KR900004750B1 - 고밀도 자기기록용 자성분과 그를 이용한 자기기록용 매체 - Google Patents

고밀도 자기기록용 자성분과 그를 이용한 자기기록용 매체 Download PDF

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Publication number
KR900004750B1
KR900004750B1 KR1019860007201A KR860007201A KR900004750B1 KR 900004750 B1 KR900004750 B1 KR 900004750B1 KR 1019860007201 A KR1019860007201 A KR 1019860007201A KR 860007201 A KR860007201 A KR 860007201A KR 900004750 B1 KR900004750 B1 KR 900004750B1
Authority
KR
South Korea
Prior art keywords
magnetic recording
magnetic
high density
recording medium
ferrite
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
KR1019860007201A
Other languages
English (en)
Korean (ko)
Other versions
KR870002554A (ko
Inventor
오사무 구보
쯔또무 노무라
다다시 이또오
히로 다까 요꼬야마
Original Assignee
가부시끼 가이샤 도오시바
와타리 스기이찌로
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 가부시끼 가이샤 도오시바, 와타리 스기이찌로 filed Critical 가부시끼 가이샤 도오시바
Publication of KR870002554A publication Critical patent/KR870002554A/ko
Application granted granted Critical
Publication of KR900004750B1 publication Critical patent/KR900004750B1/ko
Expired 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
    • 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
    • G11B5/70626—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 containing non-metallic substances
    • G11B5/70642—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 containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites

Landscapes

  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
  • Compounds Of Iron (AREA)
KR1019860007201A 1985-08-29 1986-08-29 고밀도 자기기록용 자성분과 그를 이용한 자기기록용 매체 Expired KR900004750B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60-190113 1985-08-29
JP60190113A JP2509558B2 (ja) 1985-08-29 1985-08-29 高密度磁気記録用磁性粉およびそれを用いた磁気記録用媒体

Publications (2)

Publication Number Publication Date
KR870002554A KR870002554A (ko) 1987-03-31
KR900004750B1 true KR900004750B1 (ko) 1990-07-05

Family

ID=16252595

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860007201A Expired KR900004750B1 (ko) 1985-08-29 1986-08-29 고밀도 자기기록용 자성분과 그를 이용한 자기기록용 매체

Country Status (3)

Country Link
JP (1) JP2509558B2 (enExample)
KR (1) KR900004750B1 (enExample)
DE (1) DE3628874A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06104574B2 (ja) * 1985-11-21 1994-12-21 日本ゼオン株式会社 塗布膜タイプの磁気記録用磁性粉
US4820433A (en) * 1986-09-05 1989-04-11 Nippon Zeon Co., Ltd. Magnetic powder for magnetic recording
JPH0582324A (ja) * 1991-02-27 1993-04-02 Toshiba Corp 磁気記録用磁性粉およびそれを用いた磁気記録媒体
JP3095047B2 (ja) * 1993-01-28 2000-10-03 戸田工業株式会社 磁気カード用マグネトプランバイト型フェライト粒子粉末及びその製造法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5667904A (en) * 1979-11-08 1981-06-08 Toshiba Corp Preparation method of megnetic powder for high density magnetic recording
US4670323A (en) * 1983-11-26 1987-06-02 Ricoh Company, Ltd. Magneto-optic recording medium having a metal oxide recording layer

Also Published As

Publication number Publication date
DE3628874C2 (enExample) 1989-10-12
DE3628874A1 (de) 1987-03-05
JPS6251026A (ja) 1987-03-05
KR870002554A (ko) 1987-03-31
JP2509558B2 (ja) 1996-06-19

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