KR850007504A - 수직 자기 기록매체 - Google Patents

수직 자기 기록매체 Download PDF

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Publication number
KR850007504A
KR850007504A KR1019850002227A KR850002227A KR850007504A KR 850007504 A KR850007504 A KR 850007504A KR 1019850002227 A KR1019850002227 A KR 1019850002227A KR 850002227 A KR850002227 A KR 850002227A KR 850007504 A KR850007504 A KR 850007504A
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KR
South Korea
Prior art keywords
intermediate layer
vertical magnetic
magnetic recording
magnetic field
recording medium
Prior art date
Application number
KR1019850002227A
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English (en)
Other versions
KR900006482B1 (ko
Inventor
마사아끼 후다모도 (외 3)
Original Assignee
미다 가쓰시게 (외 1)
가부시기 가이샤 히다찌 세이사꾸쇼
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=13444512&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR850007504(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 미다 가쓰시게 (외 1), 가부시기 가이샤 히다찌 세이사꾸쇼 filed Critical 미다 가쓰시게 (외 1)
Publication of KR850007504A publication Critical patent/KR850007504A/ko
Application granted granted Critical
Publication of KR900006482B1 publication Critical patent/KR900006482B1/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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/656—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing Co
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/672—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having different compositions in a plurality of magnetic layers, e.g. layer compositions having differing elemental components or differing proportions of elements
    • 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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7377—Physical structure of underlayer, e.g. texture
    • 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
    • G11B5/73911—Inorganic substrates
    • G11B5/73921—Glass or ceramic substrates
    • 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
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0026—Pulse recording
    • G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12674—Ge- or Si-base component

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

내용 없음

Description

수직 자기 기록매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본원 발명의 일실시예에 있어서의 수직자기 기록매체를 나타낸 단면도. 제2도는 본원 발명의 다른 실시예에 있어서의 수직자기기록매체를 나타낸 단면도.

Claims (9)

  1. 기판상에 Si 및 Ge로 이루어진 군에서 선택한 최소한 1원소를 주성분으로 하는 재료로 이루어진 중간층을 설치하고, 이 중간층상에 Co 기합금으로 이루어진 수직자화막을 설치하여 이루어지는 것을 특징으로하는 수직자기 기록매체.
  2. 상기 중간층의 두께가 100Å 이상, 1㎛이하인 것을 특징으로하는 특허청구의 범위 1기재의 수직자기 기록매체.
  3. 상기 중간층의 두께가 150Å 이상, 1000Å 이하인 것을 특징으로하는 특허청구의 범위 2기재의 수직자기 기록매체.
  4. 상기 중간층이 Si 및 Ge 이외의 원소를, 이 중간층의 결정구조에 다이어몬드구조 및 비정질구조 이외의 것이 나타나지 않는 범위의 양만큼 첨가한 재료로 이루어지는 것을 특징으로하는 특허청구의 범위 1기재의 수직자기 기록매체.
  5. 상기 중간층이 Si 및 Ge 이외의 원소를, 이 중간층의 결정구조에 다이어몬드구조 및 비정질구조 이외의 것이 나타나지 않는 범위의 양만큼 첨가한 재료로 이루어지는 것을 특징으로하는 특허청구의 범위 2기재의 수직자기 기록매체.
  6. 상기 중간층이 Si 및 Ge 이외의 원소를, 이 중간층의 결정구조에 다이어몬드구조 및 비정질구조 이외의 것이 나타나지 않는 범위의 양만큼 첨가한 재료로 이루어지는 것을 특징으로하는 특허청구의 범위 3기재의 수직자기 기록매
  7. 상기 기판의 최소한 상기 중간층을 형성하는 면이 연자성재료로 이루어지는 것을 특징으로하는 특허청구의 범위 1기재의 수직자기 기록매체.
  8. 상기 기판의 최소한 상기 중간층을 형성하는 면이 연자성재료로 이루어지는 것을 특징으로하는 특허청구의 범위 2기재의 수직자기 기록매체.
  9. 상기 기판의 최소한 상기 중간층을 형성하는 면이 연자성재료로 이루어지는 것을 특징으로하는 특허청구의 범위 3기재의 수직자기 기록매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850002227A 1984-04-11 1985-04-03 수직자기기록매체 KR900006482B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP70888 1984-04-11
JP84-70888 1984-04-11
JP59070888A JPH0618059B2 (ja) 1984-04-11 1984-04-11 垂直磁気記録媒体

Publications (2)

Publication Number Publication Date
KR850007504A true KR850007504A (ko) 1985-12-04
KR900006482B1 KR900006482B1 (ko) 1990-09-01

Family

ID=13444512

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850002227A KR900006482B1 (ko) 1984-04-11 1985-04-03 수직자기기록매체

Country Status (5)

Country Link
US (1) US4707756A (ko)
EP (1) EP0158338B2 (ko)
JP (1) JPH0618059B2 (ko)
KR (1) KR900006482B1 (ko)
DE (1) DE3566849D1 (ko)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
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US4677032A (en) * 1985-09-23 1987-06-30 International Business Machines Corporation Vertical magnetic recording media with multilayered magnetic film structure
JPS62208412A (ja) * 1986-03-07 1987-09-12 Hitachi Ltd 磁気記録媒体およびその製造方法
US4786553A (en) * 1986-03-28 1988-11-22 Hitachi, Ltd. Magnetic recording medium
US4847161A (en) * 1986-12-19 1989-07-11 Siemens Aktiengesellschaft Magnetically anisotropic recording medium
JP2791015B2 (ja) * 1986-12-24 1998-08-27 株式会社日立製作所 磁気記録媒体
DE3644823A1 (de) * 1986-12-31 1988-07-14 Basf Ag Magnetische aufzeichnungstraeger
US4786564A (en) * 1987-02-25 1988-11-22 Komag, Inc. Method for manufacturing a magnetic disk having reduced bit shift, minimized noise, increased resolution and uniform magnetic characteristics, and the resulting disk
JPS63237210A (ja) * 1987-03-25 1988-10-03 Sony Corp 磁気記録媒体
JP2579184B2 (ja) * 1987-03-30 1997-02-05 日立マクセル株式会社 磁気記録媒体
JPS6464114A (en) * 1987-09-03 1989-03-10 Ricoh Kk Magnetic recording medium
KR920001981B1 (ko) * 1987-10-09 1992-03-07 미쓰비시전기 주식회사 자기기록매체
US5060097A (en) * 1989-01-06 1991-10-22 Hitachi, Ltd. Magnetic disc file including a slider which exhibits reduced deformation during operation
EP0401835B1 (en) * 1989-06-09 1997-08-13 Matsushita Electric Industrial Co., Ltd. A magnetic material
US5112699A (en) * 1990-03-12 1992-05-12 International Business Machines Corporation Metal-metal epitaxy on substrates and method of making
JPH0594611A (ja) * 1991-09-30 1993-04-16 Nec Corp 磁気記録媒体
JPH07141640A (ja) * 1993-11-17 1995-06-02 Matsushita Electric Ind Co Ltd 磁気記録媒体及びその製造方法
US5479097A (en) * 1993-12-29 1995-12-26 Storage Technology Corporation Data corruption detector for magnetic media
KR19980024169A (ko) * 1996-09-04 1998-07-06 가나이 츠토무 수직자기기록매체 및 그것을 사용한 자기기록 재생장치
US6403203B2 (en) 1997-05-29 2002-06-11 Hitachi, Ltd. Magnetic recording medium and magnetic recording apparatus using the same
US6183893B1 (en) 1998-04-06 2001-02-06 Hitachi, Ltd. Perpendicular magnetic recording medium and magnetic storage apparatus using the same
JP3220116B2 (ja) 1999-07-06 2001-10-22 株式会社日立製作所 垂直磁気記録媒体および磁気記憶装置
JP3665261B2 (ja) 2000-09-01 2005-06-29 株式会社日立製作所 垂直磁気記録媒体および磁気記憶装置
US7166375B2 (en) 2000-12-28 2007-01-23 Showa Denko K.K. Magnetic recording medium utilizing a multi-layered soft magnetic underlayer, method of producing the same and magnetic recording and reproducing device
JP3625428B2 (ja) * 2001-03-12 2005-03-02 株式会社東芝 垂直磁気記録媒体
WO2004032121A1 (en) * 2002-09-30 2004-04-15 Seagate Technology Llc Intermediate layer for perpendicular magnetic recording media
CN108786839A (zh) * 2018-01-18 2018-11-13 合肥小小作为信息科技有限公司 一种催化剂用金属载体的制备方法

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Publication number Priority date Publication date Assignee Title
FR1358761A (fr) * 1963-05-27 1964-04-17 Matériau magnétique en couches minces magnétiques et non magnétiques
JPS54145505A (en) * 1978-05-04 1979-11-13 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS55163630A (en) * 1979-06-07 1980-12-19 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS5634143A (en) * 1979-08-25 1981-04-06 Hitachi Maxell Ltd Magnetic recording medium
JPS5724022A (en) * 1980-07-16 1982-02-08 Toshiba Corp Production of magnetic recording substance
JPS5758226A (en) * 1980-09-22 1982-04-07 Toshiba Corp Magnetic recording medium
JPS57149706A (en) * 1981-03-12 1982-09-16 Tdk Corp Magnetic recording medium
JPS57173917A (en) * 1981-04-20 1982-10-26 Canon Inc Magnetic recording medium
JPS6063710A (ja) * 1983-09-19 1985-04-12 Hitachi Ltd 磁気ディスク媒体
US4661420A (en) * 1984-02-06 1987-04-28 Nihon Shinku Gijutsu Kabushiki Kaisha Optical magnetic recording member

Also Published As

Publication number Publication date
JPH0618059B2 (ja) 1994-03-09
US4707756A (en) 1987-11-17
KR900006482B1 (ko) 1990-09-01
EP0158338B2 (en) 1993-02-24
DE3566849D1 (en) 1989-01-19
JPS60214417A (ja) 1985-10-26
EP0158338B1 (en) 1988-12-14
EP0158338A2 (en) 1985-10-16
EP0158338A3 (en) 1987-01-14

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