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KR850005663A - 탄화철을 함유하는 자기피복 조성물과 자기 기록매체 - Google Patents

탄화철을 함유하는 자기피복 조성물과 자기 기록매체 Download PDF

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Publication number
KR850005663A
KR850005663A KR1019840006584A KR840006584A KR850005663A KR 850005663 A KR850005663 A KR 850005663A KR 1019840006584 A KR1019840006584 A KR 1019840006584A KR 840006584 A KR840006584 A KR 840006584A KR 850005663 A KR850005663 A KR 850005663A
Authority
KR
South Korea
Prior art keywords
coating composition
iron carbide
magnetic
recording medium
magnetic recording
Prior art date
Application number
KR1019840006584A
Other languages
English (en)
Other versions
KR890003200B1 (ko
Inventor
요시유끼(외 1) 시부야
Original Assignee
야마다 미노루
다이낀 고오교오 가부시끼 가이샤
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 야마다 미노루, 다이낀 고오교오 가부시끼 가이샤 filed Critical 야마다 미노루
Publication of KR850005663A publication Critical patent/KR850005663A/ko
Application granted granted Critical
Publication of KR890003200B1 publication Critical patent/KR890003200B1/ko
Expired legal-status Critical Current

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Landscapes

  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
  • Hard Magnetic Materials (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Powder Metallurgy (AREA)

Abstract

내용 없음

Description

탄화철을 함유하는 자기피복 조성물과 자기 기록매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (6)

  1. 탄화철을 함유하는 침상입자로 구성되는 것을 특징으로 하는 자기피복 조성물.
  2. 제1항에 있어서, 침상입자의 평균축비가 적어도 3인 것을 특징으로 하는 피복조성물.
  3. 제1항에 있어서, 침상입자가 적어도 20중량%의 탄화철함량을 갖는 것을 특징으로 하는 피복조성물.
  4. 제1항에 있어서, 탄화철이 표면-처리제와 함께 표면에 피복되는 것을 특징으로 하는 피복조성물.
  5. 제1항에 있어서, 탄화철이 소결방지제를 함유하는 것을 특징으로 하는 피복조성물.
  6. 기체와 그 위에 있는 자기기록층으로 구성되고, 상기 층은 청구범위 1 내지 5항중 어느 하나의 자기 피복 조성물을 피복함으로써 얻게되는 것을 특징으로 하는자기 기록매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019840006584A 1983-12-07 1984-10-23 탄화철을 함유하는 자기피복 조성물과 자기기록매체 Expired KR890003200B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP213875 1983-12-07
JP58231875A JPS60124023A (ja) 1983-12-07 1983-12-07 磁気記録媒体
JP58-231875 1983-12-07

Publications (2)

Publication Number Publication Date
KR850005663A true KR850005663A (ko) 1985-08-28
KR890003200B1 KR890003200B1 (ko) 1989-08-26

Family

ID=16930388

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840006584A Expired KR890003200B1 (ko) 1983-12-07 1984-10-23 탄화철을 함유하는 자기피복 조성물과 자기기록매체

Country Status (2)

Country Link
JP (1) JPS60124023A (ko)
KR (1) KR890003200B1 (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61154110A (ja) * 1984-12-27 1986-07-12 Mitsui Toatsu Chem Inc 磁気記録用針状性炭化鉄微粒子及びその製造方法
JPS62217421A (ja) * 1986-03-17 1987-09-24 Konishiroku Photo Ind Co Ltd 炭化鉄含有磁性層を有する磁気記録媒体
JPS6284426A (ja) * 1985-10-08 1987-04-17 Konishiroku Photo Ind Co Ltd 磁気記録媒体
JPS62217422A (ja) * 1986-03-17 1987-09-24 Konishiroku Photo Ind Co Ltd Ｃｏ被着酸化鉄、炭化鉄含有磁性層を有する磁気記録媒体
JPS6286531A (ja) * 1985-10-12 1987-04-21 Tdk Corp 磁気シ−ト
JPS6285403A (ja) * 1985-10-09 1987-04-18 Tdk Corp 磁気記録媒体
JPS6286537A (ja) * 1985-10-11 1987-04-21 Tdk Corp 磁気デイスク
JPH04246475A (ja) * 1991-01-31 1992-09-02 Daikin Ind Ltd 磁性塗料の製造方法
JPH05266462A (ja) * 1991-11-25 1993-10-15 Tdk Corp 磁気記録媒体
JPH0721550A (ja) * 1993-06-30 1995-01-24 Tdk Corp 磁気記録媒体およびその製造方法
JP4834852B2 (ja) * 2005-01-06 2011-12-14 Ｄｏｗａエレクトロニクス株式会社 金属磁性粉末及びこれを用いた磁気記録媒体

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5565304A (en) * 1978-11-13 1980-05-16 Tdk Corp Production of metal magnetic powder

Also Published As

Publication number Publication date
KR890003200B1 (ko) 1989-08-26
JPS60124023A (ja) 1985-07-02
JPS641853B2 (ko) 1989-01-12

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