JPS57176532A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57176532A
JPS57176532A JP56061870A JP6187081A JPS57176532A JP S57176532 A JPS57176532 A JP S57176532A JP 56061870 A JP56061870 A JP 56061870A JP 6187081 A JP6187081 A JP 6187081A JP S57176532 A JPS57176532 A JP S57176532A
Authority
JP
Japan
Prior art keywords
layer
recording medium
magnetic
magnetic recording
support
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
JP56061870A
Other languages
Japanese (ja)
Inventor
Hirotsugu Takagi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP56061870A priority Critical patent/JPS57176532A/en
Publication of JPS57176532A publication Critical patent/JPS57176532A/en
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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates

Landscapes

  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To decrease the tape distortion of a magnetic recording medium and to achieve excellent recording and reproduction, by providing an elastic layer having larger elastic constant than that of a support on the surface of a magnetic layer or at the middle of a nonmagnetic support and the magnetic layer. CONSTITUTION:An elastic layer 13 having the elastic constant preferably higher >=10 times than that of the support 11 is provided on the nonmagnetic substance support 11 such as polyester film and polyimide film. Next, a magnetic layer 12 including magnetic particles such as gamma-Fe2O3 and CrO2 is formed on the layer 13 to achieve the objective magnetic recording medium. Thus, the elongation of tape when an external force is applied to the magnetic recording medium can be reduced. Further, the position of the layer 13 can be put on the surface of the magnetic layer 12 or between the layers 12 and 11.
JP56061870A 1981-04-23 1981-04-23 Magnetic recording medium Pending JPS57176532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56061870A JPS57176532A (en) 1981-04-23 1981-04-23 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56061870A JPS57176532A (en) 1981-04-23 1981-04-23 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57176532A true JPS57176532A (en) 1982-10-29

Family

ID=13183582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56061870A Pending JPS57176532A (en) 1981-04-23 1981-04-23 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57176532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996030900A1 (en) * 1995-03-27 1996-10-03 Emtec Magnetics Gmbh Magnetic recording media

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996030900A1 (en) * 1995-03-27 1996-10-03 Emtec Magnetics Gmbh Magnetic recording media
EA000248B1 (en) * 1995-03-27 1999-02-25 Эмтек Магнетикс Гмбх Magnetic recording media

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