JPS5914127A - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number
JPS5914127A
JPS5914127A JP57124155A JP12415582A JPS5914127A JP S5914127 A JPS5914127 A JP S5914127A JP 57124155 A JP57124155 A JP 57124155A JP 12415582 A JP12415582 A JP 12415582A JP S5914127 A JPS5914127 A JP S5914127A
Authority
JP
Japan
Prior art keywords
carbon black
coat layer
back coat
particle size
parts
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
JP57124155A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0249490B2 (en:Method
Inventor
Takeshi Matsuura
松浦　武志
Akira Morioka
章 森岡
Yoshiyuki Takahira
高平　義之
Seiji Wataya
渡谷　誠治
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 JP57124155A priority Critical patent/JPS5914127A/ja
Publication of JPS5914127A publication Critical patent/JPS5914127A/ja
Publication of JPH0249490B2 publication Critical patent/JPH0249490B2/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

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP57124155A 1982-07-15 1982-07-15 磁気記録媒体 Granted JPS5914127A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57124155A JPS5914127A (ja) 1982-07-15 1982-07-15 磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57124155A JPS5914127A (ja) 1982-07-15 1982-07-15 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5914127A true JPS5914127A (ja) 1984-01-25
JPH0249490B2 JPH0249490B2 (en:Method) 1990-10-30

Family

ID=14878298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57124155A Granted JPS5914127A (ja) 1982-07-15 1982-07-15 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS5914127A (en:Method)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956223A (ja) * 1982-09-27 1984-03-31 Fuji Photo Film Co Ltd 磁気記録媒体
JPS59223937A (ja) * 1983-06-03 1984-12-15 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6038725A (ja) * 1983-08-09 1985-02-28 Fuji Photo Film Co Ltd 磁気記録媒体
JPS60107729A (ja) * 1983-11-16 1985-06-13 Fuji Photo Film Co Ltd 磁気記録媒体
JPS61153822A (ja) * 1984-12-27 1986-07-12 Tdk Corp 磁気記録媒体
JPS61117648U (en:Method) * 1984-12-28 1986-07-24
JPS63144417A (ja) * 1986-12-08 1988-06-16 Matsushita Electric Ind Co Ltd 磁気記録媒体
US5616398A (en) * 1993-05-14 1997-04-01 Tdk Corporation Magnetic recording medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147308A (en:Method) * 1974-05-15 1975-11-26
JPS5347806A (en) * 1977-06-29 1978-04-28 Hitachi Maxell Magnetic recording material
JPS53134406A (en) * 1977-04-28 1978-11-24 Hitachi Maxell Magnetic recording medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147308A (en:Method) * 1974-05-15 1975-11-26
JPS53134406A (en) * 1977-04-28 1978-11-24 Hitachi Maxell Magnetic recording medium
JPS5347806A (en) * 1977-06-29 1978-04-28 Hitachi Maxell Magnetic recording material

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956223A (ja) * 1982-09-27 1984-03-31 Fuji Photo Film Co Ltd 磁気記録媒体
JPS59223937A (ja) * 1983-06-03 1984-12-15 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6038725A (ja) * 1983-08-09 1985-02-28 Fuji Photo Film Co Ltd 磁気記録媒体
JPS60107729A (ja) * 1983-11-16 1985-06-13 Fuji Photo Film Co Ltd 磁気記録媒体
JPS61153822A (ja) * 1984-12-27 1986-07-12 Tdk Corp 磁気記録媒体
JPS61117648U (en:Method) * 1984-12-28 1986-07-24
JPS63144417A (ja) * 1986-12-08 1988-06-16 Matsushita Electric Ind Co Ltd 磁気記録媒体
US5616398A (en) * 1993-05-14 1997-04-01 Tdk Corporation Magnetic recording medium

Also Published As

Publication number Publication date
JPH0249490B2 (en:Method) 1990-10-30

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