JPH059844B2 - - Google Patents

Info

Publication number
JPH059844B2
JPH059844B2 JP9305483A JP9305483A JPH059844B2 JP H059844 B2 JPH059844 B2 JP H059844B2 JP 9305483 A JP9305483 A JP 9305483A JP 9305483 A JP9305483 A JP 9305483A JP H059844 B2 JPH059844 B2 JP H059844B2
Authority
JP
Japan
Prior art keywords
magnetic
copolymer
magnetic powder
polyurethane
acid
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
JP9305483A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59218627A (ja
Inventor
Shozo Kikukawa
Yoshitaka Yasufuku
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP9305483A priority Critical patent/JPS59218627A/ja
Priority to US06/614,465 priority patent/US4562117A/en
Publication of JPS59218627A publication Critical patent/JPS59218627A/ja
Publication of JPH059844B2 publication Critical patent/JPH059844B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record 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
    • G11B5/712Record 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 surface treatment or coating of magnetic particles
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record 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
    • G11B5/702Record 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 bonding agent
    • G11B5/7021Record 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 bonding agent containing a polyurethane or a polyisocyanate

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP9305483A 1983-05-26 1983-05-26 磁気記録媒体 Granted JPS59218627A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP9305483A JPS59218627A (ja) 1983-05-26 1983-05-26 磁気記録媒体
US06/614,465 US4562117A (en) 1983-05-26 1984-05-25 Magnetic recording medium and a process of fabricating such magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9305483A JPS59218627A (ja) 1983-05-26 1983-05-26 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS59218627A JPS59218627A (ja) 1984-12-08
JPH059844B2 true JPH059844B2 (enrdf_load_stackoverflow) 1993-02-08

Family

ID=14071790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9305483A Granted JPS59218627A (ja) 1983-05-26 1983-05-26 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS59218627A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0782641B2 (ja) * 1986-01-14 1995-09-06 株式会社東芝 磁気記録媒体用強磁性粉末およびそれを用いた磁気記録媒体

Also Published As

Publication number Publication date
JPS59218627A (ja) 1984-12-08

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