HK1003210A1 - Magnetic recording medium and method for producingthe same - Google Patents

Magnetic recording medium and method for producingthe same

Info

Publication number
HK1003210A1
HK1003210A1 HK98102326A HK98102326A HK1003210A1 HK 1003210 A1 HK1003210 A1 HK 1003210A1 HK 98102326 A HK98102326 A HK 98102326A HK 98102326 A HK98102326 A HK 98102326A HK 1003210 A1 HK1003210 A1 HK 1003210A1
Authority
HK
Hong Kong
Prior art keywords
recording medium
magnetic recording
producingthe
same
producingthe same
Prior art date
Application number
HK98102326A
Other languages
English (en)
Inventor
Kunihiro Ueda
Kiyoshi Yazu
Koji Kobayashi
Hiromichi Kanazawa
Masatoshi Nakayama
Original Assignee
Tdk 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 JP5299683A external-priority patent/JPH07153065A/ja
Priority claimed from JP5299682A external-priority patent/JPH07153064A/ja
Application filed by Tdk Corp filed Critical Tdk Corp
Publication of HK1003210A1 publication Critical patent/HK1003210A1/xx

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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/726—Two or more protective coatings
    • G11B5/7262—Inorganic protective coating
    • G11B5/7264—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
    • G11B5/7266—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon comprising a lubricant over the inorganic carbon coating
    • 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
    • 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
    • G11B5/73—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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8408—Processes or apparatus specially adapted for manufacturing record carriers protecting the magnetic layer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
HK98102326A 1993-11-30 1998-03-19 Magnetic recording medium and method for producingthe same HK1003210A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5299683A JPH07153065A (ja) 1993-11-30 1993-11-30 磁気記録媒体及びその製造方法
JP5299682A JPH07153064A (ja) 1993-11-30 1993-11-30 磁気記録媒体及びその製造方法

Publications (1)

Publication Number Publication Date
HK1003210A1 true HK1003210A1 (en) 1998-10-16

Family

ID=26562035

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98102326A HK1003210A1 (en) 1993-11-30 1998-03-19 Magnetic recording medium and method for producingthe same

Country Status (4)

Country Link
EP (1) EP0655733B1 (fr)
KR (1) KR100244059B1 (fr)
DE (1) DE69417157T2 (fr)
HK (1) HK1003210A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0883423A (ja) * 1994-07-01 1996-03-26 Hitachi Metals Ltd 磁気ディスク
US20010044028A1 (en) * 1999-12-30 2001-11-22 Anderson Jerrel Charles Diamond-like carbon coated pet film and pet film glass laminate glazing structures for added hardness and abrasion resistance
US9245565B2 (en) 2013-06-14 2016-01-26 HGST Netherlands B.V. Magnetic recording medium lubricant mixture and systems thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60229233A (ja) * 1984-04-27 1985-11-14 Sumitomo Special Metals Co Ltd 磁気ディスク用基板の製造方法
JPS63275040A (ja) * 1987-05-07 1988-11-11 Matsushita Electric Ind Co Ltd 磁気記録媒体の製造方法
JPH02110827A (ja) * 1988-10-20 1990-04-24 Matsushita Electric Ind Co Ltd 磁気記録媒体の製造方法
JPH06223356A (ja) * 1992-12-03 1994-08-12 Tdk Corp 磁気記録媒体

Also Published As

Publication number Publication date
EP0655733A1 (fr) 1995-05-31
DE69417157D1 (de) 1999-04-22
DE69417157T2 (de) 1999-12-23
EP0655733B1 (fr) 1999-03-17
KR100244059B1 (ko) 2000-02-01
KR950015218A (ko) 1995-06-16

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20031119

PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)