JP2004178794A5 - - Google Patents

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JP2004178794A5
JP2004178794A5 JP2003392062A JP2003392062A JP2004178794A5 JP 2004178794 A5 JP2004178794 A5 JP 2004178794A5 JP 2003392062 A JP2003392062 A JP 2003392062A JP 2003392062 A JP2003392062 A JP 2003392062A JP 2004178794 A5 JP2004178794 A5 JP 2004178794A5
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layer
soft magnetic
support layer
recording
substrate
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JP2003392062A
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JP2004178794A (ja
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Priority claimed from US10/306,315 external-priority patent/US7147790B2/en
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JP2003392062A 2002-11-27 2003-11-21 垂直磁気離散トラック記録ディスク Pending JP2004178794A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/306,315 US7147790B2 (en) 2002-11-27 2002-11-27 Perpendicular magnetic discrete track recording disk

Publications (2)

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JP2004178794A JP2004178794A (ja) 2004-06-24
JP2004178794A5 true JP2004178794A5 (cg-RX-API-DMAC7.html) 2006-12-28

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JP2003392062A Pending JP2004178794A (ja) 2002-11-27 2003-11-21 垂直磁気離散トラック記録ディスク

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US (3) US7147790B2 (cg-RX-API-DMAC7.html)
JP (1) JP2004178794A (cg-RX-API-DMAC7.html)
DE (1) DE10352776A1 (cg-RX-API-DMAC7.html)
MY (1) MY134086A (cg-RX-API-DMAC7.html)

Families Citing this family (154)

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Publication number Priority date Publication date Assignee Title
US7019924B2 (en) * 2001-02-16 2006-03-28 Komag, Incorporated Patterned medium and recording head
US20050036223A1 (en) * 2002-11-27 2005-02-17 Wachenschwanz David E. Magnetic discrete track recording disk
US7147790B2 (en) * 2002-11-27 2006-12-12 Komag, Inc. Perpendicular magnetic discrete track recording disk
JP2004259306A (ja) * 2003-02-24 2004-09-16 Hitachi Ltd 磁気記録媒体および磁気記録媒体の製造方法
FR2860636B1 (fr) * 2003-10-03 2006-12-29 Commissariat Energie Atomique Support de stockage d'informations et procede de fabrication d'un tel support
US6967798B2 (en) * 2003-12-19 2005-11-22 Komag, Inc. Magnetic recording disk having DTR patterned CSS zone
JP2005209273A (ja) * 2004-01-22 2005-08-04 Tdk Corp 磁性材を含む被加工体の加工方法及び磁気記録媒体の製造方法
US8148251B2 (en) * 2004-01-30 2012-04-03 Hewlett-Packard Development Company, L.P. Forming a semiconductor device
JP4105654B2 (ja) * 2004-04-14 2008-06-25 富士通株式会社 垂直磁気記録媒体、磁気記憶装置、および垂直磁気記録媒体の製造方法
JP4331066B2 (ja) * 2004-07-16 2009-09-16 株式会社東芝 磁気記録媒体、磁気記録装置、およびスタンパ
JP2006127681A (ja) * 2004-10-29 2006-05-18 Hitachi Ltd 磁気記録媒体及びその製造方法、磁気記録再生装置
US7409759B2 (en) * 2004-12-16 2008-08-12 Asml Holding N.V. Method for making a computer hard drive platen using a nano-plate
US7331283B2 (en) * 2004-12-16 2008-02-19 Asml Holding N.V. Method and apparatus for imprint pattern replication
US7363854B2 (en) * 2004-12-16 2008-04-29 Asml Holding N.V. System and method for patterning both sides of a substrate utilizing imprint lithography
US7410591B2 (en) * 2004-12-16 2008-08-12 Asml Holding N.V. Method and system for making a nano-plate for imprint lithography
JP4679585B2 (ja) * 2004-12-16 2011-04-27 エーエスエムエル ホールディング エヌ．ブイ． インプリントリソグラフィに使用されるナノディスクを形成するための方法
US7399422B2 (en) * 2005-11-29 2008-07-15 Asml Holding N.V. System and method for forming nanodisks used in imprint lithography and nanodisk and memory disk formed thereby
US7161753B2 (en) * 2005-01-28 2007-01-09 Komag, Inc. Modulation of sidewalls of servo sectors of a magnetic disk and the resultant disk
JP4098784B2 (ja) * 2005-02-03 2008-06-11 株式会社東芝 磁気記録媒体、磁気記録装置、スタンパおよびスタンパの製造方法
US7553426B2 (en) * 2005-03-01 2009-06-30 Hitachi Global Storage Technologies Netherlands B.V. Apparatus, system, and method for increasing data storage density in patterned media
JP2006260713A (ja) * 2005-03-18 2006-09-28 Toshiba Corp 記録媒体、記録再生装置及び記録再生方法
JP2006268984A (ja) * 2005-03-25 2006-10-05 Nihon Micro Coating Co Ltd 垂直磁気記録ディスク及びその製造方法
US7667929B2 (en) * 2005-04-04 2010-02-23 Hitachi Global Storage Technologies Netherlands B.V. Apparatus, method and system for fabricating a patterned media imprint master
US7771852B2 (en) * 2005-06-09 2010-08-10 Hitachi Global Storage Technologies Netherlands B.V. Magnetic recording disk with patterned nondata islands of alternating polarity
JP4542953B2 (ja) 2005-06-10 2010-09-15 株式会社東芝 磁気ディスク媒体および磁気記録再生装置
JP4634874B2 (ja) * 2005-06-28 2011-02-16 株式会社東芝 磁気記録媒体の製造方法
JP2007035164A (ja) * 2005-07-27 2007-02-08 Toshiba Corp 凹凸パターン基板およびその製造方法、磁気記録媒体、ならびに磁気記録装置
US20070025010A1 (en) * 2005-07-28 2007-02-01 Xyratex Technology Limited Method of and apparatus for forming servo bursts on a magnetic storage disk
US7236324B2 (en) * 2005-10-18 2007-06-26 Hitachi Global Storage Technologies Apparatus, method and system for fabricating servo patterns on high density patterned media
US7876529B1 (en) 2005-11-03 2011-01-25 Seagate Technology Llc Recording disk with antiferromagnetically coupled multilayer ferromagnetic island disposed in trench between discrete tracks
US7446984B2 (en) * 2005-12-14 2008-11-04 Hitachi Global Storage Technologies Netherlands B.V. Magnetic random access memory (MRAM) having increased reference layer anisotropy through ion beam etch of magnetic layers
WO2007091702A1 (en) 2006-02-10 2007-08-16 Showa Denko K.K. Magnetic recording medium, method for production thereof and magnetic recording and reproducing device
WO2007094481A1 (en) * 2006-02-14 2007-08-23 Showa Denko K.K. Magnetic recording medium5 method for production thereof and magnetic recording and reproducing device
JP4533854B2 (ja) * 2006-03-06 2010-09-01 株式会社東芝 磁気記録再生装置、磁気記録方法、及び磁気記録再生方法
JP2007250059A (ja) * 2006-03-15 2007-09-27 Fuji Electric Device Technology Co Ltd 磁気記録媒体及びその製造方法
JP4585476B2 (ja) 2006-03-16 2010-11-24 株式会社東芝 パターンド媒体および磁気記録装置
JP2007273042A (ja) * 2006-03-31 2007-10-18 Toshiba Corp 磁気記録媒体及び磁気記録再生装置
JP2008041114A (ja) * 2006-08-01 2008-02-21 Showa Denko Kk 磁気記録媒体の製造方法、及び磁気記録再生装置
JP2008052860A (ja) * 2006-08-28 2008-03-06 Showa Denko Kk 磁気記録媒体の製造方法、及び磁気記録再生装置
JP4597933B2 (ja) * 2006-09-21 2010-12-15 昭和電工株式会社 磁気記録媒体の製造方法、並びに磁気記録再生装置
JP4634354B2 (ja) * 2006-09-22 2011-02-16 昭和電工株式会社 磁気記録媒体の製造方法
JP2008135092A (ja) * 2006-11-27 2008-06-12 Showa Denko Kk 磁気記録媒体の製造方法、及び磁気記録再生装置
JP4557994B2 (ja) * 2007-02-22 2010-10-06 株式会社日立製作所 磁気記録媒体の製造方法
DE502007005337D1 (de) * 2007-03-21 2010-11-25 Thallner Erich Verfahren und Vorrichtung zur Erzeugung einer nanostrukturierten Scheibe
US20080259482A1 (en) * 2007-04-20 2008-10-23 Samsung Electronics Co., Ltd. Fabrication of discrete track media for narrow groove and improved reliability
JP2008282512A (ja) 2007-05-14 2008-11-20 Toshiba Corp 磁気記録媒体及び磁気記録再生装置
JP4881908B2 (ja) * 2007-06-19 2012-02-22 昭和電工株式会社 磁気記録媒体の製造方法及び磁気記録再生装置
US9017833B2 (en) * 2007-06-29 2015-04-28 Seagate Technology Llc Patterned magnetic media for magnetic recording
WO2009017016A1 (ja) * 2007-07-30 2009-02-05 Showa Denko K.K. 磁気記録媒体の製造方法および磁気記録再生装置
US7776388B2 (en) * 2007-09-05 2010-08-17 Hitachi Global Storage Technologies Netherlands, B.V. Fabricating magnetic recording media on patterned seed layers
TW200927294A (en) * 2007-09-14 2009-07-01 Showa Denko Kk Apparatus and method for coating double-sided substrate
JP4843825B2 (ja) * 2007-09-21 2011-12-21 昭和電工株式会社 磁気記録媒体の製造方法及び磁気記録再生装置
JP4382843B2 (ja) 2007-09-26 2009-12-16 株式会社東芝 磁気記録媒体およびその製造方法
TWI444282B (zh) * 2007-10-19 2014-07-11 Showa Denko Kk 樹脂壓模（ｓｔａｍｐｅｒ）之製造方法及製造裝置及壓印（ｉｍｐｒｉｎｔ）方法、以及磁性記錄媒體及磁性記錄再生裝置
JP2009117012A (ja) * 2007-11-09 2009-05-28 Fuji Electric Device Technology Co Ltd 磁気記録媒体の製造方法
JP2009117013A (ja) * 2007-11-09 2009-05-28 Fuji Electric Device Technology Co Ltd 磁気記録媒体の製造方法
US8394514B2 (en) * 2007-12-03 2013-03-12 Showa Denko K.K. Method for producing magnetic recording medium and magnetic recording/reproducing apparatus
JP2011507131A (ja) 2007-12-06 2011-03-03 インテバック・インコーポレイテッド パターン化媒体を商業的に製造するシステム及び方法
JP5244380B2 (ja) * 2007-12-26 2013-07-24 昭和電工株式会社 磁気記録媒体の製造方法及び磁気記録再生装置
US8795763B2 (en) * 2007-12-26 2014-08-05 Headway Technologies, Inc. Perpendicular magnetic medium with shields between tracks
JP5383050B2 (ja) * 2008-01-11 2014-01-08 昭和電工株式会社 磁気記録媒体の製造方法及び磁気記録再生装置
JP4821780B2 (ja) * 2008-01-17 2011-11-24 昭和電工株式会社 磁気記録媒体および磁気記録再生装置
JP5264209B2 (ja) * 2008-02-22 2013-08-14 エイチジーエスティーネザーランドビーブイ 磁気記録媒体及びその製造方法
JP2009199691A (ja) * 2008-02-22 2009-09-03 Hitachi Global Storage Technologies Netherlands Bv 磁気記録媒体及びその製造方法
JP5276337B2 (ja) * 2008-02-22 2013-08-28 エイチジーエスティーネザーランドビーブイ 磁気記録媒体の製造方法
JP5238290B2 (ja) * 2008-02-28 2013-07-17 昭和電工株式会社 磁気記録媒体の製造方法
JP5431678B2 (ja) * 2008-03-05 2014-03-05 昭和電工株式会社 磁気記録媒体の製造方法、磁気記録媒体、及び磁気記録再生装置
JP5117895B2 (ja) 2008-03-17 2013-01-16 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 磁気記録媒体及びその製造方法
JP4968591B2 (ja) * 2008-03-21 2012-07-04 富士電機株式会社 磁気記録媒体およびその製造方法
JP2009238299A (ja) 2008-03-26 2009-10-15 Hoya Corp 垂直磁気記録媒体および垂直磁気記録媒体の製造方法
JP5453666B2 (ja) 2008-03-30 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 磁気ディスク及びその製造方法
US8358481B2 (en) * 2008-04-02 2013-01-22 Headway Technologies, Inc. Nano-lithography with rotating target and servo-positioned tip
JP5398163B2 (ja) * 2008-04-04 2014-01-29 昭和電工株式会社 磁気記録媒体及びその製造方法、並びに磁気記録再生装置
JP2009277275A (ja) * 2008-05-13 2009-11-26 Showa Denko Kk 磁気記録媒体の製造方法および製造装置
JP5247231B2 (ja) * 2008-05-15 2013-07-24 昭和電工株式会社 磁気記録媒体の製造方法
JP5438917B2 (ja) 2008-05-21 2014-03-12 昭和電工株式会社 磁気記録媒体の評価方法および製造方法
TWI416514B (zh) * 2008-05-23 2013-11-21 Showa Denko Kk 樹脂模製作用疊層體、疊層體、樹脂模、及磁性記錄媒體的製造方法
US9761262B2 (en) * 2008-07-02 2017-09-12 Seagate Technology Llc Planarization methodology for topographically challenged media surface
JP2010020844A (ja) * 2008-07-10 2010-01-28 Showa Denko Kk 磁気記録媒体の製造方法、磁気記録再生装置、及び磁気記録媒体
JP2010020841A (ja) * 2008-07-10 2010-01-28 Showa Denko Kk インライン式成膜装置及び磁気記録媒体の製造方法
WO2010038773A1 (ja) 2008-09-30 2010-04-08 Hoya株式会社 磁気ディスク及びその製造方法
JP2010108540A (ja) * 2008-10-29 2010-05-13 Showa Denko Kk 磁気記録媒体の製造方法、磁気記録媒体、及び磁気記録再生装置
JP2010113771A (ja) * 2008-11-07 2010-05-20 Showa Denko Kk 磁気記録媒体の製造方法及び製造装置
JP5186345B2 (ja) * 2008-12-01 2013-04-17 昭和電工株式会社 磁気記録媒体の製造方法
WO2010064724A1 (ja) 2008-12-05 2010-06-10 Hoya株式会社 磁気ディスク及びその製造方法
JP2010140544A (ja) * 2008-12-10 2010-06-24 Showa Denko Kk 磁気記録媒体の製造方法及び磁気記録媒体、並びに磁気記録再生装置
WO2010116908A1 (ja) 2009-03-28 2010-10-14 Hoya株式会社 磁気ディスク用潤滑剤化合物及び磁気ディスク
SG165294A1 (en) 2009-03-30 2010-10-28 Wd Media Singapore Pte Ltd Perpendicular magnetic recording medium and method of manufacturing the same
US20100300884A1 (en) 2009-05-26 2010-12-02 Wd Media, Inc. Electro-deposited passivation coatings for patterned media
US8247095B2 (en) * 2009-08-21 2012-08-21 Western Digital Technologies, Inc. Energy assisted discrete track media with heat sink
JP2011090724A (ja) 2009-10-20 2011-05-06 Showa Denko Kk 磁気記録媒体の製造方法及び磁気記録再生装置
US9330685B1 (en) 2009-11-06 2016-05-03 WD Media, LLC Press system for nano-imprinting of recording media with a two step pressing method
US8496466B1 (en) 2009-11-06 2013-07-30 WD Media, LLC Press system with interleaved embossing foil holders for nano-imprinting of recording media
JP2011129227A (ja) 2009-12-21 2011-06-30 Showa Denko Kk 磁気記録媒体の製造方法及び磁気記録再生装置
JP5643516B2 (ja) 2010-01-08 2014-12-17 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
JP5574414B2 (ja) 2010-03-29 2014-08-20 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 磁気ディスクの評価方法及び磁気ディスクの製造方法
JP5634749B2 (ja) 2010-05-21 2014-12-03 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 垂直磁気ディスク
JP5645476B2 (ja) 2010-05-21 2014-12-24 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 垂直磁気ディスク
JP2011248968A (ja) 2010-05-28 2011-12-08 Wd Media (Singapore) Pte. Ltd 垂直磁気ディスク
JP2011248969A (ja) 2010-05-28 2011-12-08 Wd Media (Singapore) Pte. Ltd 垂直磁気ディスク
JP2011248967A (ja) 2010-05-28 2011-12-08 Wd Media (Singapore) Pte. Ltd 垂直磁気ディスクの製造方法
JP2012009086A (ja) 2010-06-22 2012-01-12 Wd Media (Singapore) Pte. Ltd 垂直磁気記録媒体及びその製造方法
US8889275B1 (en) 2010-08-20 2014-11-18 WD Media, LLC Single layer small grain size FePT:C film for heat assisted magnetic recording media
JP5698952B2 (ja) 2010-10-22 2015-04-08 昭和電工株式会社 磁気記録媒体の製造方法及び磁気記録再生装置
US8743666B1 (en) 2011-03-08 2014-06-03 Western Digital Technologies, Inc. Energy assisted magnetic recording medium capable of suppressing high DC readback noise
US8711499B1 (en) 2011-03-10 2014-04-29 WD Media, LLC Methods for measuring media performance associated with adjacent track interference
US8491800B1 (en) 2011-03-25 2013-07-23 WD Media, LLC Manufacturing of hard masks for patterning magnetic media
US9028985B2 (en) 2011-03-31 2015-05-12 WD Media, LLC Recording media with multiple exchange coupled magnetic layers
US8609263B1 (en) 2011-05-20 2013-12-17 WD Media, LLC Systems and methods for forming magnetic media with an underlayer
US8565050B1 (en) 2011-12-20 2013-10-22 WD Media, LLC Heat assisted magnetic recording media having moment keeper layer
US9029308B1 (en) 2012-03-28 2015-05-12 WD Media, LLC Low foam media cleaning detergent
US9269480B1 (en) 2012-03-30 2016-02-23 WD Media, LLC Systems and methods for forming magnetic recording media with improved grain columnar growth for energy assisted magnetic recording
US8941950B2 (en) 2012-05-23 2015-01-27 WD Media, LLC Underlayers for heat assisted magnetic recording (HAMR) media
US8993134B2 (en) 2012-06-29 2015-03-31 Western Digital Technologies, Inc. Electrically conductive underlayer to grow FePt granular media with (001) texture on glass substrates
US9034492B1 (en) 2013-01-11 2015-05-19 WD Media, LLC Systems and methods for controlling damping of magnetic media for heat assisted magnetic recording
US10115428B1 (en) 2013-02-15 2018-10-30 Wd Media, Inc. HAMR media structure having an anisotropic thermal barrier layer
US9153268B1 (en) 2013-02-19 2015-10-06 WD Media, LLC Lubricants comprising fluorinated graphene nanoribbons for magnetic recording media structure
US9183867B1 (en) 2013-02-21 2015-11-10 WD Media, LLC Systems and methods for forming implanted capping layers in magnetic media for magnetic recording
US9196283B1 (en) 2013-03-13 2015-11-24 Western Digital (Fremont), Llc Method for providing a magnetic recording transducer using a chemical buffer
US9190094B2 (en) 2013-04-04 2015-11-17 Western Digital (Fremont) Perpendicular recording media with grain isolation initiation layer and exchange breaking layer for signal-to-noise ratio enhancement
US9093122B1 (en) 2013-04-05 2015-07-28 WD Media, LLC Systems and methods for improving accuracy of test measurements involving aggressor tracks written to disks of hard disk drives
US8947987B1 (en) 2013-05-03 2015-02-03 WD Media, LLC Systems and methods for providing capping layers for heat assisted magnetic recording media
US8867322B1 (en) 2013-05-07 2014-10-21 WD Media, LLC Systems and methods for providing thermal barrier bilayers for heat assisted magnetic recording media
US9296082B1 (en) 2013-06-11 2016-03-29 WD Media, LLC Disk buffing apparatus with abrasive tape loading pad having a vibration absorbing layer
US9406330B1 (en) 2013-06-19 2016-08-02 WD Media, LLC Method for HDD disk defect source detection
US9607646B2 (en) 2013-07-30 2017-03-28 WD Media, LLC Hard disk double lubrication layer
US9389135B2 (en) 2013-09-26 2016-07-12 WD Media, LLC Systems and methods for calibrating a load cell of a disk burnishing machine
US9177585B1 (en) 2013-10-23 2015-11-03 WD Media, LLC Magnetic media capable of improving magnetic properties and thermal management for heat-assisted magnetic recording
US9581510B1 (en) 2013-12-16 2017-02-28 Western Digital Technologies, Inc. Sputter chamber pressure gauge with vibration absorber
US9382496B1 (en) 2013-12-19 2016-07-05 Western Digital Technologies, Inc. Lubricants with high thermal stability for heat-assisted magnetic recording
US9824711B1 (en) 2014-02-14 2017-11-21 WD Media, LLC Soft underlayer for heat assisted magnetic recording media
US9447368B1 (en) 2014-02-18 2016-09-20 WD Media, LLC Detergent composition with low foam and high nickel solubility
US9431045B1 (en) 2014-04-25 2016-08-30 WD Media, LLC Magnetic seed layer used with an unbalanced soft underlayer
US9042053B1 (en) 2014-06-24 2015-05-26 WD Media, LLC Thermally stabilized perpendicular magnetic recording medium
US9159350B1 (en) 2014-07-02 2015-10-13 WD Media, LLC High damping cap layer for magnetic recording media
US10054363B2 (en) 2014-08-15 2018-08-21 WD Media, LLC Method and apparatus for cryogenic dynamic cooling
US9082447B1 (en) 2014-09-22 2015-07-14 WD Media, LLC Determining storage media substrate material type
US9227324B1 (en) 2014-09-25 2016-01-05 WD Media, LLC Mandrel for substrate transport system with notch
US9685184B1 (en) 2014-09-25 2017-06-20 WD Media, LLC NiFeX-based seed layer for magnetic recording media
US8995078B1 (en) 2014-09-25 2015-03-31 WD Media, LLC Method of testing a head for contamination
US9449633B1 (en) 2014-11-06 2016-09-20 WD Media, LLC Smooth structures for heat-assisted magnetic recording media
US9818442B2 (en) 2014-12-01 2017-11-14 WD Media, LLC Magnetic media having improved magnetic grain size distribution and intergranular segregation
US9401300B1 (en) 2014-12-18 2016-07-26 WD Media, LLC Media substrate gripper including a plurality of snap-fit fingers
US9218850B1 (en) 2014-12-23 2015-12-22 WD Media, LLC Exchange break layer for heat-assisted magnetic recording media
US9257134B1 (en) 2014-12-24 2016-02-09 Western Digital Technologies, Inc. Allowing fast data zone switches on data storage devices
US9990940B1 (en) 2014-12-30 2018-06-05 WD Media, LLC Seed structure for perpendicular magnetic recording media
US9280998B1 (en) 2015-03-30 2016-03-08 WD Media, LLC Acidic post-sputter wash for magnetic recording media
US9275669B1 (en) 2015-03-31 2016-03-01 WD Media, LLC TbFeCo in PMR media for SNR improvement
US9822441B2 (en) 2015-03-31 2017-11-21 WD Media, LLC Iridium underlayer for heat assisted magnetic recording media
US11074934B1 (en) 2015-09-25 2021-07-27 Western Digital Technologies, Inc. Heat assisted magnetic recording (HAMR) media with Curie temperature reduction layer
US10236026B1 (en) 2015-11-06 2019-03-19 WD Media, LLC Thermal barrier layers and seed layers for control of thermal and structural properties of HAMR media
US9406329B1 (en) 2015-11-30 2016-08-02 WD Media, LLC HAMR media structure with intermediate layer underlying a magnetic recording layer having multiple sublayers
US10121506B1 (en) 2015-12-29 2018-11-06 WD Media, LLC Magnetic-recording medium including a carbon overcoat implanted with nitrogen and hydrogen
US11670337B1 (en) 2021-12-02 2023-06-06 Seagate Technology Llc Discrete track magnetic recording for EAMR

Family Cites Families (105)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US38544A (en) * 1863-05-19 Improvement in apparatus for sewerage
US80471A (en) * 1868-07-28 Improved lubricating compound
US177319A (en) * 1876-05-16 Improvement in rolling-pins
US41306A (en) * 1864-01-19 Improved machine for straightening metal bars, rails, tubes
US289382A (en) * 1883-12-04 Hay-tedder
US34329A (en) * 1862-02-04 Improved iron ponton
US170996A (en) * 1875-12-14 Improvement in wheel-hubs
US71214A (en) * 1867-11-19 poster
US64251A (en) * 1867-04-30 Henry pembebton
US136927A (en) * 1873-03-18 Improvement in molders pots or ladles
US135939A (en) * 1873-02-18 Improvement in spindles for spinning-machines
US179481A (en) * 1876-07-04 Improvement in opera-chairs
US22024A (en) * 1858-11-09 jensen
US170995A (en) * 1875-12-14 Improvement in lamp-wicks
JPH0664730B2 (ja) 1986-08-15 1994-08-22 日本電気株式会社 磁気記録体
JPH0223517A (ja) 1988-07-12 1990-01-25 Fujitsu Ltd 垂直磁気記録媒体
US5029317A (en) * 1989-05-31 1991-07-02 Hoya Corporation Magnetic recording medium capable of recording information at a high recording density
JP2851325B2 (ja) 1989-10-27 1999-01-27 株式会社日立製作所 磁気記憶装置
US5568331A (en) * 1989-10-27 1996-10-22 Hitachi, Ltd. Method of head positioning and magnetic recording disk drive using the same
JPH03142702A (ja) 1989-10-30 1991-06-18 Hitachi Ltd 垂直磁気記録装置
KR0156576B1 (ko) * 1989-12-27 1998-12-15 다끼사와 다께시 분말의 결합제 및 이를 사용한 자기 기록매체
JP2700043B2 (ja) 1991-04-16 1998-01-19 沖電気工業株式会社 磁気記録媒体
JPH0580530A (ja) * 1991-09-24 1993-04-02 Hitachi Ltd 薄膜パターン製造方法
US5421975A (en) * 1992-10-13 1995-06-06 Mahvan; Nader Method for enhancing the magnetic and roughness properties of thin film magnetic recording media and the resulting enhanced media
JP3172000B2 (ja) 1993-03-11 2001-06-04 株式会社東芝 磁気記録再生装置
TW279972B (cg-RX-API-DMAC7.html) * 1993-06-21 1996-07-01 Komag Inc
US5512131A (en) * 1993-10-04 1996-04-30 President And Fellows Of Harvard College Formation of microstamped patterns on surfaces and derivative articles
USRE38544E1 (en) * 1994-01-28 2004-07-06 Komag, Inc. Thin film magnetic alloy having low noise, high coercivity and high squareness
US5537282A (en) * 1994-07-15 1996-07-16 Treves; David Data storage disk having improved tracking capability
US6120836A (en) * 1994-12-28 2000-09-19 Fuji Photo Film Co., Ltd. Process of producing a magnetic recording medium
US5482331A (en) * 1995-01-24 1996-01-09 Shore; James B. Quick connect coupling device
US5750270A (en) * 1995-02-07 1998-05-12 Conner Peripherals, Inc. Multi-layer magnetic recording media
JPH08249602A (ja) * 1995-03-06 1996-09-27 Mitsubishi Electric Corp 磁気式記憶再生方法ならびにそれに用いる磁気再生装置、磁気記憶媒体およびその製法
JPH08273157A (ja) * 1995-03-31 1996-10-18 A G Technol Kk 磁気ディスクの製造方法
US5820769A (en) * 1995-05-24 1998-10-13 Regents Of The University Of Minnesota Method for making magnetic storage having discrete elements with quantized magnetic moments
US6043961A (en) * 1995-09-08 2000-03-28 Kao Corporation Magnetic recording medium and method for producing the same
US6518189B1 (en) 1995-11-15 2003-02-11 Regents Of The University Of Minnesota Method and apparatus for high density nanostructures
US20030080471A1 (en) 2001-10-29 2003-05-01 Chou Stephen Y. Lithographic method for molding pattern with nanoscale features
US6309580B1 (en) 1995-11-15 2001-10-30 Regents Of The University Of Minnesota Release surfaces, particularly for use in nanoimprint lithography
US5772905A (en) * 1995-11-15 1998-06-30 Regents Of The University Of Minnesota Nanoimprint lithography
US6482742B1 (en) 2000-07-18 2002-11-19 Stephen Y. Chou Fluid pressure imprint lithography
US5786093A (en) * 1995-11-15 1998-07-28 Sony Corporation Magnetic recording medium having a backcoat composition with low chloride ion and sulfate ion extractables
KR0182952B1 (ko) * 1995-12-21 1999-04-15 김광호 자기 디스크 기록장치의 기록전류 제어회로와 그 최적화방법
US5828536A (en) * 1996-01-24 1998-10-27 Sony Corporation Magnetic disk and magnetic disk device in which control data section of disk has structural relationship to slider and/or data section
JP3690861B2 (ja) * 1996-03-15 2005-08-31 富士写真フイルム株式会社 磁気記録媒体およびその製造方法
US6104579A (en) * 1996-04-11 2000-08-15 Sony Corporation Magnetic disk head having data zone and control signal zones which generate different lifts when flown over by a head slider
EP0847042A4 (en) * 1996-06-26 1999-08-18 Sony Corp Magnetic disk apparatus, magnetic disk and disk cartridge
TW342495B (en) * 1996-07-22 1998-10-11 Matsushita Electric Industrial Co Ltd Master information carrier, method of producing the same, and method for recording master information signal on magnetic recording medium
JPH10149539A (ja) 1996-11-19 1998-06-02 Sony Corp 磁気ディスク装置
EP0859332A1 (en) * 1997-02-12 1998-08-19 STMicroelectronics S.r.l. Word recognition device and method
MY124578A (en) * 1997-06-17 2006-06-30 Showa Denko Kk Magnetic hard disc substrate and process for manufacturing the same
US5940250A (en) * 1997-10-21 1999-08-17 Maxtor Corporation Disk drive head having a read wide/write narrow architecture
TW363183B (en) * 1997-11-19 1999-07-01 Showa Denko Hd Trace Corp Manufacturing method and structure of magnetic recording media with light texture
US6150015A (en) * 1997-12-04 2000-11-21 Komag, Incorporated Ultra-thin nucleation layer for magnetic thin film media and the method for manufacturing the same
US6381090B1 (en) * 1998-05-21 2002-04-30 Komag, Incorporated Hard disk drive head-media system having reduced stiction and low fly height
US6713238B1 (en) 1998-10-09 2004-03-30 Stephen Y. Chou Microscale patterning and articles formed thereby
US6146755A (en) 1998-10-15 2000-11-14 International Business Machines Corporation High density magnetic recording medium utilizing selective growth of ferromagnetic material
US6406611B1 (en) * 1999-12-08 2002-06-18 University Of Alabama In Huntsville Nickel cobalt phosphorous low stress electroplating
US6168845B1 (en) * 1999-01-19 2001-01-02 International Business Machines Corporation Patterned magnetic media and method of making the same using selective oxidation
US6665145B2 (en) * 1999-02-10 2003-12-16 Tdk Corporation Magnetic recording medium with unit minute recording portions
BR0008208A (pt) 1999-02-12 2002-02-19 Gen Electric Meios de armazenamento de dados
US6440520B1 (en) * 1999-07-09 2002-08-27 International Business Machines Corporation Patterned magnetic recording disk with substrate patterned by ion implantation
US6738207B1 (en) * 1999-08-18 2004-05-18 Seagate Technology Llc Method for synchronizing the write current for magnetic recording with the bit islands on discrete bit patterned media
US6391213B1 (en) * 1999-09-07 2002-05-21 Komag, Inc. Texturing of a landing zone on glass-based substrates by a chemical etching process
JP2001084535A (ja) 1999-09-16 2001-03-30 Tdk Corp 薄膜磁気ヘッドの製造方法および磁気抵抗効果装置の製造方法
JP2000099942A (ja) 1999-10-29 2000-04-07 Hitachi Ltd 磁気ディスクおよび磁気ディスク用基板
US6594103B1 (en) * 1999-11-12 2003-07-15 Acorn Technologies, Inc. Read channel generating absolute value servo signal
US6510015B2 (en) * 1999-12-10 2003-01-21 Seagate Technology Llc Magnetic disc having physical servo patterns with a magnetic carrier, and method of making and using the same
JP2001344713A (ja) * 2000-05-29 2001-12-14 Fujitsu Ltd 薄膜磁気ヘッドの製造方法と薄膜磁気ヘッド
SG91343A1 (en) * 2000-07-19 2002-09-17 Toshiba Kk Perpendicular magnetic recording medium and magnetic recording apparatus
US6572922B1 (en) * 2000-07-25 2003-06-03 Seagate Technology Llc Eliminating gel particle-related defects for obtaining sub-micron flyability over sol-gel—coated disk substrates
US6703099B2 (en) * 2000-07-27 2004-03-09 Seagate Technology Llc Perpendicular magnetic recording media with patterned soft magnetic underlayer
US6667118B1 (en) * 2000-09-05 2003-12-23 Seagate Technology Llc Texture-induced magnetic anisotropy of soft underlayers for perpendicular recording media
JP2002092829A (ja) 2000-09-21 2002-03-29 Fujitsu Ltd 磁気抵抗センサ及び磁気抵抗ヘッド
JP3762277B2 (ja) * 2000-09-29 2006-04-05 キヤノン株式会社 磁気記録媒体及びその製造方法
US6814898B1 (en) 2000-10-17 2004-11-09 Seagate Technology Llc Imprint lithography utilizing room temperature embossing
CN1447966A (zh) * 2000-12-28 2003-10-08 日立麦克赛尔株式会社 磁记录介质及其制造方法以及磁存储设备
US6955857B2 (en) * 2000-12-29 2005-10-18 Seagate Technology Llc Exchange decoupled cobalt/noble metal perpendicular recording media
US6905780B2 (en) 2001-02-01 2005-06-14 Kabushiki Kaisha Toshiba Current-perpendicular-to-plane-type magnetoresistive device, and magnetic head and magnetic recording-reproducing apparatus using the same
US7019924B2 (en) 2001-02-16 2006-03-28 Komag, Incorporated Patterned medium and recording head
JP3861197B2 (ja) 2001-03-22 2006-12-20 株式会社東芝 記録媒体の製造方法
JP3583079B2 (ja) 2001-03-26 2004-10-27 株式会社東芝 磁気抵抗効果素子、磁気ヘッド、磁気再生装置及び磁気記憶装置
JP2003016636A (ja) * 2001-04-27 2003-01-17 Sharp Corp 磁気記録媒体およびそれを用いた磁気記録装置
US6886108B2 (en) * 2001-04-30 2005-04-26 Sun Microsystems, Inc. Threshold adjustment following forced failure of storage device
US20020187295A1 (en) * 2001-05-15 2002-12-12 Fuji Photo Film Co., Ltd. Magnetic transfer master medium
JP4517329B2 (ja) * 2001-07-31 2010-08-04 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体
JP2003099912A (ja) * 2001-09-21 2003-04-04 Ken Takahashi 垂直磁気記録媒体、その製造方法及び製造装置、並びに磁気記録装置
US6669983B2 (en) 2001-10-25 2003-12-30 Tdk Corporation Manufacturing method of thin-film magnetic head with magnetoresistive effect element
JP3850718B2 (ja) * 2001-11-22 2006-11-29 株式会社東芝 加工方法
JP2003178407A (ja) 2001-12-11 2003-06-27 Hitachi Ltd 磁気抵抗効果型ヘッドならびにその製造方法、および磁気記録再生装置
WO2003056555A1 (fr) * 2001-12-25 2003-07-10 Fujitsu Limited Support d'enregistrement magneto- optique
US6622907B2 (en) * 2002-02-19 2003-09-23 International Business Machines Corporation Sacrificial seed layer process for forming C4 solder bumps
US6617012B1 (en) * 2002-03-29 2003-09-09 Seagate Technology Llc Styrene-acrylonitrile as a resist for making patterned media
JP2003318464A (ja) 2002-04-23 2003-11-07 Alps Electric Co Ltd 磁気検出素子及びその製造方法
WO2004032119A1 (en) * 2002-09-30 2004-04-15 Seagate Technology Llc Soft magnetic underlayer in a magnetic storage medium
US6999279B2 (en) * 2002-10-29 2006-02-14 Imation Corp. Perpendicular patterned magnetic media
AU2003277534A1 (en) * 2002-10-31 2004-05-25 Showa Denko K.K. Perpendicular magnetic recording medium, production process thereof, and perpendicular magnetic recording and reproducing apparatus
US7147790B2 (en) * 2002-11-27 2006-12-12 Komag, Inc. Perpendicular magnetic discrete track recording disk
US20050036223A1 (en) * 2002-11-27 2005-02-17 Wachenschwanz David E. Magnetic discrete track recording disk
JP3686067B2 (ja) * 2003-10-28 2005-08-24 Ｔｄｋ株式会社 磁気記録媒体の製造方法
US6967798B2 (en) * 2003-12-19 2005-11-22 Komag, Inc. Magnetic recording disk having DTR patterned CSS zone
JP2006127681A (ja) 2004-10-29 2006-05-18 Hitachi Ltd 磁気記録媒体及びその製造方法、磁気記録再生装置
US7394622B2 (en) * 2004-12-07 2008-07-01 Seagate Technology Llc Magnetic recording media with discrete tracks of magnetic material in a magnetically soft underlayer
JP4528677B2 (ja) * 2005-06-24 2010-08-18 株式会社東芝 パターンド媒体の製造方法及び製造装置
US7443630B2 (en) * 2006-04-07 2008-10-28 Hitachi Global Storage Technologies Netherlands B.V. Apparatus, system, and method for writing magnetically encoded data to discrete lands

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