JPS56156931A - Magnetic storage medium - Google Patents

Magnetic storage medium

Info

Publication number
JPS56156931A
JPS56156931A JP5976280A JP5976280A JPS56156931A JP S56156931 A JPS56156931 A JP S56156931A JP 5976280 A JP5976280 A JP 5976280A JP 5976280 A JP5976280 A JP 5976280A JP S56156931 A JPS56156931 A JP S56156931A
Authority
JP
Japan
Prior art keywords
oxide
layer
film
thin film
metallic
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.)
Granted
Application number
JP5976280A
Other languages
Japanese (ja)
Other versions
JPS639297B2 (en
Inventor
Masahiro Yanagisawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5976280A priority Critical patent/JPS56156931A/en
Priority to DE3117931A priority patent/DE3117931C2/en
Publication of JPS56156931A publication Critical patent/JPS56156931A/en
Priority to US06/347,389 priority patent/US4390562A/en
Publication of JPS639297B2 publication Critical patent/JPS639297B2/ja
Granted 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
    • G11B5/72—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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To form a lubricating thin film excellent in the environmental resistance, by coating the surface of a magnetic medium such as a magnetic disk, etc. with a thin film of graphite fluoride and thus avoiding the wear or breakdown due to a mutual attachment or contact between a magnetic head and the recording medium. CONSTITUTION:The Ni-phosphorus alloy is plated on a substrate 1 of Al alloy, etc. to obtain an intermediate layer 2. The layer 2 is finished to a mirror surface. Then a metallic magnetic medium 3 is formed on the layer 2 with the Co-Ni-phosphorus alloy, etc. A layer of a semimetallic oxide 4 or metallic oxide 5 such as the oxides of Si, Ge, Co, Cr, Ni, Zr, Ga, Cu, Ag, etc. is formed as a substrate on the medium 3. Otherwise a metallic film 9, which either contains P or does not contain P but contains Co, Ni, Fe, Cr, Cu, Ti, W, Zr or Rh or a combination of these elements, is formed. Then the graphite fluoride powder of about 3mu grain size is spread on the oxide 4 (oxide 5, film 9), and the said powder is also spread on a polishing cloth. The oxide and the polishing cloth are rubbed together with an application of pressure to form a graphite fluoride thin film 6 in several Angstrom to several hundreds Angstrom thickness. Thus a wear-resistant film having an excellent adhesive property is obtained.
JP5976280A 1980-05-06 1980-05-06 Magnetic storage medium Granted JPS56156931A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP5976280A JPS56156931A (en) 1980-05-06 1980-05-06 Magnetic storage medium
DE3117931A DE3117931C2 (en) 1980-05-06 1981-05-06 Magnetic recording medium and process for its manufacture
US06/347,389 US4390562A (en) 1980-05-06 1982-02-09 Process of manufacturing a magnetic record member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5976280A JPS56156931A (en) 1980-05-06 1980-05-06 Magnetic storage medium

Publications (2)

Publication Number Publication Date
JPS56156931A true JPS56156931A (en) 1981-12-03
JPS639297B2 JPS639297B2 (en) 1988-02-26

Family

ID=13122598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5976280A Granted JPS56156931A (en) 1980-05-06 1980-05-06 Magnetic storage medium

Country Status (1)

Country Link
JP (1) JPS56156931A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857631A (en) * 1981-09-30 1983-04-05 Sekisui Chem Co Ltd Production of magnetic recording medium
JPS60209929A (en) * 1984-04-03 1985-10-22 Nec Corp Magnetic storage body and its production
JPS6173229A (en) * 1984-09-18 1986-04-15 Matsushita Electric Ind Co Ltd Thin metallic film type magnetic recording medium
US4724188A (en) * 1984-06-07 1988-02-09 C. Uyemura and Co. Magnetic recording medium
JPH01139297A (en) * 1987-11-26 1989-05-31 Mitsubishi Heavy Ind Ltd Ink stain prevention on roller surface of printing machine
US4839244A (en) * 1987-04-24 1989-06-13 Nec Corporation Magnetic recording medium with protective layer using graphite fluoride and method of producing same
SG118264A1 (en) * 2004-06-29 2006-01-27 Sony Corp A magnetic material and a MEMS device using the magnetic material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857631A (en) * 1981-09-30 1983-04-05 Sekisui Chem Co Ltd Production of magnetic recording medium
JPS60209929A (en) * 1984-04-03 1985-10-22 Nec Corp Magnetic storage body and its production
US4724188A (en) * 1984-06-07 1988-02-09 C. Uyemura and Co. Magnetic recording medium
JPS6173229A (en) * 1984-09-18 1986-04-15 Matsushita Electric Ind Co Ltd Thin metallic film type magnetic recording medium
US4839244A (en) * 1987-04-24 1989-06-13 Nec Corporation Magnetic recording medium with protective layer using graphite fluoride and method of producing same
JPH01139297A (en) * 1987-11-26 1989-05-31 Mitsubishi Heavy Ind Ltd Ink stain prevention on roller surface of printing machine
SG118264A1 (en) * 2004-06-29 2006-01-27 Sony Corp A magnetic material and a MEMS device using the magnetic material

Also Published As

Publication number Publication date
JPS639297B2 (en) 1988-02-26

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