JPH0312367B2 - - Google Patents

Info

Publication number
JPH0312367B2
JPH0312367B2 JP56139029A JP13902981A JPH0312367B2 JP H0312367 B2 JPH0312367 B2 JP H0312367B2 JP 56139029 A JP56139029 A JP 56139029A JP 13902981 A JP13902981 A JP 13902981A JP H0312367 B2 JPH0312367 B2 JP H0312367B2
Authority
JP
Japan
Prior art keywords
film
magnetic
carbon black
fluorine
resin
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
JP56139029A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5841420A (ja
Inventor
Tsunemi Ooiwa
Atsutaka Yamaguchi
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 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 JP56139029A priority Critical patent/JPS5841420A/ja
Publication of JPS5841420A publication Critical patent/JPS5841420A/ja
Publication of JPH0312367B2 publication Critical patent/JPH0312367B2/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
    • G11B5/73—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

  • Lubricants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Magnetic Record Carriers (AREA)
JP56139029A 1981-09-03 1981-09-03 磁気記録媒体 Granted JPS5841420A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56139029A JPS5841420A (ja) 1981-09-03 1981-09-03 磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56139029A JPS5841420A (ja) 1981-09-03 1981-09-03 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5841420A JPS5841420A (ja) 1983-03-10
JPH0312367B2 true JPH0312367B2 (enrdf_load_stackoverflow) 1991-02-20

Family

ID=15235797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56139029A Granted JPS5841420A (ja) 1981-09-03 1981-09-03 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS5841420A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59172157A (ja) * 1983-03-20 1984-09-28 Hitachi Maxell Ltd 磁気記録媒体
JPS6080124A (ja) * 1983-10-07 1985-05-08 Fuji Photo Film Co Ltd 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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5729769B2 (enrdf_load_stackoverflow) * 1974-02-15 1982-06-24
JPS56162977A (en) * 1980-05-15 1981-12-15 Toyo Electric Mfg Co Ltd Inverter device

Also Published As

Publication number Publication date
JPS5841420A (ja) 1983-03-10

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