JPS56143522A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS56143522A
JPS56143522A JP4540880A JP4540880A JPS56143522A JP S56143522 A JPS56143522 A JP S56143522A JP 4540880 A JP4540880 A JP 4540880A JP 4540880 A JP4540880 A JP 4540880A JP S56143522 A JPS56143522 A JP S56143522A
Authority
JP
Japan
Prior art keywords
magnetic layer
recording medium
magnetic recording
gap size
magnetic
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
JP4540880A
Other languages
Japanese (ja)
Other versions
JPH0330206B2 (en
Inventor
Eiichi Tadokoro
Masaaki Fujiyama
Goro Akashi
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP4540880A priority Critical patent/JPS56143522A/en
Priority to DE19813113859 priority patent/DE3113859A1/en
Priority to US06/251,826 priority patent/US4450199A/en
Publication of JPS56143522A publication Critical patent/JPS56143522A/en
Publication of JPH0330206B2 publication Critical patent/JPH0330206B2/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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer

Abstract

PURPOSE:To improve S/N, head wear resistance and head cleaning effect by specifying the surface roughness of the magnetic layer of a coating type magnetic recording medium and the gap size in the magnetic layer. CONSTITUTION:A magnetic layer of <=0.021mu in the mean center-line roughness of the magnetic layer surface and >=500A in the mean gap size in the magnetic layer is provided on a nonmagnetic base to obtain a magnetic recording medium.
JP4540880A 1980-04-07 1980-04-07 Magnetic recording medium Granted JPS56143522A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4540880A JPS56143522A (en) 1980-04-07 1980-04-07 Magnetic recording medium
DE19813113859 DE3113859A1 (en) 1980-04-07 1981-04-06 MAGNETIC RECORDING MATERIAL
US06/251,826 US4450199A (en) 1980-04-07 1981-04-07 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4540880A JPS56143522A (en) 1980-04-07 1980-04-07 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS56143522A true JPS56143522A (en) 1981-11-09
JPH0330206B2 JPH0330206B2 (en) 1991-04-26

Family

ID=12718420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4540880A Granted JPS56143522A (en) 1980-04-07 1980-04-07 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS56143522A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5975432A (en) * 1982-10-22 1984-04-28 Fuji Photo Film Co Ltd Magnetic recording body
JPS5990234A (en) * 1982-11-15 1984-05-24 Hitachi Ltd Magnetic disk
JPS59142742A (en) * 1983-02-04 1984-08-16 Fuji Photo Film Co Ltd Magnetic recording medium
JPS59201218A (en) * 1983-04-28 1984-11-14 Fuji Photo Film Co Ltd Magnetic recording medium
JPS59203224A (en) * 1983-05-02 1984-11-17 Fuji Photo Film Co Ltd Magnetic recording medium
JPS60167115A (en) * 1984-02-09 1985-08-30 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS6134724A (en) * 1984-07-25 1986-02-19 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS6174137A (en) * 1984-09-19 1986-04-16 Hitachi Maxell Ltd Magnetic disk

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5975432A (en) * 1982-10-22 1984-04-28 Fuji Photo Film Co Ltd Magnetic recording body
JPH0479059B2 (en) * 1982-10-22 1992-12-14 Fuji Photo Film Co Ltd
JPS5990234A (en) * 1982-11-15 1984-05-24 Hitachi Ltd Magnetic disk
JPH056736B2 (en) * 1982-11-15 1993-01-27 Hitachi Ltd
JPS59142742A (en) * 1983-02-04 1984-08-16 Fuji Photo Film Co Ltd Magnetic recording medium
JPS59201218A (en) * 1983-04-28 1984-11-14 Fuji Photo Film Co Ltd Magnetic recording medium
JPH0479063B2 (en) * 1983-04-28 1992-12-14 Fuji Photo Film Co Ltd
JPS59203224A (en) * 1983-05-02 1984-11-17 Fuji Photo Film Co Ltd Magnetic recording medium
JPH0479046B2 (en) * 1983-05-02 1992-12-14 Fuji Photo Film Co Ltd
JPS60167115A (en) * 1984-02-09 1985-08-30 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS6134724A (en) * 1984-07-25 1986-02-19 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS6174137A (en) * 1984-09-19 1986-04-16 Hitachi Maxell Ltd Magnetic disk

Also Published As

Publication number Publication date
JPH0330206B2 (en) 1991-04-26

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