KR900002251A - 가요성 자기디스크 - Google Patents

가요성 자기디스크 Download PDF

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Publication number
KR900002251A
KR900002251A KR1019890008553A KR890008553A KR900002251A KR 900002251 A KR900002251 A KR 900002251A KR 1019890008553 A KR1019890008553 A KR 1019890008553A KR 890008553 A KR890008553 A KR 890008553A KR 900002251 A KR900002251 A KR 900002251A
Authority
KR
South Korea
Prior art keywords
magnetic disk
flexible magnetic
synthetic resin
resin film
flexible
Prior art date
Application number
KR1019890008553A
Other languages
English (en)
Other versions
KR0171183B1 (ko
Inventor
아끼라 미야께
데루히사 미야따
Original Assignee
나가이 아쯔시
히다찌마꾸세루 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
Application filed by 나가이 아쯔시, 히다찌마꾸세루 가부시끼가이샤 filed Critical 나가이 아쯔시
Publication of KR900002251A publication Critical patent/KR900002251A/ko
Application granted granted Critical
Publication of KR0171183B1 publication Critical patent/KR0171183B1/ko

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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31565—Next to polyester [polyethylene terephthalate, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Landscapes

  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Laminated Bodies (AREA)

Abstract

내용 없음

Description

가요성 자기디스크
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (3)

  1. 비자성지지체로서의 합성수지막상에 자성층을 마련해서 형성하는 도너트판형상의 가요성 자기디스크에 있어서, 상기 자기디스크를 60℃, 90% RH의 환경하에 64시간 유지한 후 실내온도 중으로 꺼내어 72시간 방치한 후의 직경의 치수수축률이 0.04%이하인 것을 특징으로 하는 가요성 자기디스크.
  2. 특허청구의 범위 제 1 항에 있어서, 상기 가요성 자기디스크의 자성층이 수축 처리된 합성수지 막의 양면에 균등하게 마련되어서 형성되는 것을 특징으로 하는 가요성 자기디스크.
  3. 특허청구의 범위 제 1 항에 있어서, 상기 가요성 자기디스크의 상기 합성수지막이 폴리에틸렌 테레프탈레이타막인 것을 특징으로 하는 가요성 자기디스크.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890008553A 1988-07-13 1989-06-21 가요성 자기디스크 KR0171183B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63-174635 1988-07-13
JP63174635A JP2524198B2 (ja) 1988-07-13 1988-07-13 可撓性磁気ディスク

Publications (2)

Publication Number Publication Date
KR900002251A true KR900002251A (ko) 1990-02-28
KR0171183B1 KR0171183B1 (ko) 1999-04-15

Family

ID=15982041

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890008553A KR0171183B1 (ko) 1988-07-13 1989-06-21 가요성 자기디스크

Country Status (4)

Country Link
US (1) US5182153A (ko)
EP (1) EP0350877A3 (ko)
JP (1) JP2524198B2 (ko)
KR (1) KR0171183B1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100262439B1 (ko) * 1990-05-21 2000-08-01 사토 도리 정보기록용 카트리지와 플렉시블 자기기록매체 및 그 제조방법
DE4418417A1 (de) * 1994-05-26 1995-11-30 Schuler Pressen Gmbh & Co Umsetzvorrichtung in einer Umformmaschine, insbesondere einer Transferpresse
US6485795B2 (en) * 1998-07-22 2002-11-26 Fuji Photo Film Co., Ltd. Method and apparatus for producing magnetic recording medium having a low heat shrinkage factor

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE420439B (sv) * 1978-02-08 1981-10-05 Saab Scania Ab Navvexel av planetvexeltyp
US4275107A (en) * 1980-05-19 1981-06-23 International Business Machines Corporation Polyester stabilization process and product
JPS592230A (ja) * 1982-06-25 1984-01-07 Toshiba Corp フロッピー磁気ディスク記録媒体の製造方法
JPS59107424A (ja) * 1982-12-08 1984-06-21 Fuji Photo Film Co Ltd 磁気記録媒体の製法
JP2546225B2 (ja) * 1983-05-09 1996-10-23 東レ株式会社 磁気記録媒体
JPS6063716A (ja) * 1983-09-16 1985-04-12 Fuji Photo Film Co Ltd 磁気記録媒体
JPS60151830A (ja) * 1984-01-20 1985-08-09 Fuji Photo Film Co Ltd 磁気記録媒体
JPS60229220A (ja) * 1984-03-09 1985-11-14 Toshiba Corp 磁気記録媒体
JPS60228128A (ja) * 1984-04-26 1985-11-13 Teijin Ltd 熱可塑性樹脂フイルム
JPS61115231A (ja) * 1984-11-09 1986-06-02 Nissin Electric Co Ltd 磁気記録媒体
JPS61236021A (ja) * 1985-04-10 1986-10-21 Diafoil Co Ltd 磁気デイスク用３−メチルブテン−１重合体フイルム
JPH0626013B2 (ja) * 1985-09-11 1994-04-06 帝人株式会社 スチルビデオフロツピ−用磁気記録媒体
JPH0624061B2 (ja) * 1985-09-25 1994-03-30 帝人株式会社 マイクロフロツピ−デイスク
JPH0626015B2 (ja) * 1985-10-09 1994-04-06 帝人株式会社 磁気記録フレキシブルデイスク
JPS63104822A (ja) * 1986-10-22 1988-05-10 Toray Ind Inc 二軸配向ポリエチレンテレフタレ−トフイルム

Also Published As

Publication number Publication date
US5182153A (en) 1993-01-26
KR0171183B1 (ko) 1999-04-15
JP2524198B2 (ja) 1996-08-14
EP0350877A2 (en) 1990-01-17
EP0350877A3 (en) 1991-01-30
JPH0224833A (ja) 1990-01-26

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