JPH0437483B2 - - Google Patents

Info

Publication number
JPH0437483B2
JPH0437483B2 JP17129382A JP17129382A JPH0437483B2 JP H0437483 B2 JPH0437483 B2 JP H0437483B2 JP 17129382 A JP17129382 A JP 17129382A JP 17129382 A JP17129382 A JP 17129382A JP H0437483 B2 JPH0437483 B2 JP H0437483B2
Authority
JP
Japan
Prior art keywords
parts
barium sulfate
sulfate powder
back coat
alkaline
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
JP17129382A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5960733A (ja
Inventor
Takeshi Matsura
Akira Morioka
Yoshuki Takahira
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP17129382A priority Critical patent/JPS5960733A/ja
Priority to EP19860100267 priority patent/EP0192032B1/en
Priority to DE8686100267T priority patent/DE3378735D1/de
Priority to EP19830109714 priority patent/EP0105471B1/en
Priority to DE8383109714T priority patent/DE3373584D1/de
Priority to KR1019830004616A priority patent/KR910004010B1/ko
Publication of JPS5960733A publication Critical patent/JPS5960733A/ja
Priority to US07/013,286 priority patent/US4871606A/en
Publication of JPH0437483B2 publication Critical patent/JPH0437483B2/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

Landscapes

  • Lubricants (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP17129382A 1982-09-30 1982-09-30 磁気記録媒体 Granted JPS5960733A (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP17129382A JPS5960733A (ja) 1982-09-30 1982-09-30 磁気記録媒体
EP19860100267 EP0192032B1 (en) 1982-09-30 1983-09-28 Magnetic recording medium
DE8686100267T DE3378735D1 (en) 1982-09-30 1983-09-28 Magnetic recording medium
EP19830109714 EP0105471B1 (en) 1982-09-30 1983-09-28 Magnetic recording medium
DE8383109714T DE3373584D1 (en) 1982-09-30 1983-09-28 Magnetic recording medium
KR1019830004616A KR910004010B1 (ko) 1982-09-30 1983-09-29 자기기록매체
US07/013,286 US4871606A (en) 1982-09-30 1987-02-11 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17129382A JPS5960733A (ja) 1982-09-30 1982-09-30 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5960733A JPS5960733A (ja) 1984-04-06
JPH0437483B2 true JPH0437483B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-06-19

Family

ID=15920615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17129382A Granted JPS5960733A (ja) 1982-09-30 1982-09-30 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS5960733A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
JPS5960733A (ja) 1984-04-06

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