JPS5786132A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5786132A
JPS5786132A JP55160153A JP16015380A JPS5786132A JP S5786132 A JPS5786132 A JP S5786132A JP 55160153 A JP55160153 A JP 55160153A JP 16015380 A JP16015380 A JP 16015380A JP S5786132 A JPS5786132 A JP S5786132A
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
needlelike
abrasive
added
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
JP55160153A
Other languages
Japanese (ja)
Other versions
JPH0250527B2 (en
Inventor
Hajime Kawamata
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP55160153A priority Critical patent/JPS5786132A/en
Publication of JPS5786132A publication Critical patent/JPS5786132A/en
Publication of JPH0250527B2 publication Critical patent/JPH0250527B2/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
    • G11B5/708—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 characterised by addition of non-magnetic particles to the layer
    • G11B5/7085—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 characterised by addition of non-magnetic particles to the layer non-magnetic abrasive particles

Abstract

PURPOSE:To obtain a magnetic recording medium which has superior squareness, by using needlelike high-hardness particulate matter as an abrasive to be added to a magnetic layer. CONSTITUTION:As an abrasive, needlelike particulate matter having high hardness, such as inorganic crystalline fiber made of oxide, nitride, carbide or silicide and wisker or glass fiber, or their compound is added to obtain magnetic paint, which is applied onto a base. Then, orientation treatment is performed to obtain a magnetic recording medium.
JP55160153A 1980-11-13 1980-11-13 Magnetic recording medium Granted JPS5786132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55160153A JPS5786132A (en) 1980-11-13 1980-11-13 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55160153A JPS5786132A (en) 1980-11-13 1980-11-13 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS5786132A true JPS5786132A (en) 1982-05-29
JPH0250527B2 JPH0250527B2 (en) 1990-11-02

Family

ID=15709014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55160153A Granted JPS5786132A (en) 1980-11-13 1980-11-13 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5786132A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61220127A (en) * 1985-03-26 1986-09-30 Fuji Photo Film Co Ltd Magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61220127A (en) * 1985-03-26 1986-09-30 Fuji Photo Film Co Ltd Magnetic recording medium

Also Published As

Publication number Publication date
JPH0250527B2 (en) 1990-11-02

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