JPH0368448B2 - - Google Patents

Info

Publication number
JPH0368448B2
JPH0368448B2 JP57136712A JP13671282A JPH0368448B2 JP H0368448 B2 JPH0368448 B2 JP H0368448B2 JP 57136712 A JP57136712 A JP 57136712A JP 13671282 A JP13671282 A JP 13671282A JP H0368448 B2 JPH0368448 B2 JP H0368448B2
Authority
JP
Japan
Prior art keywords
back coat
magnetic recording
coat layer
particle size
particles
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
JP57136712A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5928240A (ja
Inventor
Shigeru Takamatsu
Masahiro Takizawa
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.)
TDK Corp
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
Application filed by TDK Corp filed Critical TDK Corp
Priority to JP57136712A priority Critical patent/JPS5928240A/ja
Publication of JPS5928240A publication Critical patent/JPS5928240A/ja
Publication of JPH0368448B2 publication Critical patent/JPH0368448B2/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
    • G11B5/7358—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 specially adapted for achieving a specific property, e.g. average roughness [Ra]

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP57136712A 1982-08-05 1982-08-05 磁気記録媒体 Granted JPS5928240A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57136712A JPS5928240A (ja) 1982-08-05 1982-08-05 磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57136712A JPS5928240A (ja) 1982-08-05 1982-08-05 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5928240A JPS5928240A (ja) 1984-02-14
JPH0368448B2 true JPH0368448B2 (enrdf_load_stackoverflow) 1991-10-28

Family

ID=15181717

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57136712A Granted JPS5928240A (ja) 1982-08-05 1982-08-05 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS5928240A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62140238A (ja) * 1985-12-13 1987-06-23 Konishiroku Photo Ind Co Ltd 磁気記録媒体
JP2530747B2 (ja) * 1990-07-06 1996-09-04 東レ株式会社 二軸配向積層ポリエステルフイルム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914125A (ja) * 1982-07-15 1984-01-25 Hitachi Maxell Ltd 磁気記録媒体

Also Published As

Publication number Publication date
JPS5928240A (ja) 1984-02-14

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