JPS5930240A - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number
JPS5930240A
JPS5930240A JP57137887A JP13788782A JPS5930240A JP S5930240 A JPS5930240 A JP S5930240A JP 57137887 A JP57137887 A JP 57137887A JP 13788782 A JP13788782 A JP 13788782A JP S5930240 A JPS5930240 A JP S5930240A
Authority
JP
Japan
Prior art keywords
magnetic
powder
tio
recording medium
magnetic recording
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
JP57137887A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6222172B2 (enrdf_load_stackoverflow
Inventor
Yutaka Yoshida
裕 吉田
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.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
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 Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP57137887A priority Critical patent/JPS5930240A/ja
Publication of JPS5930240A publication Critical patent/JPS5930240A/ja
Publication of JPS6222172B2 publication Critical patent/JPS6222172B2/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

  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
JP57137887A 1982-08-10 1982-08-10 磁気記録媒体 Granted JPS5930240A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57137887A JPS5930240A (ja) 1982-08-10 1982-08-10 磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57137887A JPS5930240A (ja) 1982-08-10 1982-08-10 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5930240A true JPS5930240A (ja) 1984-02-17
JPS6222172B2 JPS6222172B2 (enrdf_load_stackoverflow) 1987-05-16

Family

ID=15208996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57137887A Granted JPS5930240A (ja) 1982-08-10 1982-08-10 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS5930240A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0465239A (ja) * 1990-07-06 1992-03-02 Toray Ind Inc 二軸配向積層ポリエステルフイルム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0465239A (ja) * 1990-07-06 1992-03-02 Toray Ind Inc 二軸配向積層ポリエステルフイルム

Also Published As

Publication number Publication date
JPS6222172B2 (enrdf_load_stackoverflow) 1987-05-16

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