SG107105A1 - Perpendicular magnetic recording medium and manufacturing method thereof - Google Patents

Perpendicular magnetic recording medium and manufacturing method thereof

Info

Publication number
SG107105A1
SG107105A1 SG200203897A SG200203897A SG107105A1 SG 107105 A1 SG107105 A1 SG 107105A1 SG 200203897 A SG200203897 A SG 200203897A SG 200203897 A SG200203897 A SG 200203897A SG 107105 A1 SG107105 A1 SG 107105A1
Authority
SG
Singapore
Prior art keywords
manufacturing
recording medium
magnetic recording
perpendicular magnetic
medium
Prior art date
Application number
SG200203897A
Other languages
English (en)
Inventor
Takenoiri Shunji
Sakai Yasushi
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of SG107105A1 publication Critical patent/SG107105A1/en

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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7373—Non-magnetic single underlayer comprising chromium
    • 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7377—Physical structure of underlayer, e.g. texture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/26—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers
    • H01F10/30—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers characterised by the composition of the intermediate layers, e.g. seed, buffer, template, diffusion preventing, cap layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/32—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying conductive, insulating or magnetic material on a magnetic film, specially adapted for a thin magnetic film
    • 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
SG200203897A 2001-07-05 2002-06-27 Perpendicular magnetic recording medium and manufacturing method thereof SG107105A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001205178A JP4491768B2 (ja) 2001-07-05 2001-07-05 垂直磁気記録媒体およびその製造方法

Publications (1)

Publication Number Publication Date
SG107105A1 true SG107105A1 (en) 2004-11-29

Family

ID=19041541

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200203897A SG107105A1 (en) 2001-07-05 2002-06-27 Perpendicular magnetic recording medium and manufacturing method thereof

Country Status (4)

Country Link
US (2) US6706318B2 (ja)
JP (1) JP4491768B2 (ja)
MY (1) MY130995A (ja)
SG (1) SG107105A1 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004030767A (ja) * 2002-06-25 2004-01-29 Toshiba Corp 垂直磁気記録媒体および磁気記録装置
JP4169663B2 (ja) * 2003-07-25 2008-10-22 Ｈｏｙａ株式会社 垂直磁気記録媒体
US7348378B2 (en) * 2003-12-18 2008-03-25 3M Innovative Properties Company Adhesive
JP4424015B2 (ja) 2004-03-09 2010-03-03 富士電機デバイステクノロジー株式会社 磁気記録媒体の製造方法
JP5213470B2 (ja) * 2008-02-01 2013-06-19 昭和電工株式会社 垂直磁気記録媒体及び磁気記憶装置
JP5455188B2 (ja) * 2009-03-28 2014-03-26 ダブリュディ・メディア・シンガポール・プライベートリミテッド 垂直磁気記録媒体の製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5738927A (en) * 1994-06-08 1998-04-14 Hitachi, Ltd. Perpendicular magnetic recording media and magnetic recording device
US5942342A (en) * 1993-03-10 1999-08-24 Kabushiki Kaisha Toshiba Perpendicular recording medium and magnetic recording apparatus
US6083599A (en) * 1996-09-04 2000-07-04 Hitachi, Ltd. Perpendicular magnetic recording media and magnetic recording and reproducing apparatus using the same
US6183893B1 (en) * 1998-04-06 2001-02-06 Hitachi, Ltd. Perpendicular magnetic recording medium and magnetic storage apparatus using the same
WO2001022407A1 (en) * 1999-09-20 2001-03-29 Seagate Technology, Llc Magnetic recording head including background magnetic field generator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07101495B2 (ja) * 1985-07-03 1995-11-01 株式会社日立製作所 磁気記録媒体
JPH01191318A (ja) * 1988-01-26 1989-08-01 Sony Corp 垂直磁気記録媒体
JP3210736B2 (ja) * 1992-08-24 2001-09-17 ホーヤ株式会社 磁気記録媒体の製造方法
JP3612087B2 (ja) * 1993-12-17 2005-01-19 株式会社日立製作所 磁気記録媒体
JPH10233015A (ja) * 1997-02-20 1998-09-02 Hitachi Ltd 磁気記録媒体およびその製法およびこの磁気記録媒体を用いる磁気記録装置
JP3652976B2 (ja) * 2000-09-28 2005-05-25 株式会社日立製作所 垂直磁気記録媒体及びこれを用いた磁気記憶装置
US6677061B2 (en) * 2001-05-23 2004-01-13 Showa Denko Kabushiki Kaisha Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5942342A (en) * 1993-03-10 1999-08-24 Kabushiki Kaisha Toshiba Perpendicular recording medium and magnetic recording apparatus
US5738927A (en) * 1994-06-08 1998-04-14 Hitachi, Ltd. Perpendicular magnetic recording media and magnetic recording device
US6083599A (en) * 1996-09-04 2000-07-04 Hitachi, Ltd. Perpendicular magnetic recording media and magnetic recording and reproducing apparatus using the same
US6183893B1 (en) * 1998-04-06 2001-02-06 Hitachi, Ltd. Perpendicular magnetic recording medium and magnetic storage apparatus using the same
WO2001022407A1 (en) * 1999-09-20 2001-03-29 Seagate Technology, Llc Magnetic recording head including background magnetic field generator

Also Published As

Publication number Publication date
US20030044565A1 (en) 2003-03-06
JP2003022523A (ja) 2003-01-24
US20040157088A1 (en) 2004-08-12
MY130995A (en) 2007-07-31
US6706318B2 (en) 2004-03-16
JP4491768B2 (ja) 2010-06-30

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