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FR2554625B1 - Element d'enregistrement magnetique et procede de fabrication - Google Patents

Element d'enregistrement magnetique et procede de fabrication

Info

Publication number
FR2554625B1
FR2554625B1 FR8416969A FR8416969A FR2554625B1 FR 2554625 B1 FR2554625 B1 FR 2554625B1 FR 8416969 A FR8416969 A FR 8416969A FR 8416969 A FR8416969 A FR 8416969A FR 2554625 B1 FR2554625 B1 FR 2554625B1
Authority
FR
France
Prior art keywords
manufacturing
magnetic recording
recording element
magnetic
recording
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.)
Expired - Lifetime
Application number
FR8416969A
Other languages
English (en)
Other versions
FR2554625A1 (fr
Inventor
Mitsutoshi Hoshino
Akira Terada
Shungo Sugawara
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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
Priority claimed from JP20806183A external-priority patent/JPS60101715A/ja
Priority claimed from JP5745384A external-priority patent/JPS60202533A/ja
Priority claimed from JP9634084A external-priority patent/JPS60242518A/ja
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of FR2554625A1 publication Critical patent/FR2554625A1/fr
Application granted granted Critical
Publication of FR2554625B1 publication Critical patent/FR2554625B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G11B5/7368—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
    • G11B5/72—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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/726—Two or more protective coatings
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
    • Y10T428/31544—Addition polymer is perhalogenated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31652—Of asbestos
    • Y10T428/31663—As siloxane, silicone or silane

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Lubricants (AREA)
FR8416969A 1983-11-05 1984-11-05 Element d'enregistrement magnetique et procede de fabrication Expired - Lifetime FR2554625B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP20806183A JPS60101715A (ja) 1983-11-05 1983-11-05 磁気デイスク媒体
JP5745384A JPS60202533A (ja) 1984-03-27 1984-03-27 磁気デイスク媒体
JP9634084A JPS60242518A (ja) 1984-05-16 1984-05-16 磁気デイスク媒体

Publications (2)

Publication Number Publication Date
FR2554625A1 FR2554625A1 (fr) 1985-05-10
FR2554625B1 true FR2554625B1 (fr) 1990-07-20

Family

ID=27296262

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8416969A Expired - Lifetime FR2554625B1 (fr) 1983-11-05 1984-11-05 Element d'enregistrement magnetique et procede de fabrication

Country Status (3)

Country Link
US (1) US4529659A (fr)
DE (1) DE3440361C2 (fr)
FR (1) FR2554625B1 (fr)

Families Citing this family (58)

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DE3374152D1 (en) * 1983-05-02 1987-11-26 Ibm Deutschland Device consisting of a magnetic disc with a lubricant and a magnetic head, and process for manufacturing the device
US4696845A (en) * 1984-08-27 1987-09-29 Nec Corporation Magnetic storage medium with lubricating coating
JPS6168725A (ja) * 1984-09-10 1986-04-09 Shin Etsu Chem Co Ltd 磁気記録媒体およびその製造方法
US4761334A (en) * 1984-09-21 1988-08-02 Kabushiki Kaisha Toshiba Magnetic recording medium
US4647507A (en) * 1984-10-31 1987-03-03 Matsushita Electric Industrial Co., Ltd. Magnetic recording material
DE3473958D1 (en) * 1984-10-31 1988-10-13 Ibm Deutschland Magnetic disc and process for producing it
JPH0668833B2 (ja) * 1984-11-07 1994-08-31 株式会社日立製作所 磁気記録媒体
US4701374A (en) * 1984-11-30 1987-10-20 Kabushiki Kaisha Toshiba Magnetic recording medium
JPS61253634A (ja) * 1985-05-01 1986-11-11 Hitachi Maxell Ltd 磁気記録媒体
US4797303A (en) * 1985-09-04 1989-01-10 Unisys Corp. Surface lubricants for disc record
KR900004754B1 (ko) * 1985-09-17 1990-07-05 가부시기 가이샤 히다찌세이사구쇼 자기 기록 매체
JP2633230B2 (ja) * 1985-09-26 1997-07-23 日本電気株式会社 磁気記憶体
IT1191634B (it) * 1985-10-30 1988-03-23 Ausimont Spa Procedimento per la protezione e la lubrificazione di superfici sottoposte ad attrito ed usura
US5223342A (en) * 1986-02-04 1993-06-29 Hitachi, Ltd. Magnetic recording medium having a lubricating layer comprising a binder and specified perfluoro polyoxyalkyl lubricant
US5071715A (en) * 1986-02-04 1991-12-10 Hitachi, Ltd. Magnetic recording medium with a lubricant layer containing a perfluoro polyoxyalkyl compound
JPH0673178B2 (ja) * 1986-02-04 1994-09-14 株式会社日立製作所 磁気記録媒体
JPH0630140B2 (ja) * 1986-02-05 1994-04-20 日本ビクター株式会社 磁気記録媒体
DE3788275T2 (de) * 1986-08-28 1994-05-19 Unisys Corp Oberflächenschmiermittel für Speicheroberfläche und Verfahren zur Verminderung ihrer Abnutzung.
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JPH0690787B2 (ja) * 1987-06-16 1994-11-14 株式会社日立製作所 磁気記録媒体
US5154845A (en) * 1987-08-10 1992-10-13 Pcr Group, Inc. Fluorine containing lubricating composition for relatively moving metal surfaces
US4849291A (en) * 1987-12-02 1989-07-18 Eastman Kodak Company Magnetic recording element
US5118577A (en) * 1988-03-10 1992-06-02 Magnetic Peripherals Inc. Plasma treatment for ceramic materials
US5039555A (en) * 1988-10-12 1991-08-13 Matsushita Electric Industrial Co., Ltd. Method of preparing lubricant for recording media
JP2796852B2 (ja) * 1988-10-31 1998-09-10 インターナショナル・ビジネス・マシーンズ・コーポレーション 磁気記憶装置及び方法
US5204143A (en) * 1989-04-03 1993-04-20 Fuji Photo Film Co., Ltd. Process for treating metal surface
EP0409411A3 (en) * 1989-07-21 1991-07-24 Minnesota Mining And Manufacturing Company Magnetic recording medium with cured surface coating
GB8916739D0 (en) * 1989-07-21 1989-09-06 Minnesota Mining & Mfg Protective layer for magnetic recording media
US5113302A (en) * 1989-11-20 1992-05-12 Nippon Sheet Glass Co., Ltd. Magnetic recording medium having a coupling agent disposed between a protective layer and a lubricating layer
US5162073A (en) * 1990-02-15 1992-11-10 Applied Magnetics Corporation Textured air bearing surface
US5079657A (en) * 1990-02-15 1992-01-07 Applied Magnetics Corporation Textured air bearing surface
US5316844A (en) * 1990-04-16 1994-05-31 Hoya Electronics Corporation Magnetic recording medium comprising an aluminum alloy substrate, now magnetic underlayers, magnetic layer, protective layer, particulate containing protective layer and lubricant layer
JP2912694B2 (ja) * 1990-09-07 1999-06-28 松下電器産業株式会社 記録再生装置
JPH04205814A (ja) * 1990-11-30 1992-07-28 Nec Corp 磁気記憶体
JP2809528B2 (ja) * 1991-05-31 1998-10-08 富士写真フイルム株式会社 可撓性磁気ディスクの製造方法
JP2778333B2 (ja) * 1992-01-31 1998-07-23 日本電気株式会社 磁気記憶装置
US5654850A (en) * 1993-05-18 1997-08-05 Applied Magnetics Corp. Carbon overcoat with electrically conductive adhesive layer for magnetic head sliders
US5336550A (en) * 1993-05-18 1994-08-09 Applied Magnetics Corporation Carbon overcoat for magnetic head sliders
US5452166A (en) * 1993-10-01 1995-09-19 Applied Magnetics Corporation Thin film magnetic recording head for minimizing undershoots and a method for manufacturing the same
US5487931A (en) * 1993-12-02 1996-01-30 Annacone; William R. Rigid disc substrate comprising a central hard core substrate with a hard, thermally and mechanically matched overlying smoothing layer and method for making the same
US5539592A (en) * 1994-10-05 1996-07-23 International Business Machines Corporation System and method for monitoring friction between head and disk to predict head disk interaction failure in direct access storage devices
KR960019113A (ko) * 1994-11-07 1996-06-17 가나이 쯔도무 자기 디스크 및 자기 디스크 장치
US5562965A (en) * 1995-06-07 1996-10-08 Seagate Technologies, Inc. Vapor lubrication of fractionated lubricant on thin film discs
JP2001516115A (ja) * 1997-08-18 2001-09-25 シーゲイト テクノロジー インコーポレイテッド ロード／アンロードに実用するための炭素オーバーコート層を備えるディスクとドライブのシステム、及び方法
US6673429B1 (en) 2000-07-25 2004-01-06 Seagate Technology Llc Magnetic recording media with a multiple-layer lubricant
JP2002092859A (ja) * 2000-09-19 2002-03-29 Toshiba Corp 磁気記録媒体及びこれを用いた磁気記録再生装置
JP2003187418A (ja) * 2001-12-13 2003-07-04 Fuji Electric Co Ltd 磁気記録媒体およびその製造方法、並びに該磁気記録媒体を使用する磁気記録装置
US7045170B1 (en) * 2002-04-03 2006-05-16 Sandia Corporation Anti-stiction coating for microelectromechanical devices
US8182868B2 (en) * 2003-01-09 2012-05-22 Maxtor Corporation Encapsulation of particulate contamination
WO2005031783A1 (fr) * 2003-09-26 2005-04-07 Matsushita Electric Industrial Co., Ltd. Ecran a plasma
EP1667191B1 (fr) * 2003-09-26 2007-11-28 Matsushita Electric Industrial Co., Ltd. Ecran a plasma
US7060377B2 (en) * 2003-10-20 2006-06-13 Seagate Technology Lubricant film containing additives for advanced tribological performance of magnetic storage medium
US7264669B1 (en) * 2005-02-03 2007-09-04 Tribofilm Research, Inc. Scratch resistant gradient coating and coated articles
US7729082B2 (en) * 2006-07-25 2010-06-01 Hitachi Global Storage Technologies Netherlands B.V. Application of PFPES for HDD screw lubricant
US9245568B2 (en) * 2008-03-30 2016-01-26 Wd Media (Singapore) Pte. Ltd. Magnetic disk and method of manufacturing the same
JP2013074032A (ja) * 2011-09-27 2013-04-22 Sanyo Electric Co Ltd 固体電解コンデンサの製造方法
DE102012203274A1 (de) * 2012-03-01 2013-09-05 Wacker Chemie Ag Organosiliciumverbindungen und deren Verwendung
KR20200021200A (ko) * 2018-08-20 2020-02-28 삼성전자주식회사 표면 코팅재, 필름, 적층체 및 표시 장치

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US3810874A (en) * 1969-03-10 1974-05-14 Minnesota Mining & Mfg Polymers prepared from poly(perfluoro-alkylene oxide) compounds
US4085137A (en) * 1969-03-10 1978-04-18 Minnesota Mining And Manufacturing Company Poly(perfluoroalkylene oxide) derivatives
JPS5255603A (en) * 1975-10-31 1977-05-07 Nec Corp Magnetic memory element and production of same
US4152487A (en) * 1976-12-17 1979-05-01 Nippon Electric Co., Ltd. Magnetic record member
US4120995A (en) * 1977-10-18 1978-10-17 International Business Machines Corporation Process for bonding a durable low surface energy coating
DE2923682C2 (de) * 1978-06-13 1983-11-03 Nippon Electric Co., Ltd., Tokyo Magnetischer Aufzeichnungsträger
US4267238A (en) * 1979-12-18 1981-05-12 Minnesota Mining And Manufacturing Company Flexible magnetic recording media lubricated with fluorinated telechelic polyether polymer
US4268556A (en) * 1979-01-08 1981-05-19 Minnesota Mining And Manufacturing Company Rigid magnetic recording disks lubricated with fluorinated telechelic polyether
DE3117931C2 (de) * 1980-05-06 1985-07-25 Nippon Electric Co., Ltd., Tokio/Tokyo Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung
JPS5715231A (en) * 1980-07-03 1982-01-26 Sony Corp Magnetic recording medium
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JPS59172159A (ja) * 1983-03-18 1984-09-28 Hitachi Maxell Ltd 磁気記録媒体

Also Published As

Publication number Publication date
FR2554625A1 (fr) 1985-05-10
DE3440361A1 (de) 1985-05-23
US4529659A (en) 1985-07-16
DE3440361C2 (de) 1987-02-05

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