KR900015077A - 개선된 전자기 변환 특성 및 내환경성을 갖는 자기 기록 매체 - Google Patents

개선된 전자기 변환 특성 및 내환경성을 갖는 자기 기록 매체 Download PDF

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Publication number
KR900015077A
KR900015077A KR1019900004095A KR900004095A KR900015077A KR 900015077 A KR900015077 A KR 900015077A KR 1019900004095 A KR1019900004095 A KR 1019900004095A KR 900004095 A KR900004095 A KR 900004095A KR 900015077 A KR900015077 A KR 900015077A
Authority
KR
South Korea
Prior art keywords
magnetic recording
recording medium
recording media
ferromagnetic component
electromagnetic conversion
Prior art date
Application number
KR1019900004095A
Other languages
English (en)
Other versions
KR100217530B1 (ko
Inventor
노보루 고야마
야스시 나까노
Original Assignee
이데 메구미
코니카 가부시끼가이샤
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26418525&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR900015077(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP1077450A external-priority patent/JPH02254627A/ja
Priority claimed from JP1079307A external-priority patent/JPH02257420A/ja
Application filed by 이데 메구미, 코니카 가부시끼가이샤 filed Critical 이데 메구미
Publication of KR900015077A publication Critical patent/KR900015077A/ko
Application granted granted Critical
Publication of KR100217530B1 publication Critical patent/KR100217530B1/ko

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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
    • 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
    • G11B5/716—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 two or more magnetic layers
    • 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
    • G11B5/714—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 dimension of the magnetic particles

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)

Abstract

내용 없음.

Description

개선된 전자기 변환 특성 및 내환경성을 갖는 자기 기록 매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (6)

  1. 지지체 및 이 지지체 상에 제공되는 복수의 층으로 구성되며, 이 복수층 중 최상부층에 Fe-Al 강자성분 및 결합체가 함유되는 것을 특징으로 하는 기록 매체.
  2. 제1항에 있어서, 최상부층의 두께가 0.1-1.5㎛인 것을 특징으로 하는 자기 기록 매체.
  3. 제1항에 있어서, 최상부층에 인접한 층에 함유된 강자성분의 평균 장축 길이가 최상부층에 함유된 강자성분의 평균 장축 길이 보다 더 긴 것을 특징으로 하는 자기 기록 매체.
  4. 제3항에 있어서, 최상부층에 함유된 강자성분의 평균 장축 길이가 0.35㎛이하인 것을 특징으로 하는 자기 기록 매체.
  5. 제1항에 있어서, 최상부층에 인접한 층이 Fe-Ni 강자성분으로 된 자성 물질을 함유하는 것을 특징으로 하는 자기 기록 매체.
  6. 제1항에 있어서, 결합제가 관능기를 갖는 수지인 것을 특징으로 하는 자기 기록 매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900004095A 1989-03-28 1990-03-27 개선된 전자기 변환 특성 및 내환경성을 갖는 자기 기록 매체 KR100217530B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP1-77450 1989-03-28
JP77450/1989 1989-03-28
JP1077450A JPH02254627A (ja) 1989-03-28 1989-03-28 電磁変換特性と耐環境性の優れた磁気記録媒体
JP79037/1989 1989-03-29
JP1079307A JPH02257420A (ja) 1989-03-29 1989-03-29 電磁変換特性の耐環境性に優れた磁気記録媒体
JP79037/89 1989-03-29

Publications (2)

Publication Number Publication Date
KR900015077A true KR900015077A (ko) 1990-10-25
KR100217530B1 KR100217530B1 (ko) 1999-09-01

Family

ID=26418525

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900004095A KR100217530B1 (ko) 1989-03-28 1990-03-27 개선된 전자기 변환 특성 및 내환경성을 갖는 자기 기록 매체

Country Status (3)

Country Link
EP (1) EP0390391B2 (ko)
KR (1) KR100217530B1 (ko)
DE (1) DE69019220T3 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520155B2 (en) † 1991-04-25 2004-10-27 Fuji Photo Film Co., Ltd. Magnetic recording medium
EP0566378B2 (en) † 1992-04-14 2001-05-09 Konica Corporation Magnetic recording medium
DE19838799A1 (de) * 1998-08-26 2000-03-02 Emtec Magnetics Gmbh Magnetischer Aufzeichnungsträger mit hoher Aufzeichnungsdichte
KR20240064316A (ko) 2022-11-04 2024-05-13 (주)하이즈통상 이륜차용 운전자 하지 보호 신발

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5979432A (ja) * 1982-10-29 1984-05-08 Konishiroku Photo Ind Co Ltd 磁気記録媒体
JPS59207024A (ja) † 1983-05-10 1984-11-24 Konishiroku Photo Ind Co Ltd 磁気記録媒体
JPS6045936A (ja) * 1983-08-22 1985-03-12 Tdk Corp 磁気記録媒体
JPH0693297B2 (ja) † 1987-01-30 1994-11-16 富士写真フイルム株式会社 磁気記録媒体
JPH0690786B2 (ja) † 1987-01-30 1994-11-14 富士写真フイルム株式会社 磁気記録媒体
JPH0833986B2 (ja) † 1987-03-13 1996-03-29 コニカ株式会社 磁気記録媒体

Also Published As

Publication number Publication date
DE69019220T2 (de) 1995-10-12
EP0390391A2 (en) 1990-10-03
DE69019220D1 (de) 1995-06-14
KR100217530B1 (ko) 1999-09-01
EP0390391B1 (en) 1995-05-10
DE69019220T3 (de) 2001-04-05
EP0390391A3 (en) 1991-01-09
EP0390391B2 (en) 2000-12-20

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