KR870002554A - High density magnetic recording magnetic component and magnetic recording medium using the same - Google Patents

High density magnetic recording magnetic component and magnetic recording medium using the same Download PDF

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Publication number
KR870002554A
KR870002554A KR1019860007201A KR860007201A KR870002554A KR 870002554 A KR870002554 A KR 870002554A KR 1019860007201 A KR1019860007201 A KR 1019860007201A KR 860007201 A KR860007201 A KR 860007201A KR 870002554 A KR870002554 A KR 870002554A
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KR
South Korea
Prior art keywords
magnetic recording
recording medium
high density
magnetic
component
Prior art date
Application number
KR1019860007201A
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Korean (ko)
Other versions
KR900004750B1 (en
Inventor
오사무 구보
쯔또무 노무라
다다시 이또오
히로다까 요꼬야마
Original Assignee
와타리 스기이찌로
가부시끼 가이샤 도오시바
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.)
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Application filed by 와타리 스기이찌로, 가부시끼 가이샤 도오시바 filed Critical 와타리 스기이찌로
Publication of KR870002554A publication Critical patent/KR870002554A/en
Application granted granted Critical
Publication of KR900004750B1 publication Critical patent/KR900004750B1/en

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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

Abstract

내용 없음No content

Description

고밀도 자기기록용 자성분과 그를 이용한 자기기록용 매체High density magnetic recording magnetic component and magnetic recording medium using the same

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (11)

하나의 화학식 당 0.05 내지 1.0의 Sn을 함유하되 평균입경이 0.02 내지 0.2㎛이고, 보자력이 200 내지 2000Ge인 육방정계 페라이트로 되어진 것을 특징으로 하는 고밀도 자기기록용 자성분.A magnetic component for high density magnetic recording containing Sn of 0.05 to 1.0 per chemical formula, wherein the composition is made of hexagonal ferrite having an average particle diameter of 0.02 to 0.2 µm and a coercive force of 200 to 2000 Ge. 제1항에 있어서, 육방정계 페라이트는 일반식 AFe(12-x-y)MxSnyO19(단 A는 Ba, Sr, Ca 및 Pb중에서 선택된 1종 이상의 원소이고, M은 Mn, Co, Zn, Ni, In, Se, Ti, Ge, Zr, B, Nb, Sb, T, Cr, Mo 및 W중에서 선택된 하나 이상의 원소이며, x는 0 내지 2.5인 수, y는 0.05 내지 1.0인 수를 각각 나타낸다)로 표시되는 고밀도 자기기록용 자성분.The method of claim 1, wherein the hexagonal ferrite is a general formula AFe (12-xy) M x Sn y O 19 (where A is at least one element selected from Ba, Sr, Ca and Pb, M is Mn, Co, Zn , Ni, In, Se, Ti, Ge, Zr, B, Nb, Sb, T, Cr, Mo, and at least one element selected from W, x is a number from 0 to 2.5, y is a number from 0.05 to 1.0, respectively Magnetic component for high density magnetic recording. 제2항에 있어서, A는 Ba로 되어진 고밀도 자기기록용 자성분.The magnetic component for high density magnetic recording according to claim 2, wherein A is Ba. 제2항에 있어서, M은 Co-Ti 또는 Co-Nb의 조합으로 되어진 고밀도 자기기록용 자성분.The magnetic component for high density magnetic recording according to claim 2, wherein M is made of a combination of Co-Ti or Co-Nb. 제2항에 있어서, y는 0.1 내지 0.5인 것을 특징으로 하는 고밀도 자기기록용 자성분.The magnetic component for high density magnetic recording according to claim 2, wherein y is 0.1 to 0.5. 하나의 화학식 당 0.05 내지 1.0의 Sn을 함유하되 평균 입경이 0.02 내지 0.2㎛이며 보자력이 200 내지 2,000Oe인 육방정계 페라이트를 지지체의 표면에 부착시켜서 되어진 것을 특징으로 하는 고밀도 자기기록용 매체.A high-density magnetic recording medium comprising hexagonal ferrite containing 0.05 to 1.0 Sn per chemical formula and having an average particle diameter of 0.02 to 0.2 µm and a coercive force of 200 to 2,000 Oe on a surface of a support. 제6항에 있어서, 육방정계 페라이트는 일반식 AFe(12-x-y)MxSnyO19(단 A는 Ba, Sr, Ca 및 Pb중에서 선택된 하나 이상의 원소이고 M은 Mn, Co, Zr, Ni, In, Se, Ti, Ge, Zr, V, Nb, Sb, Ta, Cr, Mo 및 W중에서 선택된 하나이상의 원소이며, x는 1 내지 2.5인 수 y는 0.05 내지 1.0인 수를 각각 나타낸다)로 표시되는 자기기록용 매체.The method of claim 6, wherein the hexagonal ferrite is a general formula AFe (12-xy) M x Sn y O 19 (where A is at least one element selected from Ba, Sr, Ca and Pb and M is Mn, Co, Zr, Ni , In, Se, Ti, Ge, Zr, V, Nb, Sb, Ta, Cr, Mo, and at least one element selected from W, x is a number of 1 to 2.5 y represents a number of 0.05 to 1.0, respectively) Magnetic recording medium displayed. 제7항에 있어서, A는 Ba로 되어진 자기기록용 매체.8. The magnetic recording medium of claim 7, wherein A is Ba. 제7항에 있어서, M은 Co-Ti 또는 Co-Nb의 조합으로 되어진 자기기록용 매체.8. The magnetic recording medium of claim 7, wherein M is made of a combination of Co-Ti or Co-Nb. 제7항에 있어서, y는 0.1 내지 0.5인 것을 특징으로 하는 자기기록용 매체.8. The magnetic recording medium of claim 7, wherein y is 0.1 to 0.5. 제6항에 있어서, 육방정계 페라이트는 바인더 수지와 함께 지지체의 표면에 도포되어지는 것을 특징으로 하는 자기기록용 매체.7. The magnetic recording medium of claim 6, wherein the hexagonal ferrite is coated on the surface of the support together with the binder resin. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019860007201A 1985-08-29 1986-08-29 Magnetic material for high density magnetic recording and medium of its using KR900004750B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60190113A JP2509558B2 (en) 1985-08-29 1985-08-29 Magnetic powder for high density magnetic recording and magnetic recording medium using the same
JP60-190113 1985-08-29

Publications (2)

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

Family

ID=16252595

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860007201A KR900004750B1 (en) 1985-08-29 1986-08-29 Magnetic material for high density magnetic recording and medium of its using

Country Status (3)

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JP (1) JP2509558B2 (en)
KR (1) KR900004750B1 (en)
DE (1) DE3628874A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06104574B2 (en) * 1985-11-21 1994-12-21 日本ゼオン株式会社 Coating film type magnetic powder for magnetic recording
US4820433A (en) * 1986-09-05 1989-04-11 Nippon Zeon Co., Ltd. Magnetic powder for magnetic recording
JPH0582324A (en) * 1991-02-27 1993-04-02 Toshiba Corp Magnetic recording magnetic powder and magnetic recording medium using the same
JP3095047B2 (en) * 1993-01-28 2000-10-03 戸田工業株式会社 Magnetoplumbite-type ferrite particle powder for magnetic card and method for producing the same

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
JPS6251026A (en) 1987-03-05
KR900004750B1 (en) 1990-07-05
JP2509558B2 (en) 1996-06-19
DE3628874A1 (en) 1987-03-05
DE3628874C2 (en) 1989-10-12

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