disk
JPH1196608A (en) * 1997-09-26 1999-04-09 Sharp Corp Thermomagnetic recording and reproducing head, thermomagnetic recording and reproducing device, and thermomagnetic recording medium

Also Published As

Publication number Publication date
CN1432179A (en) 2003-07-23
KR20030004360A (en) 2003-01-14
KR100712106B1 (en) 2007-04-27
US6804175B2 (en) 2004-10-12
JP2003529175A (en) 2003-09-30
IL151913A0 (en) 2003-04-10
IL151913A (en) 2006-09-05
EP1410383A1 (en) 2004-04-21
US20030128635A1 (en) 2003-07-10
WO2001073763A1 (en) 2001-10-04
CN1210692C (en) 2005-07-13

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