JPH039530B2 - - Google Patents

Info

Publication number
JPH039530B2
JPH039530B2 JP57137892A JP13789282A JPH039530B2 JP H039530 B2 JPH039530 B2 JP H039530B2 JP 57137892 A JP57137892 A JP 57137892A JP 13789282 A JP13789282 A JP 13789282A JP H039530 B2 JPH039530 B2 JP H039530B2
Authority
JP
Japan
Prior art keywords
carbon black
magnetic
aluminum oxide
adsorbed
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.)
Expired - Lifetime
Application number
JP57137892A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5930238A (ja
Inventor
Yukio Matsumoto
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP57137892A priority Critical patent/JPS5930238A/ja
Priority to DE3328719A priority patent/DE3328719C2/de
Priority to US06/521,577 priority patent/US4595631A/en
Publication of JPS5930238A publication Critical patent/JPS5930238A/ja
Publication of JPH039530B2 publication Critical patent/JPH039530B2/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

Landscapes

  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP57137892A 1982-08-10 1982-08-10 磁気記録媒体 Granted JPS5930238A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP57137892A JPS5930238A (ja) 1982-08-10 1982-08-10 磁気記録媒体
DE3328719A DE3328719C2 (de) 1982-08-10 1983-08-09 Magnetisches Aufzeichnungsmaterial
US06/521,577 US4595631A (en) 1982-08-10 1983-08-09 Magnetic recording media comprising carbon black-adsorbed metal oxide particles in a magnetic recording layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57137892A JPS5930238A (ja) 1982-08-10 1982-08-10 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5930238A JPS5930238A (ja) 1984-02-17
JPH039530B2 true JPH039530B2 (enrdf_load_stackoverflow) 1991-02-08

Family

ID=15209110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57137892A Granted JPS5930238A (ja) 1982-08-10 1982-08-10 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS5930238A (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5218561B2 (enrdf_load_stackoverflow) * 1973-06-29 1977-05-23
JPS5724027A (en) * 1980-07-16 1982-02-08 Tdk Corp Magnetic recording medium
JPS5724026A (en) * 1980-07-16 1982-02-08 Tdk Corp Magnetic recording medium

Also Published As

Publication number Publication date
JPS5930238A (ja) 1984-02-17

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