JPS57154617A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57154617A
JPS57154617A JP56040201A JP4020181A JPS57154617A JP S57154617 A JPS57154617 A JP S57154617A JP 56040201 A JP56040201 A JP 56040201A JP 4020181 A JP4020181 A JP 4020181A JP S57154617 A JPS57154617 A JP S57154617A
Authority
JP
Japan
Prior art keywords
iron oxide
magnetic
recording medium
magnetic recording
powder
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
JP56040201A
Other languages
Japanese (ja)
Inventor
Naoyoshi Yoshinari
Kunio Kobayashi
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP56040201A priority Critical patent/JPS57154617A/en
Publication of JPS57154617A publication Critical patent/JPS57154617A/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
    • G11B5/68—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
    • G11B5/706—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 the composition of the magnetic material

Abstract

PURPOSE:To improve the durability and the wear resistance of a magnetic head, by mixing and using an iron oxide magnetic powder and a small quantity of an iron oxide magnetic powder with cobalt adhered to. CONSTITUTION:Powder, where 100pts.wt. iron oxide magnetic powder such as gamma- Fe2O3 and 3-10pts.wt. iron oxide with cobalt adhered to such as gamma-Fe2O3 with Co adhered to are mixed, as magnetic powder forming a magnetic layer is applied onto a base material together with a binder to form the magnetic layer, thus obtaining a magnetic recording medium.
JP56040201A 1981-03-19 1981-03-19 Magnetic recording medium Pending JPS57154617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56040201A JPS57154617A (en) 1981-03-19 1981-03-19 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56040201A JPS57154617A (en) 1981-03-19 1981-03-19 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57154617A true JPS57154617A (en) 1982-09-24

Family

ID=12574164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56040201A Pending JPS57154617A (en) 1981-03-19 1981-03-19 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57154617A (en)

Similar Documents

Publication Publication Date Title
JPS54143608A (en) Magnetic recording medium
JPS57150129A (en) Magnetic recording medium
JPS57130233A (en) Magnetic recording medium
JPS576439A (en) Magnetic recording medium
JPS5613525A (en) Magnetic recording medium
JPS5377603A (en) Magnetic recording medium
JPS578925A (en) Magnetic recording medium
JPS57154617A (en) Magnetic recording medium
DE3371724D1 (en) Magnetic iron carbon nitride based material, and preparation and application as magnetic recording material
KR850005667A (en) Method of manufacturing magnetic recording medium
JPS5528507A (en) Magnetic recording tape
JPS5584041A (en) Magnetic recording medium
JPS573226A (en) Magnetic recording medium
JPS5794928A (en) Magnetic recording medium
JPS55129433A (en) Abrasion resistant rubber lining material
JPS5755533A (en) Magnetic recording medium
JPS5383707A (en) Magnetic recording medium composition and preparation thereof
JPS57158026A (en) Magnetic recording medium
JPS55127003A (en) Manufacturing of magnetic powder with high coercive force
JPS57210433A (en) Magnetic recording medium
JPS57120220A (en) Magnetic head
JPS5677932A (en) Magnetic recording medium
JPS5274354A (en) Electrosensitive recorder
JPS5746326A (en) Magnetic recording medium
JPS5517811A (en) Magnetic recording media