SG152223A1 - Lubricant for magnetic disks, method for producing the lubricant used in the magnetic disks, and method for manufacturing the same - Google Patents

Lubricant for magnetic disks, method for producing the lubricant used in the magnetic disks, and method for manufacturing the same

Info

Publication number
SG152223A1
SG152223A1 SG200902359-9A SG2009023599A SG152223A1 SG 152223 A1 SG152223 A1 SG 152223A1 SG 2009023599 A SG2009023599 A SG 2009023599A SG 152223 A1 SG152223 A1 SG 152223A1
Authority
SG
Singapore
Prior art keywords
lubricant
perfluoropolyether
magnetic disks
less
crude
Prior art date
Application number
SG200902359-9A
Other languages
English (en)
Inventor
Koichi Shimokawa
Original Assignee
Hoya Corp
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 Hoya Corp filed Critical Hoya Corp
Publication of SG152223A1 publication Critical patent/SG152223A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/38—Lubricating compositions characterised by the base-material being a macromolecular compound containing halogen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
    • 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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
    • G11B5/7253—Fluorocarbon lubricant
    • G11B5/7257—Perfluoropolyether lubricant
    • 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
    • G11B5/8408—Processes or apparatus specially adapted for manufacturing record carriers protecting the magnetic layer
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/04—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions obtained from monomers containing carbon, hydrogen, halogen and oxygen
    • C10M2213/043—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions obtained from monomers containing carbon, hydrogen, halogen and oxygen used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/06—Perfluoro polymers
    • C10M2213/0606—Perfluoro polymers used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/04—Molecular weight; Molecular weight distribution
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/18—Electric or magnetic purposes in connection with recordings on magnetic tape or disc

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
SG200902359-9A 2004-01-14 2005-01-12 Lubricant for magnetic disks, method for producing the lubricant used in the magnetic disks, and method for manufacturing the same SG152223A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004006315 2004-01-14

Publications (1)

Publication Number Publication Date
SG152223A1 true SG152223A1 (en) 2009-05-29

Family

ID=34792139

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200902359-9A SG152223A1 (en) 2004-01-14 2005-01-12 Lubricant for magnetic disks, method for producing the lubricant used in the magnetic disks, and method for manufacturing the same

Country Status (5)

Country Link
US (1) US8012920B2 (fr)
JP (1) JPWO2005068589A1 (fr)
CN (2) CN101494058B (fr)
SG (1) SG152223A1 (fr)
WO (1) WO2005068589A1 (fr)

Families Citing this family (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007095234A (ja) * 2005-09-30 2007-04-12 Hoya Corp 磁気記録ディスクおよびその製造方法
JP4410747B2 (ja) * 2005-09-30 2010-02-03 Ｈｏｙａ株式会社 磁気記録ディスク用潤滑剤の成分比測定方法および磁気記録ディスクの製造方法
EP2100910A1 (fr) * 2008-03-14 2009-09-16 Solvay Solexis S.p.A. Procédé de purification de dérivé de PFPE à base de polyol
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
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
WO2010038773A1 (fr) 2008-09-30 2010-04-08 Hoya株式会社 Disque magnétique et procédé servant à fabriquer le disque magnétique
US8877359B2 (en) 2008-12-05 2014-11-04 Wd Media (Singapore) Pte. Ltd. Magnetic disk and method for manufacturing same
WO2010116908A1 (fr) 2009-03-28 2010-10-14 Hoya株式会社 Composé lubrifiant pour disque magnétique et disque magnétique
JP2010257567A (ja) 2009-03-30 2010-11-11 Wd Media Singapore Pte Ltd 垂直磁気記録媒体およびその製造方法
TWI483964B (zh) * 2009-05-15 2015-05-11 Solvay Solexis Spa 多元醇ｐｆｐｅ衍生物之純化方法
KR101694567B1 (ko) 2009-05-15 2017-01-09 솔베이 스페셜티 폴리머스 이태리 에스.피.에이. 폴리올 ｐｆｐｅ 유도체의 정제 방법
US20100300884A1 (en) 2009-05-26 2010-12-02 Wd Media, Inc. Electro-deposited passivation coatings for patterned media
US8496466B1 (en) 2009-11-06 2013-07-30 WD Media, LLC Press system with interleaved embossing foil holders for nano-imprinting of recording media
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
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
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
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
JP2011248969A (ja) 2010-05-28 2011-12-08 Wd Media (Singapore) Pte. Ltd 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
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
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
EP2718410A4 (fr) * 2011-06-07 2015-03-18 Seagate Technology Llc Compositions de lubrifiant
US8663822B2 (en) * 2011-10-04 2014-03-04 HGST Netherlands B.V. Lubricant layer that provides a stable head-to-disk interface in humid conditions
US8565050B1 (en) 2011-12-20 2013-10-22 WD Media, LLC Heat assisted magnetic recording media having moment keeper layer
KR20130072547A (ko) * 2011-12-22 2013-07-02 삼성전기주식회사 유체 동압 베어링용 윤활유 조성물 및 이를 이용한 ｈｄｄ용 모터
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
JP6283515B2 (ja) 2012-12-28 2018-02-21 デクセリアルズ株式会社 イオン液体、潤滑剤及び磁気記録媒体
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
JP6089740B2 (ja) * 2013-02-01 2017-03-08 富士電機株式会社 磁気記録媒体の記録再生方法
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
US9685184B1 (en) 2014-09-25 2017-06-20 WD Media, LLC NiFeX-based seed layer for magnetic recording media
US9227324B1 (en) 2014-09-25 2016-01-05 WD Media, LLC Mandrel for substrate transport system with notch
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
MY178172A (en) * 2015-07-31 2020-10-06 Fuji Electric Malaysia Sdn Bhd Ionic perfluoropolyether lubricant
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
JP6702778B2 (ja) 2016-04-13 2020-06-03 デクセリアルズ株式会社 イオン液体、潤滑剤及び磁気記録媒体
KR102038369B1 (ko) * 2018-03-29 2019-11-27 (주)루브텍시스템 전자기기용 불소계 그리스 제조방법 및 그 제조방법에 의해 제조되는 전자기기용 불소계 그리스
CN110563988B (zh) * 2019-09-23 2022-04-05 济南大学 一种耐高温聚酰亚胺/聚四氟乙烯抗粘结复合膜及其制备方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1040273B (it) * 1975-07-30 1979-12-20 Montedison Spa Oli perfluoropolieterei selezionati ad altissima purezza ea bassa volatilita
IL79985A0 (en) * 1985-09-13 1986-12-31 Ausimont Spa Purification of oils containing solid matter in suspension
JPH0646441B2 (ja) 1985-09-19 1994-06-15 日本電気株式会社 磁気記録媒体
JP3294760B2 (ja) 1996-04-12 2002-06-24 昭和電工株式会社 磁気記録媒体
JP3223238B2 (ja) 1996-11-07 2001-10-29 昭和電工株式会社 磁気記録媒体
US6099937A (en) * 1998-05-11 2000-08-08 Seagate Technology, Inc. High molecular weight fractioned lubricant for use with thin film magnetic media
JP2000235709A (ja) 1998-12-16 2000-08-29 Mitsubishi Chemicals Corp 情報記録媒体および情報記録装置
JP4392917B2 (ja) 1999-11-30 2010-01-06 株式会社日立グローバルストレージテクノロジーズ 潤滑剤分子量制御法並びに磁気ディスク，磁気ディスク装置
US6555197B1 (en) * 1999-04-30 2003-04-29 Hitachi, Ltd. Lubricant, magnetic disk and magnetic disk apparatus
JP3986040B2 (ja) 1999-12-10 2007-10-03 Ｈｏｙａ株式会社 磁気記録媒体用フッ素系潤滑剤の製造方法
JP2001229524A (ja) 2000-02-15 2001-08-24 Fuji Electric Co Ltd 磁気記録媒体
JP2002025046A (ja) 2000-06-30 2002-01-25 Hoya Corp 磁気記録媒体の製造方法
JP2002294266A (ja) * 2001-03-19 2002-10-09 Matsumura Sekiyu Kenkyusho:Kk ホスファゼン化合物を含有する潤滑剤
JP3888625B2 (ja) 2002-09-06 2007-03-07 Ｈｏｙａ株式会社 磁気ディスクおよびその製造方法
JP3651681B2 (ja) 2003-01-29 2005-05-25 Ｈｏｙａ株式会社 磁気ディスクおよびその製造方法
JP2004319058A (ja) 2003-03-31 2004-11-11 Hoya Corp 磁気ディスクの製造方法及び磁気ディスク

Also Published As

Publication number Publication date
CN1910267A (zh) 2007-02-07
CN1910267B (zh) 2011-01-12
WO2005068589A1 (fr) 2005-07-28
US20070298982A1 (en) 2007-12-27
JPWO2005068589A1 (ja) 2007-12-27
US8012920B2 (en) 2011-09-06
CN101494058B (zh) 2012-02-08
CN101494058A (zh) 2009-07-29

Similar Documents

Publication Publication Date Title
SG152223A1 (en) Lubricant for magnetic disks, method for producing the lubricant used in the magnetic disks, and method for manufacturing the same
US7833641B2 (en) Magnetic disk
CN104810030B (zh) 用于硬盘介质的组合润滑剂
JP5360894B2 (ja) 磁気記録媒体の製造方法
US5562965A (en) Vapor lubrication of fractionated lubricant on thin film discs
JP4041353B2 (ja) 磁気記録媒体の製造方法
JP2006131874A (ja) 潤滑剤および磁気記録媒体
WO2013111223A1 (fr) Support d'enregistrement magnétique
US6083600A (en) Stabilized perfluoropolyether lubricant
JP2009054239A (ja) 記憶媒体、記憶装置、及び記憶媒体の製造方法
US5909337A (en) Magnetic recording device
US6136421A (en) Magneto-resistance recording media comprising multilayered protective overcoats
US6800349B2 (en) Zone bonded lubrication for hard disk recording media
Waltman et al. Low Molecular Weight Z‐Tetraol Boundary Lubricant Films in Hard Disk Drives
US6686019B1 (en) In-situ stabilization of composite lubricant/additive films on thin film media
JP2004152460A (ja) 磁気ディスクおよびその製造方法
JP6040074B2 (ja) 磁気記録媒体の製造方法
JP2014518933A (ja) 潤滑剤組成物
JPS58222441A (ja) 磁気記録媒体
JPH05234066A (ja) 磁気記録媒体及びその製造方法
JP2924052B2 (ja) 磁気記憶体およびその製造方法
JPH06176350A (ja) 磁気記録媒体，磁気ヘッドスライダおよびこれらを備えた磁気記録装置
JPH06274859A (ja) 磁気記録媒体および磁気記録再生装置
JP2004103074A (ja) 磁気ディスクおよびその製造方法
JP2014146400A (ja) 磁気記録媒体の製造方法