SG152971A1 - Substrate for perpendicular magnetic recording media and perpendicular magnetic recording media using same - Google Patents

Substrate for perpendicular magnetic recording media and perpendicular magnetic recording media using same

Info

Publication number
SG152971A1
SG152971A1 SG200805729-1A SG2008057291A SG152971A1 SG 152971 A1 SG152971 A1 SG 152971A1 SG 2008057291 A SG2008057291 A SG 2008057291A SG 152971 A1 SG152971 A1 SG 152971A1
Authority
SG
Singapore
Prior art keywords
magnetic recording
recording media
main surface
substrate
perpendicular magnetic
Prior art date
Application number
SG200805729-1A
Other languages
English (en)
Inventor
Hiroshi Minazawa
Original Assignee
Fuji Elec Device Tech 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 Elec Device Tech Co Ltd filed Critical Fuji Elec Device Tech Co Ltd
Publication of SG152971A1 publication Critical patent/SG152971A1/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
    • G11B5/62—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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73921—Glass or ceramic substrates
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
    • G11B5/73919—Aluminium or titanium elemental or alloy substrates

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
SG200805729-1A 2007-12-07 2008-08-01 Substrate for perpendicular magnetic recording media and perpendicular magnetic recording media using same SG152971A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007317286A JP4962864B2 (ja) 2007-12-07 2007-12-07 二乗平均平方根傾斜角の算出方法

Publications (1)

Publication Number Publication Date
SG152971A1 true SG152971A1 (en) 2009-06-29

Family

ID=40721992

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200805729-1A SG152971A1 (en) 2007-12-07 2008-08-01 Substrate for perpendicular magnetic recording media and perpendicular magnetic recording media using same

Country Status (5)

Country Link
US (1) US7875374B2 (ja)
JP (1) JP4962864B2 (ja)
CN (1) CN101452708B (ja)
MY (1) MY157749A (ja)
SG (1) SG152971A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8734967B2 (en) * 2008-06-30 2014-05-27 Hoya Corporation Substrate for magnetic disk and magnetic disk
CN102754152B (zh) * 2011-01-07 2015-11-25 旭硝子株式会社 信息记录媒体用玻璃基板制造方法
JP2012169024A (ja) * 2011-02-16 2012-09-06 Showa Denko Kk 磁気記録媒体用ガラス基板の製造方法
US9564166B2 (en) * 2012-08-29 2017-02-07 Hoya Corporation Magnetic-disk glass substrate and magnetic disk
SG11201501453WA (en) * 2012-09-28 2015-05-28 Hoya Corp Magnetic-disk glass substrate and magnetic disk
CN106716532B (zh) * 2014-10-14 2019-07-02 Hoya株式会社 磁盘用基板的制造方法
JP2018101451A (ja) * 2015-04-23 2018-06-28 旭硝子株式会社 磁気記録媒体用基板、磁気記録媒体、及び製造方法
JP6776984B2 (ja) * 2017-03-31 2020-10-28 Tdk株式会社 永久磁石薄膜

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5645917A (en) * 1991-04-25 1997-07-08 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPH0567321A (ja) * 1991-09-09 1993-03-19 Sony Corp 磁気記録媒体
JPH07225943A (ja) * 1994-02-15 1995-08-22 Fuji Electric Co Ltd 磁気記録媒体
MY127591A (en) * 1999-03-31 2006-12-29 Hoya Corp Substrate for an information recording medium, information recording medium using the substrate, and method of producing the substrate
US6753078B2 (en) * 2001-10-30 2004-06-22 Imation Corp. Recording noise reduction
JP4813050B2 (ja) * 2003-12-03 2011-11-09 三星電子株式会社 表示板及びこれを含む液晶表示装置
JP2005190552A (ja) * 2003-12-25 2005-07-14 Hitachi Global Storage Technologies Netherlands Bv 磁気記録媒体
JP2005233844A (ja) * 2004-02-20 2005-09-02 Mitsubishi Electric Corp 超音波式傾斜計測装置
JP2005276367A (ja) * 2004-03-25 2005-10-06 Toshiba Corp 垂直磁気記録媒体及び磁気記録再生装置
JP2006286029A (ja) * 2005-03-31 2006-10-19 Toshiba Corp 垂直磁気ディスク装置
US7649614B2 (en) * 2005-06-10 2010-01-19 Asml Netherlands B.V. Method of characterization, method of characterizing a process operation, and device manufacturing method
JP4793765B2 (ja) 2005-06-28 2011-10-12 日本電気株式会社 Ｄｐｓｋ変復調方法、これを用いた光通信装置および光通信システム
WO2007010908A1 (en) 2005-07-15 2007-01-25 Showa Denko K.K. Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus
JP2007026536A (ja) 2005-07-15 2007-02-01 Showa Denko Kk 磁気記録媒体およびその製造方法並びに磁気記録再生装置
JP2008293552A (ja) * 2007-05-22 2008-12-04 Fujitsu Ltd 基板、磁気記録媒体及びその製造方法、並びに磁気記憶装置

Also Published As

Publication number Publication date
JP2009140584A (ja) 2009-06-25
CN101452708B (zh) 2012-05-23
US20090148725A1 (en) 2009-06-11
MY157749A (en) 2016-07-15
JP4962864B2 (ja) 2012-06-27
US7875374B2 (en) 2011-01-25
CN101452708A (zh) 2009-06-10

Similar Documents

Publication Publication Date Title
SG152971A1 (en) Substrate for perpendicular magnetic recording media and perpendicular magnetic recording media using same
WO2014020075A8 (de) Schleifkorn, enthaltend eine erste fläche ohne ecke und zweite fläche mit ecke
WO2012115527A3 (en) Recombinant microorganisms and uses therefor
SG165301A1 (en) Perpendicular magnetic recording medium
WO2009143376A3 (en) Ionic liquids and methods for using the same
IL190322A (en) Nutritional substrate for cell culture culture
EP2036867A4 (en) GLASS FOR USE AS SUBSTRATE OF INFORMATION REGISTRATION MEDIUM, SUBSTRATE OF INFORMATION REGISTRATION MEDIUM; INFORMATION RECORDING MEDIUM AND MANUFACTURING METHOD THEREFOR
EP2037452B8 (en) Perpendicular magnetic recording medium and method of manufacturing the same
UA94075C2 (ru) Покрытый пустотелыми телами пигмент из диоксида титана, способ его получения и применения
MY167819A (en) Glass substrate for magnetic disk and manufacturing method of the same
SG164353A1 (en) Single-sided perpendicular magnetic recording medium
WO2009061670A3 (en) Workpiece support with fluid zones for temperature control
GB2454386A (en) Method for stem cell culture and cells derived therefrom
WO2007037906A3 (en) Methods for synthesis of metal nanowires
WO2009105570A3 (en) Methods, surface modified plates and compositions for cell attachment, cultivation and detachment
EP1932905A4 (en) PROCESS FOR PRODUCING FUNGAL CULTURE
WO2008059387A8 (en) Processed rice hull material as germination and plant growth medium
MY151435A (en) Polishing slurry, production method of glass substrate for information recording medium and production method of information recording medium
WO2011066496A3 (en) Glass article with an anti-smudge surface and a method of making the same
WO2010064895A3 (en) Decorative film and method for manufacturing the same
WO2012058657A3 (en) High hardness low surface energy coating
TW200833720A (en) Coated product containing a scratch-resistant layer having a high refractive index
SG150455A1 (en) Method of manufacturing glass substrate, glass substrate manufactured by the method, and magnetic recording medium using the glass substrate
WO2007147674A3 (de) Verfahren zur herstellung von dreidimensional strukturierten oberflächen
WO2008157261A3 (en) Coating composition