JPS57154643A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57154643A
JPS57154643A JP56041314A JP4131481A JPS57154643A JP S57154643 A JPS57154643 A JP S57154643A JP 56041314 A JP56041314 A JP 56041314A JP 4131481 A JP4131481 A JP 4131481A JP S57154643 A JPS57154643 A JP S57154643A
Authority
JP
Japan
Prior art keywords
recording medium
resin
fluororesin
lubricating
fine powder
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.)
Pending
Application number
JP56041314A
Other languages
English (en)
Inventor
Akito Sakamoto
Kunio Mizushima
Taku Yamase
Masaya Funabashi
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.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP56041314A priority Critical patent/JPS57154643A/ja
Publication of JPS57154643A publication Critical patent/JPS57154643A/ja
Pending 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
    • G11B5/735—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 characterised by the back layer
    • G11B5/7356—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 characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2

Landscapes

  • Magnetic Record Carriers (AREA)
  • Lubricants (AREA)
JP56041314A 1981-03-20 1981-03-20 Magnetic recording medium Pending JPS57154643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56041314A JPS57154643A (en) 1981-03-20 1981-03-20 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56041314A JPS57154643A (en) 1981-03-20 1981-03-20 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57154643A true JPS57154643A (en) 1982-09-24

Family

ID=12605041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56041314A Pending JPS57154643A (en) 1981-03-20 1981-03-20 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57154643A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60111334A (ja) * 1983-11-18 1985-06-17 Matsushita Electric Ind Co Ltd 磁気記録媒体

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60111334A (ja) * 1983-11-18 1985-06-17 Matsushita Electric Ind Co Ltd 磁気記録媒体

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