JPH0357537B2 - - Google Patents

Info

Publication number
JPH0357537B2
JPH0357537B2 JP55186551A JP18655180A JPH0357537B2 JP H0357537 B2 JPH0357537 B2 JP H0357537B2 JP 55186551 A JP55186551 A JP 55186551A JP 18655180 A JP18655180 A JP 18655180A JP H0357537 B2 JPH0357537 B2 JP H0357537B2
Authority
JP
Japan
Prior art keywords
magnetic
carbon black
ratio
particle size
tape
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
Application number
JP55186551A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57111828A (en
Inventor
Takayasu Hirano
Takao Sakata
Shigeo Kimura
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 JP55186551A priority Critical patent/JPS57111828A/ja
Publication of JPS57111828A publication Critical patent/JPS57111828A/ja
Publication of JPH0357537B2 publication Critical patent/JPH0357537B2/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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/735—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer
    • G11B5/7356—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP55186551A 1980-12-29 1980-12-29 Magnetic recording medium Granted JPS57111828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55186551A JPS57111828A (en) 1980-12-29 1980-12-29 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55186551A JPS57111828A (en) 1980-12-29 1980-12-29 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS57111828A JPS57111828A (en) 1982-07-12
JPH0357537B2 true JPH0357537B2 (enExample) 1991-09-02

Family

ID=16190486

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55186551A Granted JPS57111828A (en) 1980-12-29 1980-12-29 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57111828A (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59218632A (ja) * 1983-05-27 1984-12-08 Fuji Photo Film Co Ltd 磁気記録媒体
JPS59223937A (ja) * 1983-06-03 1984-12-15 Fuji Photo Film Co Ltd 磁気記録媒体
JPS61145723A (ja) * 1984-12-19 1986-07-03 Fuji Photo Film Co Ltd 磁気記録媒体
JPS62124624A (ja) * 1985-11-22 1987-06-05 Sumitomo Suriim Kk 磁気記録媒体
EP1645602A1 (en) * 2004-10-08 2006-04-12 Sun Chemical B.V. Coating composition, radiation-absorbing coating, coated support and use thereof

Also Published As

Publication number Publication date
JPS57111828A (en) 1982-07-12

Similar Documents

Publication Publication Date Title
JP2805359B2 (ja) 磁気記録媒体
JPH0357537B2 (enExample)
JPH0746419B2 (ja) 磁気記録媒体
JPH0680529B2 (ja) 磁気記録媒体
JPH0249490B2 (enExample)
JP3355791B2 (ja) 磁気記録媒体
JP2600796B2 (ja) 磁気記録媒体
US5648150A (en) Magnetic recording medium having a backcoat layer containing carbon black and platelet inorganic powder
JPS6355727A (ja) 磁気記録媒体
KR920009771B1 (ko) 자기 기록 매체
JP3448386B2 (ja) 磁気テ―プ
JPS6355726A (ja) 磁気記録媒体
JPS5928240A (ja) 磁気記録媒体
JPH08129742A (ja) 磁気記録媒体
KR950008666B1 (ko) 자기기록매체
JPH0479056B2 (enExample)
JPH1186267A (ja) 磁気記録媒体
JPH0542058B2 (enExample)
JPH04310624A (ja) 磁気記録媒体の製造方法
JPS6053370B2 (ja) 磁気記録媒体
JPH0487022A (ja) 磁性塗料及び磁気記録媒体
JPS5984347A (ja) 磁気記録媒体
JPS634412A (ja) 磁気記録媒体
JPH027223A (ja) 磁気記録媒体
JPH01248318A (ja) 磁気記録媒体